甜菜三倍体杂交种中甜—吉洮302的选育

The Breeding of Sugarbeet Triploid Hybrid Zhongtian-Jitao 302

中甜——吉洮302(原代号洮9006)系以RC3为母本，HQD3为 父本，按母父本3∶1自然杂交而成。该品种在全国甜菜品种生产试验中，平均 根产量、含 糖率、产糖量分别为47 580kg/hm2、15.30%和7 101.15kg/hm2，分别比对照品 种提高 9.73%，1.21度和19.60%。中甜——吉洮302品种稳定性好，抗褐斑病，耐根腐病，适 宜在甘肃、新疆、内蒙中东部、吉林和宁夏等地种植。

Zhongtian-Jitao 302 was bred by RC\-3 crossed with HQD\-3 in natural crossing.The ratio of RC\-3 and HQD\-3 was 3∶1.This Variety have been tested in the national demonstration in 1999.The root yield,sugar content and sugar yield were 47 580.0kg/hm\+2,15.30% and 7 101.15kg/hm\+2 and higher than CK 9.73kg/hm\+2,1.21°S and 19.60kg/hm\+2 respeetively.Zhongtian-Jitao302 has the better stability and resistant to leafspot and tolerant to root rot and is suitable to plant in Gansu,Xinjiang,Central and east of Inner Mengolia and Jilin etc.