AUTOCHTONOUS CULTIVARS OF APPLE FROM THE AREA OF THE UPPER POLIMLJE

Results of monitoring phenological characteristics of 12 autochthonous apple cultivars were summarized during the years. Morphological fruit and branch characteristics were described and chemical characteristics were analysed (content of dry substance, content of sugar and total acid). In 4 autochthonous cultivars, resistance to low temperatures was evaluated based on: a) content of macronutrients (N, P and K) and their relation in one-year-old branches and b) dynamics and content of total anthocyanins in the bark of one-year-old branches during the winter dormancy. Resistance to drought was analysed according to the capacity of leaves to retain water.