Influence of quality and physiological coloration of guandu bean seeds
DOI:
https://doi.org/10.33448/rsd-v9i7.4789Keywords:
Electrical conductivity; Germination; Reflectance.Abstract
The objective of this study was to study the physiological quality of guandu bean seeds submitted to different drying temperatures (40, 50, 60, 70 °C), besides the coloration of the seeds in different moisture contents during the drying process. The experiment was carried out at the Phytotechnic Laboratory, Seed Laboratory and the Post Harvest Laboratory of IFGoiano - Campi Iporá and Rio Verde, respectively. To evaluate the physiological quality, the germination test, germination speed index and electrical conductivity were performed. To analyze the color of the seeds, they were submitted to drying until reaching the water content of 12% wet basis (wb). Guandu bean seed color was evaluated by direct reflectance reading of the “L”, “a” and “b” coordinates, using the ColorFlex EZ colorimeter. Concluding that high temperatures reduce the drying time, however the best indicated temperature for drying guandu bean seeds without affecting the physiological quality is between 40 and 50 °C, and high temperatures cause greater damage to the seed, consequently reducing its quality. The reduction in water content provided a variation in the “L”, “a” and “b” coordinates of the pea bean seeds.
References
Afonso Jr, P. C. & Corrêa, P. C. (2003). Influência do tempo de armazenagem na cor dos grãos de café pré-processados por “via seca” e “via úmida”. Ciência e Agrotecnologia, 27(6):1268-76.
Bewley, J. D., Bradford, K., Hilhorst, H. & Nonogaki H. (2013). Seeds: physiology of development, germination and dormancy. 3. Ed. New York: Springer: 392-408.
Botelho, F. M., Granella, S. J., Botelho, S. C. C., Garcia, T. R. B. (2015). Influência da temperatura de secagem sobre as propriedades físicas dos grãos de soja. Engenharia na Agricultura, 23(3): 212-9.
Brasil. (2009). Regras para análise de sementes. Ministério da Agricultura e Reforma Agrária. Secretaria Nacional de defesa Agropecuária. Brasília: MAPA/ACS, p.395.
Corrêa, P. C., Ribeiro, D. M., Rodrigues, D. H., Goneli, A. L. D. (2005). Análise da variação das propriedades físicas dos grãos de soja durante o processo de secagem. Ciência e Tecnologia de Alimentos, 25(3): 611-617.
Marcos-filho, J. (2015). Fisiologia de sementes de plantas cultivadas. Piracicaba: FEALQ: 590.
Marcos-filho, J. (2011). Testes de vigor: dimensão e perspectivas. Seed News. 15(1).
Menezes, N. L., Pasqualli, L. L., Barbieri, A. P. P., Vidal, M. D., Conceição, G. M. (2012). Temperaturas de secagem na integridade física, qualidade fisiológica e composição química de sementes de arroz. Pesquisa Agropecuária Tropical, 42(4): 430-436.
Moscon, E. S., Martin, S., Spehar, C. R., Devilla, I. A., Junior, F. R. (2017). Cinética de secagem de grãos de quinoa (Chenopodium quinoa W.). Revista Engenharia na Agricultura, 25(4): 318-325.
Silva, L. C. (2005). Boletim Técnico: AG SEMENTES. Adubação Verde e Cobertura Vegetal - Sementes para Adubos Verdes SEMENTE (FEIJÃO) GUANDU-FORRAGEIRO. 4(05).
Ullmann, R., Resende, O., Sales, J. F., Chaves, T. H. (2010). Qualidade das sementes de pinhão manso submetidas à secagem artificial. Revista Ciência Agronômica, 41(3): 442-447.
Ullmann, R., Resende, O., Chaves, T. H., Oliveira, D. E. C., Costa, L. M. (2015). Qualidade fisiológica das sementes de sorgo sacarino submetidas à secagem em diferentes condições de ar. Revista Brasileira de Engenharia Agrícola e Ambiental, 19(1): 64-69.
Oliveira, D. E. C., Resende, O., Costa, L. M. (2017). Efeitos da secagem na coloração dos frutos de baru (Dipteryx alata Vogel). Agro@mbiente On-line, 10(4): 364-370.
doi: 10.18227/1982-8470ragro.v10i4.3584
Vieira, R. D., Carvalho, N. M. (1994). Testes de vigor em sementes. Jaboticabal: FUNEP,:16.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
1) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
