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| CO2和温度升高情况下白粉菌侵染对西葫芦生长特性的影响 | |
| 引用本文： | 刘俊稚,葛亚明,田光明. CO2和温度升高情况下白粉菌侵染对西葫芦生长特性的影响[J]. 生态学报, 2011, 31(2): 491-497 |
| 作者姓名： | 刘俊稚 葛亚明 田光明 |
| 作者单位： | 1. 浙江大学环境工程系,杭州,310029;Centre of Competence in the Agro-environmental Sector (AGROINNOVA),University of Torino,Grugliasco 10095,Italy 2. 浙江大学环境工程系,杭州,310029 3. Centre of Competence in the Agro-environmental Sector (AGROINNOVA),University of Torino,Grugliasco 10095,Italy |
| 基金项目： | 欧盟亚链资助项目(CN/ASIALINK/028) |
| 摘 要： | 植物病害是降低植物产量和产品品质的重要因素,但对其在气候变化情景下如何影响植物的研究鲜见报道。利用封闭式人工气候室模拟不同环境处理,探讨了大气CO2浓度增加和温度升高情况下白粉菌(Podosphaera xanthii)侵染对西葫芦(Cucurbita pepo)生长发育的影响。结果表明,单独CO2加富(EC)增强了西葫芦光合作用(P<0.05),促进了植株生长和果实生产;CO2浓度和温度同时升高(ECT)也促进了光合作用(P<0.05),加速了植株器官发育,但限制了叶片叶绿素合成和叶片面积生长,最终明显降低了植株地上部分干物质积累和果实产量(P<0.05)。和对照相比,EC处理下白粉菌的生长繁殖没有明显变化,但由于西葫芦植株的抗病性有所改善,植株病情指数略有下降;而ECT处理下白粉菌的发育繁殖明显改善,P. xanthii菌落规模和产孢能力极大提高(P<0.01),植物病情指数显著加重(P<0.01),作物严重减产(P<0.01)。可见,在未来以CO2浓度和温度升高为特征的气候变化条件下,白粉菌倾向于加重对西葫芦的侵染。这个结论对其他葫芦科白粉病的防治管理也有借鉴作用。 |
| 关 键 词： | 全球气候变化 西葫芦 白粉菌 植物病害 生长特性 |
| 收稿时间： | 2009-12-10 |
| 修稿时间： | 2010-02-06 |
Effects of powdery mildew infection on zucchini growth under elevated CO2 and temperature |
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| LIU Junzhi,GE Yaming and TIAN Guangming. Effects of powdery mildew infection on zucchini growth under elevated CO2 and temperature[J]. Acta Ecologica Sinica, 2011, 31(2): 491-497 | |
| Authors: | LIU Junzhi GE Yaming TIAN Guangming |
| Affiliation: | Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China; Centre of Competence in the Agro-environmental Sector (AGROINNOVA), University of Torino, Grugliasco 10095, Italy;Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China;Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China |
| Abstract: | It is well established that global climate change is currently occurring as a result of human activities and its potential effects has become a focus of recent research.Though there were many reports on plant diseases that cause significant loss in both yield and quality of many crops throughout the world,it is rarely known how disease infection would influence plants under the global climate change.In this study,we investigated the potential impacts of powdery mildew(Podosphaera xanthii) infection on zucch... |
| Keywords: | global climate change Cucurbita pepo Podosphaera xanthii plant diseases growth characteristics |
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