摘要　在照光和黑暗条件下研究了不同浓度的6-BA和GA+6-BA混合剂处理对油茶离体叶片衰老的影响.结果表明，在光条件下6-BA可以保持叶片细胞的超氧歧化酶(SOD)活性(为对照的129%)，降低了膜脂过氧化产物丙二醛(MDA)的积累(为对照的47%)，延缓叶绿素和蛋白质的降解.说明6-BA有延缓叶片衰老的作用，在黑暗条件下上述生理指标的水平较低，表明光对6-BA的作用有一定的增益效应.GA+6-BA混合剂处理没有明显效果.关键词　6-苄氨基嘌呤；油茶叶片；延缓衰老中图分类号　S794.401 Delayed Action of 6-BA on Detached-leavesSenescence in Camellia oleifera Hu Zhesen Resources ＆ Environment Department，Fujian College of Forestry，Nanping，Fujian 353001 ABSTRACT Experiments were carried out to study the effect of different concentration 6-BA solutions and 6-BA-GA mixtures on detached-leaves senescence of Camellia oleifera under illumination and dark，the results indicated that:under illumination，6-BA could maitain