Monitoring the Chlorophyll Fluorescence Parameter Fv/Fm in Compact Corn Based on Different Hyperspectral Vegetation Indices
TAN Chang-wei1, HUANG Wen-jiang2, JIN Xiu-liang1, WANG Jun-chan1, TONG Lu1, WANG Ji-hua2, GUO Wen-shan1*
1. Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Crop Physiology, Ecology and Cultivation in Middle and Lower Reaches of Yangtse River of Ministry of Agriculture, Yangzhou University, Yangzhou 225009, China 2. National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China
Abstract：In order to further assess the feasibility of monitoring the chlorophyll fluorescence parameter Fv/Fm in compact corn by hyperspectral remote sensing data, in the present study, hyperspectral vegetation indices from in-situ remote sensing measurements were utilized to monitor the chlorophyll fluorescence parameter Fv/Fm measured in the compact corn experiment. The relationships were analyzed between hyperspectral vegetation indices and Fv/Fm, and the monitoring models were established for Fv/Fm in the whole growth stages of compact corn. The results indicated that Fv/Fm was significantly correlated to the hyperspectral vegetation indices. Among them, structure-sensitive pigment index (SIPI) was the most sensitive remote sensing variable for monitoring Fv/Fm with correlation coefficient (r) of 0.88. The monitoring model of Fv/Fm was established on the base of SIPI, and the determination coefficients (r2) and the root mean square errors (RMSE) were 0.812 6 and 0.082 respectively. The overall results suggest that hyperspectral vegetation indices can be potential indicators to monitor Fv/Fm during growth stages of compact corn.
谭昌伟1，黄文江2，金秀良1，王君婵1，童 璐1，王纪华2，郭文善1*. 利用高光谱植被指数监测紧凑型玉米叶绿素荧光参数Fv/Fm[J]. 光谱学与光谱分析, 2012, 32(05): 1287-1291.
TAN Chang-wei1, HUANG Wen-jiang2, JIN Xiu-liang1, WANG Jun-chan1, TONG Lu1, WANG Ji-hua2, GUO Wen-shan1*. Monitoring the Chlorophyll Fluorescence Parameter Fv/Fm in Compact Corn Based on Different Hyperspectral Vegetation Indices. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(05): 1287-1291.
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