EVALUATION OF VITAMIN C CONTENT IN SAMPLES FROM TEN POTATO CULTIVARS INOCULATED WITH POTATO VIRUS Y (Necrotic strains)

Published in Scientific Papers. Series A. Agronomy, Vol. LX
Written by Carmen Liliana BĂDĂRĂU , Andreea TICAN , Maria ȘTEFAN , Nicoleta CHIRU

Providing basic nutrition to many people, being a staple food, potato tubers with higher levels of bioactive compounds (as vitamin C) could have a positive impact on the people health. This study aimed to evaluate the behaviour of 10 potato varieties with different L ascorbic acid content after inoculation with potato virus Y necrotic strains (PVYN ). Another goal of this research work was to elucidate the biochemical basis responsible for different reaction to infection with potato virus Y among several varieties which differ in their susceptibility or resistance to this pathogen. The potato cultivars evaluated were: Christian, Roclas, Red Lady, Marvis, Castrum, Brasovia, Hermes, Sante, Riviera and Carrera. The vitamin C content was estimated in the flesh matter only, using an enzymatic method. Significant differences in total ascorbic acid content were observed across the varieties before and after virus inoculation, the variety Hermes showing the highest content (746 mg.kg-1 DW) in tubers after inoculation. Excepting the cultivars Christian, Riviera and Sante, which were very resistant and resistant to mechanical inoculation, all the other samples tested presented 48.6 - 100% infected plants.

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BĂDĂRĂU C.L., TICAN A. , ȘTEFAN M., CHIRU N. 2017, EVALUATION OF VITAMIN C CONTENT IN SAMPLES FROM TEN POTATO CULTIVARS INOCULATED WITH POTATO VIRUS Y (Necrotic strains). Scientific Papers. Series A. Agronomy, Vol. LX, ISSN 2285-5785, 197-202.


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