摘要： 通过对印度南瓜果实主要数量性状的通径分析表明，各性状与单瓜产籽数的相关程度依次为单瓜重（0.8765）>瓜横径（0.8622）>瓜纵径（-0.7472）>籽粒长（0.5694）>籽粒宽（0.4284）>千粒重（-0.0604）.各性状对单瓜产籽数起直接作用大小依次为瓜横径（0.4749）>单瓜重（0.3638）>籽粒宽（0.2122）>瓜纵径（-0.1741）>籽粒长（-0.1257）>千粒重（-0.0427）.瓜横径和单瓜重对单瓜产籽数具有决定性的正向直接作用，瓜纵径为负向直接作用。在籽用南瓜丰产育种中，应以瓜横径和单瓜重作为主要性状选择指标，同时注意瓜纵径的牵制作用。
关键词:
印度南瓜,
产籽数,
通径系数
Abstract: The correlation analysis and path analysis of the main quantity characteristics of fruit of pumpkin (C. maxima)were studied in this paper. The correlation coefficient between the seeds per fruit and the other characters of the fruit are as follows; the average fruit weight (0.8765) >the fruit width (0.8622)>the fruit length(-0.7472)> seeds length (0.5694)> seeds width (0.4284) >the weight of a thousand seeds(-0.0604). The main factors the seeds yeild per fruit are as follows:width of the fruit(0.4749)>weight of the fruit(0. 3638)>width of the seeds (0.2122) > length of the fruit(-0.1741)>length of the seeds(-0.1257)>the weight of a thousand seeds(-0.0472). The seeds yeild per fruit positively effected by the width of the fruit,average weight of the fruit otherwise the negative effected by the length of the fruit. So the width and weight of the fruit could be as the selected characteristics in breeding of the pumpkin seeds used variety and pay attention to the adverse effects of the length of the fruit.
Key words:
Pumpkin(C.maxzima),
Seeds per fruit,
Path coefficient
中图分类号:
崔世茂, 陈源闽, 薛河儒, 赵清岩, 王若青. 印度南瓜单瓜产籽数与影响因素分析[J]. 华北农学报, 1996, 11(1): 114-117. doi: 10.3321/j.issn:1000-7091.1996.01.021.
Cui Shimao, Chen Yuanmin, Xue Heru, Zhao Qingyan, Wang Ruoqing. Analysis of Seeds per Fruit and Effective Factors in Indian Pumpkin[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1996, 11(1): 114-117. doi: 10.3321/j.issn:1000-7091.1996.01.021.