板栗新品种云丰结果枝粗度、结苞量及坚果重量的研究

Study on Diameter of Fruit Branch,Number and Weight of Fruit of Chestnut

本文在调查板栗新品种云丰结果枝生长状态和结苞量、坚果重量的基础上，进行统计分析。认为：（1）云丰板栗不同粗度结果枝出现频率呈正态分布，97％以上的结果枝基部粗度在0．4～0．9cm之间。（2）云丰板栗结苞量与结果枝基部粗度相关性最为密切，结果枝粗度对结苞量呈正相关。（3）结果枝粗度、结苞数和单果重呈线性关系，在结果枝粗度相同的情况下，结苞数与单果重呈负相关。为云丰板栗定株定产、定枝定果、疏花疏果、限产保质、合理修剪、确定量化指标提供依据。

Growth states , number and weight of chestnut were investigated and analized statistically. The results showed that ： （ 1 ） Above 97% of the base diameter of fruit branch were between 0.4 - 0.9 cm, the occurrence frequency of fruit bearing branch was in normacl distribution ; （2） The number of chestnut fruit showed some positive relation with base diameter; （ 3 ） The thickness of fruit bearing branch, the number of fruit and the weight of individual fruit were positively correlated, the number of fruit and the weight of individual fruit however, were negatively correlated when the thickness of the fruit bearing branch was the same. The results can provide basis for the control of yield, number of fruit, flower and fruit thinning, quality, rational pruning and quantitative indexes.