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An Optical Detector for Determining Chlorophyll and Nitrogen Concentration Based on Photoreaction in Apple Tree Leaves



It is a practical need for orchard production to detect chlorophyll and nitrogen concentration in apple tree leaves quickly. The interaction between apple tree leaves and sun light was analyzed through investigating the characteristics of spectral signatures of leaves, and a portable chlorophyll and nitrogen concentration detector was developed for apple tree leaves. Firstly 60 apple tree leaf samples were collected. The chlorophyll, nitrogen concentrations and reflectance were acquired in laboratories, then the spectral features of samples were analyzed, and light reaction characteristics were revealed accordingly. Therefore, the characteristic wavebands were obtained to predict the chlorophyll and nitrogen content in apple tree leaves effectively, and then the determination models for forecasting chlorophyll and nitrogen concentrations in apple leaves were established and validated. Finally a portable chlorophyll and nitrogen contents detector for apple leaves was developed based on the determination models. The performance test results showed that the detector could be used to detect the chlorophyll and nitrogen concentrations in apple leaves with high accuracy.



Total Pages: 13
Pages: 409-421


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Volume: 21
Issue: 3
Year: 2015

Cite this document


Farquhar, G D, J R Ehleringer, and K T Hubick. "Carbon Isotope Discrimination and Photosynthesis." Annual Review of Plant Physiology and Plant Molecular Biology 40.1 (1989): 503-537. Crossref. Web.

Farquhar, G. D., S. von Caemmerer, and J. A. Berry. "A Biochemical Model of Photosynthetic CO2 Assimilation in Leaves of C3 Species." Planta 149.1 (1980): 78-90. Crossref. Web.

Gates, David M. et al. "Spectral Properties of Plants." Applied Optics 4.1 (1965): 11. Crossref. Web.

Gausman, H.W. "Reflectance of Leaf Components." Remote Sensing of Environment 6.1 (1977): 1-9. Crossref. Web.

Gu Z. Spectroscopy and Spectral Analysis

Guo C. Acta Biophysica Sinica

Hong F. Progress in Biochemistry and Biophysics

Li B. Journal of Remote Sensing

Li F. Intelligent Automation and Soft Computing

LiM. (2006). Spectral analysis technology and application. Beijing: Science Press.

Mackinney G. Journal of Biological Chemistry

St-Jacques, C., and P. Bellefleur. "Determining Leaf Nitrogen Concentration of Broadleaf Tree Seedlings by Reflectance Measurements." Tree Physiology 8.4 (1991): 391-398. Crossref. Web.

Thomas, J. R., and G. F. Oerther. "Estimating Nitrogen Content of Sweet Pepper Leaves by Reflectance Measurements1." Agronomy Journal 64.1 (1972): 11. Crossref. Web.

Wang L. Transactions of the Chinese Society of Agricultural Machinery

Woolley, J. T. "Reflectance and Transmittance of Light by Leaves." PLANT PHYSIOLOGY 47.5 (1971): 656-662. Crossref. Web.

Yao X. Spectroscopy and Spectral Analysis

Zhang, Dongyan et al. "Research Vertical Distribution of Chlorophyll Content of Wheat Leaves Using Imaging Hyperspectra." Intelligent Automation & Soft Computing 18.8 (2012): 1111-1120. Crossref. Web.

Zhang Q. Plants

Zhang Q. Plants

Zhou W. Journal of Shangdong Normal University (Natural Science)


ISSN PRINT: 1079-8587
ISSN ONLINE: 2326-005X
DOI PREFIX: 10.31209
10.1080/10798587 with T&F
IMPACT FACTOR: 0.652 (2017/2018)
Journal: 1995-Present


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