| 判断玉米幼苗缺氮程度的叶绿素荧光动力学指标 |
| |
| 引用本文： | 徐爱东,邱念伟,娄苑颖. 判断玉米幼苗缺氮程度的叶绿素荧光动力学指标[J]. 植物营养与肥料学报, 2010, 16(2): 498-503. DOI: 10.11674/zwyf.2010.0235 |
| |
| 作者姓名： | 徐爱东 邱念伟 娄苑颖 |
| |
| 作者单位： | 1.济宁学院生命科学与工程系,山东曲阜 273100;& |
| |
| 基金项目： | 山东省高等学校科技计划项目，曲阜师范大学科研训练计划项目，济宁学院科研基金 |
| |
| 摘 要： | 为灵敏检测和判断作物的缺氮程度，科学指导施肥，分析了不同程度缺氮条件下玉米叶片光合活性变化和生长生理变化。结果表明: 随着缺氮程度的加重，玉米叶片光合色素和可溶性蛋白含量都显著下降； 叶片的光合能力显著降低，表现为玉米整株鲜重减小，根冠比增大，说明缺氮对玉米生长和叶片活性具有显著影响。叶绿素荧光动力学结果显示，缺氮处理的玉米叶片Fv/Fm、Fm/Fo、Sm、ETo/CSo、RC/CSo都显著低于对照，并随着缺氮程度的加重而逐渐减小，其中Sm对缺氮最为敏感，而ABS/CSo、TRo/CSo、DIo/CSo等荧光参数对缺氮不敏感。分析Sm与培养介质中氮素浓度的相关性看出，二者关系类似酶动力学曲线，表明叶绿素荧光动力学参数能灵敏检测出缺氮玉米叶片光合活性的变化，可作为判断玉米缺氮程度的指标。
|
| 关 键 词： | 玉米 缺氮 叶绿素荧光 |
| 收稿时间： | 2009-03-18 |
Using chlorophyll fluorescence indices to estimate nitrogen deficiency of maize seedlings |
| |
| XU Ai-dong,QIU Nian-wei,LOU Yuan-ying. Using chlorophyll fluorescence indices to estimate nitrogen deficiency of maize seedlings[J]. Plant Nutrition and Fertilizer Science, 2010, 16(2): 498-503. DOI: 10.11674/zwyf.2010.0235 |
| |
| Authors: | XU Ai-dong QIU Nian-wei LOU Yuan-ying |
| |
| Affiliation: | 1 College of Life Science, Jining University, Qufu, Shandong 273100, China; 2 College of Life Science, Qufu Normal University, Qufu, Shandong 273165, China |
| |
| Abstract: | To explore guidelines for nitrogen fertilization,nitrogen deficiency degree should be measured and estimated sensitively.Changes of leaf photosynthesis activity and physiological indices of maize were analyzed in this study.The results show that contents of soluble protein and pigments of maize leaves are decreased obviously along with the decrease of nitrogen concentration in the culture solution,and as well as photosynthesis activity of maize leaves and whole plant fresh weight,While the ratios of root to... |
| |
| Keywords: | maize nitrogen deficiency chlorophyll fluorescence transient |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《植物营养与肥料学报》浏览原始摘要信息 |
|
点击此处可从《植物营养与肥料学报》下载全文 |
