摘要
九单57以外引系444为母本,自选系1216为父本,于1998年育成,2004年通过吉林省农作物品种审定委员会审定.该品种生育期为127 d,需≥10℃积温2650℃,属中晚熟玉米杂交种.具有高产、稳产、品质优良的特点,适宜我国各主要玉米产区推广应用.种植密度为5.0万株／hm2.制种时父母本同期播种.
Jiudan57 was bred from the female parent 444 and male parent 1216 in 1998. It was examined and approved by the committee of Jilin Province in 2004. Its breeding period was 127 days and the needed accumulated temperature of more than 10 ℃ was 2650 ℃ . It was applied and spreaded preferentially in main corn producing regions which had high and stable yield, and top quality. Its planting density was 50 thousands/hm and its parents should be sown at the same time.
出处
《延边大学农学学报》
2004年第4期258-260,共3页
Agricultural Science Journal of Yanbian University
关键词
玉米杂交种
九单57
品种选育
<Keyword>corn hybrid
Jiudan57
variety breeding
