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7. Spectral indicators for salinity effects in crops: a comparison of a new green indigo ratio with existing indices.

Author

Rud, Ronit, Shoshany, Maxim, and Alchanatis, Victor

Subjects
*SPECTRUM analysis, *EGGPLANT, *CAULIFLOWER, *SALINITY, *SALT, *COMPARATIVE studies
Abstract

Spectroradiometric measurements were taken from eggplant (Solanum melongena) and cauliflower (Brassica oleracea) plants in a controlled experiment treated with sodium chloride (NaCl) concentrations between 30 and 150 mmol. Assessment of seven vegetation indices indicated potential difference between three levels of salinity in effects, with the green indigo ratio (GIR of reflectance of 554 and 436 nm) yielding the most consistent results. Salinity effects started from the second week, but the highest differences were obtained in the fourth week for cauliflower and in the third and sixth weeks for eggplant. [ABSTRACT FROM AUTHOR]

Published
2011
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