关键词: 小麦[49EJ, 61DA], 产量[83AB], 作物育种[49DD]

Abstract: This paper, by using the method of stability parameters suggested by Eber-hart, S. A and W. A. Russell in 1966, appraises the stability parameters on yield of 8 new wheat cultivars or strains tested at 7 different ecological sites in 1995's Liangshan Sichuan wheat regional test. The results showed highly significant genotype(G)-environment(E) interaction effect for yield. ‘Xifu 5’ possessed properties of high yield and stability, ‘91γ-363’ and ‘88-16-2’ presented middle yield and stability. No linear relationships between G-E interaction and E for ‘7559’ and ‘3033’ were found. The analysis on stability variance of their G-E interaction effects indicated that ‘7559’ was a high yield and no stable variety, but ‘3033’ with middle yield and no stability. It was suggested that the application σi² of regression model for measuring the stability of the response of genotype at various environments is effective and informative.

Key words: WHEAT, YIELD, GROP BREEDING