scholarly journals CO2 gas exchange measurement of a whole plant using open chamber system

2018 ◽  
Vol 44 (1) ◽  
pp. 229-232
Author(s):  
KOJIMA Michinao ◽  
Mamoru SAKUMA
Keyword(s):  
Gas Exchange ◽  
Chamber System ◽  
Whole Plant ◽  
Exchange Measurement

scholarly journals A whole-plant chamber system for parallel gas exchange measurements of Arabidopsis and other herbaceous species

Plant Methods ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Katharina Kölling ◽  
Gavin M. George ◽  
Roland Künzli ◽  
Patrick Flütsch ◽  
Samuel C. Zeeman
Keyword(s):  
Gas Exchange ◽  
Herbaceous Species ◽  
Chamber System ◽  
Whole Plant

scholarly journals Measurement of Gas Exchange on Excised Grapevine Leaves Does Not Differ from In Situ Leaves, and Potentially Shortens Sampling Time

2021 ◽  
Vol 11 (8) ◽  
pp. 3644
Author(s):  
Suraj Kar ◽  
Thayne Montague ◽  
Antonio Villanueva-Morales ◽  
Edward Hellman
Keyword(s):  
Gas Exchange ◽  
Time Window ◽  
Leaf Gas Exchange ◽  
Growth Yield ◽  
Abiotic Stress Response ◽  
Gas Exchange Parameters ◽  
Minute Post ◽  
Exchange Measurement ◽  
Similar Accuracy

Use of leaf gas exchange measurement enhances the characterization of growth, yield, physiology, and abiotic stress response in grapevines. Accuracy of a crop response model depends upon sample size, which is often limited due to the prolonged time needed to complete gas exchange measurement using currently available infra-red gas analyzer systems. In this experiment, we measured mid-day gas exchange of excised and in situ leaves from field grown wine grape (Vitis vinifera) cultivars. Depending upon cultivar, we found measuring gas exchange on excised leaves under a limited time window post excision gives similar accuracy in measurement of gas exchange parameters as in situ leaves. A measurement within a minute post leaf excision can give between 96.4 and 99.5% accuracy compared to pre-excision values. When compared to previous field data, we found the leaf excision technique reduced time between consecutive gas exchange measurements by about a third compared to in situ leaves (57.52 ± 0.39 s and 86.96 ± 0.41 s, for excised and in situ, respectively). Therefore, leaf excision may allow a 50% increase in experimental sampling size. This technique could solve the challenge of insufficient sample numbers, often reported by researchers worldwide while studying grapevine leaf gas exchange using portable gas exchange systems under field conditions.

scholarly journals Whole plant chamber to examine sensitivity of cereal gas exchange to changes in evaporative demand

Plant Methods ◽  
2018 ◽  
Vol 14 (1) ◽  
Author(s):  
Iván Jauregui ◽  
Shane A. Rothwell ◽  
Samuel H. Taylor ◽  
Martin A. J. Parry ◽  
Elizabete Carmo-Silva ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Evaporative Demand ◽  
Whole Plant

scholarly journals Impact of CVVHD on pulmonary gas exchange measurement

Critical Care ◽  
10.1186/cc66 ◽  
1997 ◽  
Vol 1 (Suppl 1) ◽  
pp. P069 ◽  
Author(s):  
V Srámek ◽  
R Rokyta ◽  
I Novák ◽  
M Matejovic ◽  
J Ruzicka ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Pulmonary Gas Exchange ◽  
Exchange Measurement

scholarly journals A gas exchange measurement system and its application to rice and cassava leaves.

1984 ◽  
Vol 53 (4) ◽  
pp. 472-478 ◽  
Author(s):  
Akio KANDA ◽  
Katsu IMAI ◽  
Takashi MORIYA ◽  
Shigeru HANDA ◽  
Teijiro TERAJIMA
Keyword(s):  
Gas Exchange ◽  
Measurement System ◽  
Cassava Leaves ◽  
Exchange Measurement

scholarly journals Development of Gas-Exchange Measurement System for Micropropagated Plantlets Using 13CO2.

1999 ◽  
Vol 55 (1) ◽  
pp. 41-45
Author(s):  
Nancy K. OKAMURA ◽  
Eiji GOTO ◽  
Tadashi TAKAKURA ◽  
Kenji KURATA
Keyword(s):  
Gas Exchange ◽  
Measurement System ◽  
Exchange Measurement

scholarly journals Evaluation of Errors in Expiratory Flow Method of Breath-by-breath Gas Exchange Measurement

1984 ◽  
Vol 3 (4) ◽  
pp. 283-289
Author(s):  
Shunsaku KOGA ◽  
Masaki SHIMOTSU ◽  
Yoshihito SHlNOHARA ◽  
Tsuneo TAKAHASHI ◽  
Haruo IKEGAMI
Keyword(s):  
Gas Exchange ◽  
Flow Method ◽  
Exchange Measurement ◽  
Expiratory Flow

scholarly journals Gas exchange at whole plant level shows that a less conservative water use is linked to a higher performance in three ecologically distinct pine species

2018 ◽  
Vol 13 (4) ◽  
pp. 045004 ◽  
Author(s):  
D Salazar-Tortosa ◽  
J Castro ◽  
R Rubio de Casas ◽  
B Viñegla ◽  
E P Sánchez-Cañete ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Water Use ◽  
Whole Plant ◽  
Plant Level ◽  
Pine Species

scholarly journals Analysis of leaf wetting effects on gas exchanges of corn using a whole-plant chamber system

2018 ◽  
Vol 64 (No. 5) ◽  
pp. 233-239 ◽  
Author(s):  
Yasutake Daisuke ◽  
Yokoyama Gaku ◽  
Maruo Kyosuke ◽  
Wu Yueru ◽  
Wang Weizhen ◽  
...  
Keyword(s):  
Transpiration Rate ◽  
Vapour Pressure ◽  
Crop Production ◽  
Leaf Conductance ◽  
Chamber System ◽  
Night Time ◽  
Volumetric Soil Water Content ◽  
Whole Plant ◽  
Dew Formation ◽  
Use Efficiency

A whole-plant chamber system equipped with a transpiration sap flow meter was developed for measuring the transpiration rate even if leaves are wetted. A preliminary experiment in which dynamics of transpiration rate and/or evaporation rate of wetted and non-wetted plants were measured and compared with each other demonstrated the validity of the measurement system. The system was then used to analyse leaf wetting effects on gas exchange of corn under slight water stress conditions of soil (a volumetric soil water content of 9.7%). Leaf wetting decreased vapour pressure in leaves by decreasing leaf temperature but it increased vapour pressure in the air; therefore, vapour pressure difference between leaves and air, as a driving force of transpiration, was significantly lower in wetted plant. As a result, transpiration rate decreased by 44% and leaf conductance as an index of stomatal aperture was increased by leaf wetting. Such increasing leaf conductance due to leaf wetting increased the photosynthetic rate by 30% and therefore it improved water use efficiency (2.4 times). These results suggest that morning leaf wetting due to night time dew formation may have an advantage in crop production in semi-arid regions.

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