Water and salt stress in soybean seeds classified in different sizes

Authors

  • Marcos Morais Soares Fundação Universidade do Tocantins
  • Hamilton Carvalho dos Santos Junior
  • Mateus Geraldo Simões Federal University of Viçosa image/svg+xml
  • Dalcionei Pazzin Federal University of Viçosa image/svg+xml
  • Laércio Junio da Silva Federal University of Viçosa image/svg+xml

DOI:

https://doi.org/10.5216/pat.v45i4.35357

Keywords:

Glycine max, water potential, seed quality.

Abstract

The importance of seed size has been reported for many species, since it may affect seed germination and seedling vigor, especially under stress conditions. This study aimed at evaluating the effect of seed size on the germination and initial growth of soybean seedlings (M9144RR and M8527RR cultivars), under water and salt stress conditions. Water stress was induced by mannitol and salt stress by sodium chloride. The seeds were submitted to the germination test, first germination count and seedling growth to assess the effects of the treatments. A completely randomized design with four replications was used. The germination and vigor of soybean seeds decreased with the reduction of osmotic potential. There was no effect of seed size on germination and seedlings length. However, the seeds with higher size resulted in seedlings with greater dry mass, even when subjected to water and salt stress conditions.

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Author Biographies

  • Marcos Morais Soares, Fundação Universidade do Tocantins
    Professor Fundação Universidade do Tocantins (UNITINS)
  • Hamilton Carvalho dos Santos Junior
    Estudante do curso de Agronomia da Universidade Federal de Viçosa
  • Mateus Geraldo Simões, Federal University of Viçosa
    Estudante do curso de Agronomia da Universidade Federal de Viçosa
  • Dalcionei Pazzin, Federal University of Viçosa
    Estudante de doutorado do Programa de Pós-Graduação em Fitotecnia da Universidade Federal de Viçosa
  • Laércio Junio da Silva, Federal University of Viçosa
    Professor do Departamento de Fitotecnia da Universidade Federal de Viçosa

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Published

2015-11-19

Issue

v. 45, n. 4, Oct./Dec. 2015

Section

Research Article

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.

How to Cite

SOARES, M. M. et al. Water and salt stress in soybean seeds classified in different sizes. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], v. 45, n. 4, p. 370–378, 19 Nov.2015.