论文部分内容阅读
以6年生的‘金昱’梨(Pyrus pyrifolia Nakai‘Jinyu’)为研究对象,对其新梢与果实生长发育动态进行研究。结果表明:‘金昱’梨新梢自3月下旬开始生长,到6月下旬停止生长,新梢长度从2.08 cm增长到101.72 cm,生长期为92 d,生长期间出现1次生长高峰;果实从4月初开始坐果,到8月上旬果实成熟停止生长,生育期125 d,果实纵、横径生长呈S形曲线,发育过程中出现3次生长高峰,分别在4月20日、6月8日、7月6日;新梢生长与果实生长发育关系密切,前期新梢与果实生长养分竞争激烈,后期新梢停止生长后果实膨大迅速并到达生长高峰。
The 6-year-old ’Pyrus pyrifolia Nakai’Jinyu’ was used to study the growth and development of its shoots and fruits. The results showed that the shoots of ’Jinyu’ pear began to grow from late March to the end of June, the length of shoots increased from 2.08 cm to 101.72 cm, the growth period was 92 days, and the growth peak appeared once. The fruit From the beginning of April, the fruit set began to fructify, and the fruit matured stopped growing in early August. The growth period was 125 days. The vertical and horizontal diameter of the fruit showed a S-shaped curve. During the development, there were three growth peaks, which were respectively on April 20 and June 8 On July 6, the growth of shoots was closely related to the growth and development of fruits. The early shoots were highly competitive with the growth and nutrient of fruits, and the fruits of new shoots were swollen quickly and reached the peak of growth after they were stopped growing.