笋期截梢对花叶唐竹株型的影响研究  

A study of the effect of bamboo shoot truncation on morphology of Sinobambusa tootssik f.luteoloalbostriata

作　　者：曾庆南[1] 余林[1] 王海霞[1] 陈小军 Zeng Qingnan;Yu Lin;Wang Haixia;Chen Xiaojun(Jiangxi Academy of Forestry,Nanchang Jiangxi 330013,China;Taihe Sen Lian Bamboo Nursery Co.,Ltd.,Ji’an Jiangxi 343700,China)

机构地区：[1]江西省林业科学院,江西南昌330013 [2]泰和森联竹类苗木有限公司,江西吉安343700

出　　处：《南方林业科学》2020年第5期52-56,共5页South China Forestry Science

基　　金：江西省林业科学院社会公益类研究项目(项目编号:2017510901)。

摘　　要：通过笋期截梢可以达到调控花叶唐竹株型的目标,在笋高101~150 cm时截顶10 cm株型调控效果最好。笋期截梢对花叶唐竹的竹高有明显的矮化效果,笋高101~150 cm时截顶10 cm和15 cm的立竹高度变化幅度较小,相对均匀竹株比例较高。截梢长度与竹高呈负相关,然而截梢长度过短效果不明显,截梢长度过长则易造成退笋趋势。花叶唐竹在新竹高生长中期的快速生长阶段截梢,会促进枝芽向下部节萌发枝;在新竹高生长前期截梢,会提高花叶唐竹的枝下高。花叶唐竹的枝下高影响着立竹的竹冠丰满度,枝下高越低,有枝盘数所占的比例就越大,叶片数量越多,立竹的竹冠丰满度越好。Bamboo shoot truncation can achieve the purpose of the morphology regulation of Sinobambusa tootssik f.luteoloalbostriata,the best results were obtained when the bamboo shoot height was 101~150 cm and truncated 10 cm.The truncated bamboo shoot had an obvious dwarfing effect on the bamboo height of S.tootssik f.luteoloalbostriata.When the bamboo shoot was 101~150 cm high,the height of the vertical bamboo shoot with truncated 10 cm and 15 cm treatment varied slightly,and the proportion of the uniform of bamboo height was higher.The truncated bamboo shoot length was negatively correlated with the height of bamboo,but the truncated bamboo shoot length had no obvious effect on the short shoot,and the truncated banboo shoot length will cause the trend of degraded bamboo shoot on the long shoot.In the middle period of high growth,the truncated bamboo shoot will promote the buds germinated toward the lower nodes of S.tootssik f.luteoloalbostriata.In the early high growth period,the truncated bamboo shoot will increase the under branch height of S.tootssik f.luteoloalbostriata.The under branch height will effect fullness of canopy of S.tootssik f.luteoloalbostriata,the lower the under branch height,the greater the proportion of the number of branches and plates,and the more leaves,the better the fullness of canopy.

关 键 词：花叶唐竹 笋期 截梢 矮化 

分 类 号：S605.1[农业科学—园艺学] S795.4