植物生长调节剂对南蛇藤嫩枝扦插生根的影响

目的]研究植物生长调节剂种类、浓度及处理时间对南蛇藤插穗生根的影响。方法]用NAA、IBA、ABT1和GGR64种植物生长调节剂配成不同浓度溶液,对南蛇藤插穗基部浸泡或速蘸后进行全光照自动喷雾扦插,以清水为对照,2个月后对插穗生根状况进行调查。结果]南蛇藤插穗基部在浓度300mg/L的IBA溶液中浸泡40min和插穗基部用浓度1000mg/L的NAA速蘸的处理生根效果较好,平均生根数分别为45.6、38.5条,扦插成活率分别为87.0%和91.5%。结论]该研究为南蛇藤的快速繁殖提供了参考。

Effects of Plant Growth Regulator on Cutting and Rooting of Celastrus orbiculatus Twigs

Objective The aim was to study the effects of kinds,concn.and treating time of plant growth regulators on cutting and rooting of Celastrus orbiculatus twigs.Method]4 kinds of plant growth regulators including NAA、IBA、ABT1 and GGR6 were made into the solutions with different concn.and C.orbiculatus twigs were made for the full-light automatic spraying cutting after soaking or speedily dipping the cuttings base of C.orbiculatus by different solutions of plant growth regulators,with the clean water as the CK.The cutting and rooting condition was investigated after treatment for 2 months.Result]The treatment of soaking the cuttings base of C.orbiculatus with 300 mg/L IBA for 40 min and the treatment of speedily dipping the cuttings base of C.orbiculatus with 1 000 mg/L NAA had better rooting effect,with the mean rooting number of 45.6 and 38.5 resp.and the cutting survival rate of 87.0% and 91.5% resp.Conclusion]The study provided the reference for the rap reproduction of C.orbiculatus.