Trials for Improving the Productivity in Flame Seedless Grapevines by Using Some Amino Acids and Seaweed Extracts | ||
| Assiut Journal of Agricultural Sciences | ||
| Volume 56, Issue 3, July 2025, Pages 224-232 PDF (404.63 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajas.2025.367590.1471 | ||
| Authors | ||
| Alaa A.B. Masoud* 1; Mohamed A. M. Abada2; Omnia S. A. Sagheer1 | ||
| 1Pomology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt. | ||
| 2Horticulture Research Institute, Agriculture Research Center, Giza, Egypt. | ||
| Abstract | ||
| In 2023 and 2024 seasons, Flame seedless grapevines were applied with a total of three times amino acids (Tryptophan + Methionine + Cysteine) and/or seaweed extracts at a concentration of 0.05 to 0.2 percent. The aim of this research was to analyze the effect of single and combined amino acids and seaweed extracts at various concentrations on the yield and berries quality of Flame seedless grapevines in new reclaimed soils. Applying a combination of amino acids and/or seaweed extracts at the specified rates three times each significantly increased the yield, cluster characteristics, the percentage of berries coloration, and berries physical and chemical properties compared to the control treatment. The increase was more pronounced with higher application rates. The use of amino acids alone far exceeded the use of seaweed extracts for all parameters. Furthermore, combination treatments were exceptionally better than single treatments in all cases. The best yields, berry coloration percentage, and berry quality for the Flame seedless grapevines were obtained by applying a mixture of some amino acids (Tryptophane, Methionene, Cysteine) and seaweed extracts at 0.2% thrice on growth start, immediately after berry setting and a month later. | ||
| Keywords | ||
| Amino acids; Berries quality; Flame seedless; Seaweed extracts; Berry colouration % | ||
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