Valuable local apple cultivars and forms of genus Malus in the region of Apriltsi

Abstract

The local plant resources of Malus genus were studied in the region of Apriltsi. A great variety was found and were selected valuable apple cultivar and forms. The growth vigour of trees was defined. Biometric measurements of fruits were made. Due to growing of fruits on a seedling root-stock, they had a great growth vigour and they reached significant sizes. Weight of fruits varied from 39 to 190 g. Sadovska Perusha had the largest fruits - 190 g, Baba Katarina - 175 g, form MA 6 - 165 g. The susceptibility to fungal diseases - apple scab (Venturia inaequvalis) and powdery mildew (Podosphera leocotricha) was accounted. Most of the studied forms, such as Stefanka, Baba Katarina, Sadovska Perusha, Bozhechka, Form MA 6, are slightly suspetible to studied diseases, which determined them as appropriate for biological fruit production. From the conducted study on the basis of obtained results, as the most perspective were selected the local cultivars Sadovska Perusha, Baba Katarina, Bozhechka, Stefanka and forms MA 6, TSM and MT