Resumen

TREJO, DORA et al. Effectiveness of native arbuscular mycorrhizal fungi consortia on coffee plants under greenhouse and field conditions. Rev. chil. hist. nat. [online]. 2011, vol.84, n.1, pp. 23-31. ISSN 0716-078X.  doi: 10.4067/S0716-078X2011000100002.

Seven arbuscular mycorrhizal fungal (AMF) consortia isolated from coffee plantations with different agricultural inputs (low, intermediate, and high) at several sites of Veracruz State were tested on their effects on the growth of coffee plants (Coffea arábica L.) var. Garnica under nursery and field conditions. Agricultural input influenced the AMF-composition, in which the highest input the lowest number of AMF-species. At greenhouse conditions, AMF-consortia significantly increased plant height (91 %) in comparison to the control and to the P-fertilized control (800 mg Ca(PO₄)₃ L^-1). After 130 days of inoculation (DAI), the best AMF-consortium was La Estanzuela (ES). At field conditions, after 290 DAI, the plants inoculated with the consortia ES, Miradores (MI), and Paso Grande (PG) had greater survival (> 80 %). The most effective AMF-consortia on plant growth promotion and survival under field conditions were collected from intermediate-input agricultural plantations (MI and ES), which also had the greatest number of AMF-species.

Palabras clave : coffee crop; growth; native AMF; plant survival.