文献类型：期刊文献

中文题名：乐昌含笑不同种源幼林生长性状变异和种源选择

英文题名：A Study on Variation of Growth Traits in Young Michelia chapensis Forest and Provenances Selection

作者：邵文豪[1] 姜景民[1] 栾启福[1] 刘昭息[1]

第一作者：邵文豪

机构：[1]中国林业科学研究院亚热带林业研究所

年份：2011

卷号：33

期号：4

起止页码：701-706

中文期刊名：江西农业大学学报

外文期刊名：Acta Agriculturae Universitatis Jiangxiensis

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家科技基础条件平台工作(2006DKA21003-09);浙江省重大科技攻关项目(2006C12059-3)

语种：中文

中文关键词：乐昌含笑;幼林;生长性状;种源选择

外文关键词：Michelia chapensis; young forest; growth traits; provenance selection

分类号：Q949.747.105

摘要：对11个乐昌含笑种源在浙江省余杭区长乐林场进行造林试验,通过对3年生试验林的调查观测,结果表明,不同种源乐昌含笑在浙江省造林幼林保存率相差较大,树高、地径性状在各种源间差异极显著,均具有很高的广义遗传力,且幼林表现呈较为明显的地理分化趋势,西部、南岭西南部种源保存率不高,生长相对缓慢,但其中亦有生长较好家系,而南岭以北的中东部诸种源造林保存率较高,生长亦较好,应是适宜的种源材料。立地条件对乐昌含笑造林保存率影响较大,但幼林生长量在立地间差异不显著,可能是随着幼林生长,林分趋于郁闭,水肥条件改善,使得立地对生长的影响趋弱。
11 provenances of Michelia chapensis were tested in Changle Forest Farm in Zhejiang Province.The investigation into the 3-year-old experimental forest showed that the preserving rates among the provenances were very different.Both the tree height and ground diameter differences were very significant among the provenances,also they all had high broad heritability.The preserving rates showed an obvious geographical differentiation trend.The provenances from Western China and Southwest of Nanling Mountain were of low preserving rates and grew slowly.However,those from mid-eastern China had high preserving rates,and they grew well,then these provenances should be suitable materials.Site conditions had important influence on forestation preserving rates of Michelia chapensis,but the growth differences among sites were not significant.Maybe with the young forest growing and canopy density increasing,water and fertilizer conditions improved,which decreased the influence of site conditions for growth.