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Sager, M; Spornberger, A.
(2015): Main and trace elements in fruit and leaves of apples grown on various rootstocks
MITT KLOSTERNEUBURG. 2015; 65(4): 250-275.

Abstract:: In 2012 and 2013 the effect of rootstocks M9, M26, M7, MM111, and seedling on the elemental composition of apple leaves and fruit of the variety xxxTopazxxx was investigated at the experimental site of the University of Natural Resources and Life Sciences (BOKU) in Grossjedlersdorf (Vienna, Austria). The soil of this site is weakly alkaline, rich in Ca and Mg, but poor in K, and the site is organically managed. Up to 41 elements were determined by ICP-OES and ICP-MS after two digestion procedures. Co and Mo concentrations in fruit and leaves as well as Cs and Rb to a lower extent, were affected by the vigour of the rootstocks, in case of Si in the leaves only. Presumably because of different weather conditions, fruit from the second year contained less B, Cu and Na, as well as more Al, Fe, Cr and Mn. Only the leaves, but not the fruit, which were grown on M26, contained more Mn and Co but less Si, and leaves but not fruit grown on M7 contained more P and Cu. Both leaves and fruits grown on seedling tended towards more K. Alkaline earths, rare earths, Al, B, S and many trace elements did not show differences in their element contents in leaves and fruit among the rootstocks investigated. The ratio of elements in fruit and corresponding leaves was smallest for B, Sr, and Ca, and largest for Rb, Na, and B. It did not depend on total nitrogen in the leaves. This investigation also shows that uncritical conclusions from leave analysis data towards fruit composition are not reliable for each element, but specific deviations appear.
Authors BOKU Wien:: Spornberger Andreas
Find related publications in this database (Keywords): element contents; apple; leavf; rootstocks; year-to-year variation; rubidium; caesium; molybdenum; cobalt; boron; silicon