Vermiculita como substrato para o teste de germinação de sementes de barbatimão
The objective of this research was to evaluate the use of vermiculite as a substrate for the germination test of 'barbatimão' seeds and to establish what would be the best granulometry and the best moisture intensity to germinate 'barbatimão' seeds. Four replications of 50 seeds...
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Universidade Federal de Santa Maria
2011-01-01
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Series: | Ciência Florestal |
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doaj-ebbbbee116fd4381ac384c560a613d382020-11-24T21:50:34ZporUniversidade Federal de Santa MariaCiência Florestal0103-99541980-50982011-01-01213421427Vermiculita como substrato para o teste de germinação de sementes de barbatimãoCibele Chalita MartinsCarla Gomes MachadoIsliana Griebler Ribeiro CaldasIsrael Gomes VieiraThe objective of this research was to evaluate the use of vermiculite as a substrate for the germination test of 'barbatimão' seeds and to establish what would be the best granulometry and the best moisture intensity to germinate 'barbatimão' seeds. Four replications of 50 seeds were previously scarified with H2SO4 for 60 minutes. Afterwards, the following germination substrates were evaluated: paper rolls moistened with water equivalent to 2.5 times the weight of the dry paper (control); micron, super thin, thin and average sized vermiculite moistened with 0.5, 1.0, 1.5 and 2.0 times the weight of the dry paper. The germination temperature was 30°C. The percentage of normal seedlings was obtained seven days after sowing (first count) and, then, weekly (up to 28 days). Average time and relative distribution of germination were calculated. It was concluded that the germination of 'barbatimão' seeds can be carried out with either fine vermiculite moistened with water equivalent to 2.0 times the weight of the dry paper or average sized substrate moistened with water equivalent to 0.5 to 2.0 times the weight of dry paper. These treatments resulted in higher and faster germination (21 days), similarly to the paper roll method.http://www.redalyc.org/articulo.oa?id=53420071003 |
collection |
DOAJ |
language |
Portuguese |
format |
Article |
sources |
DOAJ |
author |
Cibele Chalita Martins Carla Gomes Machado Isliana Griebler Ribeiro Caldas Israel Gomes Vieira |
spellingShingle |
Cibele Chalita Martins Carla Gomes Machado Isliana Griebler Ribeiro Caldas Israel Gomes Vieira Vermiculita como substrato para o teste de germinação de sementes de barbatimão Ciência Florestal |
author_facet |
Cibele Chalita Martins Carla Gomes Machado Isliana Griebler Ribeiro Caldas Israel Gomes Vieira |
author_sort |
Cibele Chalita Martins |
title |
Vermiculita como substrato para o teste de germinação de sementes de barbatimão |
title_short |
Vermiculita como substrato para o teste de germinação de sementes de barbatimão |
title_full |
Vermiculita como substrato para o teste de germinação de sementes de barbatimão |
title_fullStr |
Vermiculita como substrato para o teste de germinação de sementes de barbatimão |
title_full_unstemmed |
Vermiculita como substrato para o teste de germinação de sementes de barbatimão |
title_sort |
vermiculita como substrato para o teste de germinação de sementes de barbatimão |
publisher |
Universidade Federal de Santa Maria |
series |
Ciência Florestal |
issn |
0103-9954 1980-5098 |
publishDate |
2011-01-01 |
description |
The objective of this research was to evaluate the use of vermiculite as a substrate for the germination test of 'barbatimão' seeds and to establish what would be the best granulometry and the best moisture intensity to germinate 'barbatimão' seeds. Four replications of 50 seeds were previously scarified with H2SO4 for 60 minutes. Afterwards, the following germination substrates were evaluated: paper rolls moistened with water equivalent to 2.5 times the weight of the dry paper (control); micron, super thin, thin and average sized vermiculite moistened with 0.5, 1.0, 1.5 and 2.0 times the weight of the dry paper. The germination temperature was 30°C. The percentage of normal seedlings was obtained seven days after sowing (first count) and, then, weekly (up to 28 days). Average time and relative distribution of germination were calculated. It was concluded that the germination of 'barbatimão' seeds can be carried out with either fine vermiculite moistened with water equivalent to 2.0 times the weight of the dry paper or average sized substrate moistened with water equivalent to 0.5 to 2.0 times the weight of dry paper. These treatments resulted in higher and faster germination (21 days), similarly to the paper roll method. |
url |
http://www.redalyc.org/articulo.oa?id=53420071003 |
work_keys_str_mv |
AT cibelechalitamartins vermiculitacomosubstratoparaotestedegerminacaodesementesdebarbatimao AT carlagomesmachado vermiculitacomosubstratoparaotestedegerminacaodesementesdebarbatimao AT islianagrieblerribeirocaldas vermiculitacomosubstratoparaotestedegerminacaodesementesdebarbatimao AT israelgomesvieira vermiculitacomosubstratoparaotestedegerminacaodesementesdebarbatimao |
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