关键词: 马铃薯, 中早熟, 优质, 高产, 品种

Abstract: ‘Chuanyu 18’is a new potato cultivar selected from crosses between true potato seeds（C92.140 × C93.154）. It is a mid-early maturing cultivar with 70 d growth period. The tuber shape is oval，tuber skin is smooth and the skin color is light yellow，tuber flesh color is white，with less and shallow bud eyes. The dry matter content of tuber is 24.3%，the starch content is 14.2%，the reducing sugar content is 0.14%，the crude protein content is 2.43%，the vitamin C content is 0.2642 mg ? g-1 and the average yield is 25.54 t ? hm-2. This cultivar is suitable for autumn sowing and winter sowing in Chengdu plain，or low mountain areas and low hilly regions surrounding Chengdu plain，also suitable for spring sowing in alpine and plateau areas such as Aba，Ganzi，etc.

Key words: potato, mid-early maturity, high-quality, high-yield, cultivar