Stem traits promote wheat climate-resilience.

ABSTRACT:

Introduction

Wheat grain filling processes under post-anthesis stress scenarios depend mainly on stem traits and remobilization of stem water-soluble carbohydrates (WSC).

Methods

A diverse panel of advanced semi-dwarf spring wheat lines, representing a natural variation in stem traits (WSC content, stem diameter, peduncle length, and stem wall width), was used to identify specific traits that reliably reflect the relationship between WSC and grain yield. The panel was phenotyped under various environmental conditions: well-watered, water-limited, and heat stress in Mexico, and terminal-drought in Israel.

Results

Environmental stresses reduced grain yield (from 626 g m^-2 under well-watered to 213 g m^-2 under heat), lower internode diameter, and pe

SUBMITTER: Ntawuguranayo S 

PROVIDER: S-EPMC11308436 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature