Enhancing Yield and Fruit Quality of Sweet Orange (Citrus Sinensis) in Response to Foliar Application of Amino Acids and Micronutrients | ||
| Assiut Journal of Agricultural Sciences | ||
| Volume 56, Issue 1, January 2025, Pages 199-212 PDF (448.53 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajas.2025.327396.1414 | ||
| Authors | ||
| Mokhtar M. Shaaban* 1; Lamees M.N. Abdel-Ati2 | ||
| 1Pomology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt. | ||
| 2Horticulture Research Institute, Agriculture Research Center, Giza, Egypt. | ||
| Abstract | ||
| Compared to other citrus cultivars, the sweet orange (Citrus sinensis) species provides the greatest quantity of fruit and is grown throughout the world. The current study's experiment was conducted during two consecutive seasons in 2019 and 2020 in the Experimental Orchard of the Faculty of Agriculture, Assiut University. The aim of the research study was to investigate how foliar application of micronutrients and amino acids influenced the sweet orange (Citrus sinensis) yield as well as quality. Sixteen uniform sweet orange trees (Balady cultivar), aged 25 years, were chosen, and they were arranged in a complete randomized block design with four treatments, one of which was control. The treatments included T1 (spraying 1000 mg/l of "Strong Amino Gold" amino acids), T2 (spraying 2000 mg/l of "Omega Mix" micronutrients), T3 (spraying a mixture of micronutrients and amino acids), and T4 control (spraying water only). Throughout the two seasons, the trees got four sprays from each treatment at the onset of new growth (mid-February), following fruit setting (first week of April), first week of July, and first week of September. Yield and fruit quality observations were conducted and recorded. The study showed that, over the course of the two studied seasons, the combined treatment (T3) outperformed the others, recording the highest yield weight, fruit weight, fruit length, diameter, juice weight, volume, rind weight, rind thickness, rags %, TSS%, total sugars %, reducing sugars %, non-reducing sugars %, and vitamin C with the lowest titratable acidity. | ||
| Keywords | ||
| Amino acids; Fruit quality; Micronutrients; Sweet orange; Yield | ||
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