Macro and microelement in the fruits of some Sorbus species
1994
Sokolova, S.M. | Petrova, I.P.
Mature fruits of 10 species and 3 hybrids of the genus Sorbus were analyzed for Fe, K, Ca, Mn, Zn, Cu and Cr. Six species included in these studies are native to East Asia (Sorbus amurensis Kochne, S. cashmiriana Hedl., S. discolor Maxim., S. koehneana Schneid., S. microphylla Wenzig., S. sambucifolia Roem.); three species are native to Europe and Mediterranean region (S. colchica Zinserl., S. sudetica (Tausch.) Titsch., S. umbellata var. orbiculata Jabs). The plants under study were cultivated under equal identical conditions in the Arboretum of the Main Botanical Garden Russian Aacademy of Sciences (Moscow). The fruits were analysed for minerals by atomic absorption spectrophotometry (Hitachi). The analysis showed that Mn content was much higher in the species native to the North America and East Asia compared to the species from Europe and the Mediterranean region; Zn content was considerably higher in the species from Europe and Mediterranian region; Cu content was equal in all the species. Spontaneous hybrid x Sorbocotoneaster pozdnjakovii contained much more of Mn, Zn and Cu. The fruits of North-American and East Asian species exceeded the European-Mediterranean species in the macroelement content (Fe, K, Ca). Mg contents was higher in the fruits of North-American and European-Mediterranean origin. Macroelement and microelement contents in the fruits are different depending on the species identity
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