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| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Comparative allelopathic effects of Cryptocarya moschata and Ocotea odorifera aqueous extracts on Lactuca sativa - doi: 10.4025/actasciagron.v35i2.15758
Comparative allelopathic effects of Cryptocarya moschata and Ocotea odorifera aqueous extracts on Lactuca sativa - doi: 10.4025/actasciagron.v35i2.15758
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| Autores: |
Prichoa, Franciele Carla; Universidade Regional Integrada do Alto Uruguai e das Missões
Leyser, Gabriela; Universidade Regional Integrada do Alto Uruguai e das Missões
Oliveira, José Vladimir de; Universidade Federal de Santa Catarina
Cansian, Rogério Luis; Universidade Regional Integrada do Alto Uruguai e das Missões
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| Data: |
2013-03-26
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| Ano: |
2013
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| Palavras-chave: |
Alelopatia
Cryptocarya moschata
Lauraceae
Germinação. allelopathy
Allelochemical
Lauraceae
Germination
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| Resumo: |
The aim of this work was to compare the allelopathic effects of aqueous leaf extracts from Cryptocarya moschata and Ocotea odorifera on the seed germination and initial growth of Lactuca sativa (lettuce). The extracts were prepared by cold maceration, which was accomplished by adding distilled water to the dried plant material 1:10 (w v-1) and grinding. The treatment concentrations (0, 0.25, 0.5, 0.75 and 1%) were obtained by dissolving the dried crude extract in distilled water. The allelopathic potential of the dried Ocotea odorifera and Cryptocarya moschata leaves on Lactuca sativa was observed through reduction of the percentage of seeds that germinated, the index of germination and the length of the roots as well as structural abnormalities in L. sativa seedlings. For both extracts, the extract concentration and allelopathic effect were highly correlated. However, the C. moschata extract had no effect on caulicle length at the different tested concentrations.
The aim of this work was to compare the allelopathic effects of aqueous leaf extracts from Cryptocarya moschata and Ocotea odorifera on the seed germination and initial growth of Lactuca sativa (lettuce). The extracts were prepared by cold maceration, which was accomplished by adding distilled water to the dried plant material 1:10 (w v-1) and grinding. The treatment concentrations (0, 0.25, 0.5, 0.75 and 1%) were obtained by dissolving the dried crude extract in distilled water. The allelopathic potential of the dried Ocotea odorifera and Cryptocarya moschata leaves on Lactuca sativa was observed through reduction of the percentage of seeds that germinated, the index of germination and the length of the roots as well as structural abnormalities in L. sativa seedlings. For both extracts, the extract concentration and allelopathic effect were highly correlated. However, the C. moschata extract had no effect on caulicle length at the different tested concentrations.
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15758
10.4025/actasciagron.v35i2.15758
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| Editor: |
Universidade Estadual de Maringá
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| Formato: |
application/pdf
application/pdf
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| Fonte: |
Acta Scientiarum. Agronomy; v. 35, n. 2 (2013); 197-202
Acta Scientiarum. Agronomy; v. 35, n. 2 (2013); 197-202
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| Direitos: |
DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Agronomy, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any other scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).
DECLARACIÓN DE ORIGINALIDAD Y CESIÓN DE DERECHOS DE AUTOR Declaro que el presente artículo es original, no fue sometido a la publicación en cualquier otro periódico nacional o internacional, sea en parte o en su totalidad. Declaro, aun, que una vez publicado en la revista Acta Scientiarum. Agronomy, editado por la Universidad Estadual de Maringá, éste jamás será sometido por mí o por cualquier uno de los demás coautores a cualquier otro periódico. A través de este instrumento, en mi nombre y en nombre de los demás coautores, por ventura existentes, cedo los derechos de autor del referido artículo a la Universidad Estadual de Maringá y declaro estar informado de que la no observancia de este compromiso someterá al infractor las sanciones y penas previstas en la Ley de Protección de Derechos de Autor (Nº9609, de 19/02/98).
DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAISDeclaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Agronomy, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).
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