苹果、葡萄等果树在开花以后需要更多的光照和通风,但往往由于过多的树叶而影响了光照、通风,从而降低了结果率,特别是在亚热带地区的果树更是如此。为了提高这类水果的产量,菲律宾大学园艺系研制了一种果树落叶剂,在需要 Fruit trees, such as apples and grapes, require more light and ventilation after flowering, but they often affect light and ventilation due to excessive leaves, reducing the rate of results, especially in fruit trees in the subtropics. In order to increase the yield of such fruits, the Department of Horticulture, University of the Philippines, developed a deciduous fruit tree extract