中国南瓜主要性状配合力与遗传力分析

以12个中国南瓜高世代自交系为试验材料，采用NCⅡ设计配制36个杂交组合，分析了12个数量性状的遗传力、配合力。结果表明：在一般配合力上，6个母本的优劣顺序为Q1〉Q3〉Q4〉Q6〉Q2〉Q5，6个父本的优劣顺序为B1〉B3〉B5〉B4〉B2〉B6；亲本的一般配合力与其在杂交组合中的特殊配合力之间无必然联系；主蔓长度、可溶性固形物含量、干物质含量的狭义遗传力较高，早代选择效果较好；节间长度、单果质量、多糖含量、β-胡萝h素含量、维生素C含量、果实纵径、果实横径的狭义遗传力较低，活合存中高代讲行进择.

Combining Ability and Heritability of 12 Quantitative Traits in Cucurbita moschata

Thirty six hybrids derived from 12 inbred lines using NCⅡ design were used to study combining ability and heritability of 12 quantitative traits in Cucurbita moschata squash. The results indicated that the general combining ability order of female parent was Q1 〉Q3〉 Q4〉Q6〉Q2〉Q5, and that of male parents was B1 〉B3〉B5〉B4〉B2〉B6. There was no inevitable corresponding relation between general combining ability of the parent and special combining ability of its hybrid. The main vine length,soluble solid content,dry matter content had higher narrow sense heritability,and they should be selected in early generation. The inter-node length, single fruit weight,polysaccharide content, β-carotene content,Vitamin C content, fruit length, fruit diameter had lower narrow sense heritability, and they should be selected in later generations.