title: Comparison of major and trace element concentrations in Danish greenhouse tomatoes (Lycopersicon esculentum Cv. Aromata F1) cultivated in different substrates.
abstract: The concentration of major and trace elements was determined for tomato (Lycopersicon esculentumcv. Aromata F1) fruits grown in three different substrate systems. The systems were soil and rockwool irrigated with a normal nutrient solution and rockwool irrigated with a nutrient solution with elevated electrical conductivity (EC). At three harvest times, tomato fruits were analyzed for Ca, Cu, Fe, K, Mg, Mn, Na, P, S, Sr, and Zn by ICP-AES and for Cd, Cr, Mo, Ni, Pb, Sn, and V by HR-ICPMS. The concentrations of Ca, Cd, Fe, Mn, Mo, Na, Ni, Sr, and Zn were significantly different (p < 0.05) for tomato fruits grown on the different substrates. Between the harvest times different levels (p < 0.05) were shown for Ca, Cd, Fe, Mn Na, Ni, Sr, Zn Cu, K, Mg, P, Sn, and V. The concentration of Cd was >15 times higher and the concentration of Ca was 50-115% higher in soil-grown fruits than in rockwool-grown fruits. Principal component analysis applied on each harvest split the data into two groups. One group includes soil-grown fruits, and the other group includes rockwool-grown fruits with the two different nutrient solutions.
authors.affiliation: Plant Biology and Biogeochemistry Department, Risø National Laboratory, PBK-124, P.O. Box 49, DK-4000 Roskilde, Denmark. vagn.gunderson@risoe.dk
authors.forename: V
authors.initials: V
authors.lastname: Gundersen
authors.forename: D
authors.initials: D
authors.lastname: McCall
authors.forename: I E
authors.initials: IE
authors.lastname: Bechmann
mesh_terms: D018551:Solanum lycopersicum / Q000737:chemistry*; D008903:Minerals / Q000032:analysis*; D013379:Substrate Specificity; D014131:Trace Elements / Q000032:analysis*
chemical_list: D008903:Minerals; D014131:Trace Elements