热带珍贵树种羯布罗香苗木质量分级标准  

Seedling Quality Grading Technique of Valuable Tree Species in the Tropics of Dipterocarpus turbinatus

作　　者：邱琼 杨德军 张快富 钟萍 李金材 QIU Qiong;YANG Dejun;ZHANG Kuaifu;ZHONG Ping;LI Jingcai(Institute of Tropical Forestry,Yunnan Academy of Forestry and Grassland Science,Puwen Yunnan 666102;Pu'er Forestry and Grassland Science Research Institute,Pu'er Yunnan 665000)

机构地区：[1]云南省林业和草原科学院热带林业研究所,云南普文666102 [2]普洱市林业和草原科学研究所,云南普洱665000

出　　处：《山东林业科技》2022年第4期48-52,共5页Journal of Shandong Forestry Science and Technology

基　　金：西双版纳州珍贵用材树种人工林高效培育试验、示范基地建设;云南省重点研发项目(2018BB007)。

摘　　要：以西双版纳州普文苗圃所培育的1年生羯布罗香容器苗为对象,随机抽样50株样苗,测定地径、苗高、冠幅、主根长、侧根数、全株鲜重、地上部分鲜重、地下部分鲜重、全株干重、地上部份干重、地下部份干重、高径比11个指标并进行相关分析,确定以地径和苗高作为苗木质量分级指标,采用逐步聚类分析方法,结果表明:羯布罗香1年生容器苗木可分为3级,即Ⅰ级苗:D≥0.58 cm,H≥42.38 cm;Ⅱ级苗:0.58 cm>D≥0.47 cm,42.38>H≥25.53 cm;Ⅲ级苗:D<0.47 cm,H<25.53 cm。Taking the 1-year-old Dipterocarpus turbinatus container seedlings cultivated by Puwen Nursery in Xishuangbanna Prefecture as the object,50 seedlings were randomly sampled,and the diameter,seedling height,crown width,main root length,side root number,fresh weight of the whole plant,fresh weight of the aboveground part,fresh weight of the underground part,dry weight of the whole plant,dry weight of the aboveground part,dry weight of the underground part,and high diameter ratio of 11 indicators were carried out and the relevant analysis was carried out,and the ground diameter and seedling height were determined as the quality grading index of the seedlings,and the gradual clustering analysis method was adopted,and the results showed that the seedlings of the 1-year container of Dipterocarpus turbinatus were divided into 3 levels.That is,grade Ⅰ seedlings:D≥0.58 cm,H≥42.38 cm;grade Ⅱ seedlings:0.58 cm≥D≥0.47 cm,42.38>H≥25.53 cm;III.grade seedlings:D<0.47 cm,H<25.53 cm.

关 键 词：羯布罗香 苗木质量 逐步聚类 分级标准 

分 类 号：S792.99[农业科学—林木遗传育种]