Avaliação dos métodos de aplicação de uma nanopartícula no cultivo de antúrios

Abstract

Plants of the genus Anthurium are valued for their ornamental and landscaping potential. This study investigated the effect of a bio-stimulant based on organic carbon nanoparticles, specifically "Carbon Dots," on seedlings of Anthurium affine and Anthurium maricense, native Brazilian species. Seedlings aged 85 days were transplanted and subjected to treatments with the bio-stimulant at a concentration of 60 mg/L, applied both via foliar and soil, along with a control group without application. The substrate was supplemented with slow-release fertilizer, and the plants were irrigated three times a day. The bio-stimulant was applied biweekly, totaling four applications throughout the experiment. Plant height and leaf number were measured every 30 days, and at 96 days of cultivation, fresh weight, leaf area, dry weight of leaves and roots, as well as root length and volume, were evaluated. The results indicated that for the aerial part, variations were not significant in both species. However, for the root system, only the root volume of A. affine showed a significant increase with soil application. It was concluded that the bio-stimulant at a concentration of 60 mg/L did not enhance the growth of juvenile seedlings of A. affine and A. maricense up to 90 days of cultivation. However, soil application positively influenced root development in A. affine, suggesting it to be the most effective modality for maximizing root growth.