Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)

Detalhes bibliográficos
Autor(a) principal: SOUZA, Amanda Cordeiro de Melo
Data de Publicação: 2015
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/tede2/5571
Resumo: The cowpea [Vigna unguiculata (L.) Walp] is a autogamous plant that presents cleistogamy, widely cultivated in the North and Northeast regions of Brazil. It’s rusticity and phenotypic plasticity allow it’s cultivation in adverse weather conditions and soil and it is capable of establishing symbiosis with rhizobia, with biological nitrogen fixation (BNF). BNF fixes atmospheric N2 by an enzymatic complex called nitrogenase. Rhizobia strains, to fix nitrogen with plants, depend on factors intrinsic to the bacteria-legume symbiosis process and on environmental factors that affect the survival of the plant. The objective was to evaluate symbiotic compatibility and efficiency of isolates obtained from the soils semi-arid region of Pernambuco and the recommended strain BR 3262, and its symbiotic stability in cultivars BR 17-Gurguéia, IPA 206 and BRS Novaera selected for different regions of Brazil. A greenhouse experiment was conducted with these cultivars, 25 isolates, the recommended strain and uninoculated treatments with and without N. Harvest was 45 days after inoculation and dry matter of shoots, roots and nodules, nodule number, dry weight of nodules by number of nodules, N accumulated in shoots dry matter by nodules, N content in the shoot, N accumulation in the shoots on the recommended efficiency strain based on the accumulation of nitrogen, on the recommended efficiency strain based on dry matter of shoots were determined. The plants of all inoculated treatments nodulated. Sixteen isolates did not differ from BR 3262 nodules dry matter. For dry weight of nodules by number of nodules, 20 isolates did not differ from BR 3262, and 18 isolates were similar to nitrogen accumulated in the shoot dry matter by the nodules. The nitrogen treatment with and without inoculation were among the lowest average for N content in shoot and relative efficiency of N accumulation compared to the inoculated treatments. The strains with improved stability and adaptability to cultivar with high potential for biological nitrogen fixation are G7.85 and BR 3262.
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spelling LIRA JUNIOR, Mario de AndradeCOSTA, Antonio Félix daFREITAS, Ana Dolores Santiago deTABOSA, José NildoSOUSA, Clayton Albuquerque dehttp://lattes.cnpq.br/8455214873348059SOUZA, Amanda Cordeiro de Melo2016-09-20T12:13:55Z2015-02-23SOUZA, Amanda Cordeiro de Melo. Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp). 2015. 68 f. Dissertação (Programa de Pós-Graduação em Melhoramento Genético de Plantas) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5571The cowpea [Vigna unguiculata (L.) Walp] is a autogamous plant that presents cleistogamy, widely cultivated in the North and Northeast regions of Brazil. It’s rusticity and phenotypic plasticity allow it’s cultivation in adverse weather conditions and soil and it is capable of establishing symbiosis with rhizobia, with biological nitrogen fixation (BNF). BNF fixes atmospheric N2 by an enzymatic complex called nitrogenase. Rhizobia strains, to fix nitrogen with plants, depend on factors intrinsic to the bacteria-legume symbiosis process and on environmental factors that affect the survival of the plant. The objective was to evaluate symbiotic compatibility and efficiency of isolates obtained from the soils semi-arid region of Pernambuco and the recommended strain BR 3262, and its symbiotic stability in cultivars BR 17-Gurguéia, IPA 206 and BRS Novaera selected for different regions of Brazil. A greenhouse experiment was conducted with these cultivars, 25 isolates, the recommended strain and uninoculated treatments with and without N. Harvest was 45 days after inoculation and dry matter of shoots, roots and nodules, nodule number, dry weight of nodules by number of nodules, N accumulated in shoots dry matter by nodules, N content in the shoot, N accumulation in the shoots on the recommended efficiency strain based on the accumulation of nitrogen, on the recommended efficiency strain based on dry matter of shoots were determined. The plants of all inoculated treatments nodulated. Sixteen isolates did not differ from BR 3262 nodules dry matter. For dry weight of nodules by number of nodules, 20 isolates did not differ from BR 3262, and 18 isolates were similar to nitrogen accumulated in the shoot dry matter by the nodules. The nitrogen treatment with and without inoculation were among the lowest average for N content in shoot and relative efficiency of N accumulation compared to the inoculated treatments. The strains with improved stability and adaptability to cultivar with high potential for biological nitrogen fixation are G7.85 and BR 3262.O feijão-caupi [Vigna unguiculata (L.) Walp] é uma planta autógama, que apresenta cleistogamia, amplamente cultivado nas regiões Norte e Nordeste do Brasil. Sua rusticidade e plasticidade fenotípica permitem cultivá-lo em condições de clima e solo adversas e é capaz de estabelecer simbiose com rizóbios, ocorrendo a fixação biológica de nitrogênio (FBN). A FBN fixa o N2 atmosférico através de um complexo enzimático chamado nitrogenase. As estirpes de rizóbios, para fixar nitrogênio nas plantas, dependem de fatores intrínsecos do processo da simbiose bactéria-leguminosa e de fatores ambientais que afetam a sobrevivência da planta. O objetivo do trabalho foi avaliar a compatibilidade simbiótica e a eficiência de isolados obtidos a partir de solos da região semiárida de Pernambuco e da estirpe recomendada BR 3262, e sua estabilidade simbiótica nas variedades BR 17- Gurguéia, IPA 206 e BRS Novaera selecionadas para diferentes regiões do Brasil. Um experimento foi conduzido em casa de vegetação com as três variedades de caupi e 25 isolados, tratamentos sem inoculação com e sem N e inoculação com a estirpe referência BR 3262. A colheita foi aos 45 dias após a inoculação, determinando matérias secas da parte aérea, raiz e nódulos, número de nódulos, matéria seca de nódulos por número de nódulos, N acumulado na parte aérea pela matéria seca de nódulos, teor de N na parte aérea, acúmulo de N na parte aérea, eficiência relativa à estirpe recomendada baseada no acúmulo de nitrogênio, eficiência relativa à estirpe recomendada baseada na matéria seca da parte aérea. As plantas de todos os tratamentos inoculados nodularam. Para matéria seca dos nódulos, 16 isolados não diferiram de BR 3262. Para a matéria seca de nódulos por número de nódulos, 20 isolados não diferiram da BR 3262, e 18 isolados não diferiram para nitrogênio acumulado na parte aérea pela matéria seca de nódulos. Os tratamentos com e sem N e sem inoculação estiveram entre as menores médias para teor de N na parte aérea e eficiência relativa à recomendada baseada no acúmulo de N em comparação com os tratamentos inoculados. As estirpes com melhor estabilidade e adaptabilidade a variedades com alto potencial para fixação biológica de nitrogênio são G7.85 e BR 3262.Submitted by Mario BC (mario@bc.ufrpe.br) on 2016-09-20T12:13:55Z No. of bitstreams: 1 Amanda Cordeiro de Melo Souza.pdf: 353123 bytes, checksum: fafead9a2ad6ac1a30c9e9716b2a3d7e (MD5)Made available in DSpace on 2016-09-20T12:13:55Z (GMT). No. of bitstreams: 1 Amanda Cordeiro de Melo Souza.pdf: 353123 bytes, checksum: fafead9a2ad6ac1a30c9e9716b2a3d7e (MD5) Previous issue date: 2015-02-23application/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Melhoramento Genético de PlantasUFRPEBrasilDepartamento de AgronomiaVigna unguiculataFixação de nitrogênioCompatibilidade simbióticaCowpeaNitrogen fixationSymbiotic compatibilityFITOTECNIA::MELHORAMENTO VEGETALSeleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) 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dc.title.por.fl_str_mv Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
title Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
spellingShingle Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
SOUZA, Amanda Cordeiro de Melo
Vigna unguiculata
Fixação de nitrogênio
Compatibilidade simbiótica
Cowpea
Nitrogen fixation
Symbiotic compatibility
FITOTECNIA::MELHORAMENTO VEGETAL
title_short Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
title_full Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
title_fullStr Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
title_full_unstemmed Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
title_sort Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp)
author SOUZA, Amanda Cordeiro de Melo
author_facet SOUZA, Amanda Cordeiro de Melo
author_role author
dc.contributor.advisor1.fl_str_mv LIRA JUNIOR, Mario de Andrade
dc.contributor.advisor-co1.fl_str_mv COSTA, Antonio Félix da
dc.contributor.advisor-co2.fl_str_mv FREITAS, Ana Dolores Santiago de
dc.contributor.referee1.fl_str_mv TABOSA, José Nildo
dc.contributor.referee2.fl_str_mv SOUSA, Clayton Albuquerque de
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/8455214873348059
dc.contributor.author.fl_str_mv SOUZA, Amanda Cordeiro de Melo
contributor_str_mv LIRA JUNIOR, Mario de Andrade
COSTA, Antonio Félix da
FREITAS, Ana Dolores Santiago de
TABOSA, José Nildo
SOUSA, Clayton Albuquerque de
dc.subject.por.fl_str_mv Vigna unguiculata
Fixação de nitrogênio
Compatibilidade simbiótica
topic Vigna unguiculata
Fixação de nitrogênio
Compatibilidade simbiótica
Cowpea
Nitrogen fixation
Symbiotic compatibility
FITOTECNIA::MELHORAMENTO VEGETAL
dc.subject.eng.fl_str_mv Cowpea
Nitrogen fixation
Symbiotic compatibility
dc.subject.cnpq.fl_str_mv FITOTECNIA::MELHORAMENTO VEGETAL
description The cowpea [Vigna unguiculata (L.) Walp] is a autogamous plant that presents cleistogamy, widely cultivated in the North and Northeast regions of Brazil. It’s rusticity and phenotypic plasticity allow it’s cultivation in adverse weather conditions and soil and it is capable of establishing symbiosis with rhizobia, with biological nitrogen fixation (BNF). BNF fixes atmospheric N2 by an enzymatic complex called nitrogenase. Rhizobia strains, to fix nitrogen with plants, depend on factors intrinsic to the bacteria-legume symbiosis process and on environmental factors that affect the survival of the plant. The objective was to evaluate symbiotic compatibility and efficiency of isolates obtained from the soils semi-arid region of Pernambuco and the recommended strain BR 3262, and its symbiotic stability in cultivars BR 17-Gurguéia, IPA 206 and BRS Novaera selected for different regions of Brazil. A greenhouse experiment was conducted with these cultivars, 25 isolates, the recommended strain and uninoculated treatments with and without N. Harvest was 45 days after inoculation and dry matter of shoots, roots and nodules, nodule number, dry weight of nodules by number of nodules, N accumulated in shoots dry matter by nodules, N content in the shoot, N accumulation in the shoots on the recommended efficiency strain based on the accumulation of nitrogen, on the recommended efficiency strain based on dry matter of shoots were determined. The plants of all inoculated treatments nodulated. Sixteen isolates did not differ from BR 3262 nodules dry matter. For dry weight of nodules by number of nodules, 20 isolates did not differ from BR 3262, and 18 isolates were similar to nitrogen accumulated in the shoot dry matter by the nodules. The nitrogen treatment with and without inoculation were among the lowest average for N content in shoot and relative efficiency of N accumulation compared to the inoculated treatments. The strains with improved stability and adaptability to cultivar with high potential for biological nitrogen fixation are G7.85 and BR 3262.
publishDate 2015
dc.date.issued.fl_str_mv 2015-02-23
dc.date.accessioned.fl_str_mv 2016-09-20T12:13:55Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
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dc.identifier.citation.fl_str_mv SOUZA, Amanda Cordeiro de Melo. Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp). 2015. 68 f. Dissertação (Programa de Pós-Graduação em Melhoramento Genético de Plantas) - Universidade Federal Rural de Pernambuco, Recife.
dc.identifier.uri.fl_str_mv http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5571
identifier_str_mv SOUZA, Amanda Cordeiro de Melo. Seleção de rizóbios e compatibilidade simbiótica em diferentes variedades de feijão-caupi (Vigna unguiculata (L.) Walp). 2015. 68 f. Dissertação (Programa de Pós-Graduação em Melhoramento Genético de Plantas) - Universidade Federal Rural de Pernambuco, Recife.
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dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Departamento de Agronomia
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