板栗单株产量的主要影响因素相关分析及通径分析

目的]探究影响板栗单株产量的几个主要园艺性状与单株产量之间的关系,为板栗育种和提高产量提供理论基础。方法]应用相关分析和通径分析的方法,研究与板栗单株产量有密切联系的8个性状及其之间的关系。结果]篷数/果枝与单株产量关系最密切,在生产上可作为丰产育种选择的主要性状,并得到了8个性状与单株产量之间通径系数及线性回归方程。结论]蓬数/果枝、单果重量、粒/篷3个性状为影响板栗单株产量的关键性状。

Correlation and Path Analyses on the Main Factors Influencing Chinese Chestnut Yield per Plant

Objective] The purpose of the study was to explore the relationship between several main horticultural characters influencing the yield per plant of Chinese chestnut and yield per plant so as to provide theoretical base for the breeding and yield enhancement of Chinese chestnut.Method] The correlation and path analyses were applied to study the 8 characters having close relationship with yield per plant of Chinese chestnut and their relationships each other.Result] Fructification number per fruit branch had closest relationship with the yield per plant,which could be used as the main selective characters of high-yield breeding in production.And the path coefficient and linear regression equation between the 8 characters and yield per plant were obtained.Conclusion] The 3 characters of fructification number per fruit branch,single fruit weight and grain number per sail were the key factors influencing the yield per plant of Chinese chestnut.