PHYSIOLOGICAL AND BIOCHEMICAL CHANGES IN Pterogyne nitens Tull. SEEDS DURING THE ARTIFICIAL AGING PROCESS

Authors

  • Glauciana da Mata Ataíde UFV
  • Andressa Vasconcelos Flores
  • Eduardo Euclydes de Lima e Borges UFV

Keywords:

Seeds deterioration, catalase enzyme, lipid peroxidation, germination.

Abstract

The accelerated aging test is usually used to evaluate seeds vigor and quality. This study aimed to investigate and establish relations among deterioration, physiological changes, and catalase enzyme activity, during the artificial aging process of Pterogyne nitens seeds. So, P. nitens seeds with and without dormancy overcoming, with the application of concentrated sulfuric acid (95-99%), for 10 minutes, were exposed to the accelerated aging test, for 0, 24, 48, and 72 hours, determining the germination percentage, lipids peroxidation, and catalase enzyme activity. The artificial aging process significantly affected the viability and vigor seeds, after a previous dormancy overcoming, with a decrease in germination and catalase enzyme activity and an increase in lipids peroxidation, during the aging process. For seeds that did not overcome dormancy, no relation among artificial aging, physiological changes, and enzyme activity was observed, so that dormancy acts as a protective mechanism for seeds oxidative stress.

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Published

2012-03-14

How to Cite

ATAÍDE, G. da M.; FLORES, A. V.; BORGES, E. E. de L. e. PHYSIOLOGICAL AND BIOCHEMICAL CHANGES IN Pterogyne nitens Tull. SEEDS DURING THE ARTIFICIAL AGING PROCESS. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 42, n. 1, p. 71–76, 2012. Disponível em: https://revistas.ufg.br/pat/article/view/16497. Acesso em: 21 nov. 2024.

Issue

v. 42, n. 1, Jan./Mar. 2012

Section

Crop Science

License

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