Efecto de diferentes concentraciones de ácido antranílico en el crecimiento del maíz
Palabras clave: auxinas, fitohormonas, rizobacterias promotoras del crecimiento vegetal, Zea mays L.
Abstract: The plant growth-promoting ability of rhizo-bacterium Azospirillum brasilense is based on production of auxins and other hormones, among them outstanding antranilic acid (AA). In this work we determined the antranilic acid (0, 500, 1000, 3000, and 5000 ppm) effects on maize growth and dry biomass accumulation under greenhouse conditions using the hybrid 83G66. From 500 to 3000 ppm of AA significantly increased plant growth (leaf area and plant height) while 1000 and 3000 ppm of AA significantly increased dry biomass accumulation in maize compared with control (0 ppm). The 90 % of AA in maize plants was assimilated during the early 10 days after treatment.
Key words: Auxins, phyto-hormones, plant growth promoting rhizobacteria, Zea mays L.