| 水稻抗倒伏的材料学特性 |
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| 引用本文： | 赵建明,姜兴强,胡宁.水稻抗倒伏的材料学特性[J].北方水稻,2007(3):69-73. |
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| 作者姓名： | 赵建明 姜兴强 胡宁 |
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| 作者单位： | 1. 黑龙江农垦垦丰种业有限公司,哈尔滨,150088
2. 云南农业大学,农学院,昆明,650201 |
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| 摘 要： | 选用国内外31个表现优良的水稻品种为材料,研究水稻的材料学特性与抗倒伏性状的关系。结果表明:基部节间长、株高、相对重心、鲜重和秆长等对水稻的抗倒伏性状有较大的负效应;基部7 cm重、断面模数和弯曲应力对水稻的抗倒伏性状有较大的正效应,水稻倒伏的发生与其材料学特性有着复杂的关系;按照断面模数大、弯曲应力大、基部节间长和株高适中的方向进行选择,有利于水稻品种抗倒伏性状的改良。
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| 关 键 词： | 水稻 抗倒伏 相关分析 通径分析 |
| 文章编号： | 1673-6737（2007）03-0069-05 |
| 收稿时间： | 2007-04-20 |
| 修稿时间： | 2007-04-20 |
Materials Science Characteristics of Lodging Resistance in Rice |
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| ZHAO Jian-ming,JIANG Xing-qiang,HU Ning.Materials Science Characteristics of Lodging Resistance in Rice[J].Reclaiming and Rice Cultivation,2007(3):69-73. |
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| Authors: | ZHAO Jian-ming JIANG Xing-qiang HU Ning |
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| Institution: | 1 Heilongjiang Farm Reclamation Kenfeng Seed Company Ltd., Harbin, Heilongjiang 150088, China; 2 Yunnan Agricultural University, Kunming 650201, China |
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| Abstract: | The relationship between materials science characteristics of rice and lodging resistance properties was studied using 31 well-performanced rice varieties abroad and at home as entries.The results showed that basal internode length,plant height,relative center of gravity,fresh weight and stem length had great negative effect with lodging resistance;weight of basal seven centimeter stem,modulus of section and bending stress had great positive effect with lodging resistance.The occurrence of rice lodging had complex relations with materials science characteristics.Selection oriented to large modulus of section,large bending stress,mediate internode length and plant height is helpful to lodging resistance improvement in rice. |
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| Keywords: | Rice Lodging resistance Correlation analysis Path analysis |
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