| 玉米改良单交种的效应研究Ⅰ.自交系48-2不同世代姊妹系配制姊妹种及改良单交的比较 |
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| 引用本文： | 雷本鸣,荣廷昭,刘礼超,倪昔玉,潘光堂,黄玉碧. 玉米改良单交种的效应研究Ⅰ.自交系48-2不同世代姊妹系配制姊妹种及改良单交的比较[J]. 四川农业大学学报, 1996, 0(4) |
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| 作者姓名： | 雷本鸣 荣廷昭 刘礼超 倪昔玉 潘光堂 黄玉碧 |
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| 作者单位： | 四川农业大学农学院!雅安市625014 |
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| 摘 要： | 在48－2的众多姊妹系中，选出不同世代的姊妹系9个，配成姊妹种和改良单交种进行比较研究。结果表明：从S3分离形成的妹妹系配成的姊妹种，有一定的优势，有利于提高制种产量，且用它们配成的改良单交种，其经济产量和主要农艺性状与对应正常单交种基本一致；同时还表明：一个自交系的同一姊妹种，对其所配的各改良单交种，具有不同的特殊配合力效应。
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| 关 键 词： | 玉米[45EJ，49EJ] 姊妹系 姊妹种 改良单交 世代[45AA，49RA] 单交[49DB] |
EFFECT OF MAIZE MODIFIED HYBRIDⅠ.COMPARISONS OF 48-2 SIB-INBREDS SELECTED FROM DIFFERENT GENERATIONS WITH THEIR SIB-CROSSES AND MODIFIED HYBRIDS |
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| Lei Benming, et al. EFFECT OF MAIZE MODIFIED HYBRIDⅠ.COMPARISONS OF 48-2 SIB-INBREDS SELECTED FROM DIFFERENT GENERATIONS WITH THEIR SIB-CROSSES AND MODIFIED HYBRIDS[J]. Journal of Sichuan Agricultural University, 1996, 0(4) |
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| Authors: | Lei Benming et al |
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| Abstract: | Nine 48-2 sib-inbreds selected from S2. S3 and S4, their sibecrosses and modified hybrids were used to evaluated the effects maize modifiedhybrids. The results indicated that (1) sib-inbreds from S3 can improve seedproduction because of the heterosis existedim their sib-crosses, morever. theyield and main agronomic attributes of the modified hybrids with these sib-crosses are similiar to those of mormal hybrids; and (2) there are differentspecific combining abilities in the modified hybrids of the samesib-cross fromone inbred. |
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| Keywords: | SIB-INBRED SIB-CROSS MODIFIED HYBRID GENERATION SINGLE CROSSES |
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