Pericarp growth dynamics associate with final grain weight in wheat under contrasting plant densities and increased night temperature.

ABSTRACT:

Background and aims

The pericarp weight comprises <17 % of wheat grain weight at harvest. The pericarp supports the hydration and nutrition of both the embryo and endosperm during early grain filling. However, studies of the pericarp and its association with final grain weight have been scarce. This research studied the growth dynamics of wheat pericarp from anthesis onwards and its relationship to final grain weight under contrasting plant densities and night warming.

Methods

Two spring wheat cultivars contrasting in kernel weight (Bacanora and Kambara) were sown in field conditions during seasons 2012-13 and 2014-15. Both genotypes were grown under contrasting plant density (control, 370 plants m-2; and low plant density, 44 plants m-2) and night temperatures, i.e. at ambi

SUBMITTER: Herrera J 

PROVIDER: S-EPMC7596374 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature