| 芝麻（Sesamum indicum L．）根系的解剖结构与耐涝强度的相关性研究 |
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| 引用本文： | 李景原,李扬汉,李焜章,王太霞.芝麻（Sesamum indicum L．）根系的解剖结构与耐涝强度的相关性研究[J].河南师范大学学报(自然科学版),1996(1). |
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| 作者姓名： | 李景原 李扬汉 李焜章 王太霞 |
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| 作者单位： | 河南师范大学生物系，南京农业大学杂草研究室 |
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| 基金项目： | 河南省教委自然科学基金 |
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| 摘 要： | 本文用常规石蜡切片法观察了耐涝芝麻品种根系与怕涝芝麻品种根系解剖结构的区别。用改良的丹尼管法测量了芝麻茎叶部分向根系输送氧气的数量，探讨了芝麻的抗涝机理。研究结果证明：耐涝芝麻品种根系具有皮层厚。皮层细胞呈柱状排列，皮层细胞间隙大等结构特征。当根系渍水时，耐涝芝麻品种的茎叶能向根系输送较多氧气，在一定程度上缓解了根系缺氧的状况。
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| 关 键 词： | 芝麻 根系 解剖结构 耐涝强度 |
Study on the Interrelation Between Anatonical Structure of Root and Water-loggingEndurance of Sesamunindicum. L. |
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| Li Jing yuan,Li Yanghan,Li Kunzhang,Wang Taixia.Study on the Interrelation Between Anatonical Structure of Root and Water-loggingEndurance of Sesamunindicum. L.[J].Journal of Henan Normal University(Natural Science),1996(1). |
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| Authors: | Li Jing yuan Li Yanghan Li Kunzhang Wang Taixia |
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| Abstract: | Anatomical Structure of roots of three sesame varieties varieties different water-loggingendurance were investigated wi th ordinary paraffin method.The quantitatives of downward oxygentransported from shoots to root systems were estimated with Deny Tube.The anatomical characteristicsof roots in water-logging varieties were as followed:thick coxtcx,large intercellular space andcolumnar arrangement of cortical cells.When the root systems of water-logging endurable sesamebreeds are flooded, their shoots can transport more oxygen to non-ereated root systems. |
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| Keywords: | sesamum indicum root system anatomical structure water-logging endurance |
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