野生与栽培红河橙叶表型性状比较研究

Comparative Study on Phenotypic Traits of Citrus hongheensis Leaves in Wild and Cultivated

对红河橙野生居群进行调查,研究红河橙栽培和野生居群叶表型多样性,采用方差分析等方法对红河橙13个叶表型性状在群体内和群体间的变异进行探讨。结果表明:栽培居群有8个叶表型平均值大于野生居群居群,而野生居群有5个叶表型平均值稍大于栽培居群;居群内各个叶表型的变异程度不同,同一表型在不同居群间的变异程度也不同;翼叶长/叶总长在2个居群中的变异均最小;除翼叶宽度这个表型外,其余12个表型的变异系数均是栽培居群大于野生居群;大部分叶表型在居群间的差异极显著或显著,仅翼叶长/翼叶宽、本叶长/本叶宽、本叶宽/翼叶宽3个性状在居群间的差异不显著。

The wild populations of Citrus hongheensis were investigated to study the diversity of leaf phenotypes in cultivated and wild populations.The variance of 13 leaf morphological characters in the population and between the cultivated and wild populations were discussed by the variance analysis and other methods.The results showed that the average values of 8 leaf characters in cultivated were greater than these in wild population,while 5 leaf characters in wild population were slightly greater than these in cultivated population.The variance degree of all leaf characters in the same population were different and the variance degree of the same leaf character in 2 populations was also different.The coefficients of variance of LWL^TLL was minimal in 2 populations.The coefficients of variance of other 12 characters(except WWL)in cultivated population were greater than these in wild population.For most leaf characters,the differences between populations were extremely significant or significant,though the difference of LWL/WWL,LL/WL and WL/WWL were not significant.