Exploring the interaction effects between common bean cultivars and rhizobia inoculation on plant growth and yield

• Published in: Journal of agriculture and food research 2024-03, Vol.15, p.100926, Article 100926
• Main Authors: Horácio, Eduardo Hélder, Zambrano Gavilanes, Freddy Eli, Feliciano, Marcos Vinicius, de Moraes, Juliana Gimenes, Zucareli, Claudemir, Andrade, Diva Souza, Maddela, Naga Raju, Prasad, Ram
• Format: Article
• Language: English
• Subjects: Biological nitrogen fixation; Chlorophyll nodulation; Phaseolus vulgaris; Rhizobium
• ISSN: 2666-1543; 2666-1543
• DOI: 10.1016/j.jafr.2023.100926

Assuming that common bean (Phaseolus vulgaris) cultivars differ in terms of the potential to respond to symbiosis with rhizobia, in this direction, this work aimed to identify those that are more efficient and responsive to biological nitrogen fixation. The interaction of common bean cultivars and rhizobia inoculation at greenhouse conditions was evaluated. Six common bean cultivars (IPR-Sabiá, IPR-Quero-Quero, IPR-Andorinha, IPR-Curió, IPR-Tangará, and IPR-Campos Gerais) were inoculated using a mixture of rhizobia strains (Rhizobium tropici and R. freirei). The completely randomized experimental design arranged in a 6 × 2 factorial scheme with five replications was used. Growth, nodulation, and yield performance of common bean cultivars with and without rhizobia inoculation were evaluated. Rhizobia strains increased nodulation, plant growth, and grain yield in all cultivars used. There was an influence of interaction between rhizobia inoculation and common bean cultivars on root volume, and on dry matter root and shoot. The cultivar IPR-Curió showed the highest number of nodules and nodule dry matter. It can be concluded that the inoculation was consistent for all cultivars used, but some differences in the response from the cultivars indicate a possible effect of the genotype. [Display omitted] •Nitrogen fertilization increases production costs to the agricultural producer and environmental damage.•Rhizobium tropici and R. freirei are an alternative in increasing bean grain yield, reducing production costs.•Rhizobia strains increase nodulation in different bean varieties.•The IPR bean varieties respond positively in their agronomic performance by inoculation with different strains of Rhizobium.