Identifying canopy wilting QTLs and evaluating remote sensing approaches for selecting drought-tolerant soybean.

ABSTRACT: Drought is the most damaging abiotic stress for soybean yield; cultivars with improved drought tolerance are needed to sustain and increase crop production. PI 603535 previously was identified as an ultra-slow canopy wilting (CW) line in a genome-wide association study but the quantitative trait loci (QTLs) underlying this phenotype have not been determined. In this study, a recombinant inbred line (RIL) population derived from Benning × PI 603535 was evaluated for three years under rain-fed conditions. CW was rated following extended periods of drought when CW variation was present. Aerial multispectral and thermal imagery was also captured in conjunction with visual ratings to explore the feasibility of implementing remote sensing to improve the efficiency and objectivity of drought eval

SUBMITTER: Burner N 

PROVIDER: S-EPMC12521297 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature