Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/30316
Title: Symbiotic efficiency of rhizobia strains with cowpea in Southern Maranhão
Other Titles: Eficiência simbiótica de estirpes de rizóbio em feijão-caupi no Sul do Maranhão
Keywords: Vigna unguiculata
Biological nitrogen fixation
Diazotrofic bacteria
Forage
Fixação biológica de nitrogênio
Bactérias diazotróficas
Forragem
Issue Date: Sep-2016
Publisher: Universidade Federal Rural do Semi-Árido
Citation: FARIAS, T. P. et al. Symbiotic efficiency of rhizobia strains with cowpea in Southern Maranhão. Revista Caatinga, Mossoró, v. 29, n. 3, p. 611-618, set. 2016.
Abstract: The objective of this study was to evaluate the symbiotic efficiency of three novel nitrogen-fixing bacterial strains with cowpea cv. BRS Guariba as forage. Two experiments were carried out in the field in Balsas and São Raimundo das Mangabeiras, MA, in a randomized block design with seven treatments and four replications: three novel strains efficient in symbiotic nitrogen fixation with cowpea (UFLA 3 -153, UFLA 3-154 and UFLA 3-164), two strains already approved as inoculants by MAPA (UFLA 3-84/SEMIA 6461 and INPA 3-11B/SEMIA 6462), and two controls without inoculation, with and without mineral N. Symbiotic efficiency of strains was determined by the number of nodules, nodules dry matter, shoot dry matter, relative efficiency, crude protein content and shoot N content. Strains UFLA 3-154 and UFLA 3-164 were the most efficient in Balsas, whereas UFLA 3-153 and UFLA 3-164 were the most efficient in São Raimundo das Mangabeiras. Strains UFLA 3-153, UFLA 3-154 and UFLA 3-164 were more efficient in symbiotic nitrogen fixation with cowpea than the strains already approved as inoculants UFLA 3-84 and INPA 3-11B in the climatic and edaphic conditions of southern Maranhão. UFLA 3-164 is the most efficient strain in this region.
URI: http://repositorio.ufla.br/jspui/handle/1/30316
Appears in Collections:DCS - Artigos publicados em periódicos

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