Results 261 to 270 of about 180,291 (303)

Cell wall water shields stomata against falling leaf airspace humidity. [PDF]

New Phytol
Blatt MR, Hills A, Lawson T, Magill J.
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Do Daily and Seasonal Changes in Non-Structural Carbohydrates in Grapevine Leaves Contribute to Osmotic Adjustment and Regulation of Photosynthesis? [PDF]

Physiol Plant
Perry A, Sperling O, Ben-Gal A, Holbrook NM, Rachmilevitch S, Hochberg U.   +5 more
europepmc   +1 more source

Evaluation of Leaf Gas Exchange Using Carbon Isotopic Analysis

Evaluation of Leaf Gas Exchange Using Carbon Isotopic Analysis
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Mechanisms for Leaf Control of Gas Exchange

BioScience, 1985
Several mechanisms enable leaf stomata to optimize water loss with respect to carbon gain. Stomatal responses to environmental variation constitute a plant's first and second lines of defense against damaging water deficits. Changes in the concentrations of endogenous growth regulations and their influence on stomata may well be important to both ...
T. A. Mansfield, W. J. Davies
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Leaf gas exchange of upland and lowland rice cultivars

Photosynthesis Research, 1985
Leaf gas exchange of upland and lowland rice cultivars were measured during late vegetative and during grain filling stages in the field under upland and lowland growth conditions. The rate of photosynthesis and water use efficiency (the rate of photosynthesis/the rate of transpiration) under upland conditions decreased with ageing, but generally ...
S, Fukai, E, Kuroda, T, Yamagishi
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Modeling Leaf Gas Exchange

2016
Leaves are photosynthetic organs that absorb light and convert the photon energy of light to chemical energy for use in CO2 assimilation. Here we review how CO2 assimilation rates vary, depending on environmental factors and among leaves. Net CO2 assimilation is a balance between the carboxylation of ribulose 1,5-bisphosphate (RuBP) catalyzed by ...
Kouki Hikosaka, Ko Noguchi, Ichiro Terashima   +2 more
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Combined leaf gas-exchange system for model assessment

Journal of Experimental Botany
Abstract Leaf gas-exchange measurements are useful in assessing plant environmental responses. However, uncertainties in the leaf gas-exchange model potentially limit its application. The main challenge in the model-dependent calculations is to detect violations of assumptions.
Jun Tominaga, Yoshinobu Kawamitsu
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Leaf Gas Exchange Parameters Vary among Cotton Genotypes

Crop Science, 1994
In trying to increase the yield of upland cotton (Gossypium hirsutum L.), breeders have indirectly selected more for increases in harvest index than in photosynthesis. Future cotton yield advances may need increases in both harvest index and photosynthesis.
W. T. Pettigrew, W. R. Meredith
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Leaf Gas Exchange of Maize Plants Fumigated with Sulfur Dioxide

Journal of Environmental Quality, 1990
AbstractLeaf gas exchange was measured in maize (Zea mays L.) plants that had been exposed continuously for a period of 4 wk to a range of SO2 concentrations applied in fumigation chambers. Exposure to a constant SO2 level of 43 and 71 nLL−1 induced a decrease in the apparent photosynthesis and quantum yield, and an increase in the stomatal conductance
GERINI O, GUIDI, LUCIA, LORENZINI, GIACOMO, SOLDATINI GF   +3 more
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Modelled Influences of Non-exchanging Trichomes on Leaf Boundary Layers and Gas Exchange

Journal of Theoretical Biology, 2001
The two main resistances in the exchange of gases between plants and the atmosphere are stomatal and boundary layer resistances. We modeled boundary layer dynamics over glabrous and pubescent leaves (assuming non-exchanging trichomes) with leaf lengths varying from 0.01 to 0.2 m, and windspeeds of 0.1-5.0 m x s(-1).
M D, Schreuder, C A, Brewer, C, Heine
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