西藏长鞭红景天炼苗及移栽技术研究

目的]研究西藏长鞭红景天的炼苗及移栽技术。方法]在长鞭红景天组培苗的炼苗及移栽过程中,采取不同的处理方法,进行对比试验。结果]使用高浓度青霉素钠处理组培苗,抑菌能力强,无严重污染现象,未污染苗株数最多;在4种对比基质中,腐殖土-珍珠岩(5∶5,W/W)的栽培基质最有利于长鞭红景天的生长,成活率可达65%;移栽预处理过程中对组培苗洗根后的成活率高于未洗根的;对栽培基质消毒后,移栽苗的成活率高于未消毒的。结论]长鞭红景天组培苗需要2个月左右才生根,且苗长势较弱,部分苗为徒长苗。

Study on the Acclimatization and Transplanting Technology of Rhodiola fastigiata Seedlings

Objective] To study the acclimatization and transplanting technology of R.fastigiata seedlings.Method] During the acclimatization and transplanting process of R.fastigiata tissue culture seedlings,different treatment methods were adopted to carry out a comparative experiment.Result] The tissue culture seedlings treated with high-concentration penicillin sodium have good antibacterial ability without been seriously polluted,the quantity of unpolluted seedlings is the largest;among the four matrix,the matrix of budding soil: perlite(5∶5) is favorable to growing of R.fastigiata,and its survival rate could reach 65%;the survival rate is higher after washing root;after disinfection of cultivation matrix,the survival rate is also higher.Conclusion] The rooting of R.fastigiata starts when cultured for around two months,the growth vigor of seedlings is weak,and some seedlings are spindling seedlings.