A Multi-Environment Trial Analysis of Frost Susceptibility in Wheat and Barley Under Australian Frost-Prone Field Conditions

• DOI: 10.3389/fpls.2021.722637
• Publication Date: 2021-08-19T15:00:20Z
• Authors: Ariel Ferrante; Brian R. Cullis; Alison B. Smith; Jason A. Able
• Keywords: Frost (temperature); Germ plasm; Field trial; Plant Breeding

Low temperatures during the flowering period of cereals can lead to floret sterility, yield reduction, and economic losses in Australian crops. In order breed for improved frost susceptibility, selection methods are urgently required identify novel sources tolerant germplasm. However, presence genotype by environment interactions (i.e. variety responses a change environment) is major constraint select most appropriate varieties any given target environment. An advanced method analysis multi-environment trials that includes factor analytic tools summarize overall performance stability specific trait across environments could deliver useful information guide growers plant breeding programs providing decision making-strategy. this study, updated approached (MET) have allowed comparisons with similar susceptibility but which different response changes or vice versa. This MET included wide range sowing dates grown at multiple locations from 2010 2019, respectively. These results, as far we aware, show first-time genotypic differences damage through phenotyping vast number accurate empirical measurements reached excess 557,000 spikes. has resulted substantial experimental units (10,317 5,563 wheat barley, respectively) times 2019. Varieties low (OP) (root mean square deviation -RMSD) were less susceptible, more consistent all environments, while OP high RMSD adapted environmental conditions.