甜菜多倍体单粒品种BHK1的选育

甜菜多倍体新品种BHK1系多倍体雄不育单粒品种，由四倍体多粒品系BS95462作父本，与德国KWS种子公司KWS26194作母本杂交育成，该品种抗（耐）丛根病、抗根腐病、褐斑病、黄化毒病及立枯病性较好，在2006-2007年内蒙古自治区甜菜品种区域试验中。两年均达到新品种标准，其块根产量、含糖率、产糖量两年平均比对照分别提高21.14％、0．26度和23．42％：同时在2007年的普通组生产试验中，平均产量为69885kg／hm^2，比对照增产24．张，含糖率为14．9％．比对照低0．04度，达到新品种标准；在三级丛根病地生产试验中，平均产量为34680kg／hm^2，含糖率为15．63％．达到抗（耐）丛根病标准。

Breeding of Monogerm Polyploid Sugarbeet BHK1

The new variety BHK1 as male sterile monogerm polyploid sugarbeet was bred from multigerrn tetraploid strains BS95462 as male parent, with KWS26194 as female parent. The variety was resistance （Tolerance） to Rhizomania, root rot, leaf spot, yellow virus and damping-off disease. In regional sugarbeet varieties test of Inner Mongolia Autonomous Region from 2006 to 2007, the variety reached standards of new sugarbeet variety, the mean root yield, sugar content, sugar yield was increased by 21.14%, 0.26°S and 23.42% respectively, in comparison with the control variety. In 2007 production test of the general group, the mean yield was 69885kg/ha, increased by 24.3%, and sugar content was 14.9%, decreased by 0.04°S in comparison with the control variety. In productive demonstration test of three class Rhizomania diseases, the mean yield was 34680kg/ ha, sugar content was 15.63%, up to resistance （tolerance） Rhizomania standards.