Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/50965
Título: Inoculation with Rhizobium tropici can totally replace N-fertilization in the recently released BRSMG Uai bean cultivar
Palavras-chave: Phaseolus vulgaris
N sources - Management
Biological nitrogen fixation
Symbiotic efficiency
Feijão - Adubos e fertilizantes
Fontes de nitrogênio - Manejo
Fertilizantes nitrogenados
Fixação biológica de nitrogênio
Eficiência simbiótica
Data do documento: Fev-2022
Editor: Universidade Estadual de Maringá
Citação: OLIVEIRA, D. P. et al. Inoculation with Rhizobium tropici can totally replace N-fertilization in the recently released BRSMG Uai bean cultivar. Acta Scientiarum. Agronomy, Maringá, v. 44, e52475, 2022. DOI: 10.4025/actasciagron.v44i1.52475.
Resumo: The BRSMG Uai common bean cultivar (Phaseolus vulgaris L.) unites traits required by producers, such as high yield and upright stands, the latter of which is considerably improved in relation to previously released cultivars such as BRSMG Madrepérola and Pérola. However, the potential of the cultivar to form symbiotic relationships with rhizobia to fix N2 has not yet been assessed. Here, field experiments were conducted to assess the efficiency of biological nitrogen fixation (BNF) in the cultivar, and to compare this to the efficiencies of other genetic materials widely grown throughout Brazil (BRSMG Madrepérola and Pérola). Experiments were conducted on two Oxisols in Minas Gerais State, Brazil (one during the dry season in the south, and the other during the winter season in the Alto-Paranaíba region), under a no-tillage system over maize stover. A randomized block experimental design was implemented in a 3 × 3 factorial arrangement with four replicates. Individual and combined Analysis of Variance were performed and the data were normalized. Homogeneity of the residual mean squares was observed. Significant effects of factors were identified by Scott-Knott tests and F tests. The BRSMG Uai cultivar responded to inoculation with the rhizobial strain CIAT 899, with yields similar to those achieved upon fertilization with 80 kg ha-1 of N-urea and to the yields of the BRSMG Madrepérola and Pérola cultivars inoculated with the same rhizobial strain. In terms of commercial use, this cultivar may be successful under either of the management practices adopted for N supply, and from the perspective of plant breeding, it has potential for inclusion in breeding programs directed toward improving BNF.
URI: http://repositorio.ufla.br/jspui/handle/1/50965
Aparece nas coleções:DCS - Artigos publicados em periódicos



Este item está licenciada sob uma Licença Creative Commons Creative Commons