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研究农作物品种产量的稳定性,一直是人们十分关注的课题。经过多年多点试验后,按Eberhart-Russell(1966)模式计算和分析供试新品种(杂交种)的产量稳定性参数b和S~2d,将能全面评价品种的适应范围和稳定性。回归系数b用于说明品种对环境的反应能力,回归离差S~2d用于说明品种的稳定性。本文目的在于用这种方法估测国内外一些有希望的高粱杂交种及其亲本单株产量的稳定性参数,评价它们的适应性和稳定性,并探讨该法应用中的问题。
Research on the stability of crop yield has always been a topic of great concern to people. After many years of experiments, calculating and analyzing the yield stability parameters b and s ~ 2d of the tested new varieties (hybrids) according to the Eberhart-Russell (1966) model will fully evaluate the adaptability and stability of the varieties. The regression coefficient b is used to describe the ability of the cultivars to respond to the environment. The regression deviation S ~ 2d is used to illustrate the stability of the cultivars. The purpose of this paper is to evaluate the stability parameters of some promising sorghum hybrids and their parents at home and abroad, evaluate their adaptability and stability, and to explore the application of this method.