Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon
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 (K...
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| Format: | info:eu-repo/semantics/article |
| Language: | Inglés |
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Frontiers Media S.A.
2025
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| Online Access: | http://hdl.handle.net/20.500.12955/2970 https://doi.org/10.3389/fagro.2025.1677288 |
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| author | 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 |
| author_browse | Casanova Nuñez Melgar, David Pavel Castillo Torrejon, Carlos Luis Cruz Delgado, Julio Humberto Ignacio Espinoza Núñez, Erick Klauer Garcia, Dieter Fritz Leiva Espinoza, Santos Triunfo Santos Pelaez, Julio Cesar Saravia Navarro, David |
| author_facet | 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 |
| author_sort | Santos Pelaez, Julio Cesar |
| collection | Repositorio INIA |
| description | 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. |
| format | info:eu-repo/semantics/article |
| id | INIA2970 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Frontiers Media S.A. |
| publisherStr | Frontiers Media S.A. |
| record_format | dspace |
| spelling | INIA29702025-12-31T19:48:35Z Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon 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 Hylocereus megalanthus Gibberellic acid (GA3) Potassium fertilization Fruit quality Synergistic interaction Ácido giberélico (GA3) Fertilización potásica Calidad del fruto Interacción sinérgica https://purl.org/pe-repo/ocde/ford#4.01.06 Pitahaya; Potasio; Potassium; Giberelina; Gibberellins; Rendimiento de cultivos; Crop yield; Abono compuesto; Compound fertilizers; Nutrición de la planta; Plant nutrition; Fruta tropical; Agricultura de precisión; Precision agricultura. 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. The author(s) declare financial support was received for the research and/or publication of this article. This research was supported by the National Institute of Agrarian Innovation (INIA), Peru, through the PROFRUT project (CUI N° 2532404). 2025-12-30T18:16:33Z 2025-12-30T18:16:33Z 2025-11-24 info:eu-repo/semantics/article Santos-Pelaez, J. C., Leiva-Espinoza, S. T., Espinoza-Núñez, E., Saravia-Navarro, D., Castillo-Torrejon, C. L., Cruz-Delgado, J. H. I., Klauer-Garcia, D. F., & Melgar, D. P. C. N. (2025). Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon. Frontiers in Agronomy, 7, 1677288. https://doi.org/10.3389/fagro.2025.1677288 2673-3218 http://hdl.handle.net/20.500.12955/2970 https://doi.org/10.3389/fagro.2025.1677288 eng urn:issn:2673-3218 Frontiers in Agronomy info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ application/pdf application/pdf Frontiers Media S.A. CH Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | Hylocereus megalanthus Gibberellic acid (GA3) Potassium fertilization Fruit quality Synergistic interaction Ácido giberélico (GA3) Fertilización potásica Calidad del fruto Interacción sinérgica https://purl.org/pe-repo/ocde/ford#4.01.06 Pitahaya; Potasio; Potassium; Giberelina; Gibberellins; Rendimiento de cultivos; Crop yield; Abono compuesto; Compound fertilizers; Nutrición de la planta; Plant nutrition; Fruta tropical; Agricultura de precisión; Precision agricultura. 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 Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon |
| title | Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon |
| title_full | Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon |
| title_fullStr | Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon |
| title_full_unstemmed | Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon |
| title_short | Synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya (Hylocereus megalanthus) fruits in the Peruvian Amazon |
| title_sort | synergistic effects of potassium and gibberellin on the yield and quality of yellow pitahaya hylocereus megalanthus fruits in the peruvian amazon |
| topic | Hylocereus megalanthus Gibberellic acid (GA3) Potassium fertilization Fruit quality Synergistic interaction Ácido giberélico (GA3) Fertilización potásica Calidad del fruto Interacción sinérgica https://purl.org/pe-repo/ocde/ford#4.01.06 Pitahaya; Potasio; Potassium; Giberelina; Gibberellins; Rendimiento de cultivos; Crop yield; Abono compuesto; Compound fertilizers; Nutrición de la planta; Plant nutrition; Fruta tropical; Agricultura de precisión; Precision agricultura. |
| url | http://hdl.handle.net/20.500.12955/2970 https://doi.org/10.3389/fagro.2025.1677288 |
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