Effect of location, variety, colour of flesh and way of cultivation on the content of ascorbic acid in potato tubers
2010
Hamouz, K.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju | Lachman, J.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju | Hejtmankova, K.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju | Dvorak, P.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju | Cepl, J.,Vyzkumny Ustav Bramborarsky, Havlickuv Brod (Czech Republic)
Three field trials with different potato varieties were carried out in the Czech Republic from 2004 to 2009 in order to evaluate the effect of location (4 different localities studied), variety and colour of flesh (yellow, purple and red), and way of cultivation (organic and conventional) on the concentration of ascorbic acid (AA) in potato tubers. AA conc. was slightly higher on the location with the lowest altitude and the warmest climate (average AA conc. 185.69 mg/kg FM) than in the other locations (decrease of AA conc. by 4.1-8.3%). The effect was not significant. AA conc. in tubers was affected by the genotype of the variety; the difference in AA conc. between the varieties Marabel (247.59 mg/kg FM) with the highest level and Saturna (142.20 mg/kg FM) with the lowest level was 42.6%. Varieties with purple and red pulp (169.8 to 232.8 mg/kg FM) reached in 2009 comparatively the same AA level as the yellow-fleshed variety Agria (233.0 mg/kg FM). A tendency toward lower AA conc. was observed in tubers from organic farming in comparison with those from conventional farming.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Library of Antonin Svehla