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Proceedings Paper

Near-infrared diffuse reflection systems for chlorophyll content of tomato leaves measurement
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Paper Abstract

In this study, two measuring systems for chlorophyll content of tomato leaves were developed based on near-infrared spectral techniques. The systems mainly consists of a FT-IR spectrum analyzer, optic fiber diffuses reflection accessories and data card. Diffuse reflectance of intact tomato leaves was measured by an optics fiber optic fiber diffuses reflection accessory and a smart diffuses reflection accessory. Calibration models were developed from spectral and constituent measurements. 90 samples served as the calibration sets and 30 samples served as the validation sets. Partial least squares (PLS) and principal component regression (PCR) technique were used to develop the prediction models by different data preprocessing. The best model for chlorophyll content had a high correlation efficient of 0.9348 and a low standard error of prediction RMSEP of 4.79 when we select full range (12500-4000 cm-1), MSC path length correction method by the log(1/R). The results of this study suggest that FT-NIR method can be feasible to detect chlorophyll content of tomato leaves rapidly and nondestructively.

Paper Details

Date Published: 23 October 2006
PDF: 9 pages
Proc. SPIE 6381, Optics for Natural Resources, Agriculture, and Foods, 638112 (23 October 2006); doi: 10.1117/12.685604
Show Author Affiliations
Huanyu Jiang, Zhejiang Univ. (China)
Yibin Ying, Zhejiang Univ. (China)
Huishan Lu, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 6381:
Optics for Natural Resources, Agriculture, and Foods
Yud-Ren Chen; George E. Meyer; Shu-I Tu, Editor(s)

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