中晚熟 优质 高产玉米新品种承单50的选育

The Breeding of New Maize Variety Chengdan 50 with Mid-late Maturing,High Quality and High Yield

中晚熟、优质、高产玉米新品种承单50,是以H10为母本、F516为父本杂交育成的早熟杂交种。2006～2007年通过初级鉴定和品种多点试验示范;2009～2010年连续2 a参加承德市区域试验,平均产量为11547.0 kg/hm2,较对照品种承玉14增产7.35%;2011年参加承德市春播中熟组生产试验,平均产量为12772.5 kg/hm2,较对照品种农大364增产12.3%。2012年2月通过河北省品种审定委员会审定。该品种株型紧凑,茎秆韧性好,气生根多,抗倒性好,高产稳产,抗病性强,品质优良,生育期126 d,适宜在河北省春播中晚熟玉米种植区及有效积温≥2750℃的地区种植。

The new maize Variety Chengdan 50 with mid-late maturing, high quality and high yield was bred by crossing between H10 （female parent） and F516 （male parent） . It was passed the primary identification and varieties more pilot demonstration. The average yield was 11 547.0 kg/hm2, increased by 7.35% comaring to control variety Chengyu 14 in the regional test of Chengde City in 2009 - 2010, and in the production test of spring planting medium maturity group of Chengde City in 2011, the average yield was 12 772.5 kg/hm2, and was higher than Nongda 364 by 12. 3%. It was approved by Hebei Crop Variety Approval Committee in February 2012. It had the properties of compact plant, stalk toughness, more aerial roots, higher lodging resistance, high and stable yield, strong disease resistance, high quality and 126 d of growth period. It was suitable for spring planting in the areas of mid-late maturing maize growing and effective temperature ≥2 750 ℃.