Vitamin C Content in Potato Tubers as Influenced by Insecticide Application
Marek Gugała, Krystyna Zarzecka
More details
Hide details
Department of Plant Cultivation, Faculty of Life Sciences,
University of Natural Sciences and Humanities in Siedlce, Prusa 14, 08-110 Siedlce, Poland
Pol. J. Environ. Stud. 2012;21(4):1101–1105
The objective of this study has been to determine vitamin C content in tubers of edible potato following an application of systemic insecticides to control the Colorado potato beetle.
A field experiment was conducted on soil of a good rye complex in 2004-06. The experiment was designed as randomized sub-blocks with three replications. Experimental factors included three cultivars of potato – Wiking, Mors, Żagiel – and six Colorado potato beetle control treatments using the following insecticides: Actara 25 WG (thiametoksam) at the rate of 0.08 kg/ha, Regent 200 SC (fipronil) at the rate of 0.1 dm3/ha, Calypso 480 SC (thiacloprid) at three rates (0.05, 0.075, 0.1 dm3/ha), and a control treatment without chemical protection. The content of vitamin C was dependant on cultivar, insecticide treatment, and environmental conditions with each year. The insecticides applied significantly increased vitamin C content (amounted to 1.7 mg/kg) compared with the tubers harvested from the control treatment where no chemical protection was applied. Tubers of Mors cultivar had the highest vitamin C content, and Wiking cultivar lowest.