文献类型：期刊文献

中文题名：柚木嫩枝扦插生根过程中营养物质的研究

英文题名：Study on nutrient contents of Tectona grandis Linn. shoot in the course of soft-wood cutting propagation

作者：曾炳山[1] 黄永芳[2] 杨懋勋[2,3] 周锦平[2]

第一作者：曾炳山

机构：[1]中国林业科学研究院热带林业研究所;[2]华南农业大学林学院;[3]中山火炬职业技术学院生物医药系

年份：2013

期号：2

起止页码：1-4

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金：农业科技成果转化资金项目"柚木组培苗微扦插移植及优良无性系示范"(2011GB24320001)

语种：中文

中文关键词：柚木;嫩枝扦插;可溶性糖;全氮;C;N比

外文关键词：Tectona grandis L.f.; softwood cutting propagation; soluble sugar; total nitrogen; ratio of C/N

分类号：S723.1

摘要：柚木Tectona grandis L.f.为马鞭草科柚木属落叶或半落叶高大乔木。试验以4年生柚木采穗圃的当年生半木质化嫩枝为材料,在7月下旬,采用不同浓度IBA粉剂处理插穗,进行扦插试验。研究生根过程中插穗可溶性糖、全氮和C/N比等营养物质的变化,探讨扦插生根与营养物质的关系。结果表明:柚木扦插生根与可溶性糖含量、全氮含量、碳氮比都有一定的关系;与对照相比,500 mg kg-1IBA使插穗内可溶性糖含量显著增加并使插穗内全氮含量保持在一定水平,这利于生根。
Tectona grandis L.f.is a kind of defoliated or half-defoliated tall arbor,belonging to Verbenaceae tectona.In the softwood cuttings propagation experiments,the half-lignified twigs of 4-year-old T.grandis were treated with exogenesis hormones of IBA powder in different concentrations in the last ten-day of July.The variations of nutrient contents,such as soluble sugar,total nitrogen and ratio of C/N,in the cutting woods rooting process were studied in order to find the relationship between cutting-wood rooting and nutrient contents.The results show that the rooting rate of T.grandis were related with soluble sugar content,total nitrogen content and ratio of C/N;IBA powder of 500 mg kg-1made the soluble sugar in the shoots increase obviously and kept total nitrogen at constant level.