药用植物昆明山海棠不同长度和着生部位插穗扦插繁殖试验  

Effects of Cuttings with Different Length and Different Inserted Position on Survival Rate and Aerial Fresh Weight in Tripterygium hypoglaucum

作　　者：余永富 余志彪 王兴祥 李宁 唐秀俊 王子明 潘红英 袁继林 

机构地区：[1]贵州雷公山国家级自然保护区管理局,贵州雷山557100 [2]黔东南州林业局,贵州凯里556000 [3]黔东南州林业勘查设计院,贵州凯里556000

出　　处：《贵州农业科学》2011年第3期179-181,共3页Guizhou Agricultural Sciences

基　　金：贵州省林业科研项目"雷公山昆明山海棠(粉背雷公藤)生态学特性及繁殖技术研究"(2005-03)

摘　　要：为了研究昆明山海棠扦插繁殖中插穗采集的适宜部位及最佳长度,进行了不同长度、不同着生部位插穗扦插试验。结果表明,枝条不同部位插穗对扦插成活率影响不显著;插穗长度对扦插成活率影响显著,10 cm为插穗的适宜长度;插穗长度、着生部位二因素对扦插苗木质量均无显著影响。昆明山海棠扦插苗高生长4月下旬至5月中旬、8月初至9月中旬出现生长高峰。根生长6月中下旬、9月中下旬出现生长高峰;1年生扦插苗木平均高30.2 cm,最高132.2 cm;地径0.4 cm,最大0.7 cm;枝茎重2.4 g,最高达20.8 g;平均每株根数5.4条,最多19条;平均根长14.6 cm,最长根达49 cm;平均粗根粗0.2 cm,最大根粗0.8 cm。The experiment was conducted to study the effects of cuttings with different length and different inserted position on survival rate and aerial fresh weight in Tripterygium hypoglaucum.The results showed that the cuttings with different inserted position had no significant effect on survival rate,the cutting length had the significant effect on survival rate,the optimum cutting length was 10 cm,the cutting length and inserted position both had no significant effect on aerial fresh weight.Two height growth peaks of the cutting saplings were from the last ten-day of April to the middle ten-day of May and from the first ten-day of August to the middle ten-day of September.Two root growth peaks of the cutting saplings were in the middle ten-day of June and the middle and last ten-day of September.The average and maximum sapling height,ground diameter,aerial fresh weight,root number/ plant,root length and root diameter of the cutting saplings with one year old was 30.2 cm and 132.2 cm,0.4 cm and 0.7 cm,2.4 g and 20.8 g,5.4 and 19,14.6 cm and 49 cm,0.2 cm and 0.8 cm respectively.

关 键 词：昆明山海棠 插穗 着生部位 长度 

分 类 号：S567.9[农业科学—中草药栽培]