High water use efficiency due to maintenance of photosynthetic capacity in sorghum under water stress.

ABSTRACT: Environmental change requires more crop production per water use to meet the rising global food demands. However, improving crop intrinsic water use efficiency (iWUE) usually comes at the expense of carbon assimilation. Sorghum is a key crop in many vulnerable agricultural systems with higher tolerance to water stress (WS) than most widely planted crops. To investigate physiological controls on iWUE and its inheritance in sorghum, we screened 89 genotypes selected based on inherited haplotypes from an elite line or five exotics lines, containing a mix of geographical origins and dry versus milder climates, which included different aquaporin (AQP) alleles. We found significant variation among key highly heritable gas exchange and hydraulic traits, with some being significantly affected by v

SUBMITTER: Al-Salman Y 

PROVIDER: S-EPMC11565205 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature