作物品种区域试验产量结果的综合分析法

利用联合方差分析、品种稳定性分析、聚类分析法对 1 998年四川省杂交玉米区域试验山区组产量结果进行了综合分析发现 :地区间、品种间差异极显著 (P <0 0 1 ) ,各品种在不同地区表现不相同 (P <0 0 1 ) ;除七三单交外 ,其余 7个品种稳定性较差 ;8个品种分为三类 :第一类雅 970、SAU97- 3、雅 96 2 ,第二类绵 8788、绵 41× 2、MG - 1 5、宜 95 0 7,第三类七三单交 ,第一类与第二、三类间差异极显著 (P <0 0 1 ) ,第二与第三类间在α =0 2 5水平上差异显著

Synthetical Analysis of Regional Crop Variety Trial

Data (Mountain Group) of regional maize crorss trial of Sichuan Province in 1998 was analyzed synthetically by means of joint analysis of variance, analysis of variety stability and cluster analysis. The following results are obtained: ①The differences among regions and among crosses are significant at 0 01 level, and the expression of each cross is different at different region (at 0 01 level); ②The stability of the other 7 crosses is worse except single cross 73; ③Eight crosses are classified into three groups. The first group includes Ya 970, SAU 97 3 and Ya 962. The second group includes Mian 8788, Mian 41×2, MG 15 and Yi 9507. Single cross 73 belongs to the third group. The difference between the frist group and the other two groups is significant at 0 01 level. The differene between the seeond group and the third group is significant at 0 25 level.