Genotypic performance of Australian durum under single and combined water-deficit and heat stress during reproduction.

ABSTRACT: In Mediterranean environments, water deficiency and heat during reproduction severely limit cereal crop production. Our research investigated the effects of single and combined pre-anthesis water-deficit stress and post-anthesis heat stress in ten Australian durum genotypes, providing a systematic evaluation of stress response at the molecular, physiological, grain quality and yield level. We studied leaf physiological traits at different reproductive stages, evaluated the grain yield and quality, and the associations among them. We profiled the expression dynamics of two durum microRNAs and their protein-coding targets (auxin response factors and heat shock proteins) involved in stress adaptation. Chlorophyll content, stomatal conductance and leaf relative water content were mostly reduce

SUBMITTER: Liu H 

PROVIDER: S-EPMC6802220 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature