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Título : New rhizobia strains isolated from the Amazon region fix atmospheric nitrogen in symbiosis with cowpea and increase its yield
Autor : Ferreira, Paulo Ademar Avelar
Pereira, João Paulo Andrade Resende
Oliveira, Dâmiany Pádua
Vale, Helson Mário Martins do
Jesus, Ederson da Conceição
Soares, André Luis de Lima
Nogueira, Cláudia de Oliveira Gonçalves
Andrade, Messias José Bastos de
Moreira, Fátima Maria de Souza
metadata.dc.identifier.orcid: http://orcid.org/0000-0002-5622-6303
http://orcid.org/0000-0002-9852-3939
http://orcid.org/0000-0002-1817-4020
http://orcid.org/0000-0002-5452-3873
http://orcid.org/0000-0002-2687-8976
http://orcid.org/0000-0001-8244-0912
http://orcid.org/0000-0002-1812-3645
http://orcid.org/0000-0001-7056-2349
http://orcid.org/0000-0003-0159-5811
Assunto:: Feijão-de-corda
Nitrogênio
Inoculação artificial
Nitrogênio - fixação
Fecha de publicación : 2019
Editorial : Instituto Agronômico de Campinas
Citación : FERREIRA, Paulo Ademar Avelar et al. New rhizobia strains isolated from the Amazon region fix atmospheric nitrogen in symbiosis with cowpea and increase its yield. Bragantia, Campinas, v. 78, n. 1, p. 38-42, 2019. DOI:https://doi.org/10.1590/1678-4499.2018053. Disponível em: http://scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000100038. Acesso em: 23 jan.2020.
Abstract: Studies in the Amazon indicate a wide diversity of rhizobia with the ability for biological nitrogen fixation (BNF), which could expand the number of strains approved for cowpea. Thus, the aim of this field study was to evaluate the agronomic performance in cowpea of the several strains isolated from the soils of the Brazilian states Acre and Rondônia, and to compare them withstrains approved by the Ministry of Agriculture (MAPA) and withnon-inoculated controls (without and with mineral nitrogen fertilizer). The inoculants performed well. Though less effective than the other strains, the UFLA 03-36 strain also was prominent with respect to grain yield. Because of the positive response of the UFLA 03-129 strain, which led to yield increases greater than the obtained from the control without inoculation plus mineral-N, it can be recommended as an inoculum for cowpea. Further investigations should be carried out to obtain MAPA’s approval for their use. Other experiments involving this strain and several cultivars are being carried out on other types of soil and environmental conditions of the state of Minas Gerais.
Licença:: (CC BY)
DOI: https://doi.org/10.1590/1678-4499.2018053
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