| 特早熟玉米种质改良与耐低温高产杂交种选育 |
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| 引用本文： | 段运平,田清震,刘守渠,王贵彩.特早熟玉米种质改良与耐低温高产杂交种选育[J].山西农业科学,2007,35(6):42-46. |
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| 作者姓名： | 段运平 田清震 刘守渠 王贵彩 |
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| 作者单位： | 1. 山西省农业科学院作物遗传研究所,山西,太原,030031
2. 中国农业科学院作物育种栽培研究所,北京,100081 |
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| 基金项目： | 山西省自然科学基金;山西省农业科学院博士基金 |
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| 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,H02-14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,H02-86,并选育出极早单2号、极早单13号杂交种,通过审定并应用于生产。
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| 关 键 词： | 特早熟玉米 种质改良 逐步聚合导入法 抗低温灌浆选择 |
| 文章编号： | 1002-2481（2007）06-0042-05 |
| 修稿时间： | 2007-05-15 |
Germplasm Improvement on Special Early Maturing Corn and Selection of Low - Temperature Resistanace High Yield Hybrid |
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| DUAN Yun-ping,TIAN Qing-zhen,LIU Shou-qu,WANG Gui-cai.Germplasm Improvement on Special Early Maturing Corn and Selection of Low - Temperature Resistanace High Yield Hybrid[J].Journal of Shanxi Agricultural Sciences,2007,35(6):42-46. |
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| Authors: | DUAN Yun-ping TIAN Qing-zhen LIU Shou-qu WANG Gui-cai |
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| Institution: | Institute of Crop Genetics, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, China; Institute of Breeding and Cultivation, Chinese Academy of Agricultural Sciences, Bering 100081, China |
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| 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 through the stepwise introduction method,and several elite inbred lines,such as 99-5 and H02-14 were developed.After super low temperature treatment and selection for high grain filling rate in low temperature,several inbred lines,such as 99-3 and H02-86,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. |
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| Keywords: | Extra-early maize Germplasm improvement Stepwise introduction and pyramidding Selection for high grain filling rate in low temperature |
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