| 夏玉米不同生育阶段干湿变化的补偿效应研究 |
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| 引用本文： | 李凤英,黄占斌. 夏玉米不同生育阶段干湿变化的补偿效应研究[J]. 中国生态农业学报, 2001, 9(3): 61-63 |
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| 作者姓名： | 李凤英 黄占斌 |
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| 作者单位： | 1. 江西农业大学国土资源与环境学院,南昌,330045
2. 中国科学院,水利部,水土保持研究所,杨陵,712100 |
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| 基金项目： | 国家重点基础研究(973)项目(G19990117)和陕西省自然科学基金共同资助 |
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| 摘 要： | 通过玉米单阶段和双阶段干旱及复水处理的小区试验研究证明，补偿效应是作物生长发育中存在的一种生存本能，其表现有产量、生长和生理等方面，苗期旱后的拔节期复水存在生长超补偿效应和较大产量补偿效应，其生理补偿效应可持续到抽雄期；抽雄期干旱的产量和水分利用效率明显降低，苗期、拔节期连续干旱则产量最低。
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| 关 键 词： | 干湿变化 生育阶段 玉米 补偿效应 |
| 收稿时间： | 2000-03-01 |
| 修稿时间： | 2000-03-01 |
A study on compensatory effect of corn at different growth stages to water deficit change |
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| LI Feng-Ying and HUANG Zhan-Bin. A study on compensatory effect of corn at different growth stages to water deficit change[J]. Chinese Journal of Eco-Agriculture, 2001, 9(3): 61-63 |
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| Authors: | LI Feng-Ying and HUANG Zhan-Bin |
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| Affiliation: | College of Resources and Environment,Jiangxi Agricultural University,Nanchang 330045;Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100 |
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| Abstract: | In order to understand compensatory effect of corn at different growth stages to water deficit changes,the experiment was conducted in field plots.The results showed that compensatory effect is a fundmental capacity in crop life,which can be expressed in three types:yield,growth and physiological action.Under drought at seedling stage and water-recovering at jointing stage,there is a super compensatory effect on plant growth,great yield effect,and physiological effect until tasseling stage of corn.The yield and water use efficiency decrease markedly under drought at tasseling stage,and the yield is the lowest under drought at seedling and jointing stages. |
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| Keywords: | Water deficit change Growth stage Corn Compensatory effect |
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