试分析玉米杂交种的稳定性

A PRELIMINARY ANALYSIS ON THE STABILITY OF MAIZE HYBRIDS

本文试用俞世蓉提出的稳定性参数分析了吉林省1985年中晚熟组玉米区域试验的15份杂交种的稳定性。结果表明吉单118、吉单122、黄莫17、432和BC7315×330五份杂交种产量高,稳产性好,适应性广。对俞世蓉提出的稳定性参数a;和Eberhart-Russell的稳定性参数b;的相关和回归分析表明,两者间的相关系数和回归系数分别为0.9731和0.8631,都达到了极显著水平。说明俞世蓉所提出的稳定性参数用于玉米杂交种时,与Eberhart-Russell的稳定性参数有同样效果。

The stability parameter suggested by Yu Shirong was used to analyse the yield stability of the 15 maize hybrids in the medium-late maturing regional test in 1985. The result indicated that the yield of JD118, JD122, HM17, 432 and BC7315×330 was both high and stable. They were adapted to a large range of areas. The corelation and regression analysis of Yu's stability parameter ai and the stability parameter bi suggested by Eberhart and Russell showed that the corelation and negression coefficients between them was 0.9731, and 0.8631 respectively, both of them were significant at 0.01 probability level, proving that Yu's stability parameter ai was as reliable as Eberhart and Russell's stability parameter bi when used in maize hybrids.