Effect of Foliar Application with Some Nutrients and Antioxidants on Yield, Physical and Chemicals Properties of Muorcet Mandarin Cv. Fruits

Abstract

This study was carried out during two seasons in 2021 and 2022, on ten-year-old Muorcet Mandarin cv. (Citrus reticulata L.) trees were grafted on Volcamarina rootstock. The selected trees were grown in a private orchard located in Wadi Elmoulak, Ismailia Governorate, Egypt were studied in sandy soil with drip irrigation. The experiments were designed to investigate to evaluate the effects of foliar spray some nutrients and antioxidants (treatments) on yield, physical and chemical fruit quality of Muorcet Mandarin cv. Spraying was done till runoff (5 L / tree spraying) twice (late May and late July) in both seasons. Used randomized complete block design with three replicates. The results showed that significant between treatments for all studies characters. Most treatments significantly outperformed the control on fruit number per tree, fruit yield per tree (kg), fruit yield per feddan (ton) and chemicals fruit quality as well as with minor variations among treatments. Generally, this study demonstrates that foliar spraying with some nutrients and antioxidants, especially, vitamin B12 at 100 mg/l, ascorbic acid at 1000 mg/l and mixture of chelated (Fe, Zn and Mn) at 500 or 1000 mg/l treatments can enhance yield, physical fruit quality (for instance weight, volume, peel color, waste weight of fruit) and chemicals constituent (TSS %, total acidity %, TSS/acid ratio, vitamin C, total sugars and total phenols in fruits juice of Muorcet Mandarin cv.

Conclusion: Vitamin B12 at 100 mg/l, ascorbic acid at 1000 mg/l and mixture of chelated (Fe, Zn and Mn) at 500 or 1000 mg/l treatments can enhance yield, physical fruit quality and chemicals constituent of fruits juice of Muorcet Mandarin cv