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苹果脱毒苗生长旺盛,建园头3年。在北方地区抽条现象严重,所谓抽条,就是在早春时期,由于地上下温差和冷风的作用,使地上部水分散失快,而地下尚未解冻吸水幔,造成水分失调而引起枝条的皱皮、干枯现象。抽条轻的树体残缺不全,重在整株抽于。因此防止抽条,是苹果无毒化栽培技术的重要一环。 一、选择适宜的砧术嫁接苗。苹果脱毒苗的砧
Apple virus-free seedlings vigorous growth, built garden first 3 years. In the northern region of the pumping phenomenon is serious, the so-called pumping, that is, in early spring, due to temperature difference between the ground and the role of the cold, so that the rapid dissipation of water above the ground, while the underground has not yet thawed absorbent mantle, resulting in moisture imbalance caused by wrinkled skin branches, Dry phenomenon. Bolt light tree incomplete, focusing on whole plant pumped. So to prevent the strip, Apple is an important part of non-toxic cultivation techniques. First, choose the appropriate anvil grafting seedlings. Apple virus-free seedling anvil