应用32P对马尾松、黎蒴栲种间关系的研究  

Study on Species Relationship between Pinus massoniana and Castanopsis fissa Using 32P

作　　者：陈红跃[1] 徐英宝[1] 

机构地区：[1]广州华南农业大学

出　　处：《林业科学研究》1995年第1期7-10,共4页Forest Research

基　　金：林业部"七五"攻关课题

摘　　要：应用３２Ｐ分别对马尾松、黎蒴栲混交林及马尾松纯林树种根系的吸收能力进行研究，结果表明：不同林分结构中树种对３２Ｐ的吸收能力有差异，大小顺序为：混交林黎蒴栲＞混交林马尾松＞纯林马尾松。应用３２Ｐ研究马尾松、黎蒴栲的异株克生作用，结果表明：（１）黎蒴栲的根及其它器官组成的７种试验液对马尾松苗叶子的３２Ｐ水平有提高作用；马尾松的枝、根等５种试验液则对黎蒴栲苗叶子的３２Ｐ水平也有提高作用。（２）两个树种地上部分的相互作用使马尾松和黎蒴栲苗叶子的３２Ｐ水平分别比其对照组提高４１．１％和５５．８％。P was used to study the absorptivity of the roots from Pinus massoniana andCastanopsis fissa mixed forest and the pure forest of P. massoniana. It showed that the orderof the ability to absorb 32P was C.fissa > mixed P. massoniana > pure P. massoniana. Theresults of allelopathy between these two species showed:(1)seven kinds of secretions pro-duced by the root and other organs of C.fissa improved the 32P level of leaves from seedlingsof P. massoniana. Five kinds of secretions produced by the branch,root and other organs ofP. massoniana improved the 32P level of leaves from seedlings of C. fissa;(2)the interact ofthe parts above ground of P. massoniana and C. fissa increased the absorbing ability of 32Pfor 4l.1%and 55.8%respectively as compared to their controls.

关 键 词：马尾松 黎蒴栲 种间关系 

分 类 号：S791.248[农业科学—林木遗传育种]