应用高稳系数法综合评价玉米区试品种的高产稳定性

以2009年重庆市玉米区域试验平丘A组12个参试品种(组合)的汇总数据为材料,采用常规的产量稳定性分析方法和高稳系数法对各玉米品种(组合)的高产稳定性进行基础统计分析。结果表明:各参试品种(组合)的产量高稳系数与产量呈极显著正相关(r=0.887 7**),与产量变异系数呈显著负相关(r=-0.671 9*);常规产量稳定性分析中的回归系数与产量相关性不明显(r=0.126 8),但与产量标准差和变异系数呈极显著(r=-0.788 5**,r=-0.779 9**)负相关。研究表明:高稳系数可以作为玉米区域试验中高产稳定性的评价指标。

Evaluation of the High and Stable Yield Performance of Corn Varieties in Regional Trial Comprehensively by HSC Method

Using 12 maize varieties chongqing upland A group Maize regional-test in 2009 as material to evaluate the high and stable yield performance of maize varieties in regional trial comperhensively by convetional method of stability analysis of the yield and HSC method.The results showed that the coefficient of yield high stability and yield was positive correlation(r=0.887 7**) significantly;the coefficient of variation of the yeild and yeild was negative correlation(r=-0.671 9*);the regression coefficients of conventional output stability analysis had no obviouse correlation to yield(r=0.126 8),but to standard deviation and yield significant had negative correlation(r=-0.788 5**,r=-0.779 9**).The research showed that the high stability coefficient could be as an index to evaluate high and stable yield performance of maize varieties in regional trial.