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| 玉米幼苗根系形态对芘污染的响应 | |
| 引用本文： | 许超,夏北成,林小方,陈倩婷,谭嘉宝.玉米幼苗根系形态对芘污染的响应[J].生态环境,2010,19(4):776-781. |
| 作者姓名： | 许超 夏北成 林小方 陈倩婷 谭嘉宝 |
| 作者单位： | 1. 华南农业大学资源与环境学院,广东,广州510642;中山大学环境科学与工程学院,广东,广州,510275;农业部生态农业重点开放实验室,广东,广州,510642 2. 中山大学环境科学与工程学院,广东,广州,510275 3. 华南农业大学资源与环境学院,广东,广州510642 |
| 基金项目： | 广东省自然科学基金，广东省自然科学基金团队项目，华南农业大学校长基金，华南农业大学大学生科技创新项目 |
| 摘 要： | 采用盆栽试验探讨了玉米（Zea mays L.）根系形态学参数（根质量长度、根质量面积、根质量体积、根平均直径及不同根直径等级分布）对不同浓度芘污染胁迫的响应。较低浓度芘可适当地刺激玉米的生长,高浓度芘处理抑制了玉米的生长,并且抑制作用随芘处理浓度的提高而增强;芘对玉米根系的影响要大于对茎叶的影响。不同浓度芘处理下玉米根系形态学参数发生了显著的变化,与对照相比,芘处理下根直径显著降低,根质量长度、根质量面积和根质量体积显著增大,且随芘处理浓度的提高其效应更显著。 |
| 关 键 词： | 芘 玉米 根系形态学 |
Response of root morphology of maize (Zea mays L.) seedling to pyrene contamination in soil |
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| XU Chao,XIA Beicheng,LIN Xiaofang,CHEN Qianting,TAN Jiabao.Response of root morphology of maize (Zea mays L.) seedling to pyrene contamination in soil[J].Ecology and Environmnet,2010,19(4):776-781. | |
| Authors: | XU Chao XIA Beicheng LIN Xiaofang CHEN Qianting TAN Jiabao |
| Institution: | 1.College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510642,China;2.School of Environmental Science and Engineering,Sun Yat-sen University,Guangzhou 510275,China;3.Key Laboratory of Ecological Agriculture of Ministry of Agriculture of the People’s Republic of China,Guangzhou 510642,China ) |
| Abstract: | Pot experiment was conducted to study the effect of pyrene contamination on the maize seedling root growth,including qualitative parameters of root morphology like specific root length(SRL),specific root surface area(SRA),specific root volume(SRV),average root diameter(ARD),and distribution of root diameter classes of maize were evaluated at an early growth stage.Maize growth was slightly improved at the lower pyrene concentration,while inhibited at higher pyrene concentration,and the effect enhanced with i... |
| Keywords: | pyrene maize root morphology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |