Resumo

ALVAREZ-GONZALEZ, Aquile; MARTIN-ALONSO, Gloria Marta  e  RIVERA-ESPINOSA, Ramón Antonio. Evaluation of arbuscular mycorrhizal inoculants in Zea mays L. on Vertic Gleysol soil of Panama. Pastos y Forrajes [online]. 2022, vol.45, pp. 1-10.  Epub 28-Dez-2022. ISSN 2078-8452.

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Objectives: To determine the most efficient arbuscular mycorrhizal inoculant on the growth and development of Zea mays L. on a vertic gleysol soil of Darien, Republic of Panama.

Materials and Methods: The experiment was conducted under conditions of 5-kg pots, repeated twice. Inoculants based on the strains Funneliformis mosseae (syn. Glomus mosseae), strain INCAM 2; Glomus cubense, strain INCAM 4 and Rhizophagus irregularis (syn. Rhizoglomus irregulare), strain INCAM 11, were evaluated in a complete randomized design with five replicas.

Results: When the principal component analysis was performed, the first two components explained 85,8 and 99,1 % of the total variance in the first and second replicas of the experiment, respectively. In addition, the highest values of the evaluated variables were always found with the inoculation of strain INCAM2.

Conclusions: The results show that Z. mays responds positively to mycorrhizal inoculation, with positive increases in the evaluated variables. The performance of the three inoculants under study showed different degrees of effectiveness. The most effective inoculant under the studied edaphoclimatic conditions was the one containing strain INCAM2, of the species Funneliformis mosseae (syn. Glomus mosseae).

Palavras-chave : microbiological strains; corn; Glomus mosseae.

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