| 细胞质雄性不育陆地棉的细胞质效应 |
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| 引用本文： | 王学德,张天真.细胞质雄性不育陆地棉的细胞质效应[J].作物学报,1997,23(4):393-399. |
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| 作者姓名： | 王学德 张天真 |
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| 作者单位： | 浙江农业大学农学系，浙江杭州，310029 |
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| 基金项目： | 江苏省自然科学基金资助项目 |
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| 摘 要： | 哈克尼西棉细胞质与陆地棉核互作不但引起花粉母细胞的败育，而且也影响到胚囊育性，具体表现与保持系比较，不育系的胚珠显著变小，不孕籽率显著变高和异常胚囊的增多，不育系不杂交，Ｆ１的花粉育性接种正常，但自交结铃率仍较低，表明哈克尼西棉不育细胞地对Ｆ１的育怀有一定程度的负效应。然而，这种负效应可以通过优良不育系和强恢复系的选与得以克服或减轻到不显著水平，在强优势组合（Ｆ１）中不育细胞质的负效应，不足以Ｆ１
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| 关 键 词： | 棉花 陆地棉 细胞质雄性不育 杂交育种 |
| 收稿时间： | 1995-09-12 |
| 修稿时间： | 1996-08-20 |
Cytoplasmic Effects of Cytoplasmic Male Sterile Upland Cotton |
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| Wang Xuede Zhang Tianzhen Pan JiajuZhejiang Agricultural University,Hangzhou, Nanjing Agricultural University,Nanjing.Cytoplasmic Effects of Cytoplasmic Male Sterile Upland Cotton[J].Acta Agronomica Sinica,1997,23(4):393-399. |
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| Authors: | Wang Xuede Zhang Tianzhen Pan JiajuZhejiang Agricultural University Hangzhou Nanjing Agricultural University Nanjing |
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| Institution: | Zhejiang Agricultural University, Hangzhou, 310029 |
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| Abstract: | Interaction between the cytoplasm of G. harknessu Brandegee and the nuclei ofupland cotton(G. hirsutum L. )not only caused abortion of the PMC but also influenced the fertility of the embryo sac. When compared with the maintainer lines, the volume of the ovule of the male sterile lines were significantly smaller and the ratio of abnormal embryo sacs or aborted seeds higher. When crossed with restorers, although the pollen fertility of the hybrids(F'1S) with the G. harknessii cytoplasm were nearly as normal as those of the hybrids with G. hirsutum cytoplasm , the setting ratios of selfpollinated bolls of the hybrids of the former were much lower, indicating that the G. harknessii cytoplasm has negative effects on the fertility of the hybrids. However, these negative effects could be overcome or alleviated in the significant level by using of better CMS lines and restorers, so that in combinations with strong heterosis not only could the negative effects be corrected by heterosis, they could even produce higher yield than the commercial cultivar"Zhong mian 12". |
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| Keywords: | Upland cotton Cytoplasmic male sterile |
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