东北红豆杉在栽培条件下的形态变异  

Morphological Variation of Taxus cuspidata Under Cultivation Conditions

作　　者：马艳彤 张朕 张彦文 赵骥民[1] MA Yan-tong;ZHANG Zhen;ZHANG Yan-wen;ZHAO Ji-min(School of Landscape Architecture,Changchun University,Changchun 130000,China;Agricultural College,Eastern Liaoning University,Dandong 118003,China)

机构地区：[1]长春大学园林学院,吉林长春130000 [2]辽东学院农学院,辽宁丹东118003

出　　处：《长春师范大学学报》2021年第2期113-117,共5页Journal of Changchun Normal University

基　　金：国家自然科学基金项目“蓝莓开花过程中花蜜呈现策略与花粉散布模式对传粉昆虫的适应性选择研究”(31872048)。

摘　　要：东北红豆杉在上百年的栽培过程中积累了许多变异类型,但一直缺乏必要的分类研究。本文对目前园林中栽培的东北红豆杉及各变异类型(民间约定品种)的形态特征进行调查和对比分析,结果表明,东北红豆杉可以分成三大类或群,即野生植株、“日本红豆杉”和“韩杉”,每一群中都有不同的变异类型,主要体现在叶片长度、果实大小和颜色、叶片密度和分枝系数、叶片颜色等方面。依据这些数量性状的变异程度,可以为东北红豆杉品种审定提供数据支撑。Taxus cuspidata has accumulated many variation types in the past hundred years,but there has been a lack of necessary taxonomic research.In this paper,the morphological characteristics of Taxus cuspidata cultivated in gardens and the variation types(folk agreed varieties)were investigated and compared.The results showed that Taxus cuspidata could be divided into three major types or groups,namely“Northeast Yew”,“Japanese Yew”and“Korean Yew”.Each group had different variation types,mainly reflected in leaf length,fruit size and color,leaf density and branching coefficient,leaf color,etc.According to the variation degree of these quantitative characters,it can provide data support for variety approval of Taxus cuspidata.

关 键 词：东北红豆杉 形态变异 叶密度 分支系数 

分 类 号：S791.49[农业科学—林木遗传育种]