Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/50516
Título: Accelerated ageing test and enzymatic expression in the evaluation of kale seed quality
Título(s) alternativo(s): Teste de envelhecimento acelerado e expressão enzimática na avaliação da qualidade de sementes de couve
Palavras-chave: Brassica oleracea var. acephala
Isoenzymes
Saline solution
Vigour test
Couve
Isoenzimas
Solução salina
Teste de vigor
Data do documento: Jun-2022
Editor: Universidade Estadual de Londrina (UEL)
Citação: SALES, T. S. et al. Accelerated ageing test and enzymatic expression in the evaluation of kale seed quality. Semina: Ciências Agrárias, Londrina, v. 43, n. 3, p. 1079-1094, mai./jun. 2022. DOI: 10.5433/1679-0359.2022v43n3p1079.
Resumo: The demand for high-quality vegetable seeds and the production of vigorous seedlings has increased in recent years, as these characteristics are determining factors of production success. Vegetables are growing in national importance, and kale stands out as an important source of income for small farmers. The objective of this study was to adapt the traditional accelerated aging test methodology with a saturated NaCl solution of kale seeds and evaluate the enzymatic activity after the vigour test. Six batches of kale seeds were used, and the moisture content, weight of one thousand seeds, first germination count, germination, germination speed index, emergence, initial stand, and emergence velocity index were determined. In the accelerated ageing test, the seeds were submitted to the traditional accelerated ageing test method and the accelerated ageing test method with a saturated NaCl solution for ageing periods of 0, 24, 48, 72, and 96 hours. Electrophoretic analysis of superoxide dismutase (SOD), catalase (CAT), and alcohol dehydrogenase (ADH) isoenzymes was also performed. The accelerated ageing test, using the traditional method for 72 hours at 41 °C, is adequate for evaluating the physiological potential of kale seeds. The isoenzymatic analyses of SOD, CAT, and ADH demonstrate that the biochemical markers are efficient at differentiating kale seeds after accelerated ageing.
URI: http://repositorio.ufla.br/jspui/handle/1/50516
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