Vitamin C content in edible potato tubers in the conditions of using biostimulators

Abstract

In plant production that produces high-value products, biostimulants are gaining more and more importance. Research hypothesis; biostimulants can contribute to the change of vitamin C content in edible potato tubers. This hypothesis was verified in a three-year field experiment. The effect of four variants of the use of biostimulators: BrownBio Gold (auxin and cytokinin), GreenOk (humic substances), Kelpak SL (Ecklonia maxima), Titanit (titanium) in tubers of three potato cultivars on the content of vitamin C. The applied biostimulants had a significant impact on the content of vitamin C. The highest increase of this component was found in tubers harvested from the plots sprayed with BrownBio Gold. Vitamin C content under the influence of biostimulants was on average 205.0 mg·kg−1 of fresh weight. Hydrothermal conditions prevailing in the years of the research were the factor that significantly modified the content of the analysed component.

Keywords

• ascorbic acid
• solanum tuberosum l
• natural products
• cultivars