| 水稻不育系261S矮化突变体及其F_1‘新闵优香粳’杂交稻的性状分析 |
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| 引用本文： | 杨瑞,周永国,张建中,陆雯灏,邱梅红,李建粤.水稻不育系261S矮化突变体及其F_1‘新闵优香粳’杂交稻的性状分析[J].西北植物学报,2009,29(10). |
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| 作者姓名： | 杨瑞 周永国 张建中 陆雯灏 邱梅红 李建粤 |
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| 作者单位： | 杨瑞,陆雯灏,邱梅红,李建粤(上海师范大学,生命与环境科学学院,上海,200234);周永国(上海师范大学,生命与环境科学学院,上海,200234;上海市实验学校西校,上海,201102);张建中(上海市农业技术推广服务中心,上海,201103) |
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| 基金项目： | 上海市科学技术委员会科研计划引导项目 |
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| 摘 要： | 以两系杂交稻'闵优香粳'品种的父本W香99075和母本不育系261S及其261S矮化突变株系为材料,对两种母本及其F1植株分别进行形态特征、产量和F2稻米品质比较分析,以明确不育系261S矮化突变株系的育种应用价值.结果显示:(1)不育系261S矮化突变株系与原不育系261S相比,花粉不育性相似,株高、穗长、千粒重分别极显著降低13.8 cm、4.5 cm、5.2 g,但有效穗比原不育系261S极显著增加62.8%;(2)261S矮化突变株系×W香99075组合的F1"新闵优香粳"植株高度较'闵优香粳'极显著降低11 cm,而单株产量两者差异不显著;(3)两组合F2稻米胶稠度和碱消值几乎没有变化,但"新闵优香粳" 比'闵优香粳'的蛋白质含量提高9.57%、直链淀粉含量极显著降低10.17%,稻米品质较优.研究表明,以植株较矮、分蘖性较强、单株有效穗多的261S矮化突变株系为母本与W香99075杂交,可在不影响杂交稻产量表现的基础上有效降低原品种'闵优香粳'植株的高度,同时稻米品质也得到改善;说明261S矮化突变株系可作为水稻两系杂交育种的新不育系材料.
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| 关 键 词： | 不育系261S 261S矮化突变体 杂交稻 株高 产量 品质 |
The Characters Analyses of the Dwarfing Mutant Strain of the Male Sterile Line 261S and the Hybrid Rice 'New Minyouxiangjing' |
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| YANG Rui,ZHOU Yong-guo,ZHANG Jian-zhong,LU Wen-hao,QIU Mei-hong,LI Jian-yue.The Characters Analyses of the Dwarfing Mutant Strain of the Male Sterile Line 261S and the Hybrid Rice 'New Minyouxiangjing'[J].Acta Botanica Boreali-Occidentalia Sinica,2009,29(10). |
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| Authors: | YANG Rui ZHOU Yong-guo ZHANG Jian-zhong LU Wen-hao QIU Mei-hong LI Jian-yue |
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| Institution: | YANG Rui1,ZHOU Yong-guo1,3,ZHANG Jian-zhong2,LU Wen-hao1,QIU Mei-hong1,LI Jian-yue1(1 College of Life , Environment Science,Shanghai Normal University,Shanghai 200234,China,2 Shanghai Agriculture Technology Extend , Service Centre,Shanghai 201103,3 Shanghai West Experimental School,Shanghai 201102,China) |
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| Abstract: | The male parent WX99075 rice of the two-line hybrid rice 'Minyouxiangjing',and the male-sterile female parents 261S rice and the 261S dwarfing mutant strain rice were used as research materials,and the morphologies,grain yields of two male-sterile parents and two F1 populations and F2 grain qualities were compared for confirming if the 261S dwarfing strain could be available on breeding application.The results were as follows:(1)The pollen sterility of the 261S dwarfing strain was similar to that of the 261... |
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| Keywords: | male sterile line 261S 261S dwarfing mutant hybrid rice plant height grain yield quality |
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