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洋芋有性杂交是利用杂种优势培育新品种提高质量的重要方法。通过有性杂交产生杂种优势,能培育出抗退化、抗病和高产稳产的良种,克服长期应用无性繁殖使品种退化的缺陷。我国黑龙江、河北、山西等地利用这种方法,培育出不少好品种。近年来,在无产阶级文化大革命的推动下,洋芋有性杂交日益普及,内蒙等地已形成群众运动。洋芋是陕北地区的主要粮食作物和蔬菜作物,遵照伟大领袖毛主席“有了优良品种,
Sexual hybrid potato is the use of heterosis breeding new varieties of an important method to improve quality. Through sexual hybrids to produce heterosis, we can cultivate the resistant and high yield stable varieties, to overcome the long-term use of asexual reproduction defects degeneration. China’s Heilongjiang, Hebei, Shanxi and other places to use this method to cultivate a lot of good varieties. In recent years, under the impetus of the Great Proletarian Cultural Revolution, sexual hybridization has become more and more popular. Inner Mongolia and other places have formed mass movements. Potato is the main food crops and vegetable crops in northern Shaanxi, in accordance with the great leader Chairman Mao, "With excellent varieties,