关键词: 猕猴桃（Actinidia chinensis Planch）, 苗期, 生长节律, 信阳市

Abstract: The phenophase and growth rhythm of two introduced kiwifruit （Actinidia chinensis Planch） varieties and local variety in Xinyang city, Henan province, was investigated. The results showed that the phenophase between two kiwi fruit varieties and local variety of Xinyang was different, which increased the varieties of diversity. These two kiwifruit varieties growing period of about 245 d, growth in the middle of April to the middle of September was larger, more than 85% of the total increment. Kiwifruit growth period can be divided into three periods, namely the growth, fast-growing period, at later growth stage. Using the linear model and Logistic curve fitting, have reached extremely significant level.

Key words: kiwifruit （Actinidia chinensis Planch）, seedling stage, growth rhythm, Xinyang city