大田洋芋利用块茎做种,在繁殖过程中易受病、虫危害,从而导致退化,甚至丧失种用价值。近年来,由于病毒病害的蔓延,使这粮菜兼用的作物产量不高不稳。其主要原因是种子退化严重。为了保证种薯质量,发挥良种的优良特性,延长种子的使用年限,以达到高产、稳产,年年选种是非常必要的。只要遵循“提早动手,选优去劣,早收留种,防止乱、杂”的原则,是能把洋芋的选种工作做好的。 Tuberous potato tuberous species used in the breeding process susceptible to disease, insects harm, resulting in degradation, or even loss of species value. In recent years, due to the spread of virus diseases, the yield of crops that are used in both crops and vegetables is not high and unstable. The main reason is the serious deterioration of the seeds. In order to ensure the quality of seed, to play the fine characteristics of elite, to extend the useful life of the seed in order to achieve high yield, stable yield, annual selection is necessary. As long as you follow the principle of “getting started early, selecting good and bad, collecting early, and preventing chaos and miscellaneous”, it is possible to do a good job of selecting the potato varieties.