森林与环境学报2018，Vol.38Issue(3)：309-317,9.DOI:10.13324/j.cnki.jfcf.2018.03.009
湖北红椿天然居群表型变异地理趋势面研究
Geographic trend surface analysis of phenotypic variance of Toona ciliata in natural populations of Hubei
摘要
Abstract
The research objective was to reveal the correlation between phenotypic variance trend of Toona ciliata leaf,fruit and seed in the natural populations of Hubei Province.Mean value,standard deviation,coefficient of variation and variation range of phenotypic characters of T.ciliata leaf,fruit and seed were analyzed,and geographic trend surface fitting equations for such phenotypic variances were also established.The result indicated that there were significant differences of 10 leaf phenotypic traits and 12 phenotypic traits of fruit and seed in different natural populations;geographic trend surface analysis showed that the fitting degree of quadratic equation of trend surface of leaf apex angle was 88.13％;the fitting degree of quartic equation of trend surface of fruit length and seed length were 99.77％and 99.52％,while the fitting degree of quadratic equation of trend surface of fruit size index,individual fruit weight,individual seed weight and seed size index were 93.40％,95.34％,95.00％and 94.46％,respectively;F value test of the trend surface fitting equations reached significant difference; the fitting degree of trend surface equations of the rest phenotypic traits were insignificant.The correlation analysis showed that the correlation between longitude and most phenotypic traits were significantly related;frost-free period and annual average temperature were highly relative with the phenotypic traits;the correlation between latitude and the phenotypic traits,and that between altitude and the phenotypic traits were relatively low; leaf apex angle,fruit length,single fruit weight and single seed weight were the important and key phenotypic traits.The research revealed that the phenotypic variation of T.ciliata leaf,fruit and seed presented certain continuity,and that there was a significant geographical variation tendency.关键词
湖北/红椿/天然居群/表型性状/地理趋势面/相关分析Key words
Hubei Province/Toona ciliata Roem./natural population/phenotypic trait/geographic trend surface/correlation analysis分类
农业科技引用本文复制引用
汪洋,田玉娥,甘小燕,宋菲..湖北红椿天然居群表型变异地理趋势面研究[J].森林与环境学报,2018,38(3):309-317,9.基金项目
湖北省科技厅公益性研究项目(40 2012DBA40001) （40 2012DBA40001）
湖北省教育厅科研项目(B20160555). （B20160555）
