Examinando por Materia "Hylocereus megalanthus"

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Manual de cosecha y poscosecha de pitahaya amarilla (Hylocereus megalanthus)
(Instituto Nacional de Innovación Agraria, 2021-07) Yoplac, Ives Julian; Chávez Santos, River; Santos Peláez, Julio César
El Ministerio de Desarrollo Agrario y Riego (MIDAGRI) a través del Instituto Nacional de Innovación Agraria (INIA), pone a disposición el presente “Manual de cosecha y poscosecha de pitahaya amarilla (Hylocereus megalanthus)”, como un documento técnico que describe de manera didáctica y mediante un lenguaje claro, los diferentes procesos de cosecha y poscosecha de esta fruta prometedora en muchos valles del Perú. Esperamos que esta contribución llegue a generar una motivación para los productores, técnicos, profesionales e investigadores quienes están interesados en conocer los procesos de cosecha y poscosecha de la pitahaya amarilla.
Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon
(Frontiers Media S.A., 2025-11-24) Santos Pelaez, Julio Cesar; Leiva Espinoza, Santos Triunfo; Espinoza Núñez, Erick; Saravia Navarro, David; Castillo Torrejon, Carlos Luis; Cruz Delgado, Julio Humberto Ignacio; Klauer Garcia, Dieter Fritz; Casanova Nuñez Melgar, David Pavel
The cultivation of yellow pitahaya (Hylocereus megalanthus) is increasing in tropical regions due to its nutritional value and market potential. Yet, agronomic strategies integrating nutrient and hormonal regulation remain scarcely studied. This research evaluated the combined effect of potassium (K₂O) and gibberellic acid (GA₃) on yield and fruit quality in field-grown pitahaya in the Peruvian Amazon using a 4 × 2 factorial randomized block design with four potassium doses (0, 50, 100, 150 kg ha⁻¹) and two GA₃ levels (0 and 50 mg L⁻¹). The combination of 100 kg K₂O ha⁻¹ and 50 mg L⁻¹ GA₃ significantly improved fruit performance, with fruit weight (369.5 g), yield (12 t ha⁻¹), volume (322 cm³), and soluble solids (22.8°Brix), while acidity decreased (pH 4.87 vs. 4.55 in the control). Potassium alone had a limited impact on fruit weight per plant, but under GA₃ application, a quadratic response was evident, with maximum values between 100–110 kg K ha⁻¹. Multivariate analyses confirmed that yield gains were driven by increases in fruit size and quality, with fertilized treatments clearly separated from controls. These findings demonstrate a synergistic interaction between potassium and GA₃, providing a basis for precision fertilization protocols that enhance yield and quality in high-value tropical fruit systems.