为研究6－BA 对茶树寒害后的修复机理，以福鼎大白茶为试验对象，于入冬前后采用单因子设计试验，研究不同浓度6－BA（10mg／L、25mg／L、50mg／L、100mg／L）喷施对茶苗株高，茎粗，和叶片数以及成龄茶园产量的影响。结果表明：喷施6－BA 对茶苗的株高、茎粗、叶片数有促进作用，但浓度过高则影响其生长，其中，以50mg／L6－BA 处理的茶树生产及产量增加最大。说明喷施6－BA 可以提高茶树的抗寒性，对茶苗生长有促进作用，其中，6－BA 喷施浓度为50mg／L 时提高茶树抗寒性的效果最好。%In order to research 6 -BA for the repair mechanism of tea tree after cold injury,this test choose Fudingdabaicha as exper-iment object,Before and after the winter using single factor experiment design,research different concentration of 6 -BA (1 0 mg/L, 25 mg/L,50 mg/L,1 00 mg/L)spraying on Chamiao plant height,stem diameter,leaf number and prostagland tea production.The results showed that spraying of 6 -BA promote Chamiao plant height,stem diameter,leaf number,but high concentration had influ-ence their growth,Among them,50 mg/L6 -BA showed the largest growth change.As a result,spraying 6 - BA can improve the cold hardiness of tea tree,on ChaMiao growth has a promoting effect,spraying concentration 50 mg/L of 6 -BA improve the effect of the tea plant cold hardiness was best.
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