| 幂指数模型模拟玉米弯孢菌叶斑病传播梯度的试验 |
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| 引用本文： | 李海春,傅俊范,潘荣光,李金堂.幂指数模型模拟玉米弯孢菌叶斑病传播梯度的试验[J].沈阳农业大学学报,2005,36(3):304-306. |
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| 作者姓名： | 李海春 傅俊范 潘荣光 李金堂 |
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| 作者单位： | 1. 沈阳农业大学,植物保护学院,沈阳,110161
2. 辽宁农业科学院,植物保护研究所,沈阳,110161 |
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| 基金项目： | 农业部国家粮丰工程项目（2004BA520A11）,辽宁省自然科学基金项目（9910100301）,辽宁省科技攻关招标项目（99214001、2001214001） |
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| 摘 要： | 采用人工接种方法，在田间造成玉米弯孢菌叶斑病不同的发病梯度。利用SAS统计软件构建了该病害传播梯度的幂指数模型，结果表明幂指数模型可以模拟该病害传播动态，同时推导该病害在一个月最远传播距离为16m，两个月最远传播距离为28m。
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| 关 键 词： | 玉米弯孢菌叶斑病 传播梯度 幂指数函数 最远传播距离 |
| 文章编号： | 1000-1700(2005)03-0304-03 |
| 收稿时间： | 07 20 2004 12:00AM |
| 修稿时间： | 2004年7月20日 |
Power Model of Disease Gradient Model of Curvularia lunata in Maize |
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| LI Hai-chun,FU Jun-fan,PAN Rong-guang,Li Jin-tang.Power Model of Disease Gradient Model of Curvularia lunata in Maize[J].Journal of Shenyang Agricultural University,2005,36(3):304-306. |
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| Authors: | LI Hai-chun FU Jun-fan PAN Rong-guang Li Jin-tang |
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| Institution: | 1.College of Plant Protection, Shenyang Agricultural University; Shenyang 110161, China, 2. Plant Protection Institution, Liaoning Academy of Agricultural Sciences, Shenyang 110161,China |
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| Abstract: | According to the principles of plant disease epidemiology,the dynamics of spread of this disease was studied by artificial inoculation which caused the disease of Curvularia lunata in Maize in experimental fields.Power model,which was established with the software for SAS,could simulate the disease gradient of Curvularia lunata in Maize cultivar's Yeddan 13.The furthest spread distance of the disease was about 16m and 28m within one and two mouths in the growth season in Shenyang region. |
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| Keywords: | Curvularia lunata disease gradient power funtion the furthest distance of disease Spread |
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