Above and belowground traits impacting transpiration decline during soil drying in 48 maize (Zea mays) genotypes.

ABSTRACT:

Background and aims

Stomatal regulation allows plants to promptly respond to water stress. However, our understanding of the impact of above and belowground hydraulic traits on stomatal regulation remains incomplete. The objective of this study was to investigate how key plant hydraulic traits impact transpiration of maize during soil drying. We hypothesize that the stomatal response to soil drying is related to a loss in soil hydraulic conductivity at the root-soil interface, which in turn depends on plant hydraulic traits.

Methods

We investigate the response of 48 contrasting maize (Zea mays) genotypes to soil drying, utilizing a novel phenotyping facility. In this context, we measure the relationship between leaf water potential, soil water potential, soil water content a

SUBMITTER: Koehler T 

PROVIDER: S-EPMC9992933 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature