GL和ABT生根液对几种植物插条生根的作用比较

插条繁殖是植物繁殖的一种重要手段,它是有简单快速及保持优良品种与个体特性等特点.在农业、林业、园林绿化和花卉生产等领域广泛使用1],但大多数木本植物生根能力极弱,自然扦插根生长缓慢,成活率不高.为了解决难生根木本植物的生根问题,人们不断地寻找合适的生根剂.GL生根剂是华南师大兰花中心研制而成,多年实验证明,一定浓度的GL生根剂对多种植物插条生根有促进作用2],而ABT生根粉为一种广谱高效生根促进剂3],它能促进不定根的形成,呈爆炸性生根,在各地农业生产上得到应用.本实验用同一浓度的GL和ABT在同样条件下处理几种植物插条,旨在比较GL和ABT对插条生根的影响,为有效地指导生产及其相关方面的工作提供参考.

EFFECTS OF GLAND ABT ON ROOTING IN CUTTINGS OF SOME PLANTS

Application of rooting reagents GL and ABT promoted the formation of adventitious roots in cutting of mung bean hypocotyl.The treatment of GL significantly stimulated rooting number and range, which was more effective than that of ABT,so was the combined treatment of GL and IBA.However ,compared with GL,ABT and ABT+IBA could increase root fresh weight and root length.The rooting number and range of adventitious roots in cutting of some woody plants(eg. Carmona microphylla and Glyptostrobus pensllis) were markedly increasing by the treament of GL (250 mg/L) in comparison with ABT treatment. On the contrary,ABT(250 mg/L) caused a remarkable increase in percentage of rooting for adventitious roots by comparison with GL reagent.