| IRRI新株型稻杂种优势利用研究 |
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| 引用本文： | 陈亮,孙传清,姜廷波,李自超,王象坤.IRRI新株型稻杂种优势利用研究[J].华北农学报,2000,15(2):11-14. |
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| 作者姓名： | 陈亮 孙传清 姜廷波 李自超 王象坤 |
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| 作者单位： | 中国农业大学植物遗传育种系,北京,100094 |
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| 摘 要： | 利用目前国内两个较好的光（温）敏核不育系培矮６４ｓ和Ｎ４２２ｓ与国际水稻所选育的新株型稻、华北育成粳、东北育成粳、南亚Ａｕｓ稻、南方育成早、中籼稻杂交，考查Ｆ１的产量及产量构成因素。发现新株型稻与偏籼型的培矮６４ｓ配组在实粒数、单株穗数和单株粒重方面有些优势，但结实率偏低，如果把结实率的问题解决好，则新株型稻在我国的籼粳两系杂交稻育种中将有较好的应用价值。
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| 关 键 词： | 杂种优势 水稻 株型 育种 |
| 修稿时间： | 1999-03-04 |
Study on the Use of Heterosis of New Plant Type Rice Bred in IRRI |
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| CHEN Liang,SUN Chuan-qing,JIANG Ting-bo,LI Zi-chao,WANG Xiang-kun.Study on the Use of Heterosis of New Plant Type Rice Bred in IRRI[J].Acta Agriculturae Boreali-Sinica,2000,15(2):11-14. |
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| Authors: | CHEN Liang SUN Chuan-qing JIANG Ting-bo LI Zi-chao WANG Xiang-kun |
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| Abstract: | The heterosis of yield and its component of F 1 between two good photoperiod (thermo) sensitive genic male sterile lines, N422s and Peiai 64s, and IRRI's new plant type lines, newly improved japonica varieties of North China type and Northeast type, Aus varieties of South Asian and early and mediate indica varieties of South China are analyzed. The results showed that the cross combinations made by Peiai 64s and New plant type lines have strong heterosis in the fulled grain per plant, number of spike per plant and grain weight per plant, but the spike fertility is low. The new plant type lines can be used in the breeding program of the two line intersubspecies hybrid rice if the problem of low seed set is well solved. |
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| Keywords: | New plant type rice Heterosis |
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