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培育抗病虫害的苹果品种有两种方法:一种是通过杂交,积极地导入抗病基因,育成抗病虫害的品种;另一种是通过早期选择,淘汰无抗性的个体,可谓之培育抗病虫害品种的一种消极的方法。
There are two ways to cultivate pest-resistant apple cultivars. One is to cross-fertilize actively the disease-resistant genes and develop pest-resistant varieties. The other is to eliminate non-resistant individuals by early selection A negative approach to variety.