RESPONSE OF SEVERAL APPLE VARIETIES TO APPLE SCAB (VENTURIA INAEQUALIS) ATTACK IN CENTRAL TRANSYLVANIA CONDITIONS
2003, 4 (4) p. 355-362
Abstract
Among 75 varieties of apple, verified at the Fruit Research Station in Cluj-Napoca, Central Transylvania, Romania, during seven years (between 1990-1996), 38 registered with certain attack degree with apple scab on leaves and fruits. Susceptible on apple scab – Venturia inaequalis (Cke.) Wint. – were the varieties with Japanese origin (i.e. Fuji Aki-fu, Nebuta, Sekai ichi), and in certain years even well known cultivars, as Kaltherer Böhmer, Starkrimson, Red Delicious, Mutzu, Wellspur, Jersey Mac which were strongly infected, especially on leaves. Out of all varieties, 31 of them, representing 41.3% were registered with “No attack”, both on leaves and fruits, including genetically resistant varieties Prima, Priscilla, Sir Prize, Liberty, Florina, Priam, Pionier, Voinea, Generos.
Keywords
apple, varieties, response, attack
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