乌桕富根苗及育苗密度研究  

The Study on the Rich Root Seedling and Seedling Density of Sapium sebiferum

作　　者：麻泽虎 吴际友[2] 程勇[2] 魏志恒 张珉[2] 陈明皋[2] 李华军 黄小飞[2] 吕勇 吴其军 Ma Zehu;Wu Jiyou;Cheng Yong;Wei Zhiheng;Zhang Ming;Chen Minggao;Li Huajun;Huang Xiaofei;Lv Yong;Wu Qijun(Dingcheng County Forestry Bureau in Hunan,Dingcheng 4151000;Hunan Academy of Forestry,Changsha 410004;Huangfengqiao State-owned forest farm in Youxian,Youxian 412307;Guanda Agriculture and Forestry Technology Co.,Ltd.in Hunan,Changsha 410004)

机构地区：[1]湖南省常德市鼎城区林业局,鼎城415100 [2]湖南省林业科学院,长沙410004 [3]攸县黄丰桥国有林场,攸县412307 [4]湖南冠达农林科技有限公司,长沙410004

出　　处：《湖北林业科技》2021年第1期10-12,28,共4页Hubei Forestry Science and Technology

基　　金：湖南省重点研发计划“绿色宜居乡村生态景观营造技术研究与示范”(2018NK2051)。

摘　　要：对1 a生乌桕苗木开展了GGR6促根处理及苗木培育密度试验。结果表明:GGR6处理能显著增加1 a生苗木Ⅰ级侧根的数量,形成乌桕富根苗;随着单位面积苗木株数的增加,苗木的苗高生长增加但地径生长减小。根据试验结果并结合生产实践,乌桕合适的育苗密度为40株·m^(-2);因此,适宜的GGR6处理浓度和适当的育苗密度是培育优质乌桕苗的关键。The GGR6 root-promoting treatment and seedling cultivation density experiment were carried out on the 1-year-old tree seedlings of Sapium sebiferum.The results showed that:GGR6 treatment can significantly increase the number of grade I lateral roots of 1-year-old seedlings,forming T.tallow root-rich seedlings;with the increase of the number of seedlings per unit area,the seedling height growth of the seedlings increases but the ground diameter growth decreases and the seedling quality decreases.In combination with production practice,the suitable seedling density of Tallow tree is 40 plants·m^(-2);therefore,the appropriate GGR6 treatment concentration and the appropriate number of seedlings per unit area are the key to cultivating strong seedlings of Tallow tree with rich roots.

关 键 词：乌桕 富根苗 育苗密度 

分 类 号：S664.1[农业科学—果树学]