| Mutagenic Improvement of Shattering Characteristic of the Restorer Line of a Hybrid Rice “Xieyou 9308” |
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| 作者姓名： | SHENSheng-quan CHENSheng-guang WUDian-xing XIAYing-wu SHUQing-yao |
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| 作者单位： | Institute of Nuclear Agricultural Sciences，Zhejiang University，Hangzhou 310029，China，China National Rice Research Institute，Hangzhou 310006，China |
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| 摘 要： | The newly developed hybrid rice combination "Xieyou 9308" (Xieqingzao A/T9308) has been regarded as a super-high-yielding rice variety, of which the yield potential reached as high as 12 t/ha. However, its high shattering characteristic (as high as 60%) has limited its wider application. In the current experiment, a non-shattering mutant line, M9308, was developed from T9308 by gamma irradiation. Comparisons were made but no marked differences were found between T9308 and M9308 as well as between their F1 hybrids crossed to Xieqingzao A for major agronomic and grain quality characters as well as resistance to diseases. Genetic analysis indicated that the non-shattering character of M9308 was governed by a single recessive gene.
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| 关 键 词： | 杂交水稻 协优9308品种 诱变育种 落粒特性 |
Mutagenic Improvement of Shattering Characteristic of the Restorer Line of a Hybrid Rice "Xieyou 9308" |
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| SHENSheng-quan CHENSheng-guang WUDian-xing XIAYing-wu SHUQing-yao.Mutagenic Improvement of Shattering Characteristic of the Restorer Line of a Hybrid Rice "Xieyou 9308"[J].Rice science,2004,11(4):222-224. |
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| Authors: | SHEN Sheng-quan CHEN Sheng-guang Wu Dian-xing XIA Ying-wu SHU Qing-yao |
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| Abstract: | The newly developed hybrid rice combination "Xieyou 9308" (Xieqingzao A/T9308) has been regarded as a super-high-yielding rice variety, of which the yield potential reached as high as 12 t/ha. However, its high shattering characteristic (as high as 60%) has limited its wider application. In the current experiment, a non-shattering mutant line, M9308, was developed from T9308 by gamma irradiation. Comparisons were made but no marked differences were found between T9308 and M9308 as well as between their F1 hybrids crossed to Xieqingzao A for major agronomic and grain quality characters as well as resistance to diseases. Genetic analysis indicated that the non-shattering character of M9308 was governed by a single recessive gene. |
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| Keywords: | hybrid rice non-shattering mutation high shattering character |
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