Foliar application of plant growth regulators changes the physiological quality of crambe seeds
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 p...
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Universidade Estadual de Maringá
2019-11-01
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doaj-df2fb079e5514bb2a1f641fa01f6b7ed2020-11-25T02:07:48ZengUniversidade Estadual de MaringáActa Scientiarum : Biological Sciences1679-92831807-863X2019-11-0141e46093e4609310.4025/actascibiolsci.v41i1.4609346093Foliar application of plant growth regulators changes the physiological quality of crambe seedsNayara Parisoto Boiago0Silvia Renata Machado Coelho1Giovana Scalcon Fernandes2Carlos Henrique de Oliveira Paz3Felipe Samways Santos4Centro Universitário Fundação Assis GurgaczUniversidade Estadual do Oeste do ParanáUniversidade Estadual do Oeste do ParanáUniversidade Estadual do Oeste do ParanáUniversidade Estadual do Oeste do ParanáThe 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<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.http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46093crambe abyssinica hochst. ex fries; growth promoters; germination; electrical conductivity; ion leaching. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nayara Parisoto Boiago Silvia Renata Machado Coelho Giovana Scalcon Fernandes Carlos Henrique de Oliveira Paz Felipe Samways Santos |
spellingShingle |
Nayara Parisoto Boiago Silvia Renata Machado Coelho Giovana Scalcon Fernandes Carlos Henrique de Oliveira Paz Felipe Samways Santos Foliar application of plant growth regulators changes the physiological quality of crambe seeds Acta Scientiarum : Biological Sciences crambe abyssinica hochst. ex fries; growth promoters; germination; electrical conductivity; ion leaching. |
author_facet |
Nayara Parisoto Boiago Silvia Renata Machado Coelho Giovana Scalcon Fernandes Carlos Henrique de Oliveira Paz Felipe Samways Santos |
author_sort |
Nayara Parisoto Boiago |
title |
Foliar application of plant growth regulators changes the physiological quality of crambe seeds |
title_short |
Foliar application of plant growth regulators changes the physiological quality of crambe seeds |
title_full |
Foliar application of plant growth regulators changes the physiological quality of crambe seeds |
title_fullStr |
Foliar application of plant growth regulators changes the physiological quality of crambe seeds |
title_full_unstemmed |
Foliar application of plant growth regulators changes the physiological quality of crambe seeds |
title_sort |
foliar application of plant growth regulators changes the physiological quality of crambe seeds |
publisher |
Universidade Estadual de Maringá |
series |
Acta Scientiarum : Biological Sciences |
issn |
1679-9283 1807-863X |
publishDate |
2019-11-01 |
description |
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<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. |
topic |
crambe abyssinica hochst. ex fries; growth promoters; germination; electrical conductivity; ion leaching. |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46093 |
work_keys_str_mv |
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