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Position: Home > Articles > Type Classification of Magnolia grandiflora L. Journal of Henan Agricultural Sciences 2013,42 (2) 120-122

广玉兰类型的初步划分

作  者:
刘艳萍;朱延林;康向阳;晏增;马永涛
单  位:
北京林业大学;河南省林业科学研究院
关键词:
广玉兰;聚类分析;类型划分
摘  要:
利用R型聚类分析法对广玉兰树冠形状、叶片长度、叶片宽度、叶片厚度、叶柄长度、叶片颜色(色光值)、叶片背面被毛等性状进行分析.结果表明,树冠形状、叶片形状和叶片背面被毛可作为广玉兰引种栽培类型划分的指标,并将广玉兰划分为狭绿叶少毛紧凑型、椭圆绿叶少毛稍开张型、狭绿叶白毛稍开张型、圆黄叶锈毛开张型、小绿叶锈毛疏冠型、圆绿叶密锈毛密冠型等6个类型,其中圆绿叶密锈毛密冠型在广玉兰群体中所占比列最大,是广玉兰引种栽培中最常见的一个类型.
译  名:
Type Classification of Magnolia grandiflora L.
单  位:
Henan Academy of Forestry,Zhengzhou 450008,China%Beijing Forestry University,Beijing 100083,China
关键词:
Magnolia grandiflora L.%cluster analysis%type classification
摘  要:
In order to make better use of Magnolia grandiflora L.,R cluster analysis was used to analyze the crown shape,leaf length,leaf width,leaf thickness,petiole length,leaf color(color value),and leaf blade abaxial hair of Magnolia grandiflora L.The results showed that the crown shape,leaf characters and leaf blade abaxial hair were chosen as the main indices of cultivation types of Magnolia grandiflora L.The types of Magnolia grandiflora L.were divided into six types,i.e.,the narrow green leaves-less hair-compact crown type,the elliptical green leaves-less hair-slightly opening crown type,the narrow green leaves-white hair-slightly opening crown type,the round yellow leaves-rust hair-opened crown type,the small green leaves-rust hair-sparse crown type,and the round green leaves-densely rust hair-dense crown type.Of these,the round green leaves-densely rust hair-dense crown type occupied the largest proportion in the populations,and was also the most common type among the cultivation types of Magnolia grandiflora L.

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