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用乙烯利喷洒玫瑰植株有延长花期及显著增加花产量的效果。使用浓度为400ppm,在展叶始期和盛期重复喷洒,整个花期延长6天(对照30天),每株产花量平均增加到对照的146.2％。用100ppm赤霉素于展叶期处理可使花期提前6天;但整个花期却缩短4天;产花量则随使用浓度升高而下降。
Spraying roses with ethephon has the effect of prolonging the flowering period and significantly increasing the yield of flowers. The concentration of 400ppm was used to spray repeatedly at the beginning and peak stage of leaf expansion. The total flowering time was extended by 6 days (control: 30 days), and the average yield per plant increased to 146.2% of the control. With 100ppm GA3 in leaf-opening treatment can flowering 6 days earlier; but the flowering was shortened 4 days; yield with the use of increased concentration and decreased.