| 水稻根系特征与氮吸收利用效率关系的研究进展 |
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| 引用本文： | 刘磊,宋娜娜,齐晓丽,崔克辉.水稻根系特征与氮吸收利用效率关系的研究进展[J].作物杂志,2022,38(1):11-2. |
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| 作者姓名： | 刘磊 宋娜娜 齐晓丽 崔克辉 |
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| 作者单位： | 作物遗传改良国家重点实验室/农业农村部长江中游作物生理生态与耕作重点实验室/华中农业大学植物科学技术学院,430070,湖北武汉 |
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| 基金项目： | 国家自然科学基金(31671598)。 |
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| 摘 要： | 植物根系是活跃的物质代谢和吸收器官,对植株生物量积累、养分和水分高效吸收利用具有重要作用。本文主要综述了水稻根系形态、解剖、生理特征与氮吸收利用效率的关系以及不同氮效率品种根系特征的差异,并综述了促进根系生长和提高氮吸收利用效率的栽培调控措施,展望了未来水稻根系的研究方向,为水稻氮肥减施、氮高效栽培管理技术优化和氮高效品种选育提供理论依据。
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| 关 键 词： | 水稻 根系特征 氮吸收利用效率 品种选育 栽培调控 |
| 收稿时间： | 2021-05-15 |
Research Advances on the Relationship between Root Characteristics and Nitrogen Uptake and Utilization Efficiency in Rice |
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| Liu Lei,Song Nana,Qi Xiaoli,Cui Kehui.Research Advances on the Relationship between Root Characteristics and Nitrogen Uptake and Utilization Efficiency in Rice[J].Crops,2022,38(1):11-2. |
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| Authors: | Liu Lei Song Nana Qi Xiaoli Cui Kehui |
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| Institution: | National Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River of Ministry of Agriculture and Rural Affairs/College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China |
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| Abstract: | Plant root system is an actively metabolic and absorptive organ, which is tightly associated with the high-efficient uptake and utilization of nutrients and water. In this article, we examine the relationship of nitrogen uptake and utilization with the root morphological, anatomical, physiological characteristics in rice, and the root characteristics of rice varieties with different nitrogen utilization efficiency. In addition, we also summarize the cultivation measures widely used to increase nitrogen utilization efficiency by improving root growth in rice production. The future research on improving nitrogen uptake and utilization based on root characteristics in rice is also prospected in this paper. The review may provide insights for reducing nitrogen fertilizer application rate, developing optimal management techniques for high resource efficiency, and breeding of nitrogen high-efficiency varieties. |
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| Keywords: | Rice Root characteristics Nitrogen uptake and utilization efficiency Cultivar breeding Cultivation management |
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