Data/hora: 09/06/2024 18:00:07

Provedor de dados: | Acta Scientiarum: Biological Sciences
País: | Brazil
Título: | Foliar application of plant growth regulators changes the physiological quality of crambe seeds
Autores: | Boiago, Nayara Parisoto; Coelho, Silvia Renata Machado; Fernandes, Giovana Scalcon; Paz, Carlos Henrique de Oliveira; Santos, Felipe Samways.
Data: | 2019-11-01
Ano: | 2019
Palavras-chave: | Crambe abyssinica Hochst. ex Fries; Growth promoters; Germination; Electrical conductivity; Ion leaching.
Resumo: | The application of plant growth regulators can manipulate the development of cultivated plants, and their physiological effects may be reflected in the physiological quality of the seeds. This study evaluated the effects of plant growth regulators (PGR) on the physiological quality of crambe seeds produced in the 2014 and 2015 harvests. During crop development, we applied two foliar sprayings of the following treatments: 1) control treatment with distilled water; 2) indole-3-acetic acid 100 mg L-1 (IAA); 3) 3-gibberellic acid P.A. 100 mg L-1 (GA3); 4) commercial PGR Stimulate® 6 mL L-1. The seeds were harvested and evaluated for water content, germination percentage and germination speed index (GSI), electrical conductivity and concentrations of leached Ca, Mg and K ions. Means were compared by Tukey´s and Dunnett tests (p&amp;lt;0.05). Applying Stimulate® increased the germination percentage and the germination speed index, while IAA application showed an opposite effect, increasing the electrical conductivity of crambe seeds. Calcium leaching decreased with IAA application, and all regulators reduced K leaching. We therefore infer that the application of plant growth regulators influences the physiological quality of crambe seeds.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46093

10.4025/actascibiolsci.v41i1.46093

Editor: | Universidade Estadual De Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46093/751375148691
Formato: | application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; Vol 41 (2019): Publicação contínua; e46093

Acta Scientiarum. Biological Sciences; v. 41 (2019): Publicação contínua; e46093

1807-863X

1679-9283

Fonte:

Copyright (c) 2019 Acta Scientiarum. Biological Sciences

https://creativecommons.org/licenses/by/4.0