马铃薯是舟曲县主要的高产作物之一，在群众日常生活及农民生产收入中占据重要位置。在当地马铃薯生产中，由于种性退化以及某些病害，使马铃薯块茎商品性和食性变差，产量下降3－4成。采用实生苗或茎尖培养生产微型脱毒种薯，解决生产上马铃薯品种退化问题，虽然效果较好，但 Potato is one of the major high-yield crops in Zhouqu County, occupying an important position in the daily life of the masses and the incomes of farmers. In local potato production, because of the degenerative species and some diseases, potato tubers deteriorate the commerciality and food habits, and the yield drops by 3-4%. The use of seedling or shoot tip culture to produce mini virus-free seed to solve the production of potato varieties degradation problem, although the effect is better, but