GFS-3000

Version:

Product

Portable gas exchange fluorescence system

Gas exchange measurements rely on the basic principle that changes in CO2 and H2O concentrations are determined when air passes through a climate controlled chamber containing a plant sample. The GFS-3000 is suitable for controlled laboratory settings as well as demanding field conditions. The GFS-3000 perfectly complements with other Walz systems giving access to numerous aspects of photosynthesis research. 

The Portable Gas-Exchange and Fluorescence System GFS-3000 enables wide range climate control. All environmental parameters relevant for plant photosynthesis (CO2, H2O, temperature, light, ventilation and flow) can be controlled automatically and over the full physiological range. Optional fluorescence modules further expand the system’s capability. Experimental protocols for automatic light-curves or automatic CO2-curves can be easily programmed.

Main Components of the Basic System Package GFS-3000

  • Control Unit 3200‐C containing the CO2 and H2O analyzer, as well as all components required for the CO2, H2O and flow control
  • Standard Measuring Head 3010‐S featuring high application flexibility containing the ventilation system, temperature and light control
  • LED Light Source 3041-L with warm white LED array providing up to 10 cm2 homogenous illumination
  • AC Power Supply 3200‐N for laboratory use
  • Four Li-ion eSMART Batteries 98 Wh for field work. Li-ion eSMART Quad Charger for simultaneous recharging of up to four eSMART batteries.

Optional Components and Accessories of the GFS-3000

  • LED‐Array/PAM‐Fluorometer 3057‐FL for illumination of the leaf area and fluorescence measurements
  • Fiberoptics PAM‐Fluorometer 3050‐F to analyze fluorescence in sunlight
  • Miscellaneous accessories such as cuvettes and adapter plates offering user‐specific application options
  • Accessories for product combinations with other Walz systems
  • Modifications on customer request

Modified System Package GFS-3000FL

The modified system package GFS‐3000FL contains the LEDArray/PAM‐Fluorometer 3057‐FL instead of the LED Light Source 3041‐L. All other components remain the same as in the basic system package GFS‐3000. In terms of price, GFS‐3000FL offers an interesting option to combine gas exchange and fluorescence measurements.

GFS-3000: Control-Unit 3200-C

The Control-Unit 3200-C contains the CO2 and H2O analyzer, as well as all components required for the CO2, H2O and flow control.

Gas Analyzer

The Control Unit 3200-C of the GFS-3000 contains a high accuracy non-dispersive 4-channel infrared gas analyzer for the determination of CO2 (0-3000 ppm) and H2O (0-75000 ppm) with 20 cm optical path length, 6 ml gold plated cells. The specially developed dualfrequency chopper technology allows simultaneous assessment of differential and absolute signal. The analyzer is optimized for a very stable and accurate differential signal. The differential zero is indicated, allowing clear information about the stability of the measurement. Due to the separation of analyzer and measuring head, the measuring head temperature does not influence the analyzer.

CO₂ Control

The integrated CO2 control ranges from 0 to 2000 ppm CO2. The CO2 supply can be filled from cartridges. One cartridge contains 8 g, and provides CO2 (340 ppm, standard flow rate) continuously for more than 48 hours. The actual CO2-reserve is indicated. Alternatively an external CO2-cylinder equipped with pressure reducer (6 bar) can be directly attached to the control unit.

Flow Control

Air flow through the cuvette is exactly adjusted between 300-1400 μmol s-1 by a membrane pump controlled by a high precision electronic mass flow-meter. The mechanical flow indicators directly show flow balance and cuvette tightness.

Humidity Control

The humidity control for drying and humidifying ranges from 0 to nearly 100% r.h. It consists of a drying and humidifying column and an automatic valve.

Power

The Control Unit 3200‐C can be operated using various power solutions such as as Li-ion eSMART Battery 98 Wh, AC Power Supply 3200-N or car batteries (12-24 V; 3200-C/BC) The new lightweight Li-ion eSMART Battery 98 Wh provides trouble free shipment combined with the advantages of a high performance battery. Four eSMART batteries can be charged simultaniously in the provided Li-ion eSMART Quad Charger.
 

Standard Measuring Head 3010-S

The design of the 3010-S offers maximum flexibility. The measuring area can be adapted with special plates; the cuvette can be modified for conifers, lichens, Arabidopsis plants or specific requirements.

General Features

The Standard Measuring Head 3010-S features a clamp-on cuvette with a large measuring area of up to 10 cm2 and a convenient closing mechanism. The symmetrical construction allows separate assessment of upper and lower leaf surface. 3010-S provides wide temperature-, light- and ventilation-control as well as a trigger button for the manual start of a user program.

Flexibility

The configuration of 3010-S can be changed easily requiring only a few accessories. The measuring area can easily be modified with area adapter plates. Additional flexibility is provided by various cuvettes e.g. for conifers or lichens/ mosses or a small chamber for the analysis of the complete above‐ground part of Arabidopsis plants. The circuitry for the temperature and light control, the ventilation system and the sensor electronics are located in a detachable electronics box and can be used for self‐built measuring chambers.

Temperature

The 3010-S has four temperature sensors: One Pt100 sensor per each cuvette half, a thermocouple for leaf temperature and a Pt100 for the external temperature.
The temperature control can be switched between three modes: Constant cuvette temperature, constant leaf temperature, or temperature variation parallel to ambient temperature regime with an adjustable offset. The last mode is especially well suited to assess plant responses in future temperature regimes. Due to the high performance elements of temperature control, the cuvette temperature can be decreased by up to 10 K. Maximum temperature reached is 50 °C.

Ventilation

Both sides of the 3010-S feature a high-speed impeller for effective ventilation of the air surrounding the leaf.

Ease of Interchangeability

Each measuring head contains its own calibration data, and can be freely exchanged between systems.

Light

The 3010-S has three sensors for photosynthetic active radiation (PAR): One cosine corrected Mini Quantum Sensor MQS-B/GFS, located on top of the measuring head, and two additional sensors located inside each cuvette half. Light can be provided with the LED Light Source 3041-L to the upper or lower side of the cuvette. The light control can be either set to a constant PAR level from 0 up to ca. 3000 μmol m-2 s-1 or to track the ambient PAR. Additional PAM measurement-options are supplied by the LED-Array/PAM-Fluorometer 3057-FL.

Data Storage

The trigger-button serves to store measuring points or starts a user program, while holding the measuring head.

LED-Array/PAM-Fluorometer 3057-FL

The long lasting experience in PAM fluorometry of Heinz Walz GmbH is embedded in the PAM fluorometers 3057-FL and 3050-F. The PAM fluorometry with the saturation pulse method provides detailed information on the light-energy usage of photosystem II and, thus, adds important information on primary photosynthetic reactions to the gas exchange data. The LED-Array/PAM-Fluorometer 3057-FL uses red measuring light to collect the fluorescence information with 6 detectors on up to 8 cm2 sample area.

Its LED array provides variable proportions of red and blue actinic light as well as strong saturating light pulses. Also, it features far-red LEDs to determine the Fo’ fluorescence. It connects with a simple snap-on mount to the Standard Measuring Head 3010-S, allowing optical control when positioning the leaf in the cuvette.

Accessory: Dark Leaf Clips 3010-DLC

For the determination of the maximum fluorescence signal (Fm), the leaf needs to be dark acclimated. The additional light-weight Dark Leaf Clips 3010-DLC, with positioning aid and sliding shutters, made from sun reflecting material, fit to the measuring area of the 3010-S.

System Package GFS‐3000FL

The system package GFS-3000FL contains the same components as the system package GFS-3000, except that it includes the LED-Array/PAM-Fluorometer 3057-FL instead of the LED Light Source 3041-L.

LED-Light Source 3041-L

The light source was designed for extremely homogenous illumination of the leaf area. The deviation from the mean value is at most ±7% over 90% of the area. It can illuminate up to 10 cm². The light control can either be set to a constant PAR level ranging from 0 up to 3000 µmol m-2 s-1 or to track the ambient PAR.

The warm white LEDs provide a peak of blue light at 457 nm (16% between 400 and 500 nm) and the rest between 500 and 700 nm peaking at 625 nm. The LED-Light Source 3041-L is only included in the system package GFS-3000; in the system package GFS-3000FL it is replaced by the LED-Array/PAM-Fluorometer 3057-FL.

Typical applications of the GFS-3000 are the assessment of CO2-asssimilation, H2O-conductance or CO2-respiration in dependence on CO2-concentration, intercellular CO2-concentration, light, temperature, humidity or time of day.

The following graphics show some examples measured with the GFS-3000.

USB interface adapter 3010-ISDA with USB-B port and M12 connector for PC control of GFS-3000 measuring heads
Accessory
Photosynthetic Light Reactions
Gas Exchange
3010-I/Box
Interface
Laboratory
optical oxygen sensor 3085-O2 with USB communication cable
Accessory
Gas Exchange
Photosynthetic Light Reactions
3085-O2
Oxygen Sensor
Field
Laboratory
Accessory
Gas Exchange
Photosynthetic Light Reactions
3000-C/OS
Outdoor-Set incl. sun protection shield
Field
Laboratory
Accessory
Battery Adapter 3200-C/BC
(for Control Unit 3200-C)
Accessory
eSMART-Battery 98 Wh
2 pcs eSMART Batteries
Accessory
eSMART Battery Charger
for simultaneous charging of four batteries
Adapter set with example leaves
Accessory
Gas Exchange
Photosynthetic Light Reactions
Leaf Area Adapters
for the Standard Measuring Head 3010-S
Field
Laboratory
WALZ specialty cuvette accessory components for GFS-3000 including base plate, sealing rings, acrylic cuvette, alignment pin and mounting bracket for lichen, moss, conifer and Arabidopsis measurements
Accessory
Photosynthetic Light Reactions
Gas Exchange
Various Cuvettes
for the Standard Measuring Head 3010-S
Field
Laboratory
Accessory
Photosynthetic Light Reactions
ST-1010
Compact Tripod
Water
Field
Laboratory
Fiberoptics PAM Fluorometer 3050-F mounted on Standard Measuring Head 3010-S with blue LED measuring light on leaf sample
Accessory
Photosynthetic Light Reactions
Gas Exchange
3050-F
Fiberoptics PAM-Fluorometer
Field
Laboratory
Dark Leaf Clip 3010-DLC on sunflower leaf attached to Standard Measuring Head 3010-S for Fm dark acclimation
Accessory
Photosynthetic Light Reactions
Gas Exchange
3010-DLC
Dark Leaf Clips
Field
Laboratory
adapter plate for coupling IMAGING-PAM M-Series MINI to Standard Measuring Head 3010-S with click mechanism
Accessory
Photosynthetic Light Reactions
Gas Exchange
IMAG-MIN/GFS
Adapter for GFS-3000
Water
Field
Laboratory
IMAGING-PAM M-Series MAXI coupled to Gas-Exchange Chamber 3010-GWK1 with camera on top and acrylic stand
Accessory
Photosynthetic Light Reactions
Gas Exchange
IMAG‐MAX/GWK1
Adapter
Laboratory
Gas-Exchange Cuvette 3010-DUAL mounted on a linear positioning system
Accessory
Photosynthetic Light Reactions
Gas Exchange
3010-DUAL
DUAL-PAM-100 and DUAL-KLAS-NIR Gas-Exchange Cuvette
Field
Laboratory
Adapter for attachment of the Fiberoptics to the GFS-3000
Accessory
Photosynthetic Light Reactions
Gas Exchange
3010-F-2010
Leaf Area Adapter
Field
Laboratory
1.5 m fiberoptic cable for MINI-PAM to GFS-3000 connection with Standard Measuring Head 3010-S adapter
Accessory
Photosynthetic Light Reactions
Gas Exchange
3010-F-MINI
Miniature Fiberoptics MINI-PAM
Field
Laboratory

Scientific Publications using Walz Devices

Source: Google Scholar.
Keywords: (Walz OR Waltz) Effeltrich.
Date: June 22, 2026.

Ʃ = 19642

Per Year

Source: Google Scholar.
Keywords: (Walz OR Waltz) Effeltrich.
Date: June 22, 2026.

Ʃ = 19642

Year

Selected Publications

Phenotypic plasticity in wild Camellia japonica across climatic zones: responses to variations in soil moisture and light intensity

Liu X, Li M, Zhang H, Jiao J, Guo X, Yang J, Liu C, Guo S, Sun Y, Guo W, Guo X

BMC Plant Biology 25: 1179

Go to publication

Morphological, physiological and biochemical changes in the grape variety "Hotan Red" caused by the occurrence of stress under the influence of saline-alkaline growing conditions

Song Y, Li R, Zhou L, Jiang L, Wang X

Horticulturae 11: 69

Go to publication

Continuous cropping duration alters green pepper root exudate composition and triggers rhizosphere feedback inhibition

Li Z, Lian D, Zhang S, Yao Y, Lin B, Hong J, Wu S, Li H

Agronomy 15: 2010

Go to publication

Synergistic effects of Fe nanocomplex and nitrophenolate-based biostimulant on growth and physiological performance of tomato seedlings

Tavallali V, Darvishzadeh MD

BMC Plant Biology 25: 905

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Synergistic effect of exogenous application of proline and boric acid on the growth, physiological aspects, and postharvest quality of radish under salt stress

Lima JVL, Pessoa LN, de Souza Neta M d FD, Phanord JWK, Oliveira PH d A, da Silva AGC, Fernandes A d N, Ferreira FN, Coêlho E d S, Barros AP, Ribeiro JE d S

ACS Omega 10: 31801-31811

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The novel disease Vicia unijuga caused by Colletotrichum tofieldiae in China: implications for host growth, photosynthesis, and nutritional quality

Wang T-T, Li H, Li Y-Z

Journal of Fungi 11: 567

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The effect of nitrogen dose and plant density interactions on potato yield and quality in dry cultivation: the role of photosynthesis and C-N metabolism

Meng H, Wang C, Li L, Bao X, Tian X, Xie J, Wang L, Luo Z

Agriculture 15: 2065

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Photosynthetic characteristics and leaf structure of yellow-leafed Lilium davidii var. unicolor

Wang Y, Wang Y, Zhang Z, Tian J, Tang D, Tang N

HortScience 60: 587-600

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Molybdonenum supply increases 15N-nitrate uptake by maize

Moreira LA, Tränkner M, Mariano E, Otto R

Frontiers in Plant Science 16: 1546132

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Chloride application enhances photosynthesis and facilitates nitrate translocation while driving chloride translocation into roots

Wei G, Zhang X, Franzisky BL, Geilfus C-M, Zörb C

Food and Energy Security 14: e70095

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Estimating the photorespiratory CO2 compensation point and CO2 release in the light using the Laisk method combined with photosynthetic theory

Moreno-Echeverry DL, Kirschbaum MUF, Barbour MM, Liáng L

Plant, Cell & Environment 49: 80-93

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Impacts of nitrogen fertilization and planting date on the physiology and yield of purple sweet potato at the extreme northern edge of cultivation

Zekker I, Kännaste A, Eremeev V, Kask K, Meinson P, Nassar H, Mäeorg E, Runno-Paurson E, Niinemets Ü

PLOS One 20: e0318531

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Multigenerational effects of elevated CO2 and N supply on leaf gas exchange traits in wheat plants.

Wang X, Rosenqvist E, Zong Y, Li X, Liu F

Journal of Agronomy and Crop Science 210: e12722

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Stomata-photosynthesis synergy mediates combined heat and salt stress tolerance in sugarcane mutant M4209

Negi P, Pandey M, Paladi RK, Majumdar A, Pandey SP, Barvkar VT, Devarumath R, Srivastava AK

Plant, Cell & Environment 48: 4668-4684

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Moderate shading can mitigate the negative impacts on the growth of tea plants and quality components caused by nitrogen reduction in northern tea plantations

Zhou F, Huang L, Zhou H, Huo X, Yuan C, Bao R, Wang H, Bai J, Gong C

Beverage Plant Research 5: e029

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The influence of heavy metals contained in sludge used as fertilizer for the Dahlia variabilis plant on photosynthetic traits

Bacula-Rus D, Both I, Bortes F, Lupitu A, Copolovici D, Copolovici L

WSEAS Transactions on Environment and Development 21: 417-425

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The trade-off between photosynthetic rate and thallus moisture-demand explains lichen habitat association with the temperate rainforest

Ormond A, Ellis CJ, Colesie C

Oecologia 207: 48

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Increased growth temperature alter arctic plant responses to heat wave and drought

Contreras-Serrano M, Lindsby N, Rinnan R, Duegaard ECN, Rosenqvist E, Chen S, Fu YH, Tang J

Global Change Biology 31: e70187

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Plant photosynthesis in basil (C3) and maize (C4) under different light conditions as basis of an AI-based model for PAM fluorescence/gas-exchange correlation

Pappert I, Klir S, Jokic L, Ühlein C, Quoc KT, Kaldenhof R

Frontiers in Plant Science 16: 1590884

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Methyl jasmonate as an attenuator of salt stress on the morphological aspects of red rice

da Silva AGC, Lima JVL, Oliveira PH de A, Leite I d O, do Nascimento IM, dos Santos JT, Coêlho E d S, Dias TJ, Barros AP, da Silveira LM, Ribeiro JE d S

Brazilian Journal of Agriculture and Environmental Engineering 29: e293063

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Canopy management effects on temperature and CO2 dynamics in Garnacha grapes under mediterranean conditions

Perera-Castro AV, Hernández-Montes

Physiology and Management of Sustainable Crops

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Early detection of water stress in kauri seedlings using multitemportal hyperspectral indices and inverted plant traits

Felix MJB, Main R, Watt MS, Arpanaei M-M, Patuawa T

Remote Sensing 17: 463

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Evaluation of the efficient propagation of Rhizophagus intradices and its inoculation effects on rice

Shi F, Wang X, He X, Xu T, Jiang M, Chang W, Song F

Applied and Environmental Microbiology 91: 7

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Multigenerational effects of elevated CO2 and N supply on leaf gas exchange traits in wheat plants.

Wang X, Rosenqvist E, Zong Y, Li X, Liu F

Journal of Agronomy and Crop Science 210: e12722

Go to publication

Seasonal dynamics and punctuated carbon sink reduction suggest photosynthetic capacity of boreal silver birch is reduced by the accumulation of hexose.

Tian M, Salmon Y, Lintunen A, Oren R, Hölttä T

New Phytologist 243: 894-908

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Exogenous melatonin alleviates sodium chloride stress and increases vegetative growth in Lonicera japonica seedlings via gene regulation.

Song C, Manzoor MA, Ren Y, Guo J, Zhang P, Zhang Y

BMC Plant Biology 24: 790

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Sex-specific strategies of resource utilization and determining mechanisms of Hippophae rhamnoides in response to community succession.

Fan B, Gao P, Tian T, Ding N, Wan Y, Zhou X

Journal of Plant Ecology 17: rtae053

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Uncoupling of stomatal conductance and photosynthesis at high temperature: mechanistic insights from online stable isotope techniques.

Diao H, Cernusak LA, Saurer M, Gessler A, Siegwolf RTW, Lehmann MM

New Phytologist 241: 2366-2378

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Dry inside: progressive unsaturation within leaves with increasing vapour pressure deficit affects estimation of key leaf gas exchange parameters.

Diao H, Cernusak LA, Saurer M, Gessler A, Siegwolf RTW, Lehmann MM

New Phytologist 244: 1275-1287

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Adaptive responses to elevated CO2 in fruit species with different phloem loading mechanisms.

Davoudi M, Kalantzis S, Petridis A

Frontiers in Plant Science 15: 1356272

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Transcriptomic and physiological analyses of Trichoderma citrinoviride HT-1 assisted phytoremediation of Cd contaminated water by Phragmites australis.

Chen DW, Wang YH, Li N, Huang YL, Mao YF, Liu XJ, Du YR, Sun K

BMC Microbiology 24: 93

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Glycine betaine enhances poplar cultivar (Populus deltoides x Populus euramericana) tolerance to confront NaCl stress.

Chen F, Movahedi A, Wei H, Zhuge Q, Sun W

Forests 15:1295

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Water exchange between the chlorenchyma and the hydrenchyma and its physiological role in leaves with crassulacean acid metabolism.

Cabrita PJV

Physiologia Plantarum 176: e14221

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Chloroplasts lacking class I glutaredoxins are functional but show a delayed recovery of protein cysteinyl redox state after oxidative challenge.

Bohle F, Rossi J, Tamanna SS, Jansohn H, Schlosser M, Reinhardt F, Brox A, Bethmann S, Kopriva S, Trentmann O, Jahns P, Deponte M, Schwarzländer M, Trost P, Zaffagnini M, Meyer AJ, Müller-Schüssele SJ

Redox Biology 69: 103015

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Flavonol synthase gene MsFLS13 regulates saline-alkali stress tolerance in alfalfa.

Zhang L, Sun Y, Ji J, Zhao W, Guo W, Li J, Bai Y, Wang D, Yan Z, Guo C

The Crop Journal 11: 1218-1229

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Interacting effects of CO2, temperature, and nitrogen supply on photosynthetic, root growth, and nitrogen allocation of strawberry at the fruiting stage.

Yu M, Sun P, Huang X, Zha Z, Wang X, Mantri N, Lou H, Jiang B, Shen Z, Sun Y, Lu H

Agronomy 13: 1353

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Effect of duration of LED lighting on growth, photosynthesis and respiration in lettuce.

Yudina L, Sukhova E, Gromova E, Mudrilov M, Zolin Y, Popova A, Nerush V, Pecherina A, Grishin AA, Dorokhove AA, Sukhove V

Plants 12: 442

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Diverse virulence attributes of Pantoea alfalfa sp. nov. CQ10 responsible for bacterial leaf blight in alfalfa revealed by genomic analysis.

Yao B, Huang R, Zhang Z, Shi S

International Journal of Molecular Sciences 24: 8138

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Species-specific stomatal ABA responses in juvenile ferns grown from spores.

Wuyun T, Niinemets Ü, Hõrak H

Peak photosynthesis at summer midday in Acacia trees growing in hyper-arid habitat.

Uni D, Sheffer E, Winters G, Carvalho Lima A, Fox H, Klein T

Trees 37: 255-267

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Frozen mountain pine needles: the endodermis discriminates between the ice-containing central tissue and the ice-free fully functional mesophyll.

Stegner M, Buchner O, Geßbauer M, Lindner J, Flörl A, Xiao N, Holzinger A, Gierlinger N, Neuner G

Physiologia Plantarum 175: e13865

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Drivers of intra-seasonal δ13C signal in tree-rings of Pinus sylvestris as indicated by compound-specific and laser ablation isotope analysis.

Rinne-Garmston KT, Tang Y, Sahlstedt E, Adamczyk B, Saurer M, Salmon Y, del Rosario Domínguez Carrasco M, Hölttä T, Lehmann MM, Mo L, Young GHF

Plant Cell & Environment 46: 2649-2666

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Development of modified Farquhar-von Caemmerer-Berry model describing photodamage of photosynthetic electron transport in C3 plants under different temperatures.

Ratnitsyna D, Yudina L, Sukhova E, Sukhov V

Plants 12: 3211

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The photosynthetic response of spectral chlorophyll fluorescence differs across species and light environments in a boreal forest ecosystem.

Rajewicz PA, Zhang C, Atherton J, van Wittenberghe S, Riikonen A, Magney T, Fernandez-Marin B, Garcia Plazaola JI, Porcar-Castell A

Agricultural and Forest Meteorology 334: 109434

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Two types of Europium-based photoconversion covers for greenhouse farming with different effects on plants.

Paskhin MO, Yanykin DV, Popov AV, Pobedonostsev RV, Kazantseva DV, Dorokhov AS, Izmailov AY, Vyatchinov AA, Orlovskaya EO, Shaidulin AT, Orlovskii YV, Vodeneev VA, Gudkov SV

Horticulturae 9: 846

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Contrasting stem water uptake and storage dynamics of water-saver and water-spender species during drought and recovery.

Martín-Gómez P, Rodríguez-Robles U, Ogée J, Wingate L, Sancho-Knapik D, Peguero-Pina J, dos Santos Silva JV, Gil-Pelegrin E, Pemán J, Ferrio JP

Tree Physiology 43: 1290-1306

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Exploring environmental and physiological drivers of the annual carbon budget of biocrusts from various climatic zones with a mechanistic data-driven model.

Ma Y, Weber B, Kratz A, Raggio J, Colesie C, Veste M, Bader MY, Porada P

Biogeosciences 20: 2553-2572

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The impact of increased CO2 and drought stress on the secondary metabolites of cauliflower (Brassica oleracea var. botrytis) and cabbage (Brassica oleracea var. capitata).

Lupitu A, Moisa C, Bortes F, Peteleu D, Dochia M, Chambre D, Ciutină V, Copolovici DM, Copolovici L

Plants 12: 3098

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Downregulated expression of TaDeg7 inhibits photosynthetic activity in bread wheat (Triticum aestivum L.).

Liu FF, Li GP, Li HW

Photosynthetica 61: 97-107

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Contrasting response of water use efficiency to soil moisture availability: from leaf to ecosystem in an arid oasis.

Han T, Feng Q, Ye T, Liu W, Ma J, Zhao C, Yang L, Zhang J, Li H

Ecological Indicators 147: 109964

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Effects of strontium on the morphological and photosynthetic physiological characteristics of Vicia faba seedlings.

Chen X, Zhong N, Luo Y, Ni Y, Liu Z, Wu G, Zheng T, Dang Y, Chen H, Li W

International Journal of Phytoremediation 25: 811-821

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Sub-artic mosses and lichens show idiosyncratic responses to combinations of winter heatwaves, freezing and nitrogen deposition.

Bokhorst S, Bjerke JW, Phoenix GK, Jaakola L, Mæhre HK, Tømmervik H

Physiologia Plantarum 175: e13882

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Physiological plasticity as a strategy to cope with harsh climatic conditions: ecophysiological meta-analysis of the cosmopolitan moss Ceratodon purpureus in the southern hemisphere.

Beltrán-Sanz N, Raggio J, Pintado A, Dal Grande F, Garcia Sancho L

Plants 12: 499

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On the hybrid origin of the C2 Salsola divaricata agg. (Amaranthaceae) from C3 and C4 parental lineages.

Tefarikis DT, Morales-Briones DF, Yang Y, Edwards G, Kadereit G

New Phytologist 234: 1876-1890

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Growth and nutrition of rice seedlings when phosphorus or silicon was applied to a soil heavily contaminated with both arsenic and cadmium.

Suriyagoda L, Tränkner M, Dittert K

Journal of Plant Nutrition 45: 1849-1865

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Growth regulation by air stream-based mechanical stimulation in tomato (Solanum lycopersicon L.) – Part II: phenotypic and physiological responses.

Sparke M-A, Pujner K, Müller J, Ruttensperger U, Heesch F, Wünsche J-N

Scientia Horticulturae

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Diurnal and seasonal gas exchange characteristics of Jatropha curcas leaves.

Ranjan S, Verma KK, Singh M, Pathre UV

Vegetos 35: 465-473

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The influence of elevated CO2 on volatile emissions, photosynthetic characteristics, and pigment content in Brassicaceae plant species and varieties.

Lupitu A, Moisa C, Gavrilaş S, Dochia M, Chambre D, Ciutină, Copolovici DM, Copolovici L

Plants 11: 973

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Exogenous application of melatonin improves salt tolerance of sugar beet (Beta vulgaris L.) seedlings.

Liu L, Wang Z, Gai Z, Wang Y, Wang B, Zhang P, Liu X, Chen J, Zhang S, Liu D, Zou C, Li C

Acta Physiologiae Plantarum 44: 57

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Transcriptome analysis revealed the molecular response mechanism of high-resistant and low-resistant alfalfa varieties to Verticillium wilt.

Li F, Chen X, Yang B, Guang Y, Wu D, Shi Z, Li Y

Frontiers in Plant Science 13: 931001

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Cloning and function analysis of a Saussurea involucrate LEA4 gene

Kong H, Xia W, Hou M, Ruan N, Li J, Zhu J

Frontiers in Plant Science 13: 957133

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Physiological drought resistance mechanisms in wild species vs. rootstocks of almond and plum.

Gerbi H, Paudel I, Zisovich A, Sapir G, Ben-Dor S, Klein T

Trees: 36: 669-683

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Targeted introduction of heritable point mutations into the plant mitochondrial genome.

Forner J, Kleinschmidt D, Meyer EH, Fischer A, Morbitzer R, Lahaye T, Schöttler MA, Bock R

Nature Plants: 8: 245-256

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ABA-inducible DEEPER ROOTING 1 improves adaptation of maize to water deficiency.

Feng X, Jia L, Cai Y, Guan H, Zheng D, Zhang W, Xiong H, Zhou H, Wen Y, Hu Y, Zhang X, Wang Q, Wu F, Xu J, Lu Y

Plant Biotechnology Journal 20: 2077-2088

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Antagonistic temperature variation affects the photosynthetic parameters and secondary metabolites of Ocimum basilicum L. and Salvia officinalis L.

Copolovici L, Copolovici DM, Moisa C, Lupitu A

Plants 11: 1806

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Non-invasive assessment of the physiological role of leaf aerenchyma in Hippeastrum Herb. and its relation to plant water status.

Cabrita P

Planta 256: 19

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Elevated CO2 improves the physiology but not the final yield in spring wheat genotypes subjected to heat and drought stress during anthesis.

Abdekhakim LOA, Mendanha T, Palma CFF, Vrobel O, Stefelova N, Zeljkovic SC, Tarkowski P, de Diego N, Wollenweber B, Rosenqvist E, Ottosen C-O

Frontiers in Plant Science 13: 824476

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Improving plant drought tolerance and growth under water limitations through combinatorial engineering of signalling networks.

Schulz P, Piepenburg K, Lintermann R, Herde M, Schöttler MA, Schmidt LK, Ruf S, Kudla J, Romeis T, Bock R

Plant Biotechnology Journal 19: 74-86

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Exogenous salicylic acid improves chilling tolerance in maize seedlings by improving plant growth and physiological characteristics.

Zhang Q, Li D, Wang Q, Song X, Wang Y, Yang X, Qin D, Xie T, Yang D

Agronomy 11: 1341

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Mg deficiency induces photo-oxidative stress primarily by limiting CO2 assimilation and not by limiting photosynthetic light utilization.

Jaghdani SJ, Jahns P. Tränkner M

Plant Science 302: 110751

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Minimizing VPD fluctuations maintains higher stomatal conductance and photosynthesis, resulting in improvement of plant growth in lettuce.

Inoue T, Sunaga M, Ito M, Yuchen Q, Matsushima Y, Sakoda K, Yamori W

Frontiers in Plant Science 12: 646144

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Reactions of three European oak species (Q. robur, Q. petraea and Q. ilex) to repetitive summer drought in sandy soil.

Früchtenicht E, Bock J, Feucht V, Brüggemann W

Trees, Forests and People 5: 100093

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OsPDCD5 negatively regulates plant architecture and grain yield in rice.

Dong S, Dong X, Han X, Zhang F, Zhu Y, Xin X, Wang Y, Hu Y, Yuan D, Wang J, Huang Z, Niu F, Yan P, Cao L, He H, Fu J, Xin Y, Tan Y, Mao B, Zhao B, Yang J, Yuan L

Proceedings of the National Academy of Sciences USA 118: e2018799118

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Nighttime transpiration represents a negligible part of water loss and does not increase the risk if water stress in grapevine.

Dayer S, Herrera JC, Dai Z, Burlett R, Lamarque LJ, Delzon S, Bortolami G, Cochard H, Gambetta GA

Plant, Cell & Environment 44: 387–398

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The effect of antagonist abiotic stress on bioactive compounds from Basil (Ocimum basilicum).

Copolovici L, Lupitu A, Moisa C, Taschina M, Copolovici DM

Applied Sciences 11: 9282

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Driving factors of community-level plant functional traits and species distributions in the desert-wetland ecosystem of the Shule river basin, China.

Chen G, Yue D, Zhou Y, Wang D, Wang H, Hui C, Guo J

Land Degradation & Development 32: 323–337

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Photosynthesis and crop productivity are enhanced by glucose-functionalised carbon dots.

Swift TA, Fagan D, Benito-Alifonso D, Hill SA, Yallop ML, Oliver TAA, Lawson T, Galan MC, Whitney HM

New Phytologist 229: 783-790

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Rapid starch degradation in the wood of olive trees under heat and drought is permitted by three stress-specific beta amylases.

Tsamir-Rimon M, Ben-Dor S, Feldmesser E, Oppenhimer-Shaanan Y, David-Schwartz R, Samach A, Klein T

New Phytologist 229: 1398-1414

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Contributions of cryptochromes and phototropins to stomatal opening through the day.

Wang F, Robson TM, Casal JJ, Shapiguzov A, Aphalo PJ

Functional Plant Biology 47: 226-238

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Using hyperspectral plant traits linked to photosynthetic efficiency to assess N and P partition.

Watt MS, Buddenbaum H, Leonardo EMC, Estarija HJC, Bown HE, Gomez-Gallego M, Hartley R, Massam P, Wright L, Zarco-Tejada PJ

ISPRS Journal of Photogrammetry and Remote Sensing 169: 406-420

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Effects of potassium nutrition and water availability on iron toxicity of rice seedlings.

Suriyagoda LDB, Tränkner M, Dittert K

Journal of Plant Nutrition 43: 2350-2367

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Leaf hydraulic conductance is linked to leaf symmetry in bifacial, amphistomatic leaves of sunflower.

Richardson F, Jordan GJ, Brodribb TJ

Journal of Experimental Botany 71: 2808-2816

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Over-accumulation of abscisic acid in transgenic tomato plants increases the risk of hydraulic failure.

Lamarque LJ, Delzon S, Toups H, Gravel A-I, Corso D, Badel E, Burlett R, Charrier G, Cochard H, Jansen S, King A, Torres-Ruiz JM, Pouzoulet J, Cramer GR, Thompson AJ, Gambetta

Plant, Cell & Environment 43: 548-562

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Expected impacts of mixing European beech with silver fir on regional air quality and radiation balance.

Bonn B, Kreuzwieser J, Magh R-K, Rennenberg H, Schindler D, Sperlich D, Trautmann R, Yousefpour R, Grote R

Climate 8: 105

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Chloride is beneficial for growth of the xerophyte Pugionium cornutum by enhancing osmotic adjustment capacity under salt and drought stresses.

Cui Y-N, Li X-T, Yuan J-Z, Wang F-Z, Guo H, Xia Z-R, Wang S-M, Ma Q

Journal of Experimental Botany 71: 4215-4231

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Highly resolved systems biology to dissect the etioplast-to-chloroplast transition in tobacco leaves.

Armarego-Marriott T, Kowalewska Ł, Burgos A, Fischer A, Thiele W, Erban A, Strand D, Kahlau S, Hertle A, Kopka J, Walther D, Reich Z, Schöttler MA, Bock R

Plant Physiology 180: 654-681

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Effect of Vapor Pressure Deficit on Gas Exchange in Wild-Type and Abscisic Acid–Insensitive Plants.

Cernusak LA, Goldsmith GR, Arend M, Siegwolf RTW

Plant Physiology 181(4): 1573–1586

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Minimum magnesium concentrations for photosynthetic efficiency in wheat and sunflower seedlings.

Tränkner M, Jaghdani SJ

Plant Physiology and Biochemistry 144: 234-243

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A novel approach for real-time monitoring of leaf wounding responses demonstrates unprecedently fast and high emissions of volatiles from cut leaves.

Rasulov B, Talts E, Niinemets Ü

Plant Science 283: 256-265

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Role of stomatal conductance in modifying the dose response of stress-volatile emissions in methyl jasmonate treated leaves of cucumber (Cucumis sativa).

Jiang Y, Ye J, Rasulov B, Niinemets Ü

International Journal of Molecular Sciences 21: 1018

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C4-like photosynthesis and the effects of leaf senescence on C4-like physiology in Sesuvium sesuvioides (Aizoaceae).

Bohley K, Schröder T, Kesselmeier J, Ludwig M, Kadereit G

Journal of Experimental Botany 70: 1553-1565

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Effect of vapor pressure deficit on gas exchange in wild-type and abscisic acid–insensitive plants.

Cernusak LA, Goldsmith GR, Arend M, Siegwolf RTW

Plant Physiology 181: 1573–1586

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Ecophysiological properties of three biological soil crust types and their photoautotrophs from the succulent Karoo, South Africa.

Tamm A, Caesar J, Kunz N, Colesie C, Reichenberger H, Weber B

Plant and Soil 429: 127-146

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Ecophysiological characterization of early successional biological soil crusts in heavily human-impacted areas.

Szyja M, Büdel B, Colesie C

Biogeosciences 15: 1919-1931

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Estimating net photosynthesis of biological soil crusts in the Atacama using hyperspectral remote sensing.

Lehnert LW, Jung P, Obermeier WA, Büdel B

Remote Sensing 10: 891

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Leaf, canopy and agronomic water-use efficiency of field-grown sugar beet in response to potassium fertization.

Jákli B, Hauer-Jákli M, Böttcher F, Meyer zur Müdehorst J, Senbayram M, Dittert K

Journal of Agronomy and Crop Science 204: 99-110

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The accumulation of miRNAs differentially modulated by drought stress is affected by grafting in grapevine.

Pagliarani C, Vitali M, Ferrero M, Vitulo N, Incarbone M, Lovisolo C, Valle G, Schubert A

Plant Physiology 173: 2180-2195

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A spatially hierarchical integration of close-range remote sensing, leaf structure and physiology assists in diagnosing spatiotemporal dimensions of field-scale ecosystem photosynthetic productivity.

Xue W, Ko J, Werner C, Tenhunen J

Agricultural and Forest Meteorology 247: 503-519

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Extremely thick cell walls and low mesophyll conductance: welcome to the world of ancient living!

Veromann-Jürgenson L-L, Tosens T, Laanisto L, Niinemets Ü

Journal of Experimental Botany 68: 1639-1653

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Connecting active to passive fluorescence with photosynthesis: a method for evaluating remote sensing measurements of Chl fluorescence.

Magney TS, Frankenberg C, Fisher JB, Sun Y, North GB, Davis TS, Kornfeld A, Siebke K

New Phytologist 215: 1594-1608

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Impact of leaf traits on temporal dynamics of transpired oxygen isotope signatures and its impact on atmospheric vapor.

Dubbert M, Kübert A, Werner C

Frontiers in Plant Science 8: 5

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Investigating the mechanisms of glyphosate resistance in goosegrass (Eleusine indica (L.) Gaertn.) by RNA sequencing technology.

Chen J, Huang H, Wei S, Huang Z, Wang X, Zhang C

The Plant Journal 89: 407-415

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Identification of differentially regulated maize proteins conditioning sugarcane mosaic virus systemic infection.

Chen H, Cao Y, Li Y, Xia Z, Xie J, Carr JP, Wu B, Fan Z, Zhou T

New Phytologist 215: 1156-1172

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Persistent reduction of segment growth and photosynthesis in a widespread and important sub-Arctic moss species after cessation of three years of experimental winter warming.

Bjerke JW, Bokhorst S, Callaghan TV, Phoenix GK

Functional Ecology 31: 127-134

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Low levels of strigolactones in roots as a component of the systemic signal of drought stress in tomato.

Visentin I, Vitali M, Ferrero M, Zhang Y, Ruyter-Spira C, Novák O, Strnad M, Lovisolo C, Schubert A, Cardinale F

New Phytologist 212: 954-963

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Novel functional microRNAs from virus-free and infected Vitis vinifera plants under water stress.

Pantaleo V, Vitali M, Boccacci P, Miozzi L, Cuozzo D, Chitarra W, Mannini F, Lovisolo C, Gambino G

Scientific Reports 6: 20167

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High C3 photosynthetic capacity and high intrinsic water use efficiency underlies the high productivity of the bioenergy grass Arundo donax.

Webster RJ, Driever SM, Kromdijk J, McGrath J, Leakey ADB, Siebke K, Demetriades-Shah T, Bonnage S, Peloe T, Lawson T, Long SP

Scientific Reports 6: 20694

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Enhanced stomatal conductance by a spontaneous Arabidopsis tretraploid, Me-0, results from increased stomatal size and greater stomatal aperture.

Monda K, Araki H, Kuhara S, Ishigaki G, Akashi R, Negi J, Kojima M, Sakakibara H, Takahashi S, Hashimoto-Sugimoto M, Goto N, Iba K

Plant Physiology 170: 1435-1444

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Effects of heat and drought stress on post-illumination bursts of volatile organic compounds in isoprene-emitting and non-emitting poplar.

Jud W, Vanzo E, Li Z, Ghirardo A, Zimmer I, Sharkey TD, Hansel A, Schnitzler J-P

Plant, Cell & Environment 39: 1204-1215

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Salicylic acid mitigates physiological and proteomic changes induced by the SPCP1 strain of Potato virus X in tomato plants.

Cueto-Ginzo AI, Serrano L, Bostock RM, Ferrio JP, Rodríguez R, Arcal L, Achon MÁ, Falcioni T, Luzuriaga WP, Medina V

Physiological and Molecular Plant Pathology 93: 1-11

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Acclimation to heat and drought – lessons to learn from the date palm (Phoenix dactylifera).

Arab L, Kreuzwieser J, Kruse J, Zimmer I, Ache P, Alfarraj S, Al-Rasheid KAS, Schnitzler J-P, Hedrich R, Rennenberg H

Environmental and Experimental Botany 125: 20-30

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Photosynthetic light responses may explain vertical distribution of Hymenophyllaceae species in a temperate rainforest of Southern Chile.

Parra MJ, Acuña KI, Sierra-Almeida A, Sanfuentes C, Saldaña A, Corcuera LJ, Bravo LA

PLoS ONE 10: e0145475

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Chloroplast protrusions in leaves of Ranunculus glacialis L. respond significantly to different ambient conditions, but are not related to temperature stress.

Moser T, Holzinger A, Buchner O

Plant, Cell & Environment 38: 1347-1356

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Photosynthetic, hydraulic and biomass properties in closely related C3 and C4 species.

Kocacinar F

Physiology Plantarum 153: 454-466

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Growth, yield and fruit quality of grapevines under organic and biodynamic management.

Döring J, Frisch M, Tittmann S, Stoll M, Kauer R

PLoS ONE 10: e0138445

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Polyphenol oxidase-mediated protection against oxidative stress is not associated with enhanced photosynthetic efficiency.

Boeckx T, Webster R, Winters AL, Webb KJ, Gay A, Kingston-Smith AH

Annals of Botany 116: 529-540

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RNAi-mediated downregulation of poplar plasma membrane intrinsic proteins (PIPs) changes plasma membrane proteome composition and affects leaf physiology.

Bi Z, Merl-Pham J, Uehlein N, Zimmer I, Mühlhans S, Aichler M, Walch AK, Kaldenhof R, Palme K, Schnitzler J-P, Block K

Journal of Proteomics 128: 321-332

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Drought response of mesophyll conductance in forest understory species – impacts on water‐use efficiency and interactions with leaf water movement

Hommel R, Siegwolf R, Saurer M, Farquhar GD, Kayler Z, Ferrio JP and Gessler A

Physiologia Plantarum 152: 98-114

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Habitat stress initiates changes in composition, CO2 gas exchange and C-allocation as life traits in biological soil crusts

Colesie C, Green TGA, Haferkamp I, Büdel B

ISME Journal 8: 2104-2115

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Rootstock control of scion response to water stress in grapevine.

Tramontini S, Vitali M, Centioni L, Schubert A, Lovisolo C

Environmental and Experimental Botany 93: 20-26

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Flavescence dorée phytoplasma deregulates stomatal control of photosynthesis in Vitis vinifera.

Vitali M, Chitarra W, Galetto L, Bosco D, Marzachì C, Gullino ML, Spanna F, Lovisolo C

Annals of Applied Biology 162: 335-346

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SlERF36, an EAR-motif-containing ERF gene from tomato, alters stomatal density and modulates photosynthesis and growth.

Upadhyay R, Soni D, Singh R, Dwivedi UN, Pathre UV, Nath P, Sane AP

Journal of Experimental Botany 64: 3237–3247

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Importance of leaf anatomy in determining mesophyll diffusion conductance to CO2 across species: quantitative limitations and scaling up by models.

Tomás M, Flexas J, Copolovici L, Galmés J, Hallik L, Medrano H, Ribas-Carbó M, Tosens T, Vislap V, Niinemets Ü

Journal of Experimental Botany 64: 2269-2281

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Enhancement of leaf photosynthetic capacity through increased stomatal density in Arabidopsis.

Tanaka Y, Sugano SS, Shimada T, Hara-Nishimura I

New Phytologist 198: 757–764

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Functional characteristics of a fruticose type of lichen, Stereocaulon foliolosum Nyl. in response to light and water stress.

Singh R, Ranjan S, Nayaka S, Pathre UV, Shirke, PA

Acta Physiologiae Plantarum 35: 1605-1615

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Adaptation of maize source leaf metabolism to stress related disturbances in carbon, nitrogen and phosphorus balance.

Schlüter U, Colmsee C, Scholz U, Bräutigam A, Weber AP, Zellerhoff N, Bucher M, Fahnenstich H, Sonnewald U

BMC Genomics 14: 442

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Antioxidant and photoprotective responses to elevated CO2 and heat stress during holm oak regeneration by resprouting, evaluated with NIRS (near-infrared reflectance spectroscopy).

Pintó-Marijuan M, Joffre R, Casals I, De Agazio M, Zacchini M, García-Plazaola JI, Esteban R, Aranda X, Guàrdia M, Fleck I

Plant Biology 15: 5-17

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Isoprene function in two contrasting poplars under salt and sunflecks.

Behnke K, Ghirardo A, Janz D, Kanawati B, Esperschütz J, Zimmer I, Schmitt-Koppli, P, Niinemets Ü, Polle A, Schnitzler JP, Rosenkranz M

Tree Physiology 33: 562-78

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The diversification of terpene emissions in Mediterranean oaks: lessons from a study of Quercus suber, Quercus canariensis and its hybrid Quercus afares.

Welter S, Bracho-Nuñez A, Mir C, Zimmer I, Kesselmeier J, Lumaret, R, Schnitzler J-P, Staudt M

Tree Physiology 32: 1082-1091

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Photosynthetic characteristics and the response of stomata to environmental determinants and ABA in Selaginella bryopteris, a resurrection spike moss species.

Soni DK, Ranjan S, Singh R, Khare PB, Pathre UV, Shirke PA

Plant Science 191: 43-52

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Photosynthetic performance of Jatropha curcas fruits.

Ranjan S, Singh R, Soni DK, Pathre UV, Shirke PA

Plant Physiology and Biochemistry 52: 66-76

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Influence of light and salt on the growth of alien invasive tropical weed Ageratum conyzoides.

Sun P, Mantri N, Möller M, Shen J, Shen Z, Jiang B,Chen C, Miao Q, Lu H

Australian Journal of Crop Science 6: 739-748

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Efficient acclimation of the chloroplast antioxidant defence of Arabidopsis thaliana leaves in response to a 10-or 100-fold light increment and the possible involvement of retrograde signals.

Oelze M-L, Vogel MO, Alsharafa, K, Kahmann, U, Viehhauser, A, Maurino, VG, Dietz K-J

Journal of Experimental Botany 63: 1297-1313

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Increased leaf photosynthesis caused by elevated stomatal conductance in a rice mutant deficient in SLAC1, a guard cell anion channel protein.

Kusumi K, Hirotsuka S, Kumamaru T, Iba K

Journal of Experimental Botany 63: 5635-5644

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Salt stress induces the formation of a novel type of “pressure wood” in two Populus species.

Janz D, Lautner S, Wildhagen H, Behnke K, Schnitzler J-P, Rennenberg H, Fromm J, Polle A

New Phytologist 194: 129-141

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The photoprotective protein PsbS exerts control over CO2 assimilation rate in fluctuating light in rice.

Hubbart S, Ajigboye OO, Horton P, Murchie EH

The Plant Journal 71: 402-412

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Effects of glyphosate on photosynthesis, chlorophyll fluorescence and physicochemical properties of cogongrass (Imperata cylindrical L.).

Huang J, Silva EN, Shen Z, Jiang B, Lu H

Plants Omics Journal 5: 177-183

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Species-specific differences in temporal and spatial variation in δ13C of plant carbon pools and dark-respired CO2 under changing environmental conditions.

Dubbert M, Rascher KG, Werner C

Photosynthesis Research 113: 297-309

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Photosynthetic responses of a C3 and three C4 species of the genus Panicum (s.l.) with different metabolic subtypes to drought stress.

Alfonso SU, Brüggemann W

Photosynthesis Research 112: 175-191

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LCAA, a Novel Factor Required for Magnesium Protoporphyrin Monomethylester Cyclase Accumulation and Feedback Control of Aminolevulinic Acid Biosynthesis in Tobacco.

Albus CA, Salinas A, Czarnecki O, Kahlau S, Rothbart M, Thiele W, Lein W, Bock R, Grimm B, Schöttler MA

Plant Physiology 160: 1923-1939

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Responses of gas exchange, cellular membrane integrity, and antioxidant enzymes activities of salinity-stressed winter wheat to ozone pollution.

Zheng YH, Li YG, Xia WR, Xu H, Su BY, Jiang GM, Ning TY

Photosynthetica 49: 389-396

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Cyclic electron flow around photosystem I via chloroplast NAD(P)H dehydrogenase (NDH) complex performs a significant physiological role during photosynthesis and plant growth at low temperature in rice.

Yamori W, Sakata N, Suzuki Y, Shikanai T, Makino A

The Plant Journal 68: 966-976

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Whole lichen thalli survive exposure to space conditions: results of Lithopanspermia experiment with Aspicilia fruticulosa.

Raggio J, Pintado A, Ascaso C, De La Torre R, De Los Ríos A, Wierzchos J, Horneck G, Sancho LG

Astrobiology 11: 281-292

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Identification of virulence genes in the corn pathogen Colletotrichum graminicola by Agrobacterium tumefaciens-mediated transformation.

Münch S, Ludwig N, Floss DS, Sugui JA, Koszucka AM, Voll LM, Sonnewald U, Deising HB

Molecular Plant Pathology 12: 43-55

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Environmental regulation of stomatal response in the Arabidopsis Cvi-0 ecotype.

Monda K, Negi J, Iio A, Kusumi K, Kojima M, Hashimoto M, Sakakibara H, Iba K

Planta 234: 555–563

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Barley leaf transcriptome and metabolite analysis reveals new aspects of compatibility and Piriformospora indica-mediated systemic induced resistance to powdery mildew.

Molitor A, Zajic D, Voll LM, Pons-Kühnemann J, Samans B, Kogel K-H, Waller F

Molecular Plant-Microbe Interactions 24: 1427-1439

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Sphagnum growth and ecophysiology during mire succession.

Laine, AM, Juurola E, Hájek T, Tuittila E-S

Oecologia 167: 1115-1125

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AtHsp70-15-deficient Arabidopsis plants are characterized by reduced growth, a constitutive cytosolic protein response and enhanced resistance to TuMV.

Jungkunz I, Link K, Vogel F, Voll LM, Sonnewald S, Sonnewald U

The Plant Journal 66: 983–995

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Photosynthetic properties of Quercus x hispanica Lam. and Q. suber L. under harsh Central European winter conditions.

Holland V, Brüggemann W

Photosynthetica 49: 459-465

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Contrasting sensitivity to extreme winter warming events of dominant sub-Arctic heathland bryophyte and lichen species.

Bjerke JW, Bokhorst S, Zielke M, Callaghan TV, Bowles FW, Phoenix GK

Journal of Ecology 99: 1481-1488

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Leaf rust induced volatile organic compounds signalling in willow during the infection.

Toome M, Randjärv P, Copolovici L, Niinemets Ü, Heinsoo K, Luik A, Noe SM

Planta 232: 235–243

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Photosynthetic response of pepper plants to wilt induced by Verticillium dahliae and soil water deficit.

Pascual I, Azcona I, Morales F, Aguirreolea J, Sanchez-Diaz M

Journal of Plant Physiology 167: 701-708

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Modeling the temporal dynamics of monoterpene emission by isotopic labeling in Quercus ilex leaves.

Noe SM, Niinemets Ü, Schnitzler, J-P

Atmospheric Environment 44: 392-399

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High within-canopy variation in isoprene emission potentials in temperate trees: Implications for predicting canopy-scale isoprene fluxes.

Niinemets Ü, Copolovici L, Hüve K

Journal of Geophysical Research: Biogeosciences 115: G04029

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Ustilago maydis infection strongly alters organic nitrogen allocation in maize and stimulates productivity of systemic source leaves.

Horst RJ, Doehlemann G, Wahl R, Hofmann J, Schmiedl A, Kahmann R, Kaemper J, Sonnewald U, Voll LM

Plant Physiology 152: 293-308

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Determination of de novo and pool emissions of terpenes from four common boreal/alpine trees by 13CO2 labelling and PTR-MS analysis.

Ghirardo A, Koch K, Taipale R, Zimmer I, Schnitzler J-P, Rinne J

Plant, Cell & Environment 33: 781-792

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Impacts of extreme winter warming events on plant physiology in a sub-Arctic heath community.

Bokhorst S, Bjerke JW, Davey MP, Taulavuori K, Taulavuori E, Laine K, Callaghan TV, Phoenix GK

Physiologia Plantarum 140: 128-140

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Relationship between photosynthetic capacity, nitrogen assimilation and nodule metabolism in alfalfa (Medicago sativa) grown with sewage sludge.

Antolín MC, Fiasconaro ML, Sánchez-Díaz M

Journal of Hazardous Materials 182: 210-216

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Effects of shade treatments on the photosynthetic capacity, chlorophyll fluorescence, and chlorophyll content of Tetrastigma hemsleyanum Diels et Gilg.

Dai Y-J, Shen Z-G, Liu Y, Wang L-L, Hannaway D, Lu H-F

Environmental and Experimental Botany 65: 177-182

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Growth, yield and physiology of Verticillium-inoculated pepper plants treated with ATAD and composted sewage sludge.

Pascual I, Azcona I, Morales F, Aguirreolea J, Sánchez-Díaz M

Plant and Soil 319: 291-306

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Leaf-level plasticity of Salix gordejevii in fixed dunes compared with lowlands in Hunshandake Sandland, North China.

Su H, Li Y-G, Lan Z-J, Xu H, Liu W, Wang B-X, Biswis DK, Jiang G-M

Journal of Plant Research 122: 611-622

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Phragmites australis and Typha orientalis in removal of pollutant in Taihu Lake, China.

Tian Z-Q, Zheng B-H, Liu M-Z, Zhang Z-Y

Journal of Environmental Sciences 21: 440-446

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Imaging chlorophyll fluorescence with an airborne narrow-band multispectral camera for vegetation stress detection.

Zarco-Tejada PJ, Berni JAJ, Suárez L, Sepulcre-Cantó G, Morales F, Miller JR

Remote Sensing of Environment 113: 1262-1275

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Differential Response of Gray Poplar Leaves and Roots Underpins Stress Adaptation during Hypoxia.

Kreuzwieser J, Hauberg J, Howell KA, Carroll A, Rennenberg H, Millar AH, Whela J

Plant Physiology 149: 461-473

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Genotypic differences in leaf biochemical, physiological and growth responses to ozone in 20 winter wheat cultivars released over the past 60 years.

Biswas DK, Xu H, Li YG, Sun JZ, Wang XZ, Han XG, Jiang GM

Global Change Biology 14: 46-59

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Ice encapsulation protects rather than disturbs the freezing lichen.

Bjerke JW

Plant Biology 11: 227-235

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Impacts of extreme winter warming in the sub-Arctic: growing season responses of dwarf shrub heathland.

Bokhorst S, Bjerke JW, Bowles FW, Melillo J, Callaghan TV, Phoenix GK

Global Change Biology 14: 2603-2612

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Effect of Thrips tabaci on anatomical features, photosynthetic characteristics and chlorophyll fluorescence of Hypericum sampsonii leaves.

Dai Y-J, Shao M-M, Hannaway D, Wang L-L, Liang J-P, Hua L, Lu H-F

Crop Science 28: 327-332.

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Transpiration, CO2 assimilation, WUE, and stomatal aperture in leaves of Viscum album (L.): Effect of abscisic acid (ABA) in the xylem sap of its host (Populus x euamericana).

Escher P, Peuke AD, Bannister P, Fink S, Hartung W, Jiang F, Rennenberg H

Plant Physiology and Biochemistry 46: 64-70.

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Infection of maize leaves with Ustilago maydis prevents establishment of C4 photosynthesis.

Horst RJ, Engelsdorf T, Sonnewald U, Voll LM

Journal of Plant Physiology 165: 19-28

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Cell wall-bound invertase limits sucrose export and is involved in symptom development and inhibition of photosynthesis during compatible interaction between tomato and Xanthomonas campestris pv. vesicatoria.

Kocal N, Sonnewald U, Sonnewald S

Plant Physiology 148: 1523-1536

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Loss of the vacuolar cation channel, AtTPC1, does not impair Ca2+ signals induced by abiotic and biotic stresses.

Ranf S, Wünnenberg P, Lee J, Becker D, Dunkel M, Hedrich R, Scheel D, Dietrich P

The Plant Journal 53: 287-299

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Early pathogen detection under different water status and the assessment of spray application in vineyards through the use of thermal imagery.

Stoll M, Schultz HR, Baecker G, Berkelmann-Loehnertz B

Precision Agriculture 9: 407-417

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Transgenic, non-isoprene emitting poplars don’t like it hot.

Behnke K, Ehlting E, Teuber M, Baerfeind M, Louis S, Hänsch R, Polle A, Bohlmann J, Schnitzler J-P

The Plant Journal 51: 485-499

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Evaporative enrichment and time lags between δ18O of leaf water and organic pools in a pine stand.

Barnard RL, Salmon Y, Kodama N, Sorgel K, Holst J, Rennenberg H, Gessler A, Buchmann N

Plant, Cell & Environment 30: 539-550

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Photosynthesis and yield responses of ozone-polluted winter wheat to drought.

Xu H, Biswas DK, Li W-D, Chen S-B, Zhang L, Jiang G-M, Li Y-G

Photosynthetica 45: 582-588

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GFS-3000

Design
Aluminum housing featuring an integrated PC module, large graphical color-display well readable in sunlight with touch screen, 4-channel CO2/H2O gas analyzer, flow control, CO2 control (supplied via small cartridges or cylinders) and H2O control (for drying and humidifying). Pneumatic connectors for air inlet and measuring head. Sockets for cable connections: Cuvette: Standard Measuring Head 3010-S, DUAL-PAM Gas-Exchange Cuvette 3010-DUAL, or Gas-Exchange Chamber 3010-GWK1; Aux in: two Auxiliaries; 3 Battery Slots: Li-Ion eSMART Batteries (each 14.4V/6.8Ah), Mains Power Supply Unit 3200-N, or 3200/BC adapter for 12 V or 24 V Battery; Comp (RS 485): additional component or 3010/I-Box for external PC control; 2 USB sockets (USB 2.0) to internal PC: USB storage device or other USB device; Battery DC/in: two LiFePO4 Batteries 3035-A, AC Power Supply Unit 3020-N, or external DC (12-24 V)

CO2/H2O Gas Analyzer

Design
4-channel CO2/H2O absolute NDIR gas analyzer, separate cuvettes for CO2 and H2O
CO2 measurement

Simultaneous absolute and differential measurements, absolute range: 0 to 5000 ppm, cuvette length 20 cm, cuvette volume of one cell 6 cm3, gas-filled detector

H2O measurement
Simultaneous absolute and differential measurements, absolute range: 0 to 75000 ppm, cuvette length 20 cm, cuvette volume of one cell 6 cm3, pyroelectric detector (solid state)
Max. noise in absolute mode
<0.2 ppm CO2 and <30 ppm H2O
Resolution
0.01 ppm CO2, 1 ppm H2O
Linearization

Max. error between 0 and 600 ppm: 12 ppm, between 600 and 3000 ppm: 2% of measured value
Typ. less than 0.5 ppm
Max. error between 0 and 15000 ppm: 330 ppm, above 15000 ppm: 2% of measured value
Typ. less than 150 ppm
Correction
Signal is corrected for temperature, pressure and H2O-effect on CO2 signal
Barometric air pressure measurement
Range 60 to 110 kPa, accuracy ±0.1%
Other Specifications of the Control Unit 3200-C
Pneumatic time delay
Delay between Analyzer and Standard Measuring Head 3010-S is 2.5 s at standard flow rate
Mass flow measurement
: Thermal mass flow meter, range 0 to 1500 μmol s-1, accuracy ±1%
Integrated user interface
Panel PC MS-98FG/1.83 GHz with graphical color-display 640 x 480 dots (effective display area 13 cm x 10 cm) with backlight (well readable in direct sunlight), touch screen and 2 USB 2.0 sockets, and audio speaker
Data storage capacity
Solid State Drive 32 GB
CO2 control
Integrated CO2-control range 0 to 2000 ppm, CO2 supply via CO2 cartridges (8 g CO2, provide more than 48 h continuous supply at 350 ppm, reserve is indicated) or via CO2 cylinder with pressure reducer
H2O control
Integrated H2O control via step motor for humidifying and drying, range 0 to nearly 100% r.h. (non-condensing)
Measured and calculated parameters
CO2 absolute, CO2 difference, H2O absolute, H2O difference, flow, ambient pressure, 2x auxiliaries, cuvette temperature (upper and lower half), leaf temperature, ambient temperature, PAR in upper part of the cuvette, PAR in lower part of the cuvette, external PAR, impeller frequency, evaporation, VPD, H2O conductance, net photosyn[-]thesis, intercellular CO2 concentration. In combination with LED-Array/PAM Fluorometer 3057‑FL (GFS-3000FL): F0, FM, FM', F, F0', FV/FM (max. PS II quantum yield), DF/FM' = Y(II) (effective PS II quantum yield), Y(NPQ), qP, qL, qN, NPQ, ETR.
Recalculation of stored data with other parameters is possible.
PC interface
3010/I-Box
Auxiliaries
: Two analog inputs, range 0 to 4095 mV, user programmable
Power supply
Two field replaceable rechargeable Li-ion Batteries 14.4 V/6.8 Ah (000160101434, four batteries supplied), or AC Power Supply 3200‑N for laboratory operation. The Control Unit 3200-C may also be operated with a 12 or 24 V battery (only with optional battery cable 3200-C/BC provided by us).
Operating time
3 to 4.5 typ. with two Li-ion eSMART batteries, 6 to 9 hours typ. with four Li-ion eSMART batteries.
Operating temperature
-5 to 45 °C
Dimensions
43 cm x 29.5 cm x 26 cm (L x W x H)
Weight
12.3 kg (incl. two Li-ion eSMART batteries)
Design
DC power supply unit for laboratory use
Output Voltage
16 V DC
Output power
135 W (depends on version, see label)
Mains power supply
100 to 240 V AC, 50/60 Hz
Operating temperature
0 to 60°C (depends on version, see label)
Dimensions
20 cm x 8 cm x 5.5 cm (L x W x H) with connector inserting into the battery slot 15.3 cm x 7.9 cm x 2.3 cm (L x W x H), cable length 90 cm.
Weight
1.07 kg
Design
Universal measuring head featuring small-sized cuvette volume (40 ml), wide range temperature control and effective ventilation. Electronics box detachable for custom-built cuvettes, upper and lower cuvette halves pneumatically separated with one impeller each for upper and lower part, interchangeable adapter plates for different leaf areas, cuvette expandable to different volumes and shapes (small cylinder or cuboid) for measuring mosses, lichens or conifers. Sockets for cable connections with Control Unit 3200-C, LED Light Source 3041-L or one additional component (e.g. LEDArray/ PAM-Fluorometer 3056-FL)
Cuvette temp. (in each air exit of upper and lower cuvette half), ambient temp.
Pt 100 type A, range -10 to +50 °C, accuracy ±0.1 °C
Temperature control: Three modes of temperature control
Tracking ambient temperature (with or without offset), set value for cuvette temperature and set value for leaf temperature; cuvette temperature ranging from 10 degrees below ambient temperature (decreasing with light intensity) to +50 °C
Leaf temp. measurement
Thermocouple, range -10 to 50 °C, accuracy ±0.2 °C
External miniature quantum sensor
Mini Quantum Sensor MQS-B/GFS sits on top of the Standard Measuring Head 3010-S. Selective PAR measurement, range 0 to 3000 μmol m-2 s-1, accuracy ±5%, cosine corrected (measuring photosynthetic photon flux density PPFD)
Internal light sensor
Selective PAR measurement, range 0 to 3000 μmol m-2 s-1 PAR, accuracy ±10%, two sensors, one in the upper and one in the lower part of the cuvette
Cuvette ventilation system
Two frequency controlled impellers, one in the upper and one in the lower part of the cuvette, speed adjustable
Leaf area
8 cm2 standard, interchangeable adapter plates from 1 to 10 cm2, flexible shape
Cuvette volume
40 ml
Operating temperature
-5 to 45 °C
Dimensions
31 cm x 7 cm x 13 cm (L x W x H)
Weight
1.6 kg (incl. cable and tubes 2 m long)
Design
LED array with 67 warm white LEDs
Light intensity
Range 0 to ca. 3000 μmol m-2 s-1 PAR max.
Homogeneity of light distribution
±7 % over 90 % sample area
Leaf area
standard 8 cm2 up to 10 cm2
Power consumption
5.3 W max., power supply via Standard Measuring Head 3010-S
Operating temperature
-5 to 45 °C
Dimensions
7.5 cm x 4.5 cm x 5.5 cm (L x W x H)
Weight
196 g
Design
Combined PAM chlorophyll fluorometer and LED light source comprising an LED array with red LEDs (for actinic illumination and saturation pulses), blue LEDs (for additional actinic illumination), far-red LEDs, additional red LEDs (for measuring light) and 6 photodiodes (for chlorophyll fluorescence detection)
Measuring light
Red LEDs (635 nm), modulation frequency 5 to 100 Hz
Actinic light
Blue LEDs (470 nm) and red LEDs (635 nm), range blue: 0 to 400 µmol m-2 s-1 PAR, range red: 0 to 3000 µmol m-2 s-1 PAR, mixable with variable proportions of red and blue up to a total PAR of 3000 µmol m-2 s-1 at 25°C
Saturation light
Red LEDs (635 nm), up to 12000 µmol m-2 s-1 PAR at 25°C
Far-red light
Far-red LEDs (peak: 740 nm)
Signal detection
PIN-photodiode protected by long-pass filter (> 700 nm), selective window amplifier
Socket for External Mini Quantum Sensor MQS-B\GFS
0 to 22000 µmol m-2 s-1
Measured and calculated parameters
F, FM, FM’, F0, F0’, FV/FM (max. PS II quantum yield), Y(II) (effective PS II quantum yield), ETR, Y(NPQ), NPQ, qN, qP, qL.
Internal PAR Sensor
independent determination of blue, red, and saturating light pulse intensity
Leaf area
8 cm2
Power consumption
48 W max. (during saturating light pulse), power supply via Standard Measuring Head 3010-S
Operating temperature
-5 to +50 °C
Dimensions
7.5 cm x 6 cm x 8 cm (L x W x H)
Weight
225 g
Inner Volume
Diameter 3.2 cm, height: 4 cm
Inner Volume

ca. 40 ml, 3 cm x 5 cm x 2.7 cm (L x W x H)

Design
Attachment to the Standard Measuring Head 3010-S for gas exchange measurements on above-ground plant matter of small pot plants. Consisting of an aluminum attachment, two pot holders and a support for the horizontal bedding of the Standard Measuring Head 3010-S
Pot holder size (outside)
Height: 7.5 cm,
diameter: 10 cm
Above ground volume
Height: 2.5 cm,
diameter: 4 cm
Usable pot size
Height: Max. 5.8 cm,
diameter: 5.5 to 7 cm

Adapter IMAG‐MAX/GWK1 for IMAGING-PAM (MAXI-Version) on Gas Exchange Chamber (3010-GWK1)

Design

Adapter Plate with legs and eye protection for positioning IMAG-MAXI Head on 3010-GWK1

Dimensions
18.5 cm x 20 cm 17 cm (L x W x H)
Weight
856 g
Design
Chamber consisting of an aluminum cooling block with two pneumatic connectors and transversal fan, flat polymer lid or user-designed cuvette; micro-processor controlled electronics with connectors for temperature sensors, humidity sensor, PAR-sensors, GFS-3000 or 3010-I/Box connection, power-input; cooled with Peltier-cooling units and ventilator
Measurement of chamber and ambient temperatures
Pt 100 type A, range -10 to 50 °C, accuracy ±0.1 °C. An extended version with a range from -10 to 75°C is available
Leaf temp. measurement
Thermocouple, range: -10 to 50 °C, accuracy ±0.2 °C, range of extended version: -10 to 75°C
Temperature control
Three modes of temperature control: Constant cuvette temperature, constant leaf temperature, follow ambient temperature with an offset
Temperature control range
-10°C to 50°C depending on ambient temperature and radiative heat intake.
With 4l volume, dark: 10 K below ambient temperature and 25 K above ambient temperature.
With flat lid, dark: 20 K below ambient temperature and 35 K above ambient temperature.
Range of extended version: -10 to 75°C
Relative humidity sensor
Range: 0 to 100% r.h., accuracy: ±1.5% (5 to 95% r.h.), T90 response time (11 to 75% r.h.): <10 s
External miniature quantum sensor
Mini Quantum Sensor MQS-B/GWK1 outside of chamber. Selective PAR measurement, range 0 to 2500 μmol m-2 s-1, accuracy ±5%, cosine corrected (measuring photosynthetic photon flux density PPFD)
Internal light sensor
Selective PAR measurement, range 0 to 2500 μmol m-2 s-1 PAR, accuracy ±10%, two sensors, one in the upper and one in the lower part of the cuvette
Cuvette ventilation system
Transversal fan
Maximum sample area
14 cm x 10 cm
Pneumatic connectors
Hose fittings for 10/8 mm (OD/ID) tubing
Inner volume of the cooling unit alone
840 ml (up to edge of aluminum frame)
Power supply
AC Power Supply 3020-N for laboratory operation
Power consumption
Max. 45 W
Operating temperature
-5 to 45 °C
Dimension of cooling unit
26 cm x 25 cm x 19.5 cm (L x W x H)
Weight
6.9 kg including cables and tubes
Cuvette Standard
Flat lid (inside: 16 cm x 14.5 cm, outside: 18.5 cm x 17 cm, volume: 320 ml); other design available on customer request
Optional glas lid
3010-GWK1/G, aluminium frame 18.4 cm x 17 cm x 2 cm with glass surface 0.4 cm and opening for petiolus
Optional interface
3010-I/Box for stand-alone operation of the GWK1
Design

LED-Panel fitting to the gas exchange chamber 3010-GWK1: Illuminated area 14 cm x 12 cm.
LED Colors: red, green, blue and white; maximum output (all colors together): 2000 μmol m-2 s-1 or better.
Air cooled; with separate power supply. Colors can be mixed with red, green, blue, and white in steps of intensity 0 to 100 or more; total intensity can be chosen in steps of 0.1%; operation with GFS-Win software via RS485 connector.

RGBW High Power LEDs

Blue: 455 ±10 nm, HBW (half bandwidth) 440 - 460 nm
Green: 525 ±10 nm, HBW 500 - 545 nm
Red: 625 ±5 nm, HBW 620 - 640 nm
White: 450 ±10 nm, HBW 435 - 460 nm; second peak at 590 ±25 nm, HBW 510 - 640 nm with tail up to 800 nm

Homogeneity of light distribution

± 10% within the 14x12 cm area or ± 3 μmol m-2 s-1 (whatever is bigger).

PAR measurement

PAR sensors with multiplier between -50 and -800 μmol m-2 s-1 per μA result in a range of 0 to 6400 μmol m-2 s-1, resolution: 1 μmol m-2 s-1

Fuse

10 A slow-blow fuse, 5x20 mm

Input voltage

16 V, 8 A

Voltage inside
up to 36 V
Power supply

AC Power Supply 3020-N for laboratory operation

Operating temperature
-5 to 45 °C
Homogeneity of light distribution

± 10% within the 14x12 cm area or ± 3 μmol m-2 s-1 (whatever is bigger).

Dimension

27 cm x 19 cm x 13 cm L x W x H

Weight
2.8 kg
Design

2 Aluminum boxes with individual foam lining for GFS-3000 and accessories

Dimensions

60 cm x 40 cm x 35 cm (L x W x H)

Weight

5 kg (each)

Design

2 Aluminum boxes with individual foam lining for GFS-3000 and accessories

Dimensions

60 cm x 40 cm x 35 cm (L x W x H)

Weight

5 kg (each)

Accessories

Design
The optical oxygen sensor 3085-O2 for gas measurements contains a sensor, which is based on luminescence quenching of a sensor dye. Molecular oxygen reversibly quenches the luminescence. This principle is very robust, has a very low drift and has virtually no interferences to other gases. Optics and electronics are sealed from the measured gas. Typically, the factory calibration is sufficient during lifetime of the sensor. The signal is temperature compensated.
Range
typical 0 - 50 kPa O2, maximal 0-200 kPa O2
Accuracy (10°C to 40 °C)
±0.02 kPa at 1 kPa; ±0.5 kPa at 20 kPa
(±0.02% O2 at 1%O2; ±0.5%O2 at 20%O2)
Operating temperature
-10°C to 60°C
Detection limit
10 Pa (0.01% O2)
T63 response time
< 2s
Drift@25°C
< 1% O2 / year at 20% O2
Minimum lifetime
> 50 000 000 measurements (1 meas./s)
Storage life
> 5 years in darkness at 20°C
Connector
USB
Supply voltage
3.3-5V supplied via USB
Current
8-10 mA
Weight
160 g
Dimensions
body: 8 cm x 5 cm x 5 cm
with rolled-up cable: 8 cm x 15 cm x 5 cm
Design
2.5 m fiberglass rod, holder for rod, 10 l air buffer volume with pneumatic connectors air in and air out, luggage net, 27 cm and 3 m hose with pneumatic connectors, 66 cm x 30 cm heat protection sunshield
Weight
1.2 kg
Design
High-performance maintenance-free rechargeable Li-ion battery with protection circuit. Use two batteries simultaneously.
Nominal voltage
14.4 V
Maximum Current Discharge
8 A continuous, current delivery may be limited below 10°C
Typical capacity
6.8 Ah
Operating temperature
-5 to +60°C (discharge) and 0 to 45°C (charge)
Storage temperature limits
-20 to 60°C, < 80%RH
Recommended storage temperature
< 21°C, in low humidity, free from corrosive gas. Temperatures above 45°C could degrade life.
Dimensions
5.3 cm x 7.9 cm x 2.3 cm (L x W x H)
Weight
0.45 kg
Design
Charger for charging of four eSmart Li-ion Batteries simultaneously. With active thermal management system, cooling fan, and OLED display showing for each battery: capacity (%), temperature, voltage, number of cycles and charging current.
Input voltage
90-240 AC input /150 W
Maximum charging current per bay
2 A
Recharging time for each battery
3-4 hours
Mains power supply
100 to 240 V AC, 50/60 Hz
Dimensions
27 cm x 17.6 cm x 5.3 cm
Weight
1.6 kg
Measuring area
Inner Volume
3 cm x 5 cm x 5.3 cm (L x W x H)
Design
PAM chlorophyll fluorometer enclosed in a metal tube, which can be connected to the Standard Measuring Head 3010-S. Measurement via an optical fiber, entering the leaf chamber of the Standard Measuring Head 3010-S through an air-tight connection
Measuring light
Blue LED (peak: 450 nm), modulation frequency: 10 and 500 Hz. PAR at 2 mm distance and ML-Ampl. 10: Ca. 0.3 μmol m-2 s-1 with low frequency, 15 μmol m-2 s-1 with high frequency
Saturating light
Blue LED (peak: 450 nm). At 1 mm distance: Typ. 11000 μmol m-2 s-1. At 2 mm: Typ. 6000 μmol m-2 s-1
Far-red light
LED (peak: 730 nm)
Signal detection
PIN-photodiode protected by a long pass filter (transmission=50% typ. at 645 nm), selective window amplifier
Measured and calculated parameters
F, FM, FM’, F0, F0’, FV/FM (max. PS II quantum yield), Y(II) (effective PS II quantum yield), ETR, Y(NPQ), NPQ, qN, qP, qL.
Power consumption
0.25 W continuously, 6.5 W (during saturating light pulse), supplied via Standard Measuring Head 3010-S
Operating temperature
-5 to 45 °C
Dimension of light guide
Length: 21 cm,
diameter: 1.5 mm
Dimensions of housing
Length: 20 cm,
diameter: 3 cm
Weight
150 g
Design
For darkening leaf samples in the field, made from plastic material, with sliding shutters, positioning aid and stainless steel clips
Weight
11g

Adapter IMAG‐MIN/GFS for IMAGING-PAM (MINI-Version) on Gas Exchange Standard Measuring Head (3010-S)

Design
Adapter plate with snap-on-mount for connecting IMAG-Mini Head to Standard Measuring Head 3010-S; 9.5 cm x 6 cm x 1.4 cm ( L x W x H)
Weight
30 g
Design
Cuvette is a sandwich of two 2 x 2 cm aluminum frames, each holding the end part of a Walz standard Perspex rod to connect various measuring heads of the DUAL-PAM-100 or DUAL-KLAS-NIR. Distance between Perspex rod and leaf: ca. 1 mm on each leaf side.
Pneumatically separated upper and lower cuvette halves. Controlled by a regulator unit with sockets for cable connections to the Control Unit 3000 C of the GFS-3000 and a trigger input line.
Cuvette temperature
Pt 100 type A (located near the Peltier elements), range -10 to 50 °C, accuracy ±0.1 °C
Temperature control
Set point value for cuvette temperature. Cuvette temperature ranging from 10 degrees below ambient to max. +50 °C
Leaf temperature measurement
Thermocouple, range -10 to 50 °C, accuracy ±0.2 °C
External miniature quantum sensor
Mini Quantum Sensor MQS-B/GFS: Selective PAR measurement, range 0 to 2500 μmol m-2 s-1 PAR, accuracy ±5%, cosine corrected
Leaf area
1.3 cm2
Trigger in
Triggers at 5 V → 0 V signal change
Operating temperature
-5 to 45 °C
Dimensions
Assembled cuvette: 10 cm x 4 cm x 12 cm (L x W x H), electronics box : 7 cm x 7 cm x 15 cm (L x W x H)
Weight
Cuvette, electronics box, cables, and mounting frame: 1.7 kg; Mounting Stand ST-101: 2 kg
Design
USB-RS485 converter with galvanic isolation (1kV) and connection cables. Serves to establish a connection between the COMP socket and the USB port of a PC. Also suitable for direct operation of the Standard Measuring Head 3010-S, the DUAL-PAM Gas-Exchange Cuvette 3010-DUAL, the Gas-Exchange Chamber 3010-GWK1, the LED-Panel RGBW-L084, or the Control Units 3000-C, 3100-C or 3200-C with external PC.
Dimensions
box: 8 cm x 4 cm x 2 cm attached cable 30 cm, USB-device cable: 1.5 m
Design

Stable tripod for mounting the Standard Measuring Head 3010-S, the tripod fits into the GFS-3000 transport box

Working height

54 cm – 130 cm

Dimensions

55 cm x 12 cm x 8 cm (L x W x H)

Weight

1050 g

Operation & GFS-Win Software

The GFS-3000 can be controlled via the integrated panel-PC or an USB connected external-PC, featuring the same user-friendly GFS-Win software.
The integrated panel-PC features a large color display (10 cm x 13 cm) with touch screen and background illumination, which is clearly readable in direct sunlight.

Beginners are able to operate the GFS-Win software with minimal training. The well thought-out software structure allows comfortable adjustment of measuring conditions as well as demonstrative data display.

Users are guided with illustrated tutorials in more sophisticated procedures e.g. calibrations. The control of the instrument from an external PC allows descriptive demonstrations of on-time experiments in classes or lectures.

Settings window: serves to enter measuring conditions.
Chart window: each magnitude can be displayed, the mouse curser indicates the given measured value.
Values window: shows all current values, and stability.
Report window: displays the stored values and recalculates data with a new leaf area or weight.
Program window: easy programming of user-defined protocols, e.g. CO2-curves or light-curves.
Quickview column: always visible for user defined display of present values.

Free software updates will keep your instrument always up-to date on latest developments.

IMAGING-PAM

Images of fluorescence parameters and PAR absorptivity reveal heterogeneities in the leaf function that cannot be detected by gas exchange measurements.In return, most physiological heterogeneities, or differences in genotypes, only become clearly visible in fluorescence images under changing CO2, O2 or temperature conditions, or under extreme conditions, all of which can be easily applied with a gas exchange system.

The IMAGING-PAM M-Series MINI version can be equipped with the Adapter IMAG-MIN/GFS, so that it connects to the Standard Measuring Head 3010-S with a simple but firm snap-on mount. This connection even enables imaging of objects located in various specialized cuvettes.
On the larger scale, imaging can be carried out using an IMAGING-PAM M-Series MAXI version in combination with the large-spaced Gas-Exchange Chamber 3010-GWK1. This facilitates climate controlled imaging over an area of 10 x 13 cm2 supplemented by gas exchange analysis. The software of both systems (GFS-Win and ImagingWin) operate in synchrony on one laptop exchanging data between each other. This allows automatic imaging during light curves or CO2-curves controlled by GFS-Win.

DUAL-PAM-100

The most sophisticated combination of Walz instruments is the GFS-3000, together with the P700 & Chlorophyll Fluorescence Measuring System DUAL-PAM-100, using the specially designed DUAL-PAM Gas-Exchange Cuvette 3010-DUAL. This novel setup is the first commercially available system allowing simultaneous analysis of PS I and PS II photochemistry simultaneously with CO2 gas exchange. The cuvette 3010-DUAL enables control of temperature and gas composition. Hence, the wide range of information provided by the DUAL-PAM-100 can be obtained under climate-controlled conditions concurrent with gas exchange data.

The small area of the cuvette 3010-DUAL (1.3 cm2), makes it very suitable for experiments on single Arabidopsis leaves. Also the P515/535 Emitter and Detector, which enable the DUAL-PAM-100 to measure the electro-chromic carotenoid shift and “light scattering”, are compatible with the cuvette 3010-DUAL. With the development of the DUAL-KLAS-NIR, the gas exchange cuvette 3010-DUAL was further adapted, so that the DUAL-KLAS-NIR can also be used together with the GFS-3000.
 

Gas-Exchange Chamber 3010-GWK1

The Gas-Exchange Chamber 3010-GWK1 can be operated with the GFS-3000, replacing the Standard Measuring Head 3010-S. The top of the chamber can be designed according to customer request. The gas-exchange chamber provides a big range in temperature control: More than 10 K below ambient temperature and up to 50°C.

The area of the Gas-Exchange Chamber 3010-GWK1 is designed to match the imaging area of the IMAGING-PAM M-Series Maxi version. Please consider using 3010-GWK1 in combination with the GFS-3000, that the maximum flow of the GFS-3000 is 1.9 l/min. Leaf samples producing too much humidity can limit the systems capabilities.

The LED-Panel RGBW-L084 complements the Gas-Exchange Chamber 3010-GWK1. Individually adjustable colors red, green, blue and white with high power LEDs illuminate together with a maximum output of 2000 μmol m-2 s-1 PAR or better.