针对我区的甜菜含糖逐渐下降的趋势,我们确定了稳定丰产性,提高含糖率,抗褐斑病的育种目标,经过8年选育出抗褐斑病及黄化毒病,含糖率高,稳产、适应性强的标准偏高糖型甜菜二倍体新品种——内蒙古十二号(内85020)。一、选育经过 For the sugar beet in our district, the sugar content gradually decreased. We determined the breeding target of stabilizing high yield, improving the sugar content and resistance to brown spot. After eight years, we raised the resistance to brown spot and yellow virus, High rate, stable yield, adaptability of the standard high sugar beet new diploid varieties - Inner Mongolia on the 12th (within the 85020). First, after breeding