| 基于叶绿素荧光光谱分析的黄瓜霜霉病害预测模型 |
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| 作者姓名： | Sui YY Yu HY Zhang L Qu JW Wu HW Luo H |
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| 作者单位： | 1. 吉林大学生物与农业工程学院,仿生工程教育部重点实验室,吉林长春130022
2. 吉林大学生物与农业工程学院,仿生工程教育部重点实验室,吉林长春130022;北华大学电气信息工程学院,吉林吉林市132021 |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目(2007AA10Z203)资助 |
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| 摘 要： | 为了实现对黄瓜病害的快速无损准确预测,基于激光诱导叶绿素荧光光谱分析技术,建立了温室黄瓜霜霉病害的预测模型.通过测定健康叶片、病菌接种3d叶片和接种6d叶片的光谱曲线,采用一阶导数光谱预处理方法,结合主成分分析数据降维方法对三组光谱数据进行特征信息提取后,建立主成分得分散点图,依据累积贡献率选取10个主成分代替导数光谱...
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| 关 键 词： | 荧光光谱 主成分分析 支持向量机 黄瓜霜霉病 |
Cucumber downy mildew prediction model based on analysis of chlorophyll fluorescence spectrum |
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| Sui YY,Yu HY,Zhang L,Qu JW,Wu HW,Luo H.Cucumber downy mildew prediction model based on analysis of chlorophyll fluorescence spectrum[J].Spectroscopy and Spectral Analysis,2011,31(11):2987-2990. |
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| Authors: | Sui Yuan-Yuan Yu Hai-Ye Zhang Lei Qu Jian-Wei Wu Hai-Wei Luo Han |
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| Institution: | SUI Yuan-yuan1,YU Hai-ye1,ZHANG Lei1,QU Jian-wei1,WU Hai-wei1,2,LUO Han1 1.Key Laboratory of Bionic Engineering,Ministry of Education,School of Biological and Agricultural Engineering,Jilin University,Changchun 130022,China 2.Electrical and Information Engineering College of Beihua University,Jilin 132021,China |
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| Abstract: | In order to achieve quick and nondestructive prediction of cucumber disease,a prediction model of greenhouse cucumber downy mildew has been established and it is based on analysis technology of laser-induced chlorophyll fluorescence spectrum.By assaying the spectrum curve of healthy leaves,leaves inoculated with bacteria for three days and six days and after feature information extraction of those three groups of spectrum data using first-order derivative spectrum preprocessing with principal components and... |
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| Keywords: | Fluorescence spectrum Principal components analysis Support vector machine Cucumber downy mildew |
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