Abstract: Foliar spray of uniconazole was made to Citrus grandis cv. Shatianyou. The results showed that uniconazole significantly inhibited shoot growth, improved photosynthesis, reduced individual fruit weight and increased sugar content of fruits. The intensity of these effects was closely related to the concentration of application. The possible mechanism of uniconazole was also discussed.

Key words: Citrus grandis cv. Shatianyou, uniconazole, growth, fruiting

摘要： 沙田柚叶面喷施不同浓度的优康唑,明显抑制新梢生长,促进光合作用;降低果实单重,提高产量,增加果实含糖量。其作用效果与施用浓度有关。本文对优康唑的可能作用机理进行了探讨。

关键词: 沙田柚, 优康唑, 生长, 结果