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用秩次分析法分别对参加2003-2005年中国西南区玉米区域试验1组和2组的各品种进行产量性能和稳产性评价.结果表明,1组25个品种中中单808、渝单8号和遵玉8号表现高产且稳定性强,辽127和YA04273表现高产但稳定性中等.2组29个品种中DH3831、GM4095和鑫丰1号表现高产且稳定性强,承玉15、东4243、X1152A、DH3838、DH3632和奥试3202表现高产但稳定性中等.其中,中单808、渝单8号、遵玉8号、辽127、DH3831、东4243、X1152A、DH3838、DH3632和奥试3202这些品种分别在2004年和2005年通过国家审定,在实践上证明秩次分析法能客观、公正地对品种的产量性能和稳定性进行评价.建议用加权法计算品种秩次平均数和秩次方差的平均数、标准差和50%置信度的置信下限和置信上限.
Using rank analysis method, the yield performance and the stability of each group in the first group and the second group in the corn regional experiment in Southwest China from 2003 to 2005 were evaluated respectively.The results showed that in the first group of 25 cultivars Zhongzhong 808 and Yudan 8 No.2 and Zunyu No.8 showed high yield and strong stability, Liao 127 and YA04273 showed high yield but medium stability. Among 29 cultivars in two groups, DH3831, GM4095 and Xinfeng No.1 showed high yield and strong stability, 4243, X1152A, DH3838, DH3632 and Austrilia 3202 showed high yield but moderate stability, among which, Zhongdan808, Yudan8, Zunyu8, Liao127, DH3831, Dong4243, X1152A, DH3838, DH3632, 3202 These varieties were approved by the state in 2004 and 2005, respectively, and it was proved in practice that rank analysis could objectively and justly evaluate the yield performance and stability of varieties.It is suggested to use the weighting method to calculate the rank average and rank of varieties The mean of the mean square deviation, the standard deviation and the confidence lower limit and confidence limit of 50% confidence.