A new relative referencing method for crop monitoring using chlorophyll fluorescence.
Adv Space Res
; 31(1): 245-8, 2003.
Article
em En
| MEDLINE
| ID: mdl-12580189
ABSTRACT
The measurement of plant chlorophyll fluorescence has been used for many years as a method to monitor a plant's health status. These types of methods have been mostly relegated to the laboratory. The newly developed Relative Referencing Method allows for the measurement of chlorophyll fluorescence under artificial lighting conditions. The fluorescence signal can be determined by first taking a reference signal measurement, then a second measurement with an additional fluorescence excitation source. The first signal can then be subtracted from the second and the plant's chlorophyll fluorescence due to the second lighting source can be determined. With this simple approach, a photosynthesizing plant can be monitored to detect signs of water stress. Using this approach experiments on tomato plants have shown that it was possible to detect water stress, while the plants were continuously illuminated by fluorescent lamps. This method is a promising tool for the remote monitoring of crops grown in a CELSS-type application.
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Base de dados:
MEDLINE
Assunto principal:
Água
/
Clorofila
/
Solanum lycopersicum
/
Fenômenos Fisiológicos Vegetais
/
Fluorescência
Tipo de estudo:
Diagnostic_studies
/
Evaluation_studies
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article