engleski

Mineral Composition of Kale Genotypes Grown in Three Soils

The leafy kales are known as valuable source of different minerals. The objective of this study was to determine the effect of 2 kale genotypes cultivation in three phosphorus deficient soils common for coastal Croatia on mineral composition of shoots and roots. The study was conducted in a greenhouse located in Split, Croatia during winter 2012. Plants of two kale genotypes, ‘Red Russian’ and Croatian accession ‘Pula’ were planted in pots filled with three soils: Rhodic cambisol – terra rossa, Rendzic leptosol and Fluvisols Eutric Calcaric. The design was a randomized complete block with four replications. Shoot and root samples were analyzed using inductively coupled plasma – optical emission spectrometry for Ca, Mg, Mn, Zn, Fe, Cu and Mo concentrations. In the shoots, concentrations of all minerals were significantly affected by cultivation in different soil. Also, genotypes differed in Ca, Mg, Mn and Zn concentrations, while interactive effect soil type×genotype were noted for Mn, Zn and Cu. In the roots, all minerals significantly varied depending on soil type, while genotypes differed in Ca, Mg, Zn and Mo. The interaction genotypes×soil type was significant for Ca, Mg and Mo concentrations in roots. Mineral composition of kale tissues can be result of different chemo-physical soil characteristics, as also genetic variability in nutrient uptake and translocation.

P deficient soils, macronutrients, micronutrients, plant tissues

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