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Title: Morphological, chemical and physiological characterization of Amaranthus spp. Seeds
Other Titles: Caracterização morfológica, química e fisiológica de sementes de Amaranthus spp.
Keywords: Unconventional vegetables
Near-infrared spectroscopy
Radiographic analysis
Hortaliças não convencionais
Espectroscopia de infravermelho próximo
Análise radiográfica
Issue Date: 2019
Publisher: ABRATES - Associação Brasileira de Tecnologia de Sementes
Citation: XAVIER J. B. et al. Morphological, chemical and physiological characterization of Amaranthus spp. Seeds. Journal of Seed Science, Londrina, v. 41, n. 4, p. 478-487, out./dez. 2019.
Abstract: Amaranthus species have great potential for human food due to their nutritional and functional properties, but there are few phytotechnical studies with this crop, making its cultivation unfeasible. Aiming to encourage the production of these species, this study aimed to evaluate and distinguish the morphological, chemical and physiological characteristics of seeds of Amaranthus sp. (commercial species), A. viridis and A. hybridus. The experiments were performed in a completely randomized design, evaluating seeds in size classes (850, 600 and 425 µm) and characterizing them by image analysis using the GroundEye® system, near-infrared spectroscopy (NIR) and radiographic analysis. The first germination count, germination and germination speed index with and without KNO3 were performed to evaluate the physiological quality of seeds. The results were submitted to analysis of variance and the means compared by the Tukey test. Radiographic analysis showed that the seeds of the three studied species were filled in the size class of 600 and 850 µm, without dormancy, but the commercial species had higher germination speed. GroundEye® and NIR allowed distinguishing the three species according to their geometric characteristics, predominance of color and chemical components.
Appears in Collections:DAG - Artigos publicados em periódicos

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