| 利用姊妹种改进玉米种子生产技术的初步研究 |
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| 引用本文： | 刘京宝,陈伟程.利用姊妹种改进玉米种子生产技术的初步研究[J].华北农学报,1994,9(1):48-51. |
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| 作者姓名： | 刘京宝 陈伟程 |
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| 作者单位： | 河南省农业科学院粮食作物研究所，河南农业大学农学系 |
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| 摘 要： | １９８７－１９８９年对以姊妹种代替姊录系改进玉米种子生产技术所涉及的几个关键问题进行了研究。结果表明，姊妹的产量，农艺性状、整齐度优于对应的姊妹第，用其制种可增产５０％以上，姊妹种的合配力水平与对应姊妹系相当且可稳定遗传；改良单交种的产量、农艺性状、整齐度类似相应单交种。
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| 关 键 词： | 玉米 姊妹种 改良 单效种 配合力 |
The primary Study of Improving Corn Seed Production Technique by Sib-cross Hybrids |
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| Liu Jingbao.The primary Study of Improving Corn Seed Production Technique by Sib-cross Hybrids[J].Acta Agriculturae Boreali-Sinica,1994,9(1):48-51. |
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| Authors: | Liu Jingbao |
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| Abstract: | From 1987 to 1989, the main problems of improving corn Seed production technique which may be used to substitute the inbred line by sib-cross hybrids were studied. The results showed that the yield and agronomical uniformity of sib-cross hybrids were better than inbreds'and seed output were raised over 50%. The combining ability of sib-cross hybrids was similar to the inbreds and was heritable.The output and uniformity of modified hybrids was similar to hybrids. |
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| Keywords: | Corn Sib-cross hybrids Modified hybrids Combining ability Agronomical haracters Uniformity |
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