%0 Journal Article %T Hongo endomicorr¨ªzico y bacteria fijadora de nitr¨®geno inoculadas a Coffea arabica en vivero %A Aguirre-Medina %A Juan Francisco %A Moroyoqui-Ovilla %A Daniela Montserrat %A Mendoza-L¨®pez %A Alexander %A Cadena-I£¿iguez %A Jorge %A Avenda£¿o-Arrazate %A Carlos Hugo %A Aguirre-Cadena %A Juan Francisco %J Agronom¨ªa Mesoamericana %D 2011 %I Scientific Electronic Library Online %X endomycorrhizic fungi and nitrogen-fixing bacteria inoculated in coffee nurseries. in order to study the effect of bio-fertilization of coffea arabica l. with azospirillum brasilense and glomus intraradice a trial was established in a nursery at the experimental station rosario izapa, chiapas, mexico from september 2005 to april 2006. we used a andosol-mollic soil typical of the soconusco coffee region of chiapas, mexico. a. brasilense had a concentration of 100 x 106 bacteria per gram of peat and the mycorrhizal fungi of 40 spores per gram of soil with 95% infection of the root system of onion. the treatments were the microorganisms alone, the combination of both, and the control without microorganism, which were arranged in a randomized complete block design. morphological and physiological yield components were evaluated every 30 days from the second month to seven months. the content of n, p and ca in plant tissue was determined. the results were analyzed statistically and differences between treatments were compared according to tukey 5%. the results indicate a differential response of microorganisms. a. brasilense induced greater root development and the double symbiosis g. intraradices + a. brasilense enhanced the development of stems and leaf blades. the content of n, p and ca are presented in a manner consistent with g. intraradices. %K inoculation %K allocation of dry matter %K nitrogen %K phosphorous %K calcium %K coffee. %U http://www.scielo.sa.cr/scielo.php?script=sci_abstract&pid=S1659-13212011000100008&lng=en&nrm=iso&tlng=en