How Does Nutrition Influence the Quality of ‘Rojo Brillante’ Persimmon?

A recent study assessed the concentration of key macronutrients in different sections of the pulp of ‘Rojo Brillante’ persimmons grown under both organic and conventional practices, analyzing their relationship with the physicochemical parameters that define fruit quality at harvest. This information is crucial for fine-tuning nutritional requirements and optimizing the production of high-quality persimmons.

Methodology and Results

Three sampling points were conducted during the ripening process to evaluate concentrations of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) in the basal and apical parts of the pulp. The results indicated a higher accumulation of N, P, and K in the apical region compared to the basal region. Additionally, a translocation of Ca from the basal to the apical part was observed as ripening progressed. Mg concentrations, although similar between both regions, decreased as the fruit matured.

Comparative analyses showed that organically grown persimmons had lower levels of Ca and higher levels of N and P compared to conventionally managed ones, with no significant differences in K and Mg levels between the two cultivation methods.

Implications for Fruit Quality

The study revealed that Ca and Mg, as well as the N/Ca and Ca/(K+Mg) ratios, are closely linked to the quality of persimmon in terms of color, firmness, and soluble solids content (SSC). These findings emphasize the importance of balanced fertilization to ensure high-quality fruit, which is especially relevant in organic management. While it promotes sustainability, organic practices require optimization in calcium management.

Conclusions

This research provides a valuable framework for adjusting fertilization practices in ‘Rojo Brillante’ persimmon production, highlighting the need for careful macronutrient management to maximize fruit quality. These insights are essential for producers aiming to balance sustainability with excellence in fruit production.

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Source

Vilhena, N. Q., Moreno, A. P., Morales, J., Gil, R., Quiñones, A., & Salvador, A. (2024). Concentration and distribution of macronutrients in ‘Rojo Brillante’ persimmon fruit and their correlation with key quality attributes. Actual Poscosecha 2024, 30–37. ISSN 3020-9315. https://www.poscosecha.com/biblioteca/publicaciones/actual-poscosecha-2024