文献类型：期刊文献

中文题名：七叶树种间和种内生长与形态差异

英文题名：Growth and Morphology Differences between and within Aesculus Species

作者：李永胜[1] 周志春[2] 金国庆[2] 江志标[3] 饶龙兵[2] 陈仲良[3] 余雪琪[3]

第一作者：李永胜

机构：[1]浙江省林业种苗管理总站;[2]中国林业科学研究院亚热带林业研究所;[3]浙江省桐庐县林业局

年份：2007

卷号：20

期号：4

起止页码：581-585

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家林业局"948"项目"药用七叶树优良种质资源和栽培技术引进"(2001-11);浙江省科技厅科研项目"药用七叶树种质资源开发和特色基地营建技术研究"(2003C3248);浙江省自然科学基金项目"七叶树属植物遗传差异及药效成分变异研究"(302085)

语种：中文

中文关键词：七叶树;种源;家系;生长;形态;遗传变异

外文关键词：Aesculus ; porvenance ; family ; growth ; morphology ; genetic variation

分类号：S722.7

摘要：Two genetic trails including eight seed sources of three native Aesculus species and twenty plus tree families of A.chinensis var.chekiangensis from Tonglu of Zhejiang were used to explore the genetic variation between and within Aesculus species for seed,growth and morphology traits at seedling and young stage.The results demonstrated that there were significant differences for growth and morphology characteristics among eight provenances of three Aesculus species.Among three Aesculus species,seeds of A.wilsonii were the biggest,seeds of A.chinensis the middle and seeds of A.chinensis var.chekiangensis the least.Seed sources of A.wilsonii with bigger seeds were generally from the southern and southwestern areas.It was found that the species/provenances from the seed sources with big seeds possessed greater seedling growth,extensive tap and lateral root system,and larger leaves.Seedling test result of species/provenance growth was not used to predicted the growth performance at young stage,because of marked seed maternal effect.A.chinensis var.chekiangensis from Lin’an of Zhejiang with least seeds have best growth performance,and while A.wilsonii from Mabian of Sichuan with biggest seeds exhibited mediate growth performance at age two.Moreover,there existed rich family variation for growth and morphology of seedling and young trees in A.chinensis var.chekiangensis.Seedling growth of families was significantly and positively related to their young tree growth.Early selection of growth traits could conduct at seedling stage.
Two genetic trails including eight seed sources of three native Aesculus species and twenty plus tree families of A. chinensis var. chekiangensis from Tonglu of Zhejiang were used to explore the genetic variation between and within Aesculus species for seed, growth and morphology traits at seedling and young stage. The results demonstrated that there were significant differences for growth and morphology characteristics among eight provenances of three Aesculus species. Among three Aesculus species, seeds of A. wilsonii were the biggest, seeds of A. chinensis the middle and seeds of A. chinensis var. chekiangensis the least. Seed sources of A. wilsonii with bigger seeds were generally from the southern and southwestern areas. It was found that the species/provenances from the seed sources with big seeds possessed greater seedling growth, extensive tap and lateral root system, and larger leaves. Seedling test result of species/provenance growth was not used to predicted the growth performance at young stage, because of marked seed maternal effect. A. chinensis var. chekiangensis from Linen of Zhejiang with least seeds have best growth performance, and while A. wilsonii from Mabian of Sichuan with biggest seeds exhibited mediate growth performance at age two. Moreover, there existed rich family variation for growth and morphology of seedling and young trees in A. chinensis var. chekiangensis. Seedling growth of families was significantly and positively related to their young tree growth. Early selection of growth traits could conduct at seedling stage.