丰产优质抗病甜菜新品种ZM202的选育

ZM202是美国BetaSeed公司和中国农业科学院甜菜研究所合作选育的甜菜二倍体多胚雄不育杂交种。该品种丰产性突出．舍糖性状优良，抗丛根病，耐根腐病和褐斑病，适应性广，块根品质好。在2005～2006年的黑龙江省甜菜品种区域试验中．两年14个试验点次平均根产量44019．2kg／hm^2，比对照品种甜研309提高37．2％；平均含糖率16．4％．比对照品种低0．8度；平均产糖量7285．6kg／hm^2，比对照品种提高31．7％；对丛根病、根腐病的抗性明显优于对照品种．对褐斑病的抗性与对照品种相当。在2007年的黑龙江省甜菜品种生产试验中．5个试验点ZM202平均根产量45754．2kg／hm^2．比对照品种甜研309提高48．7％：平均含糖率17．1％。比对照品种低0.2度；平均产糖量7729．2kg／hm^2．比对照品种提高45．2％。该品种适宜在黑龙江省的齐齐哈尔、哈尔滨、大庆、黑河等甜菜产区种植推广。

Breeding of Sugarbeet Variety ZM202 with High Yield and Disease Resistance

The ZM202 as male sterile multigerm diploid sugarbeet hybrid variety, was co-bred by BetaSeed Company of the U.S.A and Sugarbeet Research Institute of the Chinese Academy of Agricultural Sciences. The variety has higher root yield, sugar content and good root quality, resistance to Rhizomania, tolerance to root rot and leaf spot, as well as extensive adaptability. Total 14 sites data were analyzed from the Heilongjiang Sugarbeet Variety Regional Test from 2005 to 2006. The mean root yield was 44019.2 kg/ha, increased by 37.2%; the mean sugar content was 16.4%, decreased by 0.8°S; the mean sugar yield was 7285.6 kg/ha, increased by 31.7%, in comparison with control variety, TY309. The resistance to Rhizomania and root rot was superior to the control variety; the resistance to leaf spot disease was similar to the control variety. And total 5 sites data were analyzed from the Heilongjiang Sugarbeet Variety Demonstration Experiment in 2007. The mean root yield was 45754.2 kg/ha, increased by 48.7%; the mean sugar content was 17.1%, lowered by 0.2°S; the mean sugar yield was 7729.2 kg/ha, increased by 45.2%, in comparison with control variety, TY309. The ZM202 is fit for planting and popularizing in Qiqihaer, Harbin, Daqing, Heihe of Heilongjiang sugarbeet areas.