喷施多效唑对盆栽苹果影响试验初报

Foliar Spray PP_(333) Experiment of Apple Cultivated in Pot

叶面喷施多效唑能显著抑制盆栽富士苹果的营养生长,新梢长度减少30%～80%,节间长度减少30%～50%,树冠高度减少20%～60%,并且可增加短果枝数量90%～180%。施药时间6月上旬,喷施浓度为300mg/L。盆栽短枝型苹果喷施多效唑要慎重。

PP333 treatment of foliar spray severely inhibited the vegetative growth of Fuji potted apple tree. The length of shoot and the internodes length of shoot as well as the height of crown were reduced by 30%～80% 30%～50% and 20%～60% respectively while the number of the short bearing branch increased 90%～180%. The proper level is 300 mg/L foliar spray in the middle ten days of June. And the PP333 used for the short branch apple in pot must be cautiously.