Comparisons of WUE in twelve genotypes of winter wheat and the relationship between δ ¹³C and WUE.

ABSTRACT: Twelve winter wheat (Triticum aestivum) genotypes were examined for differences in grain yield, water use efficiency (WUE), and stable carbon isotope composition (δ13C) in flag leaves. The plants were subjected to rain-fed treatment and supplemental irrigation at the jointing and anthesis stages, during the 2015-2016 and 2016-2017 winter wheat growing seasons. The relationships between δ13C with grain yield and WUE were analyzed under two different water environments. The results indicated that there were significant differences in δ13C, grain yield, and WUE among wheat genotypes both under rain-fed and supplemental irrigation conditions. The δ13C values increased with grain-filling proceeding, the δ13C being lower under supplemental irrigation treatment than that under rain-fed tre

SUBMITTER: Huang G 

PROVIDER: S-EPMC6475135 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature