摘要： 研究表明，南瓜结果期可划分为结果初期、中期和后期三个时期，各期有其生长特点并具临界特征。结果期间，叶面积增长和果实、种子的鲜、干重增长均呈S形曲线。叶面积、果实及种子的日增长量均以结果中期最大。开花后10～15天内果实重量、体积增长最快。花后30天果实干物质日均积累量达到高峰。花后20天内为种子形成、发育最旺盛时期。叶面积增长与果实鲜、干重增长高度相关（r=0.9849∗∗,0.9287∗∗）.

关键词: 南瓜, 果实, 发育规律

Abstract: The experiment results showed that the fruiting stage of seed pumpkin(Cucurbita moschata)could be divided into stages of primary, middle and late, which had characteristics of growth and critical peroid, respectively. The increments of leaf areas,fresh and dry weight of fruits and seeds were in a sigmoid pattern of growth.The daily increasing amounts of fruits, seeds and leaf areas were maxium in fruiting middle stage.The weight and volume of fruits increased rapidly in 10 to 15 days after flowering, and the highest level of the dry weight accumulation in fruit was at 30 days after flowring. The most vigorous stage of seed development was during 20 days after flowering. The seeds developed in the most vigorous stage 20 days after flowering.The increasing of leaf areas were tightly related with that of fresh and dry weight(r=0.9849∗∗,0.9287∗∗).

Key words: Pumpkin, Fruit, Regulation of development

中图分类号: 

• S642.101