优质丰产抗病甜菜新品种ZD204的选育

Breeding of new sugarbeet variety with good quality and high yield and resistant diseases-ZD204

ZD204为德国KWS公司和中国农科院甜菜研究所联合选育的甜菜二倍体多胚杂交种。该品种适应性强,丰产性突出,块根含糖率较高,属标准偏丰产型品种;抗褐斑病,耐丛根病和根腐病;糖汁纯度高,块根品质好。2000～2001年参加国家甜菜新品种区域试验,在全国三大甜菜产区32个试验点(次)平均根产量53724.3kg/hm2,比对照增产27.9%;平均含糖率15.6%,比对照低0.4度;平均产糖量8263.5kg/hm2,比对照提高26.8%;平均褐斑病病情为1.2级,发病程度与对照相仿;平均根腐病罹病率为0.5%,根腐病发病程度明显低于对照;在丛根病发病地区,ZD204发病率为1.0%～7.7%,对照品种发病率为1.5%～76.6%,发病程度明显低于对照。适宜在东北、华北和西北三大甜菜产区种植推广。

ZD204is a hybrid of diploid multigerm,which was bred by KWS Company of Germany and Sugarbeet Research Institute of CAAS.This variety has high adaptability,high yield and high sugar content ,it is NE type;It resistant to leafspot and tolerant Rhizomania,root rot;Sugar juice purity is high,the root quality is good.It was tested in the Sugar Beet Variety Regional Tests of national experiment during2000～2001,average root yield is53724.3kg /ha in32testing locations of three main productive regions,27.9%higher than check variety;The average sugar content is15.6%,lower0.4 o S than check;The average sugar yield is8263.5kg /ha,which increase26.8%than check;The average disease index of leafspot is1.2,nearly the same to the check;The average disease incidence of root rot is0.5%,lower than check;In the Rhizoamnia region,disease incidence of ZD204is1.0%～7.7%,lower1.5%～76.6%of check.It can be planted and recommended to expand in northeast,North China,northwest.