玉米新品种桂单662的选育及栽培技术

Breeding and cultivation techniques of new maize variety Guidan662

桂单662是广西壮族自治区农业科学院玉米研究所以自交系桂A10341为母本,GML906为父本杂交选育而成的玉米新品种,2017年参加广西玉米区域试验,两季平均产量为8253.6 kg/hm^(2),比对照桂单162增产8.4%;2018年参加广西玉米生产试验,两季平均产量为7348.1 kg/hm^(2),比对照桂单162增产6.5%。2017—2018年参加老挝南塔省玉米新品种筛选试验和对比试验,平均产量分别为9616.5、9243.0 kg/hm^(2),分别比当地主推品种LVN10增产18.2%和16.6%。2019年通过老挝农作物品种登记(登记号:00080S)和广西壮族自治区农作物品种审定委员会审定(桂审玉2019087号)。桂单662抗病性强、适应性广、商品性好,适宜在广西各地及老挝各省种植。

Guidan 662 is a new maize variety which is bred by crossing Gui A10341 as female parent and GML906 as male parent in Maize Research Institute of Guangxi Academy of Agricultural Sciences.In 2017,the average yield of maize in Guangxi was 8253.6 kg/hm^(2),which was 8.4%higher than that of the control Guidan 162.In 2018,the average yield of maize in Guangxi was 7348.1 kg/hm^(2),which was 6.5% higher than that of the control Guidan 162.From 2017 to 2018,the average yields of new maize varieties were 9616.5~9243.0 kg/hm^(2) respectively,which were 18.2% and 16.6% higher than that of the local variety LVN10,it participated in maize newvariety selection trial and maize contrast test in Natha Province of Laos.In 2019,it was approved by both the Laos Crop Variety Registration(accession number:00080S)and the Crop Variety Certification Committee of Guangxi Zhuang Autonomous Region(accession number:Guishenyu 2019087).Guidan 662 has strong disease resistance,wide adaptability and good commercial property.It is suitable for planting in all parts of Guangxi and all provinces of Laos.