在苹果树的整形修剪中,选用一定的树形,是关系到能否提早结果,延长盛果期年限,提高品质,达到稳产丰产的一个重要因素。各个苹果品种有其种属上的共性,但在造形时更应注意到它们各自的个性,即品种的生物学特性。有的品种干性强,坚实度大,枝条硬,极性强;有的品种则不是如此。如果忽视了品种的生物学特性,就会使得有的品种在同一树形上表现出偏冠,主枝下垂和早衰;有的品种只长树不结果,给生产带来 In the pruning of apple trees, the selection of a certain tree shape is an important factor that affects the early result, prolongs the full fruit-bearing period, increases the quality and reaches a stable and high yield. All apple varieties have their commonalities on the genus, but they should pay attention to their own individuality, that is, the biological characteristics of the varieties. Some species dry strong, solid, branches hard, strong polarity; some species is not so. If you neglect the biological characteristics of varieties, it will make some varieties in the same tree showed partial crown, main branches drooping and premature aging; some species only long trees do not produce, bring to the production