茶树空中压条不定根原基发育影响因子研究  

Study on Factors Influencing Development of Adventitious Root Primordium of Tea after Air Layering

作　　者：李丰[1] 张丽霞[1] 

机构地区：[1]山东农业大学园艺科学与工程学院/作物生物学国家重点实验室,山东泰安271018

出　　处：《山东农业科学》2011年第9期41-44,共4页Shandong Agricultural Sciences

摘　　要：为了筛选出促使茶树茎段空中压条后发根的最佳技术方案,研究了成熟度、外施激素浓度、枝梢茎粗以及环割方式对根原基发育的影响。结果表明:选择生长健壮、茎粗为0.252～0.280 cm的当年生枝条,在黄绿色或青绿色茎段处进行传统环割,外用100 mg/L的ABT 1号生根粉处理,能有效缩短根原基发育周期。经过40～50 d,当茎段表皮隆起或出现白色根点时,即可剪离母体继续进行基质根系培养。In order to select the best technique for rooting of the girdled tea branches, the effects of maturation degree, exogenous hormones concentration, stem diameter and girdling mode on development of root primordium were studied in this paper. The results showed that the healthy and strong branches should be chosen with 0. 25 - 0. 28 cm of stem diameter, and then be girdled on the yellow - green or blue - green stem segments and covered with 100 mg/L ABT - 1 rooting powder. After 40 - 50 days, when the bandaged stem showed epidermis uplifts or white root points, the branch could be cut from the parent tree and planted in the substrate for root culture.

关 键 词：茶树 环割 愈伤组织 根原基 

分 类 号：S571.104.3[农业科学—茶叶生产加工]