日本落叶松扦插育苗技术研究

采用随机区组设计,系统研究了生长素及插穗年龄对日本落叶松扦插育苗生根率的影响。结果表明:①用IBA、NAA及IAA处理插穗生根率高于对照;②以浓度为100mg/LIBA处理生根最好,100mg/LNAA次之,生根率分别为87.2%和85.5%;③采穗母树以1a生最佳,扦插时间以7月上旬为好。

Study on Technique of Cuttage Seedling-raising for Larix kaemferi(Lamb.)Carr.

Effects of auxin and age of cuttage seedling-raising on rooting ability of Larix kaemferi(Lamb.) Carr.were systematically studied using randomized blocks design.The results were as follows:①The rooting rates of scion cutting treated with IBA,NAA and IAA were higher than those of CK;②The rooting rate of cutting treated with IBA(100 mg/L)was the highest(87.2%),followed by treated with 100 mg/L NAA(85.5%);③The method of scion cutting from 1-year-old and rooting in July was the best.