Results 251 to 260 of about 67,256 (291)

Stomatal Conductance and Photosynthesis

Annual Review of Plant Physiology, 1982
This research is part of an effort that the ICT (Institute of Tropical Cultivation) has been doing for several years tending to develop superior genotypes of cocoa (Theobroma cacao L.). That is why this study aims to find tolerant or moderately tolerant cocoa genotypes and accessions to water stress with resistance to pests and diseases and high ...
G D Farquhar, T D Sharkey
exaly   +2 more sources

Stomatal conductance correlates with photosynthetic capacity

Nature, 1979
Previous studies on the Physiology of stomata in higher plants suggest that stomata influence the rate of CO2 fixation in leaf mesophyll tissue. We believe that an equally important stomatal function has not been fully recognised; that stomatal aperture is determined by the capacity of the mesophyll tissue to fix carbon.
S. C. Wong, I. R. Cowan, G. D. Farquhar
exaly   +2 more sources

Salinity-specific stomatal conductance model parameters are reduced by stomatal saturation conductance and area via leaf nitrogen

Science of The Total Environment, 2023
Modeling stomatal behavior is necessary for accurate stomatal simulation and predicting the terrestrial water‑carbon cycle. Although the Ball-Berry and Medlyn stomatal conductance (gs) models have been widely used, variations and the drivers of their key slope parameters (m and g1) remain poorly understood under salinity stress.
Qi, Liao, Risheng, Ding, Taisheng, Du, Shaozhong, Kang, Ling, Tong, Shuai, Li   +5 more
openaire   +2 more sources

Estimating stomatal conductance with thermal imagery

Plant, Cell & Environment, 2006
ABSTRACTMost thermal methods for the study of drought responses in plant leaves are based on the calculation of ‘stress indices’. This paper proposes and compares three main extensions of these for the direct estimation of absolute values of stomatal conductance to water vapour (gs) using infrared thermography (IRT).
Leinonen I, Grant OM, Tagliavia CPP, Chaves MM, Jones HG   +4 more
openaire   +3 more sources

Stomatal conductance and stomatal behavior in Populus clones and hybrids

Canadian Journal of Botany, 1988
Responses of abaxial, adaxial, and total leaf conductance to incident photosynthetic photon flux density, solar irradiance, and changing leaf water potential, as well as diurnal and seasonal patterns of stomatal conductances, were examined under field conditions for six Populus clones. Clones belonged to the species P.
Ceulemans, Reinhart, Impens, Ivan, IMLER, R   +2 more
openaire   +2 more sources

Oscillations in stomatal conductance and plant functioning associated with stomatal conductance: Observations and a model

Planta, 1972
Measurements of transpiration, leaf water content, and flux of water in a cotton plant exhibiting sustained oscillations, in stomatal conductance are presented, and a model of the mechanism causing this behaviour is developed. The dynamic elements, of the model are capacitors-representing the change of water content with water potential in mesophyll ...
openaire   +2 more sources

An Empirical Model of Stomatal Conductance

Australian Journal of Plant Physiology, 1984
An empirical model of stomatal conductance is presented. The predictions of conductance correlate with experimental determinations of the responses to several kinds of short-term and long-term perturbations, including irradiance, temperature, CO2 and O2 partial pressures, and leaf age and nitrogen nutrition.
GD Farquhar, SC Wong
openaire   +1 more source

Stomatal Conductance, Photosynthesis, and Transpiration, Modeling

2011
absent
openaire   +2 more sources

Patchy stomatal conductance: emergent collective behaviour of stomata

Trends in Plant Science, 2000
Until recently, most scientists have tacitly assumed that individual stomata respond independently and similarly to stimuli, showing minor random variation in aperture and behaviour. This implies that stomatal behaviour should not depend on the scale of observation. However, it is now clear that these assumptions are often incorrect.
K A, Mott, T N, Buckley
openaire   +2 more sources

Stomatal and surface conductance of tropical rainforest

Agricultural and Forest Meteorology, 1991
Abstract Although the absolute values of stomatal conductance of tropical rainforest vary greatly, there is some similarity in the response to humidity deficit and radiation. Stomatal conductance decreases downward through the canopy of Amazonian rainforest.
A.Johannes Dolman, John H.C. Gash, John Roberts, W.James Shuttleworth   +3 more
openaire   +1 more source