Ranks and rank stability of wheat cultivars tested in national yield trials in Romania [Articol]

Abstract

Cultivars can play a key role in ensuring high wheat grain yields and reducing its variation under the increasing environmental variability. We used data on grain yield and coefficients of variation from sixty yield trials with Romanian winter wheat cultivars, conducted in four regions of the country, for four years (2021-2024) to analyze the ranks and rank variances of the tested cultivars. Despite the large variation of environments, we identified cultivars with better average ranks and with lower rank variances, which could contribute to higher and more stable yields in farms. Results are also useful for establishing priorities in breeding future cultivars.