Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.

Detalhes bibliográficos
Autor(a) principal: NASCIMENTO, Luciana Remigio Santos
Data de Publicação: 2009
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5227
Resumo: The cowpea (Vigna unguiculata (L.) Walp) is a widespread culture and is able to benefit from the Biological Nitrogen Fixation (BNF) when associated with bacteria known as rhizobia. This legume has a high capacity of nodulation and symbiotic nitrogen fixation in the presence of adequate population of rhizobia in the soil or by the use of efficient inoculants. Through knowledge of the diversity of rhizobia present in the different agricultural systems and rhizobia features to be introduced, we can improve the adaptability and competitiveness of Rhizobium inoculant. The objective of this study was to evaluate the diversity and efficiency in nitrogen fixation (N) of rhizobia isolated from bean nodules cowpea grown in soils under different vegetation covers the state of Paraíba. Soil samples were collected from the surface soil (0-20 cm) in three municipalities of the Agreste (Solan, Hope and Lagoa Seca), with different vegetation cover: 1) Caatinga; 2) Pasture; 3) Roçado bean and 4) Roçado Cassava. They were used four varieties of cowpea (Ever-Green, Sedinha, Little Owl and Blue) as bait plants. The formed nodules had their rhizobia isolated and characterized morfofisiologicamente. the diversity of study for the effect of vegetation cover and the cultivars was carried out. The evaluation of the effectiveness was performed in two steps. In the first, 52 isolates were inoculated in cultivating Always Green, who also received two strains recommended, presence and absence of mineral N in Leonard jars. In the second stage, the 13 best isolates from the stage in Leonard pots were inoculated in the same cultivar sown in pots with soil, and the recommended and the presence and absence of mineral N. The ability to infection by rhizobia ranged between cowpea. The diversity of rhizobia was influenced by different agricultural management. The rhizobia had a high capacity of atmospheric nitrogen fixation and were able to promote the development of cowpea plant equivalent to that received fertilization with mineral N or inoculation with strains recommended.
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spelling SANTOS, Carolina Etienne de Rosália e SilvaFREITAS, Ana Dolores SantiagoGALINDO, Izabel Cristina de LunaSTAMFORD, Newton Pereirahttp://lattes.cnpq.br/7345576819421910NASCIMENTO, Luciana Remigio Santos2016-08-09T11:55:35Z2009-03-03NASCIMENTO, Luciana Remigio Santos. Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp. 2009. 75 f. Dissertação (Programa de Pós-Graduação em Ciência do Solo) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5227The cowpea (Vigna unguiculata (L.) Walp) is a widespread culture and is able to benefit from the Biological Nitrogen Fixation (BNF) when associated with bacteria known as rhizobia. This legume has a high capacity of nodulation and symbiotic nitrogen fixation in the presence of adequate population of rhizobia in the soil or by the use of efficient inoculants. Through knowledge of the diversity of rhizobia present in the different agricultural systems and rhizobia features to be introduced, we can improve the adaptability and competitiveness of Rhizobium inoculant. The objective of this study was to evaluate the diversity and efficiency in nitrogen fixation (N) of rhizobia isolated from bean nodules cowpea grown in soils under different vegetation covers the state of Paraíba. Soil samples were collected from the surface soil (0-20 cm) in three municipalities of the Agreste (Solan, Hope and Lagoa Seca), with different vegetation cover: 1) Caatinga; 2) Pasture; 3) Roçado bean and 4) Roçado Cassava. They were used four varieties of cowpea (Ever-Green, Sedinha, Little Owl and Blue) as bait plants. The formed nodules had their rhizobia isolated and characterized morfofisiologicamente. the diversity of study for the effect of vegetation cover and the cultivars was carried out. The evaluation of the effectiveness was performed in two steps. In the first, 52 isolates were inoculated in cultivating Always Green, who also received two strains recommended, presence and absence of mineral N in Leonard jars. In the second stage, the 13 best isolates from the stage in Leonard pots were inoculated in the same cultivar sown in pots with soil, and the recommended and the presence and absence of mineral N. The ability to infection by rhizobia ranged between cowpea. The diversity of rhizobia was influenced by different agricultural management. The rhizobia had a high capacity of atmospheric nitrogen fixation and were able to promote the development of cowpea plant equivalent to that received fertilization with mineral N or inoculation with strains recommended.O feijão macassar (Vigna unguiculata (L.) Walp) é uma cultura amplamente distribuída e é capaz de se beneficiar da Fixação Biológica de Nitrogênio (FBN) quando em associação com bactérias conhecidas como rizóbios. Essa leguminosa apresenta alta capacidade de nodulação e fixação simbiótica de nitrogênio na presença de população adequada de rizóbios nativos no solo ou pelo uso de inoculantes eficientes. Através do conhecimento da diversidade de rizóbio presente nos diferentes sistemas agrícolas e das características do rizóbio a ser introduzido, podemos melhorar a adaptabilidade e capacidade competitiva do rizóbio do inoculante. O objetivo deste trabalho foi avaliar a diversidade e a eficiência na fixação de nitrogênio (N) de rizóbios isolados a partir de nódulos de feijão caupi cultivado em solos sob diferentes coberturas vegetais do Estado da Paraíba. As amostras de solo foram coletadas da camada arável (0 a 20 cm) de três municípios do agreste paraibano (Solânea, Esperança e Lagoa Seca), com diferentes coberturas vegetais: 1) Caatinga; 2) Pasto; 3) Roçado de Feijão e 4) Roçado de Mandioca. Foram usadas quatro cultivares de caupi (Sempre-Verde, Sedinha, Corujinha e Azul) como plantas iscas. Os nódulos formados tiveram seus rizóbios isolados e caracterizados morfofisiologicamente. Foi realizado o estudo de diversidade para o efeito das coberturas vegetais e para o das cultivares. A avaliação da eficiência foi realizada em duas etapas. Na primeira, 52 isolados foram inoculados na cultivar Sempre Verde, que recebeu também duas estirpes recomendadas, presença e ausência de N mineral, em vasos de Leonard. Na segunda etapa, os 13 melhores isolados oriundos da etapa em vasos de Leonard foram inoculados na mesma cultivar semeada em vasos com solo, bem como as recomendadas e presença e ausência de N mineral. A capacidade de infecção por rizóbios nativos variou entre as cultivares de feijão caupi. A diversidade de rizóbios foi influenciada pelos diferentes manejos agrícolas. Os rizóbios nativos apresentaram alta capacidade de fixação de nitrogênio atmosférico e foram capazes de promover o desenvolvimento do feijão caupi equivalente à das plantas que receberam adubação com N mineral ou inoculação com estirpes recomendadas.Submitted by (lucia.rodrigues@ufrpe.br) on 2016-08-09T11:55:35Z No. of bitstreams: 1 Luciana Remigio Santos Nascimento.pdf: 718083 bytes, checksum: 15733f3b15d262af2b110d9904d25e9e (MD5)Made available in DSpace on 2016-08-09T11:55:35Z (GMT). No. of bitstreams: 1 Luciana Remigio Santos Nascimento.pdf: 718083 bytes, checksum: 15733f3b15d262af2b110d9904d25e9e (MD5) Previous issue date: 2009-03-03Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Ciência do SoloUFRPEBrasilDepartamento de AgronomiaVigna unguiculataRizóbioMicrobiologia do soloAGRONOMIA::CIENCIA DO SOLODiversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) 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dc.title.por.fl_str_mv Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
title Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
spellingShingle Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
NASCIMENTO, Luciana Remigio Santos
Vigna unguiculata
Rizóbio
Microbiologia do solo
AGRONOMIA::CIENCIA DO SOLO
title_short Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
title_full Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
title_fullStr Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
title_full_unstemmed Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
title_sort Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp.
author NASCIMENTO, Luciana Remigio Santos
author_facet NASCIMENTO, Luciana Remigio Santos
author_role author
dc.contributor.advisor1.fl_str_mv SANTOS, Carolina Etienne de Rosália e Silva
dc.contributor.referee1.fl_str_mv FREITAS, Ana Dolores Santiago
dc.contributor.referee2.fl_str_mv GALINDO, Izabel Cristina de Luna
dc.contributor.referee3.fl_str_mv STAMFORD, Newton Pereira
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/7345576819421910
dc.contributor.author.fl_str_mv NASCIMENTO, Luciana Remigio Santos
contributor_str_mv SANTOS, Carolina Etienne de Rosália e Silva
FREITAS, Ana Dolores Santiago
GALINDO, Izabel Cristina de Luna
STAMFORD, Newton Pereira
dc.subject.por.fl_str_mv Vigna unguiculata
Rizóbio
Microbiologia do solo
topic Vigna unguiculata
Rizóbio
Microbiologia do solo
AGRONOMIA::CIENCIA DO SOLO
dc.subject.cnpq.fl_str_mv AGRONOMIA::CIENCIA DO SOLO
description The cowpea (Vigna unguiculata (L.) Walp) is a widespread culture and is able to benefit from the Biological Nitrogen Fixation (BNF) when associated with bacteria known as rhizobia. This legume has a high capacity of nodulation and symbiotic nitrogen fixation in the presence of adequate population of rhizobia in the soil or by the use of efficient inoculants. Through knowledge of the diversity of rhizobia present in the different agricultural systems and rhizobia features to be introduced, we can improve the adaptability and competitiveness of Rhizobium inoculant. The objective of this study was to evaluate the diversity and efficiency in nitrogen fixation (N) of rhizobia isolated from bean nodules cowpea grown in soils under different vegetation covers the state of Paraíba. Soil samples were collected from the surface soil (0-20 cm) in three municipalities of the Agreste (Solan, Hope and Lagoa Seca), with different vegetation cover: 1) Caatinga; 2) Pasture; 3) Roçado bean and 4) Roçado Cassava. They were used four varieties of cowpea (Ever-Green, Sedinha, Little Owl and Blue) as bait plants. The formed nodules had their rhizobia isolated and characterized morfofisiologicamente. the diversity of study for the effect of vegetation cover and the cultivars was carried out. The evaluation of the effectiveness was performed in two steps. In the first, 52 isolates were inoculated in cultivating Always Green, who also received two strains recommended, presence and absence of mineral N in Leonard jars. In the second stage, the 13 best isolates from the stage in Leonard pots were inoculated in the same cultivar sown in pots with soil, and the recommended and the presence and absence of mineral N. The ability to infection by rhizobia ranged between cowpea. The diversity of rhizobia was influenced by different agricultural management. The rhizobia had a high capacity of atmospheric nitrogen fixation and were able to promote the development of cowpea plant equivalent to that received fertilization with mineral N or inoculation with strains recommended.
publishDate 2009
dc.date.issued.fl_str_mv 2009-03-03
dc.date.accessioned.fl_str_mv 2016-08-09T11:55:35Z
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dc.identifier.citation.fl_str_mv NASCIMENTO, Luciana Remigio Santos. Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp. 2009. 75 f. Dissertação (Programa de Pós-Graduação em Ciência do Solo) - Universidade Federal Rural de Pernambuco, Recife.
dc.identifier.uri.fl_str_mv http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5227
identifier_str_mv NASCIMENTO, Luciana Remigio Santos. Diversidade e eficiência de rizóbios nativos do agreste da Paraíba, capazes de nodular o feijão Caupi (Vigna unguiculata (L.) Walp. 2009. 75 f. Dissertação (Programa de Pós-Graduação em Ciência do Solo) - Universidade Federal Rural de Pernambuco, Recife.
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