| 摘要: |
| 杂交亲和力上的中间型(即广亲和性品种)可以显著提高籼粳杂交 F1、F2代结实率(部分组合接近或达到正常结实率水平),不是所有的广亲和性品种都能作籼粳稻杂交的桥梁品种,广亲和性品种作桥梁品种必须具备三方面的条件:(1)能显著提高籼粳杂交的结实率,(2)广亲和性品种本身具有优良的农艺性状,(3)杂交后代具有较强的优势。 |
| 关键词: 水稻 广亲和性品种 结实率 杂种优势 |
| DOI： |
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| 基金项目: |
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| A STUDY ON RICE BREEDING OF INDICAJAPONICA CROSS BY USING BRIDGE VARIETY |
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| Abstract: |
| Intermediate type between indica and japonica(i.e.wide compatibili- ty variety)may be used to increase significantly the fertility of F1, F2 of indica-japonica crosses(some of them approached or reached to normal fertility).Not all of intermediate type varieties can be used as bridge variety of indica-japonica cross.Those wide compatibility varieti- es may be used as bridge varieties when they possess three factors:(1) They can significantly increase the fertility of F1,F2 plants of indi- ca-japonica crosse... |
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