Optimizing Crop Water Use for Drought and Climate Change Adaptation Requires a Multi-Scale Approach.

ABSTRACT: Selection criteria that co-optimize water use efficiency and yield are needed to promote plant productivity in increasingly challenging and variable drought scenarios, particularly dryland cereals in the semi-arid tropics. Optimizing water use efficiency and yield fundamentally involves transpiration dynamics, where restriction of maximum transpiration rate helps to avoid early crop failure, while maximizing grain filling. Transpiration restriction can be regulated by multiple mechanisms and involves cross-organ coordination. This coordination involves complex feedbacks and feedforwards over time scales ranging from minutes to weeks, and from spatial scales ranging from cell membrane to crop canopy. Aquaporins have direct effect but various compensation and coordination pathways involve ph

SUBMITTER: Burridge JD 

PROVIDER: S-EPMC9100818 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature