Resumo

REYES-RAMIREZ, Arturo et al. Effectiveness of microbial inoculants on growth and productivity of habanero pepper (Capsicum chinense Jacq.). Agrociencia [online]. 2014, vol.48, n.3, pp.285-294. ISSN 2521-9766.

The use of microbial inoculants is a viable alternative to nurture crops and increase productivity without damaging the soil. The objective ofthis study was to evaluate the effect of microbial inoculants on growth and productivity of habanero pepper (Capsicum chinense Jacq.) in a greenhouse conditions. The study was conducted in Conkal, Yucatan, Mexico, from September to December 2012. Three inoculants and a control (without application of inoculant) were evaluated under commercial chemical fertilizer. A completely randomized design was used and treatments were Rhizophagus irregularis (one spore mL^-1), Pseudomonas spp. (1X10⁶ cfu mL^-1) and Azospirillum brasilense (1X10⁶ cfu mL^-1). ANOVA and Tukey's comparison of means (p ≤ 0.05) were performed using SAS. The application of inoculants was performed during transplantation and response variables were growth, productivity and foliage nutrient content (N, P, K). The plants treated with Pseudomonas spp. were significantly higher, and showed greater stem diameter and total dry biomass than the control plants 120 d after transplanting. In this same treatment the highest yield (899.84 g per plant) was obtained and fruits were larger, with greater diameter and weight. The mineral content of leaves was not different (p>0.05) between the plants treated with inoculants and those of the control. Inoculation of Pseudomonas spp. to habanero pepper during transplantation enhances growth, yield and fruit size.

Palavras-chave : Capsicum chinense; microbial inoculants; Pseudomonas spp.; fertilization.

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