The effect of nitrogen and sulfur applications on pyruvic acid content of onion (Allium cepa L.)

The aim of this study was to determine the effect of nitrogen and sulfur applications on pyruvic acid content of onion, an important quality criterion.
The study was performed in Atatürk Central Horticultural Research Institute between 2012 and 2013. The fertilizers were applied in combination of N and S having different ratios of the N-S combinations as 0, 50, 100 and 200 kg N ha^‑1 and 0, 25, 50 and 100 kg S ha^‑1. The effects of applications on pyruvic acid content were determined.
First year, the pyruvic acid contents were between 10.88 and 13.59 µmoles mL^‑1. The lowest pyruvic acid content was observed on N₂₀S₂₅, whereas the largest content was on N₀S₂₅ combinations.
The pyruvic acid contents of the second yearRSQUOs bulbs were higher than first year, with 11.69-14.60 µmoles mL^‑1 and N₂₀₀S₀ and N₀S₀ combinations respectively.
The effect of nitrogen and sulfur fertilizers on pyruvic acid content of onion was found to be statistically insignificant in both years.

XXX International Horticultural Congress IHC2018: II International Symposium on Root and Tuber Crops: Value Added Crops for the Next Generation

B. Albayrak, Ö. Lütfü Elmaci

onion, nitrogen, sulfur, pyruvic acid

https://doi.org/10.17660/ActaHortic.2019.1251.17