多效唑对粗皮桉的矮化作用研究  

The Dwarfing Effects of Paclobutrazol on Eucalyptus pellita

作　　者：潘松海 齐杰 卢万鸿 何普林 王楚彪 林彦 罗建中 PAN Songhai;QI Jie;LU Wanhong;HE Pulin;WANG Chubiao;LIN Yan;LUO Jianzhong(China Forestry Group Leizhou Forestry Bureau Co.,Ltd.,Zhanjiang 524043,Guangdong,China;China Eucalypt Research Centre,Zhanjiang 524022,Guangdong,China)

机构地区：[1]中林集团雷州林业局有限公司,广东湛江524043 [2]国家林业和草原局桉树研究开发中心,广东湛江524022

出　　处：《桉树科技》2020年第4期13-18,共6页Eucalypt Science & Technology

基　　金：中国林业科学研究院基本科研业务费专项资助(CAFYBB2017ZA001-5);广西创新驱动发展专项资金项目(桂科AA17204087-3);国家“十三五”重点研发计划项目课题(2016YFD0600501)。

摘　　要：以粗皮桉的26个家系为研究材料、4个杂交种无性系为对照,用3种不同剂量多效唑进行处理,以研究多效唑对粗皮桉的矮化作用特点。结果表明:施用多效唑对粗皮桉、桉树杂交种均产生了显著的矮化作用(P<0.05),但3种剂量间的矮化作用无显著差异;施用多效唑1个月后即对植株产生显著的矮化效果,但到4个月时矮化效果不再显著;粗皮桉比杂交种无性系易于矮化,多效唑处理会显著降低树种内的树高差异,促使树种内的树高更均一。Using 26 families of Eucalyptus pellita as genetic material,with 4 eucalypt hybrid clones as control,three different doses of paclobutrazol were used to study the dwarf effects on E.pellita.The results showed that there were significant(P<0.05)dwarfing effect on both E.pellita and eucalypt hybirds after the paclobutrazol application,and the effects difference between the 3 treatments became not significant.The significant dwarfing effects were observed 1 month after the application,But the effects were not significant after 4 months of the application.The height were better dwarfed on E.pellita than on the hybrid clones.In both E.pellita and hybrids clones,the height between families/clones were not significant any more or less significant after the paclobutrazol treatments.

关 键 词：多效唑 矮化 粗皮桉 树高 

分 类 号：S722.3[农业科学—林木遗传育种]