降香黄檀幼苗年生长节律研究  

Study on Growth Rhythm of Dalbergia odorifera Seedlings

作　　者：吴国欣[1,2] 王凌晖[2] 俞建妹[2] 刘运华 张明慧 梁惠萍[2] 

机构地区：[1]广西林业勘测设计院,广西南宁530011 [2]广西大学林学院,广西南宁530005 [3]广西国营高峰林场,广西南宁530001 [4]广西国营派阳山林场,广西宁明532500

出　　处：《浙江林业科技》2010年第3期56-60,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：广西"十一五"林业科学研究项目(林科字〔2007〕第23号);广西大学博士启动基金项目

摘　　要：研究了降香黄檀(Dalbergia odorifera)幼苗的年生长规律,结果表明,降香黄檀苗木生长进程表现出明显的"慢一快一慢"的"S"型曲线,且具有明显的阶段性;一年中,苗木的高生长有3次生长高峰,地径生长有2次生长高峰。依据降香黄檀幼苗地上部分生长特点,可以将苗木的生长过程划分为4个生长时期:出苗期、生长初期、生长盛期、生长后期。生长盛期约118 d,高生长量最大,占整个高生长量的64.77%。Study was carried out on growth rhythm of precious tree species of Dalbergia odorifera seedlings in Guangxi Zhuang Autonomous Region.The result showed that the annual growth rhythm of seedling was shaped of ＂S＂ curve,and had obvious phase.Within one year,there were respectively three and two peaks of height and basal diameter growth.According to above-ground part growth characteristics of the plant,seedling growth could be divided into four stages： emergence,initial growth,fast growth and later growth phase.Fast growth phase had 118 days from the first growth peak to the last growth peak with the height increment of 64.77% of the total one.

关 键 词：降香黄檀 幼苗 生长节律 

分 类 号：S792.28[农业科学—林木遗传育种]