Abstract
Relatively little is known about the role of Ni in plant nutrition, physiology and metabolism, especially in woody perennial species. Preliminary results in 2004 in 28 samples of various fruits of several regions of Greece, showed that in 10 samples Ni concentration was zero. The scope of this research was to make a first attempt to investigate whether the previous results was a result of Ni deficiency in the soils or an inability of certain species to absorb Ni from the soil. The research was carried out in two orchards with different soil Ni concentrations. In both orchards, the higher Ni concentration in apple fruits was measured for the cultivar Red Chief. However, leaf Ni concentration of the same cultivar wasn’t so high indicating that the translocation and redistribution of Ni to the fruits is a characteristic of this cultivar.
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