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二、不同树种的研究情况 (三) 苹果苹果的育种工作也是1933年开始的,育种目标是:抗寒、冻害恢复快、活性酸含量高、抗病、果实大、味美、适于加工和不同熟期的品种。育种工作的主持人是里萨文科,经过数十年的努力,他们利用了200多个原始资料,配制了3500多个杂交组
Second, the study of different species (c) apple apple breeding work is also started in 1933, breeding objectives are: cold, frost damage recovery fast, high acid content, disease resistance, fruit, delicious, suitable for processing and different Maturity of the species. After a decade of hard work, the host of the breeding program is Lisa Manchu, who used more than 200 sources and prepared more than 3,500 hybrids