Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/46952
Title: Biochemical changes and physiological quality of corn seeds subjected to different chemical treatments and storage times
Other Titles: Alterações bioquímicas e qualidade fisiológica de sementes de milho submetidas a diferentes tratamentos químicos e tempos de armazenamento
Keywords: Zea mays L.
Seed - Treatment
Enzymes
Seed - Deterioration
Milho - Semente
Sementes - Tratamento
Enzimas
Sementes - Deterioração
Issue Date: Dec-2020
Publisher: ABRATES - Associação Brasileira de Tecnologia de Sementes
Citation: OLIVEIRA, T. L. de et al. Biochemical changes and physiological quality of corn seeds subjected to different chemical treatments and storage times. Journal of Seed Science, Londrina, v. 42, e202042038, 2020. DOI: http://dx.doi.org/10.1590/2317-1545v42234181.
Abstract: The chemical treatment of corn seeds is widely adopted for protecting crops at the early stages. However, some molecules interfere in the quality of seeds, especially when stored, by accelerating their deterioration. The objective of this work was to investigate the influence of insecticides on the enzymatic expression and quality of corn seeds subjected to storage. Seeds of the hybrids 2B647PW and SHS4070 were subjected to four different chemical treatments (standard treatment, standard + clothianidin, standard + thiamethoxam, and standard + fipronil) and stored for different periods (0, 3, 6, and 9 months). The quality evaluation included the germination test, first germination count, cold test, and health test. The expression of the enzymes α-amylase, esterase, superoxide dismutase, catalase, and alcohol dehydrogenase were determined by the gel electrophoresis technique. The insecticides clothianidin, thiamethoxam, and fipronil reduce the physiological quality of the seeds of hybrid 2B647PW after nine months of storage. The treatment of seeds with the insecticides clothianidin, thiamethoxam, and fipronil reduces the expression of α-amylase, superoxide dismutase, and catalase enzymes after nine months of storage. The enzymes α-amylase, superoxide dismutase, catalase, and alcohol dehydrogenase are good quality markers for hybrid corn seeds.
URI: http://repositorio.ufla.br/jspui/handle/1/46952
Appears in Collections:DAG - Artigos publicados em periódicos



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