韩国——遗传工程研究所从1986年开始用遗传工程技术培育无病毒高产土豆种,于1988年培育成功。这种土豆种同其它国家的相比,不仅容易大批量生产,而且生产效率高100多倍。1993年在大田和始兴培育的土豆种有花生粒那么大,并在国内、澳大利亚、中国取得专利。不是在土壤里而是在培养桶里培育的土豆种共有60多种, Korea - Institute of Genetics Engineering Since 1986, genetic engineering has been used to breed virus-free and high-yield potato varieties and was successfully cultivated in 1988. Compared with other countries, this kind of potato is not only easy to mass-produce, but also its production efficiency is more than 100 times. Potatoes grown in Daejeon and Shixing in 1993 were as large as peanuts and were patented in China, Australia and China. There are more than 60 kinds of potato cultivated in the soil instead of in the soil.