目前,在苹果育种科研工作中,有性杂交仍然是主要方法。近年来,为了更好地掌握杂交亲本的遗传倾向和更有效地进行育种工作,都大大增加每个组合的花序数,这就加大了杂交授粉的工作量。特别是在花期集中情况下,急需提高杂交速度。而杂交速度又受去雄速度的影响,因此,去雄是个关键 At present, sexual hybridization is still the main method in apple breeding research. In recent years, in order to better understand the genetic predisposition of hybrid parents and to carry out breeding work more effectively, the number of inflorescences in each combination is greatly increased, which increases the workload of hybridization pollination. Especially in the case of concentrated flowering, the urgent need to improve the speed of hybridization. However, the speed of hybridization is affected by the speed of dehulling, therefore, extinction is a key issue