Genotypic, Developmental and Environmental Effects on the Rapidity of g_s in Wheat: Impacts on Carbon Gain and Water-Use Efficiency.

ABSTRACT: Stomata are the primary gatekeepers for CO₂ uptake for photosynthesis and water loss via transpiration and therefore play a central role in crop performance. Although stomatal conductance (g_s ) and assimilation rate (A) are often highly correlated, studies have demonstrated an uncoupling between A and g_s that can result in sub-optimal physiological processes in dynamic light environments. Wheat (Triticum aestivum L.) is exposed to changes in irradiance due to leaf self-shading, moving clouds and shifting sun angle to which both A and g_s respond. However, stomatal responses are generally an order of magnitude slower than photosynthetic responses, leading to non-synchronized A and g_s</

SUBMITTER: Faralli M 

PROVIDER: S-EPMC6479173 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature