灵武长枣优系试管繁殖生根培养基优化研究  

Research on Optimizing Rooting Medium for Superior Stocks of Zizyphus jujuba Mill cv.Lingwuchangzao Plantlets in vitro Propagation

作　　者：魏鹏[1] 张存智[1] 任杰[1] 

机构地区：[1]宁夏职业技术学院生物与制药技术系,宁夏银川750021

出　　处：《北方园艺》2013年第1期111-113,共3页Northern Horticulture

基　　金：宁夏职业技术学院科研资助项目;宁夏回族自治区科技攻关计划资助项目(宁科技[2010]168号)

摘　　要：以1a生枣头为外植体,研究了灵武长枣优亲试管繁殖生根优化培养基对其生根指标的影响。结果表明:培养基中KH2PO4、MgSO4.7H2O、CaCl2.2H2O维持一定水平,KNO3与NH4NO3浓度比值介于0.9～2.0之间,长枣试管苗生根率明显提高,与对照1/2MS相比,生根率由56.7%升至84%以上,生根数、根长等反映生根质量的指标也明显提高。Taking one-year-old jujube head of Zizyphusj ujuba Mill cv.Lingwuchangzao as explant,the effect of rootingin vitro,optimizing medium for superior stocks of plantlets propagation were studied.The results showed that maintain the content of KH2PO4,MgSO4.7H2O,CaCl2.2H2O at a certain level,control the concentration rate of KNO3and NH4NO3between 0.9to 2.0,the rooting rate of plantlets will increase obviously,comparing with the conventional medium 1/2MS,the rooting rate will ascend from 56.7%to 84% above,some characteristics such as root No.per plantlet and root length per plantlet which were correlated to rooting quality rised significantly too.

关 键 词：灵武长枣 微繁 生根率 KNO3 NH4NO3 

分 类 号：S665.103.6[农业科学—果树学]