The beneficial impact of silicon on wheat drought resilience is dependent on cultivar and stress intensity.

ABSTRACT: Drought has a major impact on crop yields. Silicon (Si) application has been proposed to improve drought resilience via several mechanisms including modifying the level of stomatal gas exchange. However, the impact of Si on transpiration and stomatal conductance varies between studies. We assessed the impact of supplemental Si on wheat water use and drought resilience in two high Si accumulating genotypes that vary in stomatal density and stomatal conductance. These genotypes varied considerably in their responses to Si treatment and short-term severe drought at the booting stage of development. For example, gas exchange measurements revealed that one genotype (H5) showed a significant increase in stomatal conductance with Si treatment, but the other genotype (H3) did not. Application of S

SUBMITTER: Shaw K 

PROVIDER: S-EPMC12408560 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature