Effect of foliar potassium spraying on productivity and quality of grape fruits (Vitis vinifera) under different irrigation levels | ||
| مجله علوم و صنایع غذایی ایران | ||
| Volume 22, Issue 168, November 1404, Pages 214-223 PDF (518.85 K) | ||
| Document Type: مروری سیستماتیک | ||
| DOI: 10.48311/fsct.2025.117610.82925 | ||
| Authors | ||
| Hussein M Shamran* 1; Wafaa N Radhi2; Marwa T Abbod3; Fouad R Al-Burki2 | ||
| 11Faculty of Pharmacy, Jabir Ibn Hayyan University of Medical and Pharmaceutical Sciences, Najaf, Iraq | ||
| 2Faculty of Pharmacy, Jabir Ibn Hayyan University of Medical and Pharmaceutical Sciences, Najaf, Iraq | ||
| 3Department of Biology, Faculty of Science, University of Kufa, Najaf, Iraq | ||
| Abstract | ||
| . Sustainable strategies to mitigate water stress and enhance fruit quality are therefore of immense industrial interest. This study investigated the efficacy of foliar potassium (K) application as a practical agricultural strategy to ameliorate the adverse effects of different irrigation levels on grape productivity and, more importantly, on key quality attributes relevant to the food processing industry. A field experiment was conducted using a factorial arrangement based on a Randomized Complete Block Design (RCBD). Grapevines were subjected to three irrigation levels (100%, 75%, and 50% of crop evapotranspiration - ETc) and three concentrations of foliar potassium (0, 1%, and 2% K2O). Parameters measured included yield, cluster weight, and a comprehensive set of quality traits: total soluble solids (TSS), titratable acidity (TA), pH, berry firmness, and the concentration of anthocyanins and total phenolics. Water deficit significantly reduced yield but enhanced most quality parameters. The 50% ETc treatment led to a notable increase in TSS, TSS/TA ratio, and anthocyanin content. Foliar potassium application, particularly at 2%, effectively mitigated yield losses under stress and synergistically improved quality. The interaction between 75% ETc and 2% K spray resulted in an optimal balance, achieving a yield comparable to full irrigation while significantly boosting TSS, phenolic content, and color intensity—attributes highly sought after for premium wine and juice production. The integrated management of deficit irrigation (75% ETc) and foliar potassium nutrition (2%) presents a viable and sustainable strategy for the grape industry. | ||
| Keywords | ||
| Water Stress; Potassium Fertilization; Fruit Quality; Bioactive Compounds; Food Processing; Sustainable Viticulture | ||
| References | ||
|
| ||
|
Statistics Article View: 86 PDF Download: 46 |
||
| Number of Journals | 45 |
| Number of Issues | 2,196 |
| Number of Articles | 24,878 |
| Article View | 28,796,731 |
| PDF Download | 18,605,461 |