| 转Bt基因抗虫棉杂种优势利用研究 |
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| 引用本文： | 张桂寅,刘立峰,马峙英.转Bt基因抗虫棉杂种优势利用研究[J].棉花学报,2001,13(5):264-267. |
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| 作者姓名： | 张桂寅 刘立峰 马峙英 |
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| 作者单位： | 河北农业大学,保定,071001 |
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| 基金项目： | 河北省博士资金项目 (985 4 0 1 1 4 D)，河北农业大学科技攻关重点项目 (981 6计划 ) |
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| 摘 要： | 利用河北省审定的棉花品种或新品系与美国抗虫棉新棉 3 3 B及我国自育的 2个抗虫棉品系配制杂交组合 ,分析了转 Bt基因杂交抗虫棉的优势表现。结果表明 ,转 Bt基因杂交棉具有较大的产量优势。在产量构成因素中 ,单铃重的增加较大 ,其次是衣分 ,单株结铃数优势最小。对纤维品质分析表明 ,抗虫杂交棉纤维品质一般具有负优势。纤维长度和比强度多低于抗虫亲本和对照 ,麦克隆值增大 ,整齐度好于抗虫亲本和对照
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| 关 键 词： | 转Bt基因棉 杂种优势 产量性状 纤维品质 |
| 文章编号： | 1002-7807(2001)05-0264-04 |
| 修稿时间： | 2001年5月3日 |
Study on Heterosis Utilization of Insect-resistant Transgenic Bt (Bacillus thuringiensis) Cotton |
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| ZHANG Gui-yin,LIU Li-feng,MA Zhi-ying.Study on Heterosis Utilization of Insect-resistant Transgenic Bt (Bacillus thuringiensis) Cotton[J].Cotton Science,2001,13(5):264-267. |
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| Authors: | ZHANG Gui-yin LIU Li-feng MA Zhi-ying |
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| Abstract: | Crosses were made by using the new varieties (lines) of Hebe i province and Nucotn 33B, to analyze heterosis in the hybrids of transgenic Bt cotton. The result showed that the yield heterosis was high in F 1 hybrids. The boll weight has the highest heterosis, while bolls per plant has lowest heteros is among the yield components.The most fiber quality traits in F 1 hybrids were inferior to those of the check and insect-resistant parent. 2.5% span length, fiber strength and macronaire value of the hybrids were inferior,but the fibre uniformity was superior. |
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| Keywords: | transgenic Bt cotton heterosis yield fiber quality |
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