萘乙酸能促进植物细胞分裂与扩大、诱导形成不定根、增加坐果,防止落果,改变雌、雄花比率等,在果树上应用较为广泛。1.疏果金冠、元帅系苹果和鸭梨,在盛花两周后喷20毫克/升萘乙酸,国光苹果盛花10天后喷20毫克/升萘乙酸+300毫克/升乙烯利,可收到显著的疏果效果。 Naphthalene acetic acid can promote the division and expansion of plant cells, induce the formation of adventitious roots, increase fruit set, prevent fruit loss, change the ratio of male and female flowers, and is widely used in fruit trees. 1. Thinning Golden Delicious, Marshal Department of apples and pear, two weeks after the full bloom spray 20 mg / L naphthalene acetic acid, Guoguang apple flower spray 10 mg / L NAA + 300 mg / L ethephon 10 days after receive significant The effect of thinning fruit.