不同培养基质和激素浓度对莲雾嫩枝扦插生根的影响  

Effects of Culture Substrates and Hormone Concentrations on the Cutting Rooting of Syzygium samarangense Shoots

作　　者：裴红霞[1] 崔静英[1] 赵云霞[1] 高晶霞[1] 冯海萍[1] 杨冬艳[1] 谢华[1] 

机构地区：[1]宁夏农林科学院种质资源研究所,宁夏银川750002

出　　处：《安徽农业科学》2016年第35期47-48,55,共3页Journal of Anhui Agricultural Sciences

基　　金：港澳台科技合作专项项目(2015DFT30090);宁夏回族自治区对外合作项目

摘　　要：[目的]采用正交试验进行莲雾嫩枝扦插,研究不同培养基质和激素浓度对莲雾嫩枝插穗成活率和生根数的影响。[方法]以莲雾母株上当年生半木质化枝条作为插穗,使用浓度为250、500、1 000 mg/L生根粉(ABT)溶液处理扦插枝条,在黄沙、珍珠岩中培养60 d。统计每个处理的生根率,并测量根长、根数。[结果]500 mg/L生根粉溶液处理的扦插枝条在珍珠岩中的扦插成活率最高,达61.700%;珍珠岩中培养的扦插枝条,后期移栽时不易伤根,有利于莲雾后期移栽成活率的提高。[结论]500 mg/L生根粉溶液处理的扦插枝条在珍珠岩中培养为最佳组合。[Objective] To research the cutting of Syzygium samarangense（ B1.） Merr. et Perry shoots by orthogonal test,and to study the effects of culture substrates and hormone concentrations on the survival rate and rooting number of S. samarangense. [Method] With the current-year semi-lignified shoots as the cutting slips,effects of 250,500 and 1 000 mg/L ABT solutions were investigated. After cultivated in yellow sand and perlite for 60 d,the rooting rate of each treatment was counted. And the rooting number and rooting length were calcualted.[Result]Average survival rate of cutting slips treated with 500 mg/L ABT were the highest（ 61. 700%） after being cultivated in perlite. The root of cutting slips cultivated in perlite was not easily damaged during transplanting,which was helpful to the enhancement of survival rate.[Conclusion]The optimal combination was cutting slips cultivated in perlite after 500 mg/L ABT solution treatment.

关 键 词：莲雾 嫩枝扦插 生根率 

分 类 号：S604.3[农业科学—园艺学]