| 辽宁省杂交粳稻产量构成及光合生理生态特性研究 |
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| 引用本文： | 韩勇,邓媛,沈枫,姜秀英,刘军,刘博.辽宁省杂交粳稻产量构成及光合生理生态特性研究[J].安徽农业科学,2008,36(5):1852-1855,1925. |
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| 作者姓名： | 韩勇 邓媛 沈枫 姜秀英 刘军 刘博 |
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| 作者单位： | 沈阳农业大学,辽宁沈阳,110161;辽宁省稻作研究所,辽宁沈阳,110101;辽宁省稻作研究所,辽宁沈阳,110101 |
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| 基金项目： | 辽宁省自然科学基金项目（20052132）. |
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| 摘 要： | 对辽宁省4个冠层形态具有一定差异但又具有较高产量水平的杂交粳稻组合与常规水稻品种辽粳294在籽粒灌浆期的光合生理生态特性进行了比较研究。结果表明:杂交粳稻各组合单株产量明显高于常规对照品种,每穴穗数比对照有所降低,每穗颖花数比对照高出很多,结实率和千粒重差别不大;各杂交组合的上功能叶叶面积和群体LAI都高于对照品种,各组合的叶绿素含量和光合速率平均值在灌浆初期与对照品种差别不明显,在水稻灌浆末期,各杂交组合的茎鞘干物质输出率差别较大。
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| 关 键 词： | 杂交粳稻 产量 光合特性 灌浆期 |
| 文章编号： | 0517-6611（2008）05-01852-04 |
| 收稿时间： | 2007-10-22 |
| 修稿时间： | 2007年10月22 |
Analysis on Yield Composition and Photosynthetic Physiology and Ecology Traits of Liaoning Japonica Hybrid Rice |
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| HAN Yong et al.Analysis on Yield Composition and Photosynthetic Physiology and Ecology Traits of Liaoning Japonica Hybrid Rice[J].Journal of Anhui Agricultural Sciences,2008,36(5):1852-1855,1925. |
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| Authors: | HAN Yong |
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| Abstract: | Photosynthetic physiology and ecology traits in milking stage research is studied on 4 kinds of japonica hybrid rice which have different canopies but the same higher output level compared with conventional rice variety Liaojing294.The results show that hybrid japonica rice have significantly higher individual plant yield than conventional variety,while have lower panicle numbers per hill,much higher spike numbers per panicle,and no difference in seed setting rate and thousand seed weight.Leaf area and colony LAI of upper functional leaves of hybrid combinations are larger than comparison variety.At earlier milking stage,all hybrid japonica combinations have no significant different chlorophyll content and average photosynthetic rate with comparison variety,while at the end of milking stage,dry matter exportation rates of all hybrid japonica combinations have larger difference. |
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| Keywords: | Hybrid japonica rice Yield Physiology and ecology trait Milking stage |
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