抗丛根病甜菜新品种中甜——内糖(ND)37的选育

Breeding of new sugarbeet variety Zhongtian-Neitang(ND)37 with resistance to Rhizomania

中甜—内糖(ND)37以抗(耐)丛根病二倍体单粒雄性不育系moms66181为母本,以从品系334-1中选育出的高糖抗病四倍体多粒授粉系974001为父本杂交而成。该品种在1999～2001年全国第六届甜菜品种区域试验中平均根产量、含糖率、产糖量分别为56022kg/hm2、15、89度、8915.2kg/hm2,分别比对照提高17.7%、1.17度、27.2%。2002年,中甜—内糖(ND)37生产试验平均根产量、含糖率、产糖量为54925kg/hm2、15.94度、8742.9kg/hm2,分别比对照提高31.7%、0.6度、36.8%。中甜—内糖(ND)37适应性较强,抗丛根病,适宜在新疆、甘肃、山西、河北、内蒙古地区种植,种殖密度75000～82500株/hm2。

The sugarbeet Variety Zhongtian-Neitang(ND)37 is bred by crossing in which female parent is diploid monogerm MS line moms 6618 with resistance(tolerance) to rhizomania and male is tetraploid multigerm pollinated line 97 4001 with high sugar content selected from line 334-1.In the sixth national regional test of sugarbeet variety from 1999 to 2001,The Variety showed that average root yield and sugar content and sugar yield was 56 022 kg/hm^2 and (15.89°S) and (895.2)(kg/hm^2),increased by (17.7%) and (1.17°S) and (27.2%) respectively than CK.During the Productive demonstration in 2002,the variety's average root yield and sugar content and sugar yield was 54 925kg/hm^2 and 15.94°S and 8 742.9kg/hm^2,increased by 31.7% and 0.6°S and 36.8% respectively than CK.The suitable planting density is baout 75 000～82 500 plants/hm^2 in the Provinces of Shanxi and Hebei and Gansu,as well as Automons resion of Xinjiang and Inner Mongolia.