R817是浙江省农科院原子能利用研究所利用钴—60Υ射线辐照矮双糯水稻干种子选育而成的中熟晚糯新品种。1981年参加本所新品系鉴定,1983年开始全省多点试种,1984年试种遍及全省50多个县(市),1985年种植面积达12万亩。该品种在浦江、义乌、开化,常山、余杭等县已成为糯稻当家品种。R817具有早熟、高产、中杆抗倒、 R817 is a middle-maturing late waxy rice variety which is made by the Institute of Atomic Energy Utilization, Zhejiang Academy of Agricultural Sciences, which is made by irradiating the dry seeds of Dianzhong glutinous rice with cobalt-60 γ ray. In 1981 to participate in the identification of new strains of the Institute, 1983, the province began to try more, the province in 1984 to test throughout the more than 50 counties (cities), 1985 planting area of ​​120,000 mu. The varieties in Pujiang, Yiwu, Kaihua, Changshan, Yuhang counties have become the sticky rice headed varieties. R817 has a precocious, high yield, in the bar anti-down,