用高稳系数法评价玉米品种的高产稳产性

应用高稳系数（HSC）法对1994年华北春玉米区试结果进行分析,综合评价参试品种的高产性和稳产性。12个品种中,3138高产稳产性最好,旱21×丹85566虽然丰产性好,但稳产性差。长试19丰产性和稳产性都差。高稳系数法,简便实用,所得结果与常规分析基本一致。

High and Stable Yield Apprasing of Maize Varieties by the High-stable Yield Coefficient

The outcorne of regional test of spring maize in North China in 1994 is analysed by the high-stable yielding coefficient (HSC) method and the high yielding ability and yield stability of the maize varieties are appraised synthetically. The result showed that: "3l38"is the highest in average plot yield among 12 varieties (x = 21.1 ), 31 percent higher than Dan yu 13. Although its yielding ability is better,the stability of yield of "Han 21×Dan 85566"is Worse both the yielding ability and the stability of yield of "Changshi 19"is the lowest(x= 16. 0)among all varletles. It is concluded that "HSC"is slmple,convinient and practical,and the result from it is consistant with the conventional analysis.