SciELO - Scientific Electronic Library Online

vol.9 issue4Evaluation of the potential of acuatic plants to remove total coliforms and Escherichia coli from wastewaterAnalysis of benthic macroinvertebrates and biotic indices to evaluate water quality in Sardina´s River, Ecuadorian Chocó Andino author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Enfoque UTE

On-line version ISSN 1390-6542Print version ISSN 1390-9363


VIERA, William et al. Quality parametres of four types of formulations based on Trichoderma asperellum and Purpuricillium lilacinum. Enfoque UTE [online]. 2018, vol.9, n.4, pp.145-153. ISSN 1390-6542.

The genus Trichoderma and to a lesser extent Purpureocillium, have been studied extensively for their properties as beneficial microorganisms and their effectiveness in disease control. However, biological efficacy is not the only parameter considered when formulating a microorganism; viability, purity and concentration in the formulation are important characteristics to ensure success in the field. The aim of this study was to access different types of formulations (granules, powders, liquids) to record their behavior over time, using the variables viability, concentration and purity to select best formulations based on these parameters. As a result, it was obtained that the bioformulates based on T. asperellum showed greater stability during storage, with dry solid formulations being more stable in comparison with liquid products. In terms of the P. lilacinum formulations, it was observed that the presentation of wettable powders showed the highest concentration and stability over the time.

Keywords : Trichoderma; Purpureocillium; viability; purity; concentration.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )