MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.)
Due to absence of information about the methodology for the evaluation of the physiological quality of seeds of medicinal arboreal species seeds, the aim of the present work was to determine the most efficient method to overcome the seed coat dormancy in seeds of Sideroxylon obtusifolium (Roem.&...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Portuguese |
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Universidade Federal de Santa Maria
2012-01-01
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| Series: | Ciência Florestal |
| Online Access: | http://www.redalyc.org/articulo.oa?id=53423372017 |
| _version_ | 1811262948520230912 |
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| author | Ana Clara Moura Neves Rebouças Valderez Pontes Matos Rinaldo Luiz Caraciolo Ferreira Lúcia Helena de Moura Sena Anna Gorett de Figueiredo Almeida Sales Elane Grazielle Borba de Souza Ferreira |
| author_facet | Ana Clara Moura Neves Rebouças Valderez Pontes Matos Rinaldo Luiz Caraciolo Ferreira Lúcia Helena de Moura Sena Anna Gorett de Figueiredo Almeida Sales Elane Grazielle Borba de Souza Ferreira |
| author_sort | Ana Clara Moura Neves Rebouças |
| collection | DOAJ |
| description | Due to absence of information about the methodology for the evaluation of the physiological quality of seeds of medicinal arboreal species seeds, the aim of the present work was to determine the most efficient method to overcome the seed coat dormancy in seeds of Sideroxylon obtusifolium (Roem.& Schult.) T.D.Penn.. Besides the intact seeds, the ones which had not been submitted to any treatment, the following pre-germinating methods were used: chemical scarification: the seeds were immersed in pure sulfuric acid for 10, 20, 30, 40, 50 and 60 minutes at the environment temperature (27ºC ± 1ºC); mechanical
scarification: the seeds were rubbed manually in sandpaper number 50, in the opposite side of micropyle, without and with soaking for 24 or 48 hours; thermal scarification: immersion in water at 100ºC for 15 or 30 seconds; immersion in water to 80ºC until cooling. The effects of treatments were evaluated through tests of germination and vigor. There were significant differences among the treatments for all the evaluated parameters (percentage and speed of germination, length and dry weight of shoot and root), and the most evident cause of dormancy was the coat impermeability, which efficiency was overcame by the immersion
of seeds in pure sulfuric acid for 30 minutes. |
| first_indexed | 2024-04-12T19:34:53Z |
| format | Article |
| id | doaj.art-0f2dd1aef486491aa413935ff4d34bc7 |
| institution | Directory Open Access Journal |
| issn | 0103-9954 1980-5098 |
| language | Portuguese |
| last_indexed | 2024-04-12T19:34:53Z |
| publishDate | 2012-01-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Florestal |
| spelling | doaj.art-0f2dd1aef486491aa413935ff4d34bc72022-12-22T03:19:13ZporUniversidade Federal de Santa MariaCiência Florestal0103-99541980-50982012-01-01221183192MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.)Ana Clara Moura Neves RebouçasValderez Pontes MatosRinaldo Luiz Caraciolo FerreiraLúcia Helena de Moura SenaAnna Gorett de Figueiredo Almeida SalesElane Grazielle Borba de Souza FerreiraDue to absence of information about the methodology for the evaluation of the physiological quality of seeds of medicinal arboreal species seeds, the aim of the present work was to determine the most efficient method to overcome the seed coat dormancy in seeds of Sideroxylon obtusifolium (Roem.& Schult.) T.D.Penn.. Besides the intact seeds, the ones which had not been submitted to any treatment, the following pre-germinating methods were used: chemical scarification: the seeds were immersed in pure sulfuric acid for 10, 20, 30, 40, 50 and 60 minutes at the environment temperature (27ºC ± 1ºC); mechanical scarification: the seeds were rubbed manually in sandpaper number 50, in the opposite side of micropyle, without and with soaking for 24 or 48 hours; thermal scarification: immersion in water at 100ºC for 15 or 30 seconds; immersion in water to 80ºC until cooling. The effects of treatments were evaluated through tests of germination and vigor. There were significant differences among the treatments for all the evaluated parameters (percentage and speed of germination, length and dry weight of shoot and root), and the most evident cause of dormancy was the coat impermeability, which efficiency was overcame by the immersion of seeds in pure sulfuric acid for 30 minutes.http://www.redalyc.org/articulo.oa?id=53423372017 |
| spellingShingle | Ana Clara Moura Neves Rebouças Valderez Pontes Matos Rinaldo Luiz Caraciolo Ferreira Lúcia Helena de Moura Sena Anna Gorett de Figueiredo Almeida Sales Elane Grazielle Borba de Souza Ferreira MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.) Ciência Florestal |
| title | MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.) |
| title_full | MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.) |
| title_fullStr | MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.) |
| title_full_unstemmed | MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.) |
| title_short | MÉTODOS PARA SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE QUIXABEIRA (Sideroxylon obtusifolium (Roem. & Schult.) T.D.Penn.) |
| title_sort | metodos para superacao da dormencia de sementes de quixabeira sideroxylon obtusifolium roem schult t d penn |
| url | http://www.redalyc.org/articulo.oa?id=53423372017 |
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