| 甘薯早代品系部分数量性状的遗传相关分析 |
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| 引用本文： | 周清元,张建奎,王季春,唐道彬,王丽华.甘薯早代品系部分数量性状的遗传相关分析[J].西南农业大学学报,2001,23(3):222-224,266. |
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| 作者姓名： | 周清元 张建奎 王季春 唐道彬 王丽华 |
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| 作者单位： | 西南农业大学农学系，重庆400716 |
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| 基金项目： | 西南农业大学专项科研基金项目(97002) |
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| 摘 要： | 选用12个甘薯杂交组合的136个品系的无性1代和2代的7个农艺性状与鲜重进行相关分析和通径分析，并估算其遗传率。结果表明，大中薯重在两代的选择中都是重点考虑的因素。鲜薯重、大中薯重、地上部重等经济性状的遗传率不高，在早代品系选择时要综合其他性状。
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| 关 键 词： | 甘薯 数量性状 相关分析 通径分析 遗传率 |
| 文章编号： | 1000-2642(2001)03-0222-03 |
STUDY ON HEREDITY AND CORRELATION OF SOME QUANTITATIVE CHARACTERS OF SWEET POTATO IN THEIR EARLY GENERATION STRAINS |
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| ZHOU Qing-yuan,ZHANG Jian-kui,WANG Ji-chun,TANG Dao-bin,WANG Li-hua.STUDY ON HEREDITY AND CORRELATION OF SOME QUANTITATIVE CHARACTERS OF SWEET POTATO IN THEIR EARLY GENERATION STRAINS[J].Journal of Southwest Agricultural University,2001,23(3):222-224,266. |
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| Authors: | ZHOU Qing-yuan ZHANG Jian-kui WANG Ji-chun TANG Dao-bin WANG Li-hua |
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| Abstract: | Correlation and path analyses were made of 7 agronomic characters and fresh weight in the first and second asexual generation of 136 strains derived from 12 cross combinations of sweet potato (Ipomoea batata Lam.) and their heritability was estimated. It is suggested that priority should be given to the weight of big-sized and middle-sized tubers in selection in the two early generations. Fresh tuber weight, big-sized and middle-sized tuber weight and vine yield showed low heritability, indicating that in selection work in the early generations, selection for these characters should be combined with other agronomic characters. |
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| Keywords: | sweet potato (Ipomoea batata Lam ) quantitative character correlation analysis path analysis heritability |
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