Monitoring Leaf Chlorophyll Fluorescence with Spectral Reflectance in Rice (Oryza sativa L.)

文献类型： 外文期刊

第一作者： Zhang, Hao

作者： Zhang, Hao;Zhu, Lian-feng;Jin, Qian-yu;Zhang, Hao;Hu, Hao;Zheng, Ke-feng

作者机构：

关键词： Chlorophyll fluorescence;Leaf;Photosynthesis;Rice;Spectral reflectance

期刊名称：CEIS 2011

ISSN： 1877-7058

年卷期： 2011 年 15 卷

页码：

收录情况： SCI

摘要： Non-destructive and rapid monitoring methods for leaf chlorophyll fluorescence (CF) of rice is significance in estimating rice growing, enhancing more efficient application of agrochemicals and reducing yield loss. The present study investigated the use of physiological indices calculated from spectral reflectance as potential indicators of rice (Oryza sativa L.) photosynthetic apparatus affected by root oxygen and rice types. The experiments showed that spectral reflectance and leaf chlorophyll fluorescence changed with different treatments. Principal component analysis (PCA) method was used to select the key spectral ranges of leaf chlorophyll fluorescence. Based on the PCA, 7 key spectral indices (SI) were selected to monitor leaf CF. In these SI, (R-680 - R-935)/(R-680 + R-935) and R-680/R-935 have higher R and lower RMSE, could be used for monitoring chlorophyll fluorescence, such as Fo, Fm, Fv/Fm, and Fv/Fo, while phi PSII and NPQ could be detected by (R-800 - R-445)/(R-800 - R-680) and (R-780 - R-710)/(R-780 - R-680) respectively. Therefore, it was implied that chlorophyll fluorescence of rice response to root oxygen stress could be detected by remote sensing. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of [CEIS 2011]

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