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Optical characterization of Chinese hybrid rice using laser-induced fluorescence techniques—laboratory and remote-sensing measurements
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- Duan, Zheng (author)
- South China Normal University
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- Peng, Ting (author)
- Henan Agricultural University, Zhengzhou
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- Zhu, Shiming (author)
- South China Normal University
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- (creator_code:org_t)
- 2018
- 2018
- English 7 s.
- In: Applied Optics. - 1559-128X. ; 57:13, s. 3481-3487
- Journal article (peer-reviewed)
Abstract
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- Chinese hybrid rice of different varieties, growing in paddies in the Pingqiao district, north of Xinyang city, Henan province, China, was studied in detailed spectroscopic characteristics using laser-induced fluorescence. The base for the studies was the new South China Normal University mobile lidar laboratory, which was dispatched on site, providing facilities both for laboratory studies using a 405 nm excitation source as well as remote sensing measurements at ranges from around 40 m–120 m, mostly employing the 532 nm output from a Nd:YAG laser. We, in particular, studied the spectral influence of the species varieties as well as the level of nitrogen fertilization supplied. Specially developed contrast functions as well as multivariate techniques with principal components and Fisher’s discriminate analyses were applied, and useful characterization of the rice could be achieved. The chlorophyll content mapping of the 30 zones was obtained with the remote sensing measurements.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Livsmedelsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Food Engineering (hsv//eng)
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- art (subject category)
- ref (subject category)
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- By the author/editor
- Duan, Zheng
- Peng, Ting
- Zhu, Shiming
- Lian, Ming
- Li, Yiyun
- Wei, Fu
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- Xiong, Jiabao
- Svanberg, Sune
- Zhao, Quanzhi
- Hu, Jiandong
- Zhao, Guangyu
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- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- Applied Optics
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- Lund University
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