【作者】 段运平； 田清震； 刘守渠； 王贵彩； 张效梅； 闫彩清；

【Author】 DUAN Yun-Ping~1 TLAN Qing-Zhen~2 LIU Shou-Qu~1 WANG Gui-Cai~1 ZHANG Xiao-Mei~1 YAN Cai-Qing~(~1Institute of Crop Genetics Research, Shanxi Academy of Agricultural Sciences Taiyuan 030031;~2 Institute of Breeding and Cultivation, Chinese Acaaemy of Agricultural Sciences}

【机构】 山西省农业科学院作物遗传研究所； 中国农业科学院作物育种栽培研究所；

【摘要】 利用来自北寒带玉米的特早熟材料、热带玉米的保绿抗病材料和温带玉米的高配合力材料3种不同地理远缘种质,采用逐步导入法,获得了2个供温带特早熟玉米育种利用的优良基础种质群体,育成了99-5、H_02-14等一批优良自交系;利用超低温处理和抗低温灌浆选择方法,创育了在16-17℃低温下灌浆速率高的自交系99-3、99-1,并选育出极早单2号杂交种,通过审定并应用于生产。更多还原

【Abstract】 With the eatra-early germplasm from the north frigid zone, tropical early germplasm with good disease resistance and temperate lines with high GCA, two elite extra-early populations were synthesized for further improvement with the stepwise introduction method, and several elite inbred lines, such as 99-5 and H_02-14 were developed. After super low temperate treatment and selection for high grain filling rate in low temperature, several inbred lines, such as 99-3, and 99-1, which owned higher grain filling rate in 16-17℃, A single hybrid with extra-early maturity, Jizaodan 2, had been approved in the new variety evaluation trails at provincial levels and popularized in the production.更多还原