抗虫棉组合杂种优势比较及相关分析研究 |
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引用本文: | 郝良光 夏绍南 陈俊英 周宝珍 刘新稳 柯兴盛. 抗虫棉组合杂种优势比较及相关分析研究[J]. 江西农业学报, 2005, 17(3): 22-26 |
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作者姓名: | 郝良光 夏绍南 陈俊英 周宝珍 刘新稳 柯兴盛 |
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作者单位: | 郝良光(江西省棉花研究所,江西,九江,332105) 夏绍南(江西省棉花研究所,江西,九江,332105) 陈俊英(江西省棉花研究所,江西,九江,332105) 周宝珍(江西省棉花研究所,江西,九江,332105) 刘新稳(江西省棉花研究所,江西,九江,332105) 柯兴盛(江西省棉花研究所,江西,九江,332105) |
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基金项目: | 江西省科技厅农业科技攻关项目. |
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摘 要: | 用6个抗虫棉亲本与6个常规棉亲本配置杂交组合,对其中的23个组合F1进行了杂种优势比较及相关分析,结果表明,强优势组合当首推K6×K5,其综合性状优良,次推B×K2和C×K1组合;单铃重与抗亲优势、中亲优势及竞争优势之间均达极显著水平的正相关,选择大桃品种作杂交亲本,是配置强优杂交组合的主要途径之一。
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关 键 词: | 抗虫杂交棉 杂种优势 相关分析 |
文章编号: | 1001-8581(2005)03-0022-05 |
收稿时间: | 2005-04-10 |
修稿时间: | 2005-04-10 |
Comparison and Correlation Analysis for Heterosis of Pest- resistant Cotton Combinations |
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Abstract: | Several hybrid cotton combinations were bred by crossing among six pest-resistant cotton varieties and six traditional cotton varieties, and F_1 generations of 23 hybrid combinations among them were studied by heterosis comparison and correlation analysis. The results showed that combination K_6×K_5 had the strongest heterosis and the best comprehensive traits, followed by combinations B×K_2 and C×K_1. There was significant positive correlation between single boll weight and anti-parental heterosis, mid-parental heterosis, competitive heterosis (P<0.01). So selecting big-boll cotton variety as crossing parent is the main approach to breeding hybrid cotton combinations with strong heterosis. |
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Keywords: | Pest - resistant hybrid cotton Heterosis Correlation analysis |
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