Evaluation of leucaena populations for tolerance to aluminum
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/15822 |
Resumo: | This paper aimed at verifying the existence of genetic variability in nutrient solution for aluminum tolerance among 29 populations of Ieucaena (Leucaena Ieucocephala (Lam.) de Wit.), tested under five different AI concentrations (0, 3, 6, 9 and 12 ppm) in two glasshouse experiments, and at classifying these populations according to their tolerance to AI. The traits under study in the classification of the populations for their AI tolerance were: length of the aerial portion (Y1), length of the longest root (Y2), dry weight of aerial portion (Y3), dry weight of roots (Y4), length of the first leaf (Y5), number of lateral branches (Y6), dry weight of the aerial portion/dry weight of roots ratio (Y7) and cotyledon persistence (Y8). The examination of the standardized means for the eight traits (Y1 to Y8) under the five AI concentrations over two experiments was able to screen populations T-1, T-2, T-3 and T-14 as being tolerant to AI, and T-4, T-5, T-12 and T-22 as being intolerant. The remaining populations showed variable results, depending on the trait considered. Since there is no previous information about the traits which are the most appropriate to screen for AI tolerance, the classification of these remaining 21 populations as tolerant/intolerant is inconclusive. |
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Evaluation of leucaena populations for tolerance to aluminumAvaliação de populações de leucena para tolerância ao alumínioLeucaena Ieucocephala; aluminum toxicity; tropical legume; nutrient solution; tropical pastureLeucaena leucocephala; toxidez de alumínio; leguminosa tropical; solução nutritiva; pastagem tropicalThis paper aimed at verifying the existence of genetic variability in nutrient solution for aluminum tolerance among 29 populations of Ieucaena (Leucaena Ieucocephala (Lam.) de Wit.), tested under five different AI concentrations (0, 3, 6, 9 and 12 ppm) in two glasshouse experiments, and at classifying these populations according to their tolerance to AI. The traits under study in the classification of the populations for their AI tolerance were: length of the aerial portion (Y1), length of the longest root (Y2), dry weight of aerial portion (Y3), dry weight of roots (Y4), length of the first leaf (Y5), number of lateral branches (Y6), dry weight of the aerial portion/dry weight of roots ratio (Y7) and cotyledon persistence (Y8). The examination of the standardized means for the eight traits (Y1 to Y8) under the five AI concentrations over two experiments was able to screen populations T-1, T-2, T-3 and T-14 as being tolerant to AI, and T-4, T-5, T-12 and T-22 as being intolerant. The remaining populations showed variable results, depending on the trait considered. Since there is no previous information about the traits which are the most appropriate to screen for AI tolerance, the classification of these remaining 21 populations as tolerant/intolerant is inconclusive.O objetivo do presente trabalho foi verificar a existência de variabilidade genética em solução nutritiva para tolerância ao alumínio em 29 populações de leucena (Leucaena leucocephala (Lam.) de Wit.), submetidas a cinco diferentes concentrações de AI (0, 3, 6, 9 e 12 ppm), em dois experimentos, em casa de vegetação e classificar as populações quanto à tolerância ao AI. Os caracteres utilizados para classificar as populações em relação à tolerância ao AI foram: comprimento da parte aérea (Y1), comprimento da maior raiz (Y2), peso seco da parte aérea (Y3), peso seco das raízes (Y4), comprimento da primeira folha (Y5), número de ramificações (Y6), relação peso seco da parte aérea/peso seco das raízes (Y7), e persistência dos cotilédones (Y8). Analisando-se as tabelas das médias padronizadas para as oito características (Y1 a Y8) nas cinco concentrações de AI em dois experimentos, só se conseguiu classificar as populações T-1, T-2, T-3 e T-14 como tolerantes e as T-4, T-5, T-12 e T-22 como intolerantes ao AI. As demais apresentaram resultados variáveis conforme a características analisada. Como não se pode, "a priori", afirmar qual das características melhor avalia a tolerância ao AI, a classificação destas 21 populações como tolerantes ou intolerantes fica difícil.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMaluf, Angela MariaMartins, Paulo SoderoMaluf, Wilson Roberto2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15822Pesquisa Agropecuaria Brasileira; v.19, n.7, jul. 1984; 859-866Pesquisa Agropecuária Brasileira; v.19, n.7, jul. 1984; 859-8661678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15822/9889info:eu-repo/semantics/openAccess2014-04-16T19:26:02Zoai:ojs.seer.sct.embrapa.br:article/15822Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T19:26:02Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Evaluation of leucaena populations for tolerance to aluminum Avaliação de populações de leucena para tolerância ao alumínio |
title |
Evaluation of leucaena populations for tolerance to aluminum |
spellingShingle |
Evaluation of leucaena populations for tolerance to aluminum Maluf, Angela Maria Leucaena Ieucocephala; aluminum toxicity; tropical legume; nutrient solution; tropical pasture Leucaena leucocephala; toxidez de alumínio; leguminosa tropical; solução nutritiva; pastagem tropical |
title_short |
Evaluation of leucaena populations for tolerance to aluminum |
title_full |
Evaluation of leucaena populations for tolerance to aluminum |
title_fullStr |
Evaluation of leucaena populations for tolerance to aluminum |
title_full_unstemmed |
Evaluation of leucaena populations for tolerance to aluminum |
title_sort |
Evaluation of leucaena populations for tolerance to aluminum |
author |
Maluf, Angela Maria |
author_facet |
Maluf, Angela Maria Martins, Paulo Sodero Maluf, Wilson Roberto |
author_role |
author |
author2 |
Martins, Paulo Sodero Maluf, Wilson Roberto |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Maluf, Angela Maria Martins, Paulo Sodero Maluf, Wilson Roberto |
dc.subject.por.fl_str_mv |
Leucaena Ieucocephala; aluminum toxicity; tropical legume; nutrient solution; tropical pasture Leucaena leucocephala; toxidez de alumínio; leguminosa tropical; solução nutritiva; pastagem tropical |
topic |
Leucaena Ieucocephala; aluminum toxicity; tropical legume; nutrient solution; tropical pasture Leucaena leucocephala; toxidez de alumínio; leguminosa tropical; solução nutritiva; pastagem tropical |
description |
This paper aimed at verifying the existence of genetic variability in nutrient solution for aluminum tolerance among 29 populations of Ieucaena (Leucaena Ieucocephala (Lam.) de Wit.), tested under five different AI concentrations (0, 3, 6, 9 and 12 ppm) in two glasshouse experiments, and at classifying these populations according to their tolerance to AI. The traits under study in the classification of the populations for their AI tolerance were: length of the aerial portion (Y1), length of the longest root (Y2), dry weight of aerial portion (Y3), dry weight of roots (Y4), length of the first leaf (Y5), number of lateral branches (Y6), dry weight of the aerial portion/dry weight of roots ratio (Y7) and cotyledon persistence (Y8). The examination of the standardized means for the eight traits (Y1 to Y8) under the five AI concentrations over two experiments was able to screen populations T-1, T-2, T-3 and T-14 as being tolerant to AI, and T-4, T-5, T-12 and T-22 as being intolerant. The remaining populations showed variable results, depending on the trait considered. Since there is no previous information about the traits which are the most appropriate to screen for AI tolerance, the classification of these remaining 21 populations as tolerant/intolerant is inconclusive. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-16 |
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/15822 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/15822 |
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/15822/9889 |
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.19, n.7, jul. 1984; 859-866 Pesquisa Agropecuária Brasileira; v.19, n.7, jul. 1984; 859-866 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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