Talisia esculenta seed quality in function of drying temperatures and times

Authors

  • Edson Almeida Cardoso Universidade Federal da Paraíba
  • Edna Ursulino Alves Universidade Federal da Paraíba
  • Adriana Ursulino Alves Universidade Federal do Piauí

DOI:

https://doi.org/10.5433/1679-0359.2015v36n1p7

Keywords:

Recalcitrant seeds, Pitomba, Longevity, Desiccation.

Abstract

Talisia esculenta Radlk is a species of the Sapindaceae family native to the Amazon region. Its fruits are principally obtained by collecting in natura; its propagation is by seeds, which are of the recalcitrant type, with low longevity and sensitivity to dehydration. We evaluated the effects of different drying times and temperatures on T. esculenta seeds. The seeds were dried in a forced-air oven at 40, 45, and 50°C for periods of 0, 6, 12, 24, 30, and36 hours, using four replications of 25 seeds each. Tests were conducted to determine seed quality: moisture contents, emergence percentage, first counts, emergence speed index and the length and dry weight of the seedlings. The data was submitted to analysis of variance and polynomial regression, at a 5% level of probability. T. esculenta seeds should be dried at 40 or 45°C for no more than six hours for best initial seedling growth.

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Author Biographies

Edson Almeida Cardoso, Universidade Federal da Paraíba

Engo Agro, M.e, Discente do Curso de Doutorado do PPGA em Agronomia, Universidade Federal da Paraíba, UFPB, Centro de Ciências Agrárias, CCA, Areia, PB. Bolsistas da CAPES.

Edna Ursulino Alves, Universidade Federal da Paraíba

Engª Agrª, Profª Drª, Deptº de Fitotecnia, Universidade Federal da Paraíba, UFPB, Centro de Ciências Agrárias, CCA, Areia, PB.

Adriana Ursulino Alves, Universidade Federal do Piauí

Engª Agrª, Profª Dra, Deptº de Engenharias, Universidade Federal do Piauí, UFPI, Campus Prof.ª Cinobelina Elvas, CPCE, Bom Jesus, PI.

Published

2015-02-26

How to Cite

Cardoso, E. A., Alves, E. U., & Alves, A. U. (2015). Talisia esculenta seed quality in function of drying temperatures and times. Semina: Ciências Agrárias, 36(1), 7–16. https://doi.org/10.5433/1679-0359.2015v36n1p7

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