大叶相思不同种植密度及修剪高度对穗条量及扦插生根的影响  

Effects of planting density and mowing height on cutting output and rooting rate of Acacia auriculiformis in cutting orchard

作　　者：黄烈健[1] 易敏[1] 

机构地区：[1]中国林业科学研究院热带林业研究所,广州广州510520

出　　处：《中南林业科技大学学报》2013年第8期10-13,37,共5页Journal of Central South University of Forestry & Technology

基　　金：国家"十二五"科技支撑计划项目(2012BAD01B0402)

摘　　要：通过对大叶相思采穗圃营建过程中不同种植密度、不同修剪高度对单株萌条数、穗条量及扦插生根率、根数、根长的影响进行研究,并在此基础上计算平均每hm2获得穗条量、扦插苗木数,提出了大叶相思采穗圃营建的最佳模式为20 cm×20 cm的种植密度、30 cm的修剪高度。为大叶相思通过采穗圃营建技术获得大量扦插苗木提供了理论依据。The effects of different planting densities and cutting heights of Acacia auriculiformi in the cutting orchard on the numbers per plant sprouting, production of cuttings, rooting rate, rooting numbers and rooting length were investigated, and based on the datum, the average cuttings yield and numbers of cuttings per 0.667 hm2 were calculated. It was concluded that the best model for cutting orchard was： planting density 20 cm X20 cm, cutting height 30 cm. The results provide a theoretical foundation for producing a large number of cutting seedlings through building a set of optimal cultivation pattern of cutting orchard.

关 键 词：大叶相思 采穗圃 种植密度 修剪高度 穗条量 生根率 

分 类 号：S722[农业科学—林木遗传育种]