大白菜杂交组合(品种)灰色关联度综合评判方法的建立

通过对产量性状(叶球重量、净菜率、单位面积产量),农艺性状(生育期、外叶数、株高),品质性状(商品品质、软叶率、风味品质),抗病性(病毒病病情指数、霜霉病病情指数、软腐病发病率)等4类12个性状进行调查和测定,应用灰色系统理论中的关联度分析方法,建立了一套大白菜杂交组合(品种)灰色关联度多维综合评判方法,为客观、准确地从众多大白菜组合中决选出优良新品种提供了科学依据,提高了新品种选育的准确性和选择效率,进而加快育种进程。

Establishment on Integrated Evaluation Method of Gray System Theory on New Combinations of Chinese Cabbage

Twelve characters in four categories were investigated and determined: yield character(including leaf head,clean vegetable ratio and yield of unit area),agronomic character(life period,number of outer leaves,plant height),qualitative character(commercial character,ratio of soft leaf and flavoring character) and disease resistance(disease index of virus,downy mildew and soft rot).A series of multilateral dimension all-round judgment method about gray related degree of new Chinese cabbage cultivars.This method make the selective breeding of new well quality cultivars from large quantity Chinese cabbage combination or cultivars,efficiently develop the exactitude and select efficiency of breed new cultivars.