| 四川省杂交三系水稻品种的品质现状及改良措施 |
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| 引用本文： | 向珣朝,王宁.四川省杂交三系水稻品种的品质现状及改良措施[J].西南科技大学学报(哲学社会科学版),2001,18(1):7-9. |
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| 作者姓名： | 向珣朝 王宁 |
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| 作者单位： | 西南科技大学!绵阳621000(向珣朝)，四川省屏山县种子公司!四川屏山645300(王宁) |
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| 摘 要： | 分析表明 :四川省现有优质杂交水稻品种的理化指标与新国家标准相比 ,差距主要在垩白上。垩白的大小取决于抽穗后 5～ 2 0d的灌浆速度 ,其实质就是决定于品种自身的遗传特性。解决的主要措施 :( 1)充分利用现有优质种质资源 ,选育优质的父、母本 ;( 2 )注意粒形和千粒重的选择 ,椭圆形粒的千粒重最好不大于 2 5g ,长粒形的可放宽到 30 g。
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| 关 键 词： | 杂交水稻 垩白 千粒重 品质 |
| 文章编号： | 1007-7286(2001)01-0007-03 |
| 修稿时间： | 2000年2月26日 |
The Present Situation and cheuntermeasures of Qualities of Hybrid Rice Varieties in Sichuan |
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| Xiang Xunchao,.The Present Situation and cheuntermeasures of Qualities of Hybrid Rice Varieties in Sichuan[J].Journal of Southwest University of Science and Technology,2001,18(1):7-9. |
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| Authors: | Xiang Xunchao |
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| Abstract: | The analysis on the physical and cheomical indexes of present high quality hybrid rice varieties in Sichuan showed that in comparison with the new national standard of high quality rice, the main problem of the varieties from Sichuan was with higher chalkiness content. The chalkiness content was mainly determined by genetic factors. So the main measures to reducing chalkiness content are to breed high quality parents and to select the varieties which weight of 1000 grain is less than 25g. |
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| Keywords: | hybrid rice chalkiness weight of 1000 grains quality |
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