Evaluation of G × E × M Interactions to Increase Harvest Index and Yield of Early Sown Wheat.

ABSTRACT: Harvest index (HI) is the ratio of grain to total shoot dry matter and is as a measure of reproductive efficiency. HI is determined by interactions between genotypes (G), environment (E), and crop management (M). Historic genetic yield gains due to breeding in wheat have largely been achieved by increasing HI. Environmental factors are important for HI and include seasonal pattern of water supply and extreme temperatures during crop reproductive development. Wheat production in Australia has been dominated by fast-developing spring cultivars that when sown in late-autumn will flower at an optimal time in early spring. Water limited potential yield can be increased by sowing slower developing wheats with a vernalization requirement (winter wheat) earlier than currently practiced such that t

SUBMITTER: Porker K 

PROVIDER: S-EPMC7366857 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature