黑格优树子代林断根萌蘗能力分析  

Analysis of the Root Sprout Ability of the Progeny of Albizia odoratissima Superior Tree

作　　者：莫明锋 杨章旗[3] 董琼[1] 唐生森 覃夏云 陈代云 MO Mingfeng;YANG Zhangqi;DONG Qiong;TANG Shengsen;QIN Xiayun;CHEN Daiyun(Southwest Forestry University,Kunming,Yunnan 650224,China;Baise Forestry Research Institute,Baise,Guangxi 533000,China;Guangxi Academy of Forestry Science,Nanning,Guangxi 530002,China)

机构地区：[1]西南林业大学,云南昆明650224 [2]百色市林业科学研究所,广西百色533000 [3]广西壮族自治区林业科学研究院,广西南宁530002

出　　处：《热带农业科学》2024年第11期44-49,共6页Chinese Journal of Tropical Agriculture

基　　金：广西科技基地和人才专项(No.桂AD19254004);广西八桂学者项目(No.2019A026);广西创新驱动专项(No.#AA17204087-1)。

摘　　要：为了解黑格根系萌芽生长能力和掌握影响萌芽生长关键因子,对栽植3年的黑格优树子代林分随机抽取12个单株进行开沟断根,调查萌蘗生长情况。结果表明:黑格萌出新芽需要5周时间,第6~9周为主要萌芽期,断根10周后萌芽量达到峰值,平均萌芽量为1.8株,根系最大萌芽量为6株;30周时,萌芽平均地径可达8.9 mm,平均苗高可达114.9 cm,萌芽保存率为70.4%,说明黑格萌芽能力强且芽苗生长迅速;苗高、苗地径与母株的断根直径呈极显著正相关(p<0.01);萌芽量、苗高、苗地径均与湿度成极显著正相关(p<0.01)。断根直径、湿度是萌芽相关性较强因素。To understand the root sprouting and growth ability of superior sprout trees planted for three years,12 individual trees were randomly selected for trenching and root cutting to investigate root sprout growth.The results revealed that it took five weeks for Albizia odoratissima to sprout new buds.The main sprouting period was from six to nine weeks and sprouting reached its peak 10 weeks after cut root.The average number of sprouts was 1.8,and the maximum number of sprouts was 6.At 30 weeks,the average diameter of sprouting was 8.9 mm,the average seedling height was 114.9 cm,and the sprouting preservation rate was 70.4%,indicating that A.odoratissima had a strong sprouting ability and rapid growth of seedlings.Seedling height and seedling plot diameter were positively correlated with the root diameter of the mother plant(p<0.01).Sprouting quantity,seedling height,and seedling field diameter were significantly positively correlated with humidity(p<0.01),and root diameter and humidity were the most strongly correlated factors.

关 键 词：黑格 断根处理 萌蘗力 相关性 

分 类 号：S792.99[农业科学—林木遗传育种]