Open Access

ARTICLE

Analyzing digital color descriptors in wheat

by Salomón N¹, V Misller¹, C Delrieux², R Miranda³

1 Departamento de Agronomía, Universidad Nacional del Sur. San Andrés 800. Altos de Palihue. Bahía Blanca. Buenos Aires. Argentina.
2 Departamento de Ingeniería Eléctrica, Universidad Nacional del Sur Av. Alem 1253. Bahía Blanca. Buenos Aires. Argentina.
3 Asociación de Cooperativas Argentinas. Saavedra 636. Bahía Blanca. Buenos Aires. Argentina.

* Corresponding Author:Address Correspondence to: Ing. Agr. Mg. Nelly Salomón, Fax 054-0291-4595127; Phone 054-0291-4595126; e-mail:

Phyton-International Journal of Experimental Botany 2015, 84(2), 306-311. https://doi.org/10.32604/phyton.2015.84.306

Abstract

Color is one of the factors used in quality estimation in many agricultural and food products. Currently, the evaluation of color depends on judgments made by human experts. These are subjective and inevitably affected by physical, physiological and environmental conditions. Suitable instrumental is required to provide objectivity and coherence to color measurements and quantitative expressions. It would be very useful to have tools that allow both practical and precise approaches to chromatic evaluation of products for human consumption. This work suggests a methodology which might contribute to solve that constraint and the analysis of environmental influences on this character in two consecutive wheat growing seasons. This research used 18 cultivars, which were sampled in two crop growth stages. On the first part of this study, a spectrophotometer and a digital camera were used for the analysis of color at the phenological state of tillering. Data analysis showed a correlation between both study methodologies, which would make more practical the work of breeders during data collection. The second part of the study of the genotype-environment interaction (GEI) continued using only a digital camera. The phenological state of tillering did not evidence a marked GEI. On the other hand, an appreciable GEI was found at physiological ripeness.

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Keywords

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