摘要
榧树是我国重要的经济林树种。为掌握黟县榧树种质资源现状与动态,对种质资源进行有效保护和开发利用,采用实地调查、样方调查、标本采集、室内考果等研究方法,对黟县种质资源及分布特征进行全面系统的调查。结果表明:(1)黟县现有榧树资源面积2071.5 hm^(2),自然分布呈岛屿化、斑块状格局;(2)榧树种内性状变异复杂,不同单株间种子的单粒质量、种核单粒质量、出核率、核形指数等存在较大差异;(3)黟县地区保存有一些综合性状优良、品质达到或超过香榧的优株。
Torreya grandis is an important economic tree species in China.In order to know the actualities and dynamic change of the germplasm resources of the species in Yixian County for effective conservation,development and utilization,a comprehensive and systematic survey was made on the germplasm resources and distribution features in the county using such methods as field survey,specimen collection and indoor fruit examination.The results showed:1.the present distribution of Torreya grandis resources is an island and patchy pattern with a total area of 2071.5 hm^(2);2.there are complicated trait variations within the species,including significant differences in the single seed weight,single kernel weight,kernel rate and kernel shape index;3.there are some fine individual trees preserved in the county with fine integrated traits and quality equal to or better than those of Torreya grandis cv.merrillii.
作者
胡长贵
HU Changgui(Huangshan Institute of Forestry,Huangshan 245000,Anhui,China)
出处
《安徽林业科技》
2021年第5期32-35,共4页
Anhui Forestry Science and Technology
关键词
榧树
种质资源
调查
Torreya grandis
Germplasm resource
Survey
作者简介
胡长贵(1984-),男,高级工程师,主要从事林业科研和技术推广工作。E-mail:286732943@qq.com。
