Author(s): Maria Gonzales, Carlos Silva, Aisha Mohammed and Victor Okafor

Abstract: Papaya (Carica papaya) is a tropical fruit crop known for its economic and nutritional benefits. The fruit-set and yield of papaya can be influenced by various agronomic practices, including soil nutrient management. This research investigates the combined soil application of zinc (Zn) and boron (B) and its effects on the fruit-set and yield of Papaya cv. Red Lady under subtropical conditions. A field experiment was conducted in a subtropical region with varying levels of Zn and B application. The treatments included different combinations of Zn and B, applied as soil amendments. Fruit-set percentage, fruit size, fruit weight, and overall yield were measured as response parameters. The results showed significant improvements in fruit-set and yield when zinc and boron were applied in combination compared to the control. Specifically, combined Zn and B treatments exhibited better fruit development, increased fruit weight, and a higher overall yield per plant. The synergistic effect of Zn and B is hypothesized to enhance pollination efficiency and optimize physiological processes such as nutrient uptake, flower development, and fruit maturation. These findings support the potential use of combined zinc and boron soil applications to enhance the productivity of papaya under subtropical conditions. The research emphasizes the importance of micronutrient management for improving fruit-set and yield in subtropical papaya cultivation.

DOI: 10.22271/27889289.2025.v5.i2e.232

Pages: 368-371 | Views: 67 | Downloads: 26

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