Analysis of purple passion fruit (Passiflora edulis Sims) growth under ecological conditions of the Colombian lower montane rain forest
High-Andean fruits are considered important for their do-mestic consumption and exportation potential. Among them, purple passion fruit (Passiflora edulis Sims) is largely accepted in European markets. However, its short shelf life, worsened with the limited knowledge of the species lead to rapid fr...
- Autores:
-
Franco, Germán
Cartagena, José R.
Correa, Guillermo
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2014
- Institución:
- Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
- Repositorio:
- Repositorio Institucional UDCA
- Idioma:
- eng
- OAI Identifier:
- oai:repository.udca.edu.co:11158/1918
- Acceso en línea:
- https://revistas.udca.edu.co/index.php/ruadc/article/view/242
- Palabra clave:
- Growth dynamics
Fruit development
Tropical fruits
Passifloraceae
Passiflora edulis
Cultivo
Agronomía
- Rights
- openAccess
- License
- Derechos Reservados - Universidad de Ciencias Aplicadas y Ambientales
| Summary: | High-Andean fruits are considered important for their do-mestic consumption and exportation potential. Among them, purple passion fruit (Passiflora edulis Sims) is largely accepted in European markets. However, its short shelf life, worsened with the limited knowledge of the species lead to rapid fruit deterioration. An important contribution to the de-velopment of this crop is fruit growth mathematical mod-eling, which allows estimating harvest related issues, in or-der to define applicable agronomic management protocols. Periodic destructive sampling was employed to investigate fruits of known age corresponding to ten purple passion fruit materials from the Colombian departments of Antioquia, Pu-tumayo and Nariño. The fruits were analyzed for dry weight, polar and equatorial diameters, thermal time (TT) and rela-tive growth rate (RGR). In order to assess fruit growth, some nonlinear models were fitted using time after flowering (DAF) to predict dry weight and polar and equatorial diameters. For each response, the best fitting model was chosen according to homogeneous distribution of residuals, higher coefficient of determination for prediction (R2prediction), and smaller Mean Square Error and PRESS values. RGR was used to identify and describe fruit growth stages, while the TT was employed as a complementary measure to compare fruit ripening stag-es. The studied parameters were satisfactorily explained by Weber’s Monomolecular model. Based on the models ad-justed for fruit growth, it can be concluded that harvest must be carried out between days 85 - 90 after full bloom. |
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