马铃薯是世界主要粮食作物之一。在现代农业中育成具有较高经济价值能更大的满足生产需要的马铃薯品种是特別重要的。马铃薯生产发展的速度缓慢。马铃薯是无性繁殖作物,不可能用一般的选育方法改善现存品种,如果老品种已长时间栽培,就意味着新品种不比原先的品种好多少。在许多国家里,甚至在农业发达的国家,新品种不易取代 Potato is one of the world’s major food crops. It is particularly important to cultivate potato varieties that have greater economic value in modern agriculture to meet production needs. Potato production is slow to develop. Potato is a vegetatively vegetative crop. It is impossible to improve existing cultivars by general breeding methods. If the old cultivars have been cultivated for a long time, it means that the new cultivars are not much better or worse than the original ones. In many countries, new varieties are not easily replaced, even in developed countries