Data/hora: 01/06/2024 13:21:01

Provedor de dados: | 1
País: | Brazil
Título: | Primary leaf growth and coleoptile length in maize seedlings
Autores: | Lopes, Camila Aparecida; Carvalho, Maria Laene Moreira de; Vasconcelos, Michelle Conceição; Ribeiro, Ana Maria Pereira; Santos, Heloísa Oliveira dos.
Data: | 2018-05-15
Ano: | 2018
Palavras-chave: | Ea mays L.; Germination test; Lignin; Enzymes.; Qualidade de sementes.
Resumo: | 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 germination was tested without light. Water availability and optimal temperature range did not affect the differential growth of the primary leaf in the hybrids. Pericarp thickness, lignin content and differences in enzyme expression in different genotypes were also not related to changes in the relationship of primary leaf growth with coleoptile length during the maize seed germination test.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35366

10.4025/actasciagron.v40i1.35366

Editor: | Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35366/pdf
Formato: | application/pdf

Fonte:

Acta Scientiarum. Agronomy; Vol 40 (2018): Publicação Contínua; e35366

Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e35366

1807-8621

1679-9275

Fonte: | Copyright (c) 2018 Acta Scientiarum. Agronomy