Cu,Zn等制剂对银杏容器苗的控根效果  

Effect of Cupreous and Zincous Preparations Treatment on the Root Control for Container Seedlings of Ginkgo biloba

作　　者：孙盛[1,2,3] 彭祚登[2] 董凤祥[1] 张炜 王秀琴 芮飞燕[2] 

机构地区：[1]中国林业科学研究院林业研究所国家林业局林木培育重点实验室,北京100091 [2]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [3]浙江省长兴县水口乡人民政府 [4]西北华北东北防护林建设局,银川750010

出　　处：《林业科学》2009年第7期156-160,共5页Scientia Silvae Sinicae

基　　金：国家948项目"林木;花卉容器育苗中的先进控根技术及材料引进"(2006-4-45)

摘　　要：Cupreous preparation and zincous preparation played a role in regulating root growth and development of Ginkgo biloba.The chemical root control preparations of Cu 100 g·L-1,ZnCO3120,160 g·L-1,Zn（AC）2 120,160 g·L-1 and DK 1 g·L-1 were able to inhibit the length of first classical latteral root,thereby they controled root growth.The first classical lateral roots treated with cupreous preparation and diquat preparation were shorter than that treated with zincious preparation,however the later produced seedlings with better quality.The length of first classical lateral root,the number of out-side roots with the diameter under 1 mm,and the number of root tips as diameter under 1 mm had linear correlations between them,thus the number of out-side roots could be a better index than the length of first classical lateral root for determining the effective of the root control.Cupreous preparation and zincous preparation played a role in regulating root growth and development of Ginkgo biloba. The chemical root control preparations of Cu 100 g·L^-1 , ZnCO3120,160g·L^-1 , Zn（ AC）2 120,160g·L^-1 and DK 1g·L^-1 were able to inhibit the length of first classical latteral root, thereby they controled root growth. The first classical lateral roots treated with cupreous preparation and diquat preparation were shorter than that treated with zincious preparation, however the later produced seedlings with better quality. The length of first classical lateral root, the number of out-side roots with the diameter under 1 mm, and the number of root tips as diameter under 1 mm had linear correlations between them, thus the number of out-side roots could be a better index than the length of first classical, lateral root for determining the effective of the root control.

关 键 词：银杏 容器苗 化学控根剂 Ⅰ级侧根平均长度 透根数 根尖数 

分 类 号：S723.1[农业科学—林木遗传育种]