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《Spectroscopy and Spectral Analysis》 2010-11
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Research on Zinc Content in Leaf of Olinda Valencia Orange Using Visible Near Infrared Spectroscopy Model

YI Shi-lai 1,2,3,DENG Lie1,2,3,HE Shao-lan1,2,3,ZHENG Yong-qiang1,2,3,WANG Liang1,ZHAO Xu-yang1 1.Citrus Research Institute,Southwest University,Chongqing 400712,China 2.Citrus Research Institute,Chinese Academy of Agricultural Sciences,Chongqing 400712,China 3.National Engineering Research Center for Citrus Technology,Chongqing 400712,China  
Olinda valencia orange leaves dry powder-like were taken as sample,and chemical analysis combined with technology of visible near-infrared spectroscopy(Vis/NIRS)was used,through the treatment process of second derivative spectrum of samples of the original spectrum and denoising(Noise).Meanwhile,method of partial least squares(PLS)and cross-validation were used to establish maths model of Zn concentration which applying band combination composited by 400-500 and 1 201-1 300nm of characteristic wavelength band.The coefficient of establishing models is 0.997 5,while the coefficient of correlation coefficient of prediction is 0.992 0.The root mean square error of prediction(RMSEP)of cross-validation is 0.586 8.Therefore,the means using visible near-infrared spectroscopy(Vis/NIRS)and the methods of cross-validation and PLS to establish the spectral correction model reflecting the Zn content in leaves and characteristic wavelength bands can detect the Zn content in citrus leaves quantitatively and quickly.
【Fund】: 科技部支撑计划项目(2007BAD47B04-1 2008BAD92B08-7-4);; 重庆市重大攻关项目(CSTC 2006);; 公益性行业(农业)科研专项项目(nyhyzx07-023);; 科技人员服务企业行动联合项目(2009GJF10004)资助
【CateGory Index】: S666.4
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【Co-citations】
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