Consulta: subjectFacets:"Enzymes."
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Data/hora: 01/06/2024 14:17:28

Physiological and biochemical changes during desiccation tolerance loss in millet (Pennisetum glaucum L.) seeds
Provedor de dados: 1
Autores: Fernandes, Joana Souza; Guimarães, Renato Mendes; Faria, Jose Marcio Rocha; Pereira, Diego de Sousa; Coelho, Stefania Vilas Boas; Oliveira, Ariadne Santos.
The aim of this study was to evaluate the physiological and biochemical changes related to desiccation tolerance loss in millet seeds. The studied points of the germination process were determined according to the seed imbibition curve of the millet hybrid ADRF6010: control (0h), 3h of imbibition, 1 and 3 mm radicle. The seeds were dried on silica gel for 72h at 20°C, followed by pre-humidification at 25°C for 24h. Seed physiological quality was evaluated by electrical conductivity and a germination test, and seed vigor was evaluated with a first germination count and a germination speed index. The experiment was performed in a completely randomized design, and means were compared by the Scott-Knott test at a 5% probability. The enzymatic systems of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desiccation sensitivity; Germination; Proteins; Enzymes.; Agronomy; Dessecação de sementes; Fisiologia de Sementes; Tolerância à dessecação em sementes.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/36522

Primary leaf growth and coleoptile length in maize seedlings
Provedor de dados: 1
Autores: Lopes, Camila Aparecida; Carvalho, Maria Laene Moreira de; Vasconcelos, Michelle Conceição; Ribeiro, Ana Maria Pereira; Santos, Heloísa Oliveira dos.
Evaluation of the physiological potential of maize seeds during the certification process is performed by a germination test. However, some tests show a delay in the growth of aerial seedling organs that does not reflect seed lot behavior in the field. This study aims to investigate the effects of genotype, water, light and temperature on differential primary leaf growth compared to coleoptile length in maize seedlings. Seeds from two simple hybrids and their reciprocal crosses that showed slow primary leaf growth were evaluated according to physiological quality, morphology, histochemistry, and enzymatic expression. There were differences among maize genotypes regarding initial primary leaf growth when compared to the coleoptile, especially when...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ea mays L.; Germination test; Lignin; Enzymes.; Qualidade de sementes.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35366