| 贵州稻种资源双(多)胚材料的筛选初报 |
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| 引用本文： | 金桃叶,张再兴,陈惠查,阮仁超,杨玉顺,游俊梅.贵州稻种资源双(多)胚材料的筛选初报[J].贵州农业科学,1999,27(6):44-46. |
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| 作者姓名： | 金桃叶 张再兴 陈惠查 阮仁超 杨玉顺 游俊梅 |
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| 作者单位： | 贵州省农业科学院水稻研究所,贵阳,550006 |
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| 摘 要： | 利用异位胚作为识别标准，对２０９４份国内外品种进行了双（多）胚或双（多）生苗的筛选鉴定，结果发现双Ａ３２、双Ａ３３、双Ａ３４、双Ａ３５和双Ａ４０等５个品系双（多）苗频率交高，达１０．８６％～２０．１４％，将这５个品系分别与显性遗传标记紫色稻进行正反交测验表明，正交Ｆ１其绿苗应是由不定胚形成的，其植株在形态特性、结实率、千粒重等与平本相似，反交Ｆ１则均为紫苗；对１８个双苗品系在不授粉吓通过化学的药物
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| 关 键 词： | 水稻 双(多)胚苗 无融合生殖 固定杂种优势 |
| 修稿时间： | 1999-08-06 |
Screening and Observation on Poly-embryonic Seedlings in Rice Germplasm Resources of Guizhou |
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| JIN Tao-ye,ZHANG Zai-xing,CHEN Hui-cha,RUAN Ren-chao,YANG Yu-shun,YOU Jun-mei.Screening and Observation on Poly-embryonic Seedlings in Rice Germplasm Resources of Guizhou[J].Guizhou Agricultural Sciences,1999,27(6):44-46. |
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| Authors: | JIN Tao-ye ZHANG Zai-xing CHEN Hui-cha RUAN Ren-chao YANG Yu-shun YOU Jun-mei |
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| Abstract: | The
occurrence frequency of poly-embryonic seedlings in 2094 rice varieties collected from
different regions in Guizhou was investigated. The results showed that some strains such
as Shuang A32, Shuang A33, Shuang A34, Shuang A35 and Shuang A40 were higher than that of
others, reaching 10.86% to 20.14%. By reciprocal crossing with purple rice variety as
dominant genetic marks, F1 expressed more purople seedlings but less green
ones. Under no-pollination conditions,18 strains containing poly-embryonic seedlings were
also treated by medicine to induce parthenogenetic reproduction in the study. |
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