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| 近地层臭氧浓度升高对常规稻颖花形成的影响：FACE研究 | |
| 引用本文： | 王云霞,杨开放,杨连新,朱建国,王余龙.近地层臭氧浓度升高对常规稻颖花形成的影响：FACE研究[J].农业环境科学学报,2011,30(8). |
| 作者姓名： | 王云霞 杨开放 杨连新 朱建国 王余龙 |
| 作者单位： | 1. 扬州大学江苏省作物遗传生理重点实验室/农业部长江中下游作物生理生态与栽培重点开放实验室,江苏扬州,225009 2. 中国 科学院南京土壤研究所,南京,210008 3. Department of Global Agricultural Sciences, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan |
| 基金项目： | 国家科技部国际科技合作计划项目(2009DFA31110); 国家自然科学基金项目(30871486,30771275); 江苏省高校自然科学重大基础研究项目(08KJA210003); 日本环境厅全球环境研究基金项目(C-062); 江苏省“333高层次人才培养工程”项目(2009); 中国科学院国际合作重点项目(GJHZ0748) |
| 摘 要： | FACE(free air gas concentration enrichment)研究使用标准的作物管理技术,在完全开放的大田条件下运行,代表了目前人类对未来大气环境的最好模拟。利用独特的大型稻田FACE平台,以典型的常规水稻品种武粳15(粳稻)和扬稻6号(籼稻)为供试材料,研究近地层臭氧(O3)浓度升高(比大气背景臭氧浓度平均增高26%)对常规水稻颖花形成的影响。结果表明:(1)高浓度O3对供试品种全穗以及一、二次枝梗颖化分化数均无显著影响;(2)高浓度O3使供试品种全穗和二次枝梗颖花退化数和退化率均显著增加,颖花退化增多是由于现存一次枝梗上二次枝梗大量退化而引起的二次颖花退化所造成;(3)颖花退化数在颖花分化数中所占比例很低,故高浓度O3对两供试品种全穗和一、二次枝梗颖花现存数以及稻穗构成均无显著影响。结合前报可知,选用常规水稻品种以及增施保花肥可能是未来近地层高浓度O3环境下稻作生产重要的适应措施。 |
| 关 键 词： | FACE(free air gas concentration enrichment) 臭氧浓度升高 常规水稻 颖花 分化 退化 |
Effect of Increased Surface Ozone Concentration on Spikelet Formation of Inbred Rice Cultivars:A Free Air Gas Concentration Enrichment(FACE) Experiment |
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| WANG Yun-xia,YANG Kai-fang,YANG Lian-xin,ZHU Jian-guo,Kazuhiko Kobayashi,WANG Yu-long.Effect of Increased Surface Ozone Concentration on Spikelet Formation of Inbred Rice Cultivars:A Free Air Gas Concentration Enrichment(FACE) Experiment[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2011,30(8). | |
| Authors: | WANG Yun-xia YANG Kai-fang YANG Lian-xin ZHU Jian-guo Kazuhiko Kobayashi WANG Yu-long |
| Institution: | WANG Yun-xia1,YANG Kai-fang1,YANG Lian-xin1*,ZHU Jian-guo2,Kazuhiko Kobayashi3,WANG Yu-long1(1.Key Laboratory of Crop Genetics & Physiology of Jiangsu Province /Key Laboratory of Crop Physiology,Ecology and Cultivation in Middle and Lower Reaches of Yangtze River of Ministry of Agriculture,Yangzhou University,Yangzhou 225009,China,2.Institute of Soil Science,Chinese Academy of Science,Nanjing 210008,3.Department of Global Agricultural Sciences,Graduate School of Agricultural and Life Sciences,Universi... |
| Abstract: | Free air gas concentration enrichment(FACE) experiment,conducted in fully open-air field condition using regional standard agronomic practices,represents the best simulations of future atmospheric environment.To investigate the impact of high ozone concentration(O3]) on spikelet differentiation and degeneration of inbred rice cultivars,an experiment using a unique free-air ozone concentration enrichment(ozone-FACE) system was conducted in Yangzhou,China.Two typical inbred rice cultivars,Wujing15(Japonica,W... |
| Keywords: | FACE(free air gas concentration enrichment) elevated ozone concentration([O3]) inbred rice spikelet differentiation degeneration |
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