近红外光谱漫反射和漫透射测量方法在玉米品种真实性鉴定中的应用研究  

The Utility Research on NIR Diffuse Reflectance and Transmittance Measurements Mode in Authenticity Identification of Maize Population Samples

作　　者：唐兴田[1] 邬文锦[1] 郭婷婷[2] 贾仕强[1] 严衍禄[1] 安冬[1] 

机构地区：[1]中国农业大学信息与电气工程学院,北京100083 [2]中国农业大学国家玉米改良中心,北京100193

出　　处：《光谱学与光谱分析》2012年第6期1531-1534,共4页Spectroscopy and Spectral Analysis

基　　金：中央高校基金科研业务费专项资金项目(2010JS097);国家自然科学基金项目(60805011);高等学校博士学科点专项科研基金项目(200800191028)资助

摘　　要：研究了适合进行玉米群体样品品种真实性鉴定的光谱测量方法。分别用近红外光谱仪的全波漫反射和短波漫透射测量方法采集8个玉米品种的光谱数据,对预处理后的数据做偏最小二乘分析(PLS-DA),建立8个玉米品种的仿生模式识别模型。分别统计用两种方法所测数据建立的品种识别模型对本类样品的平均正确识别率和对异类样品的平均正确拒识率,漫反射方法达到94.5%和96.71%,漫透射方法达到98.50%和98.00%,均满足玉米品种初筛所要求的精度,其中短波漫透射方法建立的模型对测试样本的平均正确识别率和拒识率分别比全波漫反射方法高出4%和1.3%。In the present paper,the spectral measurements of maize population samples were researched so as to identify their authenticity.Diffuse reflectance and transmittance measure modes were used to collect spectral data of 8 maize varieties.DPLS-DA was used to compress pretreated data.The recognition models of eight maize varieties were built based on biomimetic pattern recognition（BPR）.The average correct recognition rate and average correct rejection rate of identification models built by two modes were calculated.The average recognition rate and rejection rate of diffuse reflectance method reached 94.50% and 96.71%,and those of transmittance method reached 98.5% and 98.00%,respectively.Both of them met the requirements of maize preliminary screening.,and the recognition rate and rejection rate of transmittance method are higher than diffuse reflectance method by 4% and 1.3% respectively.

关 键 词：近红外光谱 漫反射 漫透射 仿生模式识别 

分 类 号：O657.3[理学—分析化学] S123[理学—化学]