几个影响储良龙眼果实大小的因素的相关性分析

Analysis of Correlation among Several Influences of Affecting "Chu-liang" Longan [Euphoria longan(Lour.) Steud.] Fruit Size

[目的]探讨几个影响储良龙眼[Euphoria longan(Lour.)Steud.]果实大小的因素的相关性。[方法]采取单株小区,6次重复,对海南6年生储良龙眼的单果重、单穗果重、果枝粗度、叶蓬长度、叶蓬宽度、叶重、叶片数和果实个数等性状指标进行观测,并对其进行相关回归分析和多元逐步回归分析。[结果]叶片数和果实个数对单果重的偏回归系数均达到极显著,果实个数对单果重为负效应;果枝粗度、叶蓬长度、叶蓬宽度和叶重等对单果重的偏回归系数不显著;果实个数和单果重对每穗果重的偏回归系数均达到极显著;果枝粗度等对每穗果重的偏回归系数不显著。[结论]该研究可以为储良龙眼生产中疏花疏果确定留果量提供理论依据。

[Objective] The aim was to study the correlation among several influences of affecting ＂Chu-liang＂ Longgan fruits.[Method] The single fruit weight,fruit weight per fruiting sucker,fruit sucker diameter,leaf-umbrella length,leaf-umbrella width,leaf weight,the number of leaves and the number of fruits and so on of Hainan 6 year-old ＇Chuliang＇ longan plants,repeating 6 times,were observed,and then analyzed them by correlation regression analysis and mutivariate gradually regression analysis.[Result] The partial regression coefficients of the number of leaves（positive effect） and the number of fruits（negative effect） to single fruit weight were most significant,but there was not significance for the other indices.The fruit number and single fruit weight were extremely significantly correlated with the fruit weight per fruiting sucker.The fruit sucker diameter was no significant correlated with the fruit weight per fruiting sucker.[Conclusion] The study provides a theoretic basis for blossom and fruit thinning during the production of ＂Chu-liang＂ longan.