文献类型：期刊文献

中文题名：西南桦组培苗培育的轻基质筛选

英文题名：Light Media Selection for Growing Micro-propagated Seedlings of Betula alnoides

作者：贾宏炎[1] 曾杰[2] 黎明[1] 蒙彩兰[1] 郭文福[1]

第一作者：贾宏炎

机构：[1]中国林业科学研究院热带林业实验中心;[2]中国林业科学研究院热带林业研究所

年份：2012

卷号：25

期号：2

起止页码：241-245

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2011】；CSCD:【CSCD2011_2012】；

基金："十一五"国家科技支撑专题"西南桦用材林高效培育技术"(2006BAD24B0902)

语种：中文

中文关键词：西南桦;轻基质;无性系;组培苗

外文关键词：Betula alnoides; light growing media; clone; micro-propagated seedling

分类号：S723.1

摘要：西南桦（Betula alnoides Buch.-Ham.ex D.Don）是我国热带、南亚热带地区的一个乡土珍贵用材树种,其适应性强、生长迅速、材质优良,深受林农、私营投资商、林业企事业单位的喜爱,已在该地区广为栽培[1],近10余年来推广面积达8万hm2。由于采用实生苗造林出现林分参差不齐、
Light media selection trial was conducted for cultivating micro-propagated seedlings of Betula alnoides.It was indicated that the media,clones and their interactions had significant（P0.05）or extremely significant（P0.01） influences on survival rate and majority of growth traits of the seedlings,but the effects of differences of above-ground biomass and their interactions on ground diameter were not significant（P0.05）.The three light media were remarkably better than soil for the growth of B.alnoides seedlings.The flexibilities of five clones to these light media were also quite different,for example,the clone B5 adapted to all the media.As a whole,the medium with 25 percent of pine skin and 75 percent of carbonized sawdust was the best for cultivating micro-propagated seedlings of B.alnoides,and was recommended to be used in practice.