Pigmentation and mineral composition of different Azolla species.
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/15522 |
Resumo: | An experiment was conducted to study pigmentation (chlorophyl and anthocyanin) and mineral composition (P, K, Ca, Mg, Zn, Cu, Mn, Fe) of different Azolla ecotypes representatives of Azolla caroliniana, Azolla filiculoides, Azolla microphylla, and Azolla mexicana species, growing under field conditions. The experiment was repeated at different periods (June, August, September and October, 1985), in the same area, in randomized blocks, with five replicates. There was no correlation between the level of plant nutrients and Azolla pigmentation. Dry matter weight and relative growth rate (RGR) were different among species and period of year. The highest relative growth rates varied from 0.232 and 0.466 g/g of inoculum.day-1, for periods of low (June) and high (October) growth, respectively. There was an effect of plant species and period of the year on P, K, Mg and Ca absorption; however absorption of micronutrients was only affected by the period of the year. Azolla pigmentation seems to be linked to a genetic plant character. |
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Pigmentation and mineral composition of different Azolla species.Pigmentação e composição mineral de diferentes espécies de Azolla.N-fixation; symbiosis; chlorophyl; anthocyanin; Azolla ecotypesfixação de N; simbiose; clorofila; antocianina; ecótipos de AzollaAn experiment was conducted to study pigmentation (chlorophyl and anthocyanin) and mineral composition (P, K, Ca, Mg, Zn, Cu, Mn, Fe) of different Azolla ecotypes representatives of Azolla caroliniana, Azolla filiculoides, Azolla microphylla, and Azolla mexicana species, growing under field conditions. The experiment was repeated at different periods (June, August, September and October, 1985), in the same area, in randomized blocks, with five replicates. There was no correlation between the level of plant nutrients and Azolla pigmentation. Dry matter weight and relative growth rate (RGR) were different among species and period of year. The highest relative growth rates varied from 0.232 and 0.466 g/g of inoculum.day-1, for periods of low (June) and high (October) growth, respectively. There was an effect of plant species and period of the year on P, K, Mg and Ca absorption; however absorption of micronutrients was only affected by the period of the year. Azolla pigmentation seems to be linked to a genetic plant character.Foi realizado um estudo com a finalidade de pesquisar o desenvolvimento da pigmentação e composição mineral (P, K, Ca, Mg, Zn, Cu, Mn e Fe) de diferentes ecótipos representativos das espécies Azolla caroliniana, Azolla filiculoides, Azolla microphylla e Azolla mexicana, desenvolvidas sob condições de cultivo no campo, em diferentes épocas (junho, agosto, setembro e outubro 1985). Os experimentes foram conduzidos no mesmo local, em blocos ao acaso, com cinco repetições. Não houve correlação entre o nível de nutrientes e a pigmentação da Azolla. O desenvolvimento, avaliado pelo peso da matéria seca e pela taxa de crescimento relativo (TCR), foi diferenciado em relação à espécie e à época de cultivo. As taxas de crescimento relativo mais altas foram de 0,232 e 0,466 g/g de inóculo - dia-1, respectivamente para a época de menor (junho) e maior (outubro) desenvolvimento da Azolla. Houve um efeito da espécie e da época do ano na absorção de P, K, Mg e Ca, enquanto que a absorção de micronutrientes só foi modificada pela época de cultivo da Azolla. A pigmentação parece estar ligada fundamentalmente a um caráter genético da planta.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRuschel, Alaídes PuppinFilho, Austrelino SilveiraSantos, Alberto Baeta dosZimmermann, Francisco José P.2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15522Pesquisa Agropecuaria Brasileira; v.24, n.4, abr. 1989; 431-436Pesquisa Agropecuária Brasileira; v.24, n.4, abr. 1989; 431-4361678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15522/9486info:eu-repo/semantics/openAccess2014-08-25T18:30:16Zoai:ojs.seer.sct.embrapa.br:article/15522Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-25T18:30:16Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Pigmentation and mineral composition of different Azolla species. Pigmentação e composição mineral de diferentes espécies de Azolla. |
title |
Pigmentation and mineral composition of different Azolla species. |
spellingShingle |
Pigmentation and mineral composition of different Azolla species. Ruschel, Alaídes Puppin N-fixation; symbiosis; chlorophyl; anthocyanin; Azolla ecotypes fixação de N; simbiose; clorofila; antocianina; ecótipos de Azolla |
title_short |
Pigmentation and mineral composition of different Azolla species. |
title_full |
Pigmentation and mineral composition of different Azolla species. |
title_fullStr |
Pigmentation and mineral composition of different Azolla species. |
title_full_unstemmed |
Pigmentation and mineral composition of different Azolla species. |
title_sort |
Pigmentation and mineral composition of different Azolla species. |
author |
Ruschel, Alaídes Puppin |
author_facet |
Ruschel, Alaídes Puppin Filho, Austrelino Silveira Santos, Alberto Baeta dos Zimmermann, Francisco José P. |
author_role |
author |
author2 |
Filho, Austrelino Silveira Santos, Alberto Baeta dos Zimmermann, Francisco José P. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Ruschel, Alaídes Puppin Filho, Austrelino Silveira Santos, Alberto Baeta dos Zimmermann, Francisco José P. |
dc.subject.por.fl_str_mv |
N-fixation; symbiosis; chlorophyl; anthocyanin; Azolla ecotypes fixação de N; simbiose; clorofila; antocianina; ecótipos de Azolla |
topic |
N-fixation; symbiosis; chlorophyl; anthocyanin; Azolla ecotypes fixação de N; simbiose; clorofila; antocianina; ecótipos de Azolla |
description |
An experiment was conducted to study pigmentation (chlorophyl and anthocyanin) and mineral composition (P, K, Ca, Mg, Zn, Cu, Mn, Fe) of different Azolla ecotypes representatives of Azolla caroliniana, Azolla filiculoides, Azolla microphylla, and Azolla mexicana species, growing under field conditions. The experiment was repeated at different periods (June, August, September and October, 1985), in the same area, in randomized blocks, with five replicates. There was no correlation between the level of plant nutrients and Azolla pigmentation. Dry matter weight and relative growth rate (RGR) were different among species and period of year. The highest relative growth rates varied from 0.232 and 0.466 g/g of inoculum.day-1, for periods of low (June) and high (October) growth, respectively. There was an effect of plant species and period of the year on P, K, Mg and Ca absorption; however absorption of micronutrients was only affected by the period of the year. Azolla pigmentation seems to be linked to a genetic plant character. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-17 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15522 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/15522 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15522/9486 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.24, n.4, abr. 1989; 431-436 Pesquisa Agropecuária Brasileira; v.24, n.4, abr. 1989; 431-436 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416687614164992 |