Black Rice Performance Under Water Deficit Conditions and Genotype X Environment Interactions.

ABSTRACT: Rice is a staple food grown worldwide. While white rice varieties have been extensively studied, there is limited information on the performance of pigmented rice genotypes and their tolerance to water deficit. This study evaluated nineteen black rice genotypes and one white cultivar over three years under contrasting water regimes: traditional flooding and non-flood irrigation (NFI). Genotype-environment interactions and their impact on agronomic, yield, and grain quality traits were assessed. Black genotypes under NFI showed reduced flowering and grain quality. The average yield was 31% lower than the white cultivar. Significant genetic correlations were found between grain yield and days to anthesis (DSA), grain weight (TGW), chalkiness (CHA), and translucency (TRAN), with high broad-se

SUBMITTER: Brunet-Loredo A 

PROVIDER: S-EPMC12655899 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature