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| 氮素对小麦不同叶位叶片叶绿素荧光参数的调控效应 | |
| 引用本文： | 谭雪莲,郭天文,张国宏,张绪成,王引权. 氮素对小麦不同叶位叶片叶绿素荧光参数的调控效应[J]. 麦类作物学报, 2009, 29(3) |
| 作者姓名： | 谭雪莲 郭天文 张国宏 张绪成 王引权 |
| 作者单位： | 1. 甘肃省农业科学院旱地农业研究所,农业部西北作物抗旱栽培与耕作重点开放实验室,甘肃兰州,730070 2. 甘肃省农业科学院旱地农业研究所,农业部西北作物抗旱栽培与耕作重点开放实验室,甘肃兰州,730070;中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌,712100 3. 甘肃中医学院药学系,甘肃兰州,730000 |
| 基金项目： | 甘肃省中青年科技基金，黄土高原土壤侵蚀与旱地农业国家重点实验室开放基金 |
| 摘 要： | 为了解氮素对小麦不同叶位叶片光合能量利用的影响,测定和分析了旱地和水地小麦品种在3个氮素水平下不同叶位叶片的叶绿素荧光参数.结果表明,随氮素水平的提高,小麦幼苗叶片最大荧光(Fm)、可变荧光(Fv)、PSⅡ最大光化学效率(Fv/Fm)、PSⅡ潜在活性(Fv/Fo)和非光化学猝灭系数(qN)都呈上升趋势,而光化学猝灭系数(qP)则呈下降趋势;但旱地品种叶片荧光参数对氮素更敏感,旱地品种小麦幼苗叶片的Fm、Fv、 Fv/Fm、Fv/Fo和qN均高于水地品种,qP低于水地品种.旱地和水地品种在不同氮素处理下各叶位叶绿素荧光参数表现不同,光合能量利用随叶位的降低逐渐升高. |
| 关 键 词： | 小麦 氮素水平 叶位 叶绿素荧光参数 |
Regulation of Nitrogen Level on Chlorophyll Fluorescence of Wheat Leaves at Different Positions |
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| TAN Xue-lian,GUO Tian-wen,ZHANG Guo-hong,ZHANG Xu-cheng,WANG Yin-quan. Regulation of Nitrogen Level on Chlorophyll Fluorescence of Wheat Leaves at Different Positions[J]. Journal of Triticeae Crops, 2009, 29(3) | |
| Authors: | TAN Xue-lian GUO Tian-wen ZHANG Guo-hong ZHANG Xu-cheng WANG Yin-quan |
| Affiliation: | 1.Key Laboratory of Northwest Drought-resistant Crop Farming;Ministry of Agriculture;Institute of Dryland Agriculture;Gansu Academy of Agricultural Sciences;Lanzhou;Gansu 730070;2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau;Institute of Soil and Water Conservation;Chinese Academy of Sciences;Yangling;Shaanxi 712100;3.Gansu College of Tranditional Chinese Medicine;Gansu 730000;China |
| Abstract: | Effects of three nitrogen levels on chlorophyll fluorescence of different position leaves of dryland and irrigated wheat seedlings were studied to investigate the effects of nitrogen on photosynthetic energy use.The results indicated that Fm,Fv,Fv / Fm,Fv / Fo,qN of different position leaves in dryland and irrigated wheat seedling were increased with the increase of nitrogen fertilizer,and qP was opposite,but wheat growing of dryland variety was more sensitive to nitrogen treatment.,Fm,Fv,Fv/Fm,Fv/Fo and qN... |
| Keywords: | Wheat Nitrogen rate Leaf position Chlorophyll fluorescence |
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