Resumen

CHAN-CUPUL, Wilberth et al. Biostimulants in the plant growth and yield of Capsicum chinense in greenhouse. Ecosistemas y recur. agropecuarios [online]. 2025, vol.12, n.3, e4252.  Epub 05-Dic-2025. ISSN 2007-901X.  https://doi.org/10.19136/era.a12n3.4252.

The production of habanero chili (Capsicum chinense Jacq.) has increased in the Region of Central Pacific of Mexico, including Colima. The objective was to evaluate the development and yield of habanero chili with foliar applications of biostimulants under greenhouse conditions. The biostimulants evaluated were: Kelpak® (Ecklonia maxima extract), Bitlefree® (Streptomyces spp. extract + amino acids), Castell® (Streptomyces spp. extract) and the control (without biostimulant). Applications were made at 7, 14, 21 and 35 days after transplantation (dat) at doses of 2.5 (7 and 14 dat) and 2.0 mL L-1 (21 and 35 dat). A randomized experimental design was used, the response variables were height, stem diameter, chlorophyll and leaf area index, fruit size (weight, length and width) and yield. The data were analyzed by analysis of variance and “Tukey” test mean comparison (p = 0.05). Castell® increased the height and diameter of C. chinense plants. The chlorophyll index in C. chinense leaves increased when was applied Castell® and Kelpak®. The three biostimulants increased the leaf area index, fruit size and yield. The averages increase in yield compared to the control, in the eight harvests carried out, were 7.80, 8.02 and 10.36 t ha-1 for Kelpak®, BliteFree® and Castell®, respectively. The use of biostimulants to produce habanero chili is an environmentally safe option to improve yields under greenhouse conditions in the Region of Central Pacific of Mexico.

Palabras llave : Amino acids; Habanero chili; Ecklonia maxima; extracts; Streptomyces.

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