Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 59, Issue 10, Pages 5498-5503Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf200226p
Keywords
garlic (Allium sativum L.); selenium; sulfur; macronutrients; total phenolics; pungency; ascorbic acid; antioxidant capacity
Funding
- Estonian Science Foundation [7515]
- [SF0170057s09]
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Foliar selenium (Se) treatment of garlic at concentrations of 10,50, and 100 mu g of Se/mL was carried out in open field conditions in 2008 and 2009 in Estonia. Bulb weight and yield structure, content of total Se, S, N, P, K, Ca, and Mg, ascorbic acid content (AAC), pungency, total phenolics, and total antioxidant capacity (TAC) were determined. The highest level of Se decreased total S, K, and Ca in both years; no negative impact on bulb weight was observed. In 2009 Se10 treatment had significantly more bulbs with the largest diameter compared to the other treatments. In 2008, the AAC was decreased by Se50 and the content of total phenolics by all Se treatments; however, TAC was increased. Foliar Se fertilization of garlic at rates of 10-50 mu g of Se/mL can be recommended to increase the number of large bulbs and increase bulb antioxidant capacity.
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