试验表明，单瓜种子粒数、种子百粒重和种瓜重是西葫芦种子产量构成的主要因素，三者与产种量均呈正相关，ｒ在０．３１６８～０．６８４３之间，除百粒重外，其它均达极显著水平。种子粒数对产种量的直接作用最大，通径系数为０．９６１９；百粒重作用次之（０．４４０３）；种瓜重无直接正向作用，但通过种子粒数对产种量的间接作用较大（０．７２０４）。提高产种量，首先应着力增加单瓜种子粒数及种子百粒重，其次增加瓜重 The results showed that the main factors affecting the seed yield of zucchini seed were the number of single melon seeds, the weight of seeds and the weight of seeds and melons, all of them had a positive correlation with the seed yield, r was between 0.3168 and 0.6843, Grain weight, the other reached a very significant level. The direct effect of seed number on the yield was the largest, with the path coefficient of 0.9619; the effect of 100-grain weight was the second (0.4403). There was no direct positive effect on seed weight, The indirect effect of larger (0.7204). Raise the production, the first should focus on increasing the number of single melon seeds and seed weight 100, followed by increasing weight