Agronomic characterization of amaranth for cultivation in the Brazilian Savannah

Detalhes bibliográficos
Autor(a) principal: Teixeira, Danielly Leite
Data de Publicação: 2003
Outros Autores: Spehar, Carlos Roberto, Souza, Luiz Augusto Copati
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/6542
Resumo: The objective of this work was to characterize and evaluate 48 accessions of three species of amaranth (Amaranthus caudatus L., A. cruentus L., and A. hypochondriacus L.) for cropping systems in the Brazilian Savannah. A preliminary test was carried out in the glasshouse for seven descriptors and the accessions with suitable phenotypes were selected for field trials. The experimental design was that of randomized blocks, with three repetitions. The material selected presented agronomic desirable characteristics such as prickle absence, straight growing habit and presence of inflorescense. These experiments were carried out in Planaltina, DF, during the dry season, under irrigation, for two years. Generally, the accessions flowered 45 days after emergence and the plants were harvested after 90 to 100 days. The data were analyzed for principal components. The two first components responded for 92.18% of the variation. Three groups of similarity were established, using the nearest neighbor method that explained 86% of total variation. Independently of origin, the potential for cultivation of grain amaranth in the Savannah was expressed by the performance of some genotypes. Amaranth can be exploited for cultivation in the Brazilian Savannah and it will contribute for diversification of cropping systems.
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spelling Agronomic characterization of amaranth for cultivation in the Brazilian SavannahCaracterização agronômica de amaranto para cultivo na entressafra no CerradoAmaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; direct sowing; adaptation; agronomic charactersAmaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; plantio direto; adaptação; característica agronômicaThe objective of this work was to characterize and evaluate 48 accessions of three species of amaranth (Amaranthus caudatus L., A. cruentus L., and A. hypochondriacus L.) for cropping systems in the Brazilian Savannah. A preliminary test was carried out in the glasshouse for seven descriptors and the accessions with suitable phenotypes were selected for field trials. The experimental design was that of randomized blocks, with three repetitions. The material selected presented agronomic desirable characteristics such as prickle absence, straight growing habit and presence of inflorescense. These experiments were carried out in Planaltina, DF, during the dry season, under irrigation, for two years. Generally, the accessions flowered 45 days after emergence and the plants were harvested after 90 to 100 days. The data were analyzed for principal components. The two first components responded for 92.18% of the variation. Three groups of similarity were established, using the nearest neighbor method that explained 86% of total variation. Independently of origin, the potential for cultivation of grain amaranth in the Savannah was expressed by the performance of some genotypes. Amaranth can be exploited for cultivation in the Brazilian Savannah and it will contribute for diversification of cropping systems.O objetivo deste trabalho foi caracterizar e avaliar 48 acessos de três espécies de amaranto (Amaranthus caudatus L., A. cruentus L., e A. hypochondriacus L.) para cultivo na entressafra no Cerrado. Realizou-se seleção preliminar para sete descritores, em casa de vegetação, e os acessos com genótipos promissores foram selecionados para serem testados no campo. O delineamento experimental usado foi o de blocos casualizados, com três repetições. O material utilizado foi o que apresentou características agronômicas desejáveis, tais como ausência de espinhos, hábito ereto e presença de inflorescência. Os ensaios foram realizados em Planaltina, DF, na entressafra, com irrigação, por dois anos. Em geral, os acessos floresceram 45 dias após a emergência e as plantas foram colhidas entre 90 e 100 dias. Pela análise de componentes principais, verificou-se que os dois primeiros componentes representam 92,18% da variação. Foram estabelecidos três grupos de similaridade, pelo método dos vizinhos mais próximos, que explicaram 86% da variação total. O amaranto se adapta às condições climáticas e edafológicas do Brasil Central, apresenta características agronômicas desejáveis e tem potencial para se tornar uma opção de cultivo na entressafra.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraTeixeira, Danielly LeiteSpehar, Carlos RobertoSouza, Luiz Augusto Copati2003-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6542Pesquisa Agropecuaria Brasileira; v.38, n.1, jan. 2003; 45-51Pesquisa Agropecuária Brasileira; v.38, n.1, jan. 2003; 45-511678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6542/3599info:eu-repo/semantics/openAccess2014-08-12T19:34:12Zoai:ojs.seer.sct.embrapa.br:article/6542Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-12T19:34:12Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
Caracterização agronômica de amaranto para cultivo na entressafra no Cerrado
title Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
spellingShingle Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
Teixeira, Danielly Leite
Amaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; direct sowing; adaptation; agronomic characters
Amaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; plantio direto; adaptação; característica agronômica
title_short Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
title_full Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
title_fullStr Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
title_full_unstemmed Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
title_sort Agronomic characterization of amaranth for cultivation in the Brazilian Savannah
author Teixeira, Danielly Leite
author_facet Teixeira, Danielly Leite
Spehar, Carlos Roberto
Souza, Luiz Augusto Copati
author_role author
author2 Spehar, Carlos Roberto
Souza, Luiz Augusto Copati
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Teixeira, Danielly Leite
Spehar, Carlos Roberto
Souza, Luiz Augusto Copati
dc.subject.por.fl_str_mv Amaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; direct sowing; adaptation; agronomic characters
Amaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; plantio direto; adaptação; característica agronômica
topic Amaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; direct sowing; adaptation; agronomic characters
Amaranthus caudatus; Amaranthus cruentus; Amaranthus hypochondriacus; plantio direto; adaptação; característica agronômica
description The objective of this work was to characterize and evaluate 48 accessions of three species of amaranth (Amaranthus caudatus L., A. cruentus L., and A. hypochondriacus L.) for cropping systems in the Brazilian Savannah. A preliminary test was carried out in the glasshouse for seven descriptors and the accessions with suitable phenotypes were selected for field trials. The experimental design was that of randomized blocks, with three repetitions. The material selected presented agronomic desirable characteristics such as prickle absence, straight growing habit and presence of inflorescense. These experiments were carried out in Planaltina, DF, during the dry season, under irrigation, for two years. Generally, the accessions flowered 45 days after emergence and the plants were harvested after 90 to 100 days. The data were analyzed for principal components. The two first components responded for 92.18% of the variation. Three groups of similarity were established, using the nearest neighbor method that explained 86% of total variation. Independently of origin, the potential for cultivation of grain amaranth in the Savannah was expressed by the performance of some genotypes. Amaranth can be exploited for cultivation in the Brazilian Savannah and it will contribute for diversification of cropping systems.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-01
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dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6542
url https://seer.sct.embrapa.br/index.php/pab/article/view/6542
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/6542/3599
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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.38, n.1, jan. 2003; 45-51
Pesquisa Agropecuária Brasileira; v.38, n.1, jan. 2003; 45-51
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
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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)
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