杏树不同年龄结果枝组的生长结果特性

Investigation on the Growth and Fruiting Capacity of the Spur of the Apricot

以黄土旱原成龄杏树为试材,系统地研究了不同年龄结果枝组的生长结果特性。结果表明,以2—3年生结果枝组新梢生长势强、叶片发育好、光合速率高、雌蕊败育率低、坐果率高、果实大;4年生结果枝组次之;5年生结果枝组生长势减弱、叶片功能衰退、结果性能下降.

The growth and fruiting capacity of the reproductive branch complex at different ages has been systematically studied. It was shown that the growth of the complex was strongest at their 2 to 3 ages, the leaves will developed with high photosynthetic rate, and a low abortion in pistils leading to a higher rate of fruit set and larger fruit size. The growth rate of the complex at their 4th year begin to decrease and the fruiting capacity sharply droped at their 5th year onwards.