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苹果幼旺树主干多条桥接矮化砧条,可使树体矮化早果.一般表现为树冠体积小,干周增长率低.长枝变少变短,中、短枝比例明显增加,果枝率显著提高.其中 M2、M7,M9对四年生‘富士’,M2、M9、M26对四年生‘红国光’.M9、M28对四年生‘红星’处理一年后,果枝率皆达20%以上.M4、M7对三年生短枝型‘玫瑰红’促花效果也很明显,果枝率比对照提高50%～60%.以‘国光’条作中间砧进行桥接,也有一定的致矮促花效果.
Apple tree seedlings more than a few bridges dwarf anvil can make the tree dwarf early fruit.General performance of the crown small size, low growth rate of dry weeks.Longer branches become shorter and shorter, the proportion of short branches increased significantly, Fruit branch rate was significantly increased, of which M2, M7, M9 on the four-year-old ’Fuji’, M2, M9, M26 on the four-year-old ’Red Light’ M9, M28 on the four year ’Red Star’ % .M4, M7 for triennial sparse rose ’rose’ effect is also obvious, fruiting branches rate increased by 50% to 60% compared with the control ’State Light’ for the middle of anvil bridge, but also to a certain extent Flower effect.