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苹果幼树及苗木采用目伤、涂发枝素及夏季短截等处理均可促其萌发分枝,不同处理在不同季节对不同类型的芽反应不同.春季目伤可促进一、二年生枝隐芽萌发和抽枝,发枝后对干径增粗有促进作用,夏季目伤可使二年生枝隐芽及停长叶丛枝顶芽全部萌发抽枝,但对新梢腋芽不起作用.春季萌芽用800ppm和1000ppm发枝素软膏涂芽无效,夏季对二年生枝隐芽、停长叶丛枝顶芽和新梢腋芽萌发生长均有促进作用.对停长叶丛枝及新梢腋芽作用更明显.当年生苗采用发枝素对促发主枝、分枝角度及方位角都很理想.
Apple saplings and seedlings with head injury, Tu hair elements and summer short cut can promote the sprouting of branches, different treatments in different seasons different types of buds respond differently in spring head injury can promote one or two years of birth to branch hidden Bud germination and pumping branches, stems after the increase of dry diameter has a promoting effect, summer head injury can make biennial hidden buds and stop the growth of all branches of the top bud shoots sprouting, but the bud shoots axillary buds ineffective. Sprouting with 800ppm and 1000ppm hair root ointment coated bud is invalid, the summer on two-year-old buds, stopping the branches and shoots buds shoots and buds axillary buds have a promoting effect on the arrest of the branches and shoots axillary buds shoot more Obviously, the seedlings used to promote seedling branches, branching angle and azimuth angle are ideal.