The aim of the study was to determine the content of organic
acids in eight pumpkin cultivars: Ambar, Bambino, and Uchiki Kuri
belonging toCucurbita maximaspecies, theCucurbita pepospecies
was represented by Danka, JetF1, Makaronowa Warszawska (spaghetti type) and Miranda (hulles Styrian type), and Butternut cultivar of C. moschata species. All the pumpkin cultivars were
grown in the Research-Experimental Station at Psary, belonging
to Wroclaw University of Environmental and Life Sciences. Soil under the cultivation was fertilised with nitrogen in the form of
ammonium nitrate at 160 kgN/ha. The experiment was set in the
random block design in four replications. The area of one block
was 9 m
2, the planting was 1 m 1.5 m. Four-week seedlings were
planted in the third week of May and harvested in the second decade of September 2011. Fully ripened fruits were chosen for chemical analysis, five fruits from each replication. The investigation
was carried out in the laboratory of Fruit and Vegetable Technology
of Wroclaw University of Environmental and Life Sciences in September and December of 2011. Pumpkin fruit was kept in cold
store at 10C