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Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l.

In this research it was evaluated the allelopathic potential of aqueous extracts from Anacardium humile stems and leaves in seed germination and seedling growth of radish and lettuce. In the germination tests the aqueous extracts were used at 0, 4, 8, 12 and 16% (w/v) concentration. Four replicates...

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Principais autores: Periotto, Fernando, Juliano Gualtieri, Sonia Cristina, Lima, Maria Inês Salgueiro
Formato: Artigo
Idioma: Português
Publicado em: Universidade Tecnológica Federal do Paraná (UTFPR) 2012
Acesso em linha: http://periodicos.utfpr.edu.br/recit/article/view/4153
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spelling peri-article-41532024-04-14T21:57:28Z Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l. Periotto, Fernando Juliano Gualtieri, Sonia Cristina Lima, Maria Inês Salgueiro Ciências Exatas e da Terra In this research it was evaluated the allelopathic potential of aqueous extracts from Anacardium humile stems and leaves in seed germination and seedling growth of radish and lettuce. In the germination tests the aqueous extracts were used at 0, 4, 8, 12 and 16% (w/v) concentration. Four replicates of thirty seeds of lettuce and radish were distributed in Petri dishes covered with filter paper moistened with 5 mL different extracts, kept at 27 oC and light absence. The counting of germinated seeds was performed daily, being calculated speed and the percentage of germination. In tests measuring the germination percentage, only radish`s seeds were affected by the aqueous extracts of leaves 8%. The speed’s germination in lettuce seeds was significantly reduced using leaves extract at all concentrations. Leaf extracts 8, 12, 16% and stems extracts 8% also caused significant reductions in the speed germination of radish seeds. Growth experiments were carried out with four replicates of eight germinated seeds of lettuce and radish, at 27 oC, ten days after the germination and having filter paper as substratum, moistened with 0%, 4% and 12% of aqueous extracts. Both, lettuce and radish, presented a significant inhibition of total length when stem extracts were used. Leaves’s extracts 4% and 12% also produced significant growth inhibition in radish seedlings. The extracts interference on seed germination and seedling growth of lettuce and radish was disassociated of pH and osmotic potential influence, indicating an allelopathic potential of the species studied. Universidade Tecnológica Federal do Paraná (UTFPR) CNPq 2012-12-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf http://periodicos.utfpr.edu.br/recit/article/view/4153 10.3895/recit.v3.n6.4153 Technology and Innovation Scientific Electronic Journal; v. 3, n. 6 (2012); 2-14 Revista Eletrônica Científica Inovação e Tecnologia; v. 3, n. 6 (2012); 2-14 Revista Electrónica de Ciencia e Innovación Tecnológico; v. 3, n. 6 (2012); 2-14 2175-1846 10.3895/recit.v3.n6 por http://periodicos.utfpr.edu.br/recit/article/view/4153/pdf Direitos autorais 2016 CC-BY-NC http://creativecommons.org/licenses/by-nc/4.0
institution Universidade Tecnológica Federal do Paraná
collection PERI
language Português
format Artigo
author Periotto, Fernando
Juliano Gualtieri, Sonia Cristina
Lima, Maria Inês Salgueiro
spellingShingle Periotto, Fernando
Juliano Gualtieri, Sonia Cristina
Lima, Maria Inês Salgueiro
Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l.
author_sort Periotto, Fernando
title Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l.
title_short Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l.
title_full Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l.
title_fullStr Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l.
title_full_unstemmed Allelopathic effect of anacardium humile mart. In the germination and growth of Lactuca Sativa l. and Raphanus Sativus l.
title_sort allelopathic effect of anacardium humile mart. in the germination and growth of lactuca sativa l. and raphanus sativus l.
description In this research it was evaluated the allelopathic potential of aqueous extracts from Anacardium humile stems and leaves in seed germination and seedling growth of radish and lettuce. In the germination tests the aqueous extracts were used at 0, 4, 8, 12 and 16% (w/v) concentration. Four replicates of thirty seeds of lettuce and radish were distributed in Petri dishes covered with filter paper moistened with 5 mL different extracts, kept at 27 oC and light absence. The counting of germinated seeds was performed daily, being calculated speed and the percentage of germination. In tests measuring the germination percentage, only radish`s seeds were affected by the aqueous extracts of leaves 8%. The speed’s germination in lettuce seeds was significantly reduced using leaves extract at all concentrations. Leaf extracts 8, 12, 16% and stems extracts 8% also caused significant reductions in the speed germination of radish seeds. Growth experiments were carried out with four replicates of eight germinated seeds of lettuce and radish, at 27 oC, ten days after the germination and having filter paper as substratum, moistened with 0%, 4% and 12% of aqueous extracts. Both, lettuce and radish, presented a significant inhibition of total length when stem extracts were used. Leaves’s extracts 4% and 12% also produced significant growth inhibition in radish seedlings. The extracts interference on seed germination and seedling growth of lettuce and radish was disassociated of pH and osmotic potential influence, indicating an allelopathic potential of the species studied.
publisher Universidade Tecnológica Federal do Paraná (UTFPR)
publishDate 2012
url http://periodicos.utfpr.edu.br/recit/article/view/4153
_version_ 1805535735733813248
score 10,814766

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