Resilience of soybean cultivars to drought stress during flowering and early-seed setting stages.

ABSTRACT: Drought stress during the reproductive stage and declining soybean yield potential raise concerns about yield loss and economic return. In this study, ten cultivars were characterized for 20 traits to identify reproductive stage (R1-R6) drought-tolerant soybean. Drought stress resulted in a marked reduction (17%) in pollen germination. The reduced stomatal conductance coupled with high canopy temperature resulted in reduced seed number (45%) and seed weight (35%). Drought stress followed by rehydration increased the hundred seed weight at the compensation of seed number. Further, soybean oil decreased, protein increased, and cultivars responded differently under drought compared to control. In general, cultivars with high tolerance scores for yield displayed lower tolerance scores for qual

SUBMITTER: Poudel S 

PROVIDER: S-EPMC9870866 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature