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Provedor de dados:  Rev. bras. sementes
País:  Brazil
Título:  Viability of recently harvested and stored Xylopia aromatica (Lam.) Mart. (Annonaceae) seeds
Autores:  Socolowski,Fábio
Cicero,Silvio Moure
Vieira,Daniela Cristine Mascia
Data:  2012-01-01
Ano:  2012
Palavras-chave:  "pimenta-de-macaco"
Forestry seed
Image analysis
Seed quality
Resumo:  Xylopia aromatica is a native species from Brazil's "Cerrado", recommended for restoration ecology and also as a medicine. Its seeds have embryos with morphophysiological dormancy, making nursery propagation difficult. The objective of this study was to verify the efficiency of X-ray and tetrazolium tests for evaluating the viability of three seed lots, stored for different periods. All seeds were X-rayed (13 kV, 350 seconds) and samples used for tetrazolium and germination tests. In the tetrazolium test, seeds were submitted to six treatments at two temperatures (25 and 30 °C) with imbibition in distilled water and immersion in three concentrations of tetrazolium solution (0.5, 0.75 and 1%) at the two imbibition temperatures. Seeds for the germination test were placed for imbibition in distilled water and a 500 ppm Promalin® (6-Benzyladenine + GA4 + GA7) solution and later sown in sterilized sand. The embryo could not be observed with the X-ray test. However, those seeds observed with an undamaged endosperm did not differ in the percentages of seeds with firm and stained endosperms observed in the tetrazolium test for all the lots. The tetrazolium test is efficient for evaluating seed viability, principally if imbibed at 30 °C and immersed in a 0.5% solution at 30 °C.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Associação Brasileira de Tecnologia de Sementes
Relação:  10.1590/S0101-31222012000300007
Formato:  text/html
Fonte:  Revista Brasileira de Sementes v.34 n.3 2012
Direitos:  info:eu-repo/semantics/openAccess

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