关键词: 南瓜（Cucurbita moschata Duch.）, 杂交组合, 产量, 农艺性状, 相关分析, 通径分析

Abstract: Correlation analysis and path analysis of 12 agronomic traits of 24 pumpkin hybrid combinations were performed in this study. The results showed that, the fruit neck and melon have rich genetic variation. The yield per plant have significantly positive correlation with single fruit weight （r=0.66**）, vine length （r=0.56**）, and the number of fruit per plant （r=0.53**）, and internode length （r=0.47*）, leaf area （r=0.46*） and the first female flower node （r=0.43*） showed a significant positive correlation, and negatively correlated with melon （r=-0.22）. The results of the path indicate that the direct effect of the weight of single melon, the number of melons per plant, the diameter of the fruit, the first female flower node, the melon, and the internode length have a positive effect on the yield of pumpkin per plant, vine length, leaf area and fruit. The direct effect of longitudinal diameter, melon belly and flesh thickness on the yield per plant of pumpkin is negative. Therefore, in the breeding of high yield, it is necessary to coordinate the relationship between the traits, the effect of the weight of single melon on the yield, and the number of vines and the number of single plants.

Key words: pumpkin（Cucurbita moschata Duch.）, hybrid combinations, yield, agronomic traits, correlation analysis, path analysis