摘要
本文应用灰色关联分析法,对河南省现阶段已经或即将推广的四种类型小麦品种进行了综合评估,明确了本试验中高肥冬性、高肥春性、中肥冬性和中肥春性品种组的优良品种。作者认为,和等权关联度排序相比较,加权关联度排序的评估结果更能反映品种产量等多个性状的实际表现;构造“参考品种”和赋予不同性状以不同权重是灰色关联分析的关键环节。
By using mathematical method of relational gradle analysis of the grey system theory, four types of wheat varieties were multifactorially evaluated. The best varieties among the four types—high yield with winterness, high yield with springness, meidiam yield with winterness and medium yield with springness were defined. Compared with eaual relational grade analysis, the weighted grade analysis was more reliable in assessing actual expression of yield and other characters of wheat variety. Forming the reference variety and giving different traits with different measures were key steps of the relational grade analysis.
出处
《河南农业大学学报》
CAS
CSCD
1992年第3期228-234,250,共8页
Journal of Henan Agricultural University
关键词
小麦
产量水平
关联度
选种
wheat
yield level
winterness
springness
relational grade analysis
reference variety
multifactorial evaluation
