Large-scale evaluation of soybean germplasm reveals geographic patterns in shade tolerance and identifies elite genotypes for intercropping systems.

ABSTRACT: Shade tolerance is crucial for developing soybean varieties that are well-suited for intercropping systems. This study evaluated 460 soybean accessions from a global germplasm collection at two contrasting locations in China: Heilongjiang (HLJ) and Inner Mongolia (NM). The experiment used a split-plot design within a randomized complete block setup, with three replications at each site. The main plots consisted of two treatments (control and shade), and the 460 soybean accessions were randomly assigned as subplots within each treatment. Soybean genotypes were evaluated under shaded conditions (maize-soybean intercropping) and unshaded conditions (soybean monoculture) across multiple locations to assess shade tolerance and agronomic performance. Six agronomic traits were measured: plant hei

SUBMITTER: Zhang F 

PROVIDER: S-EPMC12362842 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature