北部冬麦区旱地小麦新品种产量稳定性分析

Analysis on high and stable yield ability of dry-land wheat in north part of China

运用高稳系数法、变异系数法和适定性参数法对2001～2002年度北部冬麦区旱地组区试参试的7个品种的丰产稳产性进行综合分析。结果表明:高稳系数法较其它两种方法分析可靠、客观;参试品种中多数产量较对照种高,其中晋太170、长6878、陇原935丰产稳产性好。同时,长6878产量三要素变异系数较小,抗旱性也好;晋太170为强筋小麦,二者将成为北部冬麦区旱地主要推广品种。

The high and stable yield ability of 7 varities of dry-land wheat in the regional test in north part of China was studied by using the methods of high-stable coefficient, parameter of adaptability and coefficient of variation. The results show that the high-stable coefficient is prior to the other evaluation methods. Jintai 170, Chang 6878 and Longyuan 935 are the three recomended varieties with high and stable yield ability, in which Chang 6878 has a high drought resistance, and Jintai170 is a strong-food variety.