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比较分析了环切和叶面喷施ＧＡ处理对宫川温州蜜柑的成花数量以及成花过程中一年生秋梢的内源ＧＡ和叶片中ＲＮＡ、ＤＮＡ含量的影响。结果表明，环切处理显著促进成花和降低梢中内源ＧＡ含量，提高了花芽生理分化期叶片ＲＮＡ含量和ＲＮＡ／ＤＮＡ值；叶面喷施ＧＡ处理则完全抑制了成花，在生理分化期显著提高了秋梢中内源ＧＡ含量，减少了叶片ＲＮＡ含量和ＲＮＡ／ＤＮＡ值。环切、喷施ＧＡ以及对照三个处理的内源ＧＡ含量都有一个相似的动态趋势，即在１月下２月中降低，３月明显上升，可能是物候环境因子影响的结果。
The effects of circumstance cutting and foliar spray GA treatments on the number of flower buds and the content of RNA and DNA in endogenous GA and leaves of one year old shoots during flowering were analyzed. The results showed that the circumcision treatment significantly increased the contents of endogenous GA and increased the contents of RNA and RNA / DNA in the leaves during flowering and bud differentiation, while the foliar spraying GA completely inhibited the flowering and physiological differentiation Significantly increased the endogenous GA content in autumn shoots and reduced the RNA content and RNA / DNA value in leaves. There was a similar dynamic trend of the endogenous GA content in the three treatments of circumcision, spraying GA and control, which decreased in the next two months in January and increased obviously in March, which may be the result of the influence of the phenological environment factor.