幼龄果树越冬后枝条失水干枯的现象叫抽条。在诸多苹果品种中,以金冠和红富士抽条现象较重。抽条多发生于1～4年生幼树,抽条的程度随树龄增加而减轻,但管理不当的果园,8～10年生的树仍有发生。抽条主要发生于干寒地区,严重抽条的果园可达80％～90％,其主要发生于1～2年生枝条上,有时可抽到3～4年生枝,甚至主干上。 抽条是我国北方苹果生产上存在的主要问题之 After the young fruit trees dry branches after the phenomenon of dehydration called pumping. In many apple varieties, the golden crown and red Fuji spikes phenomenon heavier. Slots occurred in 1 to 4 year-old sapling, pumping the extent of increase with the age to reduce, but not properly managed orchards, 8 to 10-year-old tree still occur. The pumping mainly occurs in the dry and cold regions, and the severely drawn orchards can reach 80% to 90%. The extraction mainly takes place on branches of 1 to 2 years old, sometimes 3 to 4 years old branches or even stems. Picking is the main problem in apple production in northern China