萌条的根桩年龄对杨树扦插造林效果的影响  

Effects of different age of stump root of germination braches on growth of cuttage afforestation of poplar

作　　者：吴敏[1] 吴立勋[1] 汤玉喜[1] 李永进[1] 唐洁[1] 徐世凤[1] 林建新 黄范全 彭伦凯 

机构地区：[1]湖南省林业科学院,湖南长沙410004 [2]沅江市林业局,湖南益阳413005

出　　处：《湖南林业科技》2014年第2期35-39,共5页Hunan Forestry Science & Technology

基　　金：中央财政林业科技推广跨区域重点项目"杨树新无性系优质大径材培育技术示范推广"(〔2013〕TK56号)

摘　　要：采用湘林-90无性系杨1-5年生根桩萌条的1年生苗扦插造林，研究萌条的根桩年龄对杨树扦插造林效果的影响。结果表明：造林时的胸径、苗高、材积在不同年龄根桩的萌条苗阎均有显著差异，造林后的第1年、第4年，胸径、树高、材积在不同年龄根桩萌条苗的造林地间虽有差异，但差异均不显著。试验结果表明1-5年生根桩萌条的1年生苗都适宜扦插造林。Using the XL- 90 clone of poplar with the germination braehes of stump roots in one to five years old for affor- estation, the effect of different age of stump root on the growth of euttage afforestation of poplar was studied. The results showed that, there were significant differences in DBH, height and volume among different age of stmnp root of germina- tion braehes in afforestation. Although there were differences in DBH, height and volume in the first year and fourth year after afforestation, but there were no significant differences. It indicated that the one-year-old seedling with stump root of one to five years old were sfiitable for euttage afforestation.

关 键 词：根桩年龄 扦插造林 生长量 成活率 杨树 

分 类 号：S792.11[农业科学—林木遗传育种]