Viability of recently harvested and stored Xylopia aromatica (Lam.) Mart. (Annonaceae) seeds


Autoria(s): Socolowski, Fábio; Cicero, Silvio Moure; Vieira, Daniela Cristine Mascia
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

04/11/2013

04/11/2013

2012

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.

Identificador

Rev. bras. sementes, v.34, n.3, p.408-415, 2012

0101-3122

http://www.producao.usp.br/handle/BDPI/38826

10.1590/S0101-31222012000300007

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300007&lng=en&nrm=iso&tlng=en

http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0101-31222012000300007&lng=en&nrm=iso&tlng=en

http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0101-31222012000300007&lng=en&nrm=iso&tlng=en

Idioma(s)

eng

Publicador

Associação Brasileira de Tecnologia de Sementes

Relação

Revista Brasileira de Sementes

Direitos

openAccess

Palavras-Chave #"pimenta-de-macaco" #forestry seed #image analysis #seed quality #pimenta-de-macaco #análise de imagens #qualidade de semente #semente florestal
Tipo

article

original article