水稻茎秆抗倒伏研究 |
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引用本文: | 张晋贤,阮冠,梁社坚.水稻茎秆抗倒伏研究[J].安徽农业科学,2012,40(23):11664-11667,11728. |
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作者姓名: | 张晋贤 阮冠 梁社坚 |
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作者单位: | 华南农业大学生命科学学院,广东广州,510642;华南农业大学生命科学学院,广东广州510642;华南农业大学亚热带农业生物资源保护与利用国家重点实验室,广东广州510642 |
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摘 要: | 目的]探讨水稻茎秆的性状与抗压强度的关系。方法]运用石蜡切片技术对10个水稻品种茎秆(包括3个节间)的形态、解剖特征进行系统研究;运用电子万能材料试验机技术测出各品种的抗压强度;对特征数据与茎秆抗压强度进行相关性分析。结果]相关性分析显示,茎的外径、横切面积与茎秆抗倒伏能力密切相关,可作为茎秆抗倒伏的重要参考因素。品种63两优636的外径和横切面积明显高于其他受测试品种,且3节间都具有较高的抗压强度,产量也高。结论]63两优636可作为水稻超高产的栽培品种。
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关 键 词: | 水稻 茎秆性状 抗压强度 抗倒伏 |
Lodging Resistance of Stems in Rice ( Oryza sativa L.) |
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Institution: | ZHANG Jin-xian et al(College of Life Science,South China Agricultural University,Guangzhou,Guangdong 510642) |
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Abstract: | Objective] The paper was to explore the relationship between character of rice stem and compressive strength.Method] The morphological and anatomical characters of stems of 10 rice varieties(including three internodes) were systematically studied by paraffin sectioning technology;the digital force tester was used to measure the compressive strengths of various varieties;the correlation between above-mentioned characters and stem compressive strengths was analyzed.Result] Correlation analysis showed that the outer diameter and cross-sectional area of stem had close relation with longing resistance of stem,which could be adopted as the important factors for stem longing resistance.The outer diameter and cross-sectional area of 63 Liangyou 636 was significantly higher than other tested varieties,three internodes all had high compressive strength,and the yield was also high.Conclusion] 63 Liangyou 636 could be used as the rice cultivar with super yield. |
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Keywords: | Oryza sativa Stem characters Compressive strength Lodging resistance |
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