| 水稻穗型与抗倒伏性关系的初步分析 |
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| 引用本文： | 徐正进,张树林,周淑清,刘丽霞.水稻穗型与抗倒伏性关系的初步分析[J].植物生理学通讯,2004,40(5):561-563. |
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| 作者姓名： | 徐正进 张树林 周淑清 刘丽霞 |
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| 作者单位： | 沈阳农业大学水稻研究所,农业部作物生理生态遗传育种重点开放实验室,辽宁省北方粳稻育种重点实验室,沈阳,110161 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 理论分析和物理模拟测定的结果表明,穗型通过使茎秆弯曲的力矩-弯矩和重心高度影响抗倒伏性:弯矩增大和重心升高,抗倒伏性降低;反之,则抗倒伏性升高.弯矩随颈穗弯曲度变化的幅度明显大于重心,因此,弯曲穗型弯矩增加的幅度大而重心降低的幅度小,对抗倒伏性的影响明显大于直立穗型,这可能是北方粳稻直立穗型品种一般抗倒伏性较强的力学基础.
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| 关 键 词： | 水稻 抗倒伏性 穗型 |
| 修稿时间： | 2003年12月29 |
Primary Analysis of Relationship Between Rice Panicle Type and Lodging Resistance |
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| XU Zheng-Jin,ZHANG Shu-Lin,ZHOU Shu-Qing,LIU Li-XiaKey Laboratory of Crop Physiology,Ecology,Genetics and Breeding,Ministry of Agriculture, Key Laboratory of NorthernJaponica Rice Breeding of Liaoning, Rice Institute of Shenyang Agricultural University,Shenyang.Primary Analysis of Relationship Between Rice Panicle Type and Lodging Resistance[J].Plant Physiology Communications,2004,40(5):561-563. |
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| Authors: | XU Zheng-Jin ZHANG Shu-Lin ZHOU Shu-Qing LIU Li-XiaKey Laboratory of Crop Physiology Ecology Genetics and Breeding Ministry of Agriculture Key Laboratory of NorthernJaponica Rice Breeding of Liaoning Rice Institute of Shenyang Agricultural University Shenyang |
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| Institution: | XU Zheng-Jin*,ZHANG Shu-Lin,ZHOU Shu-Qing,LIU Li-XiaKey Laboratory of Crop Physiology,Ecology,Genetics and Breeding,Ministry of Agriculture, Key Laboratory of NorthernJaponica Rice Breeding of Liaoning, Rice Institute of Shenyang Agricultural University,Shenyang 110161 |
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| Abstract: | Based on theoretical analysis and physical simulated tests, the result showed that rice panicle typeaffected lodging resistance by bending moment (moment of making straw curved) and barycenter, the lodgingresistance decreased with the bending moment increaseing or barycenter lifting. It is evident that the range ofdegree of curvature of rice panicle with bending moment variation was stronger than that of barycenter. Theresult indicated that the affection of curved panicle type to lodging resistance was stronger than that of erectpanicle type because of bending moment of curved panicle type increased larger and barycenter decreased less.Thus it is perhaps the mechanical base for the lodging resistance of erect panicle type of japonica in north ofChina was stronger. |
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| Keywords: | rice lodging resistance panicle type |
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