Abstract

PENA CALZADA, Kolima et al. Growth promoter in Acacia mangium Willd. improves quality and reduces permanence in nursery. Rev. mex. de cienc. forestales [online]. 2024, vol.15, n.86, pp.52-76.  Epub Mar 03, 2025. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v15i86.1468.

Increasing the quality of seedlings in the nursery, reducing the permanence time and obtaining material that guarantees greater survival in the field is a concern of foresters today. Therefore, the objective of the research was to evaluate the effect of foliar application of a promoter based on amino acids on the growth, quality and residence time in the nursery of Acacia mangium. An experiment was established in a completely randomized design with four weekly foliar treatments: VA1 (1.2 mL L-1), VA2 (1.5 mL L-1), VA3 (1.8 mL L-1) and VA0(0). At 90 and 120 days after sowing (das), attributes and morphological indices of quality and growth rates were evaluated. It was found that the foliar application of VIUSID Agro® improved the morphological characteristics with the VA1 dose because, among other variables, it surpassed the control in the length of the plants by 65 and 54 %, while in the active growth rate the increases were 65 %. The morphological indices benefited mainly from the VA1 dose (1.2 mL L-1) where the Dickson index reached the average quality of 0.22 at 120 das with VA1. Findings suggest that the foliar application of the amino acid-based growth promoter improves morphological characteristics, growth rates and plays an important role in reducing the permanence of A. mangium seedlings in the nursery to a minimum time of 120 das when using the 1.2 mL L-1 dose.

Keywords : Acacia mangium Willd.; amino acids; foliar fertilization; growth rates; VIUSID Agro^®; forest nurseries.

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