应用新型绿色植物生长调节剂ABT-11～15号生根粉促进树木扦插成活

Promotion of Cutting Propagation for Woody Plants by Application of New Green Plant Growth Regulators: ABT(11-15).

用中国林科院ＡＢＴ研究开发中心提供的５种新型绿色植物生长调节剂（ＡＢＴ－１１～１５号）检验了对龙柏、雪松、金叶千头柏、小叶罗汉松、南方红豆杉、十大功劳、红花木、栀子花、黄杨、杭紫薇、含笑和木犀计１２个树种扦插成活的促进效果，并以ＡＢＴ－１号（ＣＫ１）和清水（ＣＫ２）作对照。结果表明：新剂型的效果对全部１２个树种优于ＣＫ２，对１０个树种超过ＣＫ１。生长调节剂处理促使８个树种的扦插成活率达７０％以上。选定了这些树种生根粉的剂型、浓度、浸沾时间的最佳组合，多数为ＡＢＴ－１１号，５０ｍｇ·ｋｇ－１或１００ｍｇ·ｋｇ－１，浸沾时间为１．０ｈ。

By application of 5 new green plant growth regulators (ABT-11 to ABT-15) and of ABT-1 and water as controls (CK 1 and CK 2),the promoting effect for cutting propagation survival of 12 tree species was tested, namely Cedrus deodara, Sabina chinesis cv. Kaizuca, Platycladus orientalis cv. Aurea, Porocarpus macrophyllus var. maki, Taxus mairei, Mabonia fortunei, Loropetalum chinense var. rubrum, Gardenia jasminoides form . grandiflora, Buxus sinica, Lagerstroemia indica, Michelia figo and Osmanthus fragrans. The results showed that for all 12 species the effect of new regulators was superior to that of CK 2, and for 10 species it excelled that of CK 1. The growth regulator treatment largely enhanced the survival percentage to as high as over 70% for 8 species. The optimum combination of regulator type, concentration and dipping time for each tree species was selected, most of which are ABT-11 regulator combining with 50 or 100 mg. kg -1 concentration and 1.0 h dipping time.