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为了控制设施栽培杏树在夏季出现枝条疯长的现象,利用化学试剂多效唑(PP333)和丁酰肼(B9)进行喷施处理。结果表明,杏树喷施多效唑和丁酰肼后,可抑制新梢的旺长,减少营养消耗,利于营养累积;丁酰肼对新梢和节间长度的抑制作用大于多效唑,对金太阳新梢生长的抑制作用更强;喷施0.25%丁酰肼的控冠效果最好。
In order to control the growth of vegetative almond trees in summer, shoots were treated with paclobutrazol (PP333) and butyrylhydrazide (B9). The results showed that apricot sprayed paclobutrazol and butyrylhydrazide inhibited the proliferation of new shoots and decreased the nutrient consumption, which was beneficial to the accumulation of nutrients. The inhibitory effect of butyric hydrazide on shoots and internode length was greater than that of paclobutrazol, The inhibitory effect of shoot growth was stronger. The crown control effect of spraying 0.25% butyrylhydrazine was the best.