中国南瓜主要经济性状的灰色关联分析

采用灰色系统理论和方法对129份中国南瓜F1代品系的10个主要经济性状进行了关联分析。结果表明,与单瓜重关联度最大的为第一雌花节位和蔓粗;与可溶性固形物含量关联度较大的是节间长度、瓜横径、蔓粗;而与第一雌花节位关联度最大的是蔓粗;与果形指数关联度最大的是瓜纵径。最后文章讨论了蔓粗在南瓜目标育种中的重要作用。

Grey relational analysis of the main economic characters in Cucurbita moschata

The association degree between ten main economic characters of 129 F_1, hybrid lines were analysed with gray system theory. The results showed that bigger association degrees were the first female flower and stem diameter to fruit weight. To soluble solid content, the bigger association degrees were internodes length, fruit transverse diameter and stem diameter. To node of the first female flower, the biggest association degree was stem diameter. To fruit shape index, the biggest association degree was vertical diameter of fruit. Finally, the role of stem diameter in pumpkin for objective breeding was disc-ussed.