杂交玉米新品种惠农单2号的选育

摘要

Huinongdan 2,a new hybrid maize variety was bred from B047 (introduced line)× Hui 0901(self-bred line)by Bijie Huinong Institute of Maize Breeding to breed new hybrid maize varieties with high yield,stable yield and high quality for the ecological condition of Guizhou.The average yield of Huinongdan 2 is 682.9 kg/667m2 in Guizhou maize regional tests during 2012-2013,12.5% higher than CK (Guidan 8).Huinongdan 2 with 129d growth period,261cm height,116cm ear height,19.6cm ear length,15.9 ear rows,385g thousand grain weight,784g/L volume-weight,9.14% crude protein,5.06%crude fat,72.91% crude starch,0.28% lysine,good quality and strong resistance to stem rot was approved by Guizhou Crops Variety Examination Committee in June,2014.%为选育适宜贵州生态区种植的高产、稳产、优质杂交玉米新品种，毕节市七星关区惠农玉米育种科学研究所以外引系 B047作母本，自育系惠0901作父本组配育成惠农单2号（惠农试11）杂交玉米新品种。惠农单2号在2012－2013年贵州省玉米区域试验中，2年平均单产682．9 kg／667m2，比对照（贵单8号）增产12．5％，生育期129 d，株高261 cm，穗位高116 cm，穗长19．6 cm，穗行数15．9行，千粒重385 g，容重784 g／L，粗蛋白质9．14％，粗脂肪5．06％，粗淀粉72．91％，赖氨酸0．28％。该品种品质优良，具有高抗茎腐病等优点，于2014年6月通过贵州省农作物品种审定委员会审定（黔审玉2014006）。