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Journal of Agricultural Science and Technology، جلد ۲۱، شماره ۶، صفحات ۱۵۰۷-۱۵۲۰
عنوان فارسی
چکیده فارسی مقاله
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عنوان انگلیسی Amino Acid Composition of White Grape Juices as Affected by Soil Urea Fertilization
چکیده انگلیسی مقاله The aim of this work was to test the effects of soil urea fertilization on yield, grape juice soluble solids, total acidity, and amino acid composition of Chardonnay, Welschriesling, and Riesling grape varieties. The experiment was conducted in a vineyard with repeated records of low yeast-assimilable-nitrogen content in must and the corresponding grape juices in years prior to the experiment. Urea was applied after completion of flowering. Treatments included the control without fertilization, 5.5, 16.8 and 28.1 g N vine-1. Urea fertilization generally increased yield components and amino acid concentrations. Fertilization with 28.1 g N vine-1 prolonged grape ripening, regarding soluble solids and total acidity values. Fertilization with 28.1 g N vine-1 was not so effective in improving amino acid concentration compared to other fertilization treatments. This leads to conclusion that fertilization with 28.1 g N vine-1 seems excessive and unnecessary regarding delayed fruit ripening and inconsistent effect on amino acid composition.  
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله | M. Karoglan
Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, Zagreb, Croatia.
University of Zagreb, Faculty of Agriculture

| L. Maslov Bandic
Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, Zagreb, Croatia.
University of Zagreb, Faculty of Agriculture

| M. Osrecak
Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, Zagreb, Croatia.
University of Zagreb, Faculty of Agrticulture

| M. Mihaljevic Zulj
Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, Zagreb, Croatia.
University of Zagreb, Faculty of Agriculture

| B. Kozina
Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, Zagreb, Croatia.
University of Zagreb, Faculty of Agriculture

| A. Jeromel
Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, Zagreb, Croatia.
University of Zagreb, Faculty of Agriculture

نشانی اینترنتی http://journals.modares.ac.ir/browse.php?a_code=A-23-20114-1&slc_lang=en&sid=23
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/476/article-476-2021718.pdf
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زبان مقاله منتشر شده en
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