Assessment of adaptability and fruit quality in new apple cultivars for intensive orchards

Background . Competitive early-fruiting apple cultivars with high commercial and consumer qualities, resistant to unfavorable stressors, are required for successful horticulture development. Materials methods The study included developed by innovative using scab resistance donors ( Rvi6 ) diploid gamete donors. Foreign commercialized in the region were also used. Conventional variety testing techniques applied. Fifteen released Institute of Fruit Crop Breeding (VNIISPK), 6 foreign cultivars, one reference (‘Antonovka obyknovennaya’) assessed. Results Simulating damaging factors helped identify good tissues buds domestically bred early winter frosts. These survived a temperature decrease –30°C without damage significant (no more than 2.0 pts) at –40°C midwinter, including scab-immune ‘Ivanovskoye’ ‘Pamyat Hitrovo’, immune triploids (3×) ‘Aleksandr Boyko’, ‘Akademik Saveliev’ ‘Vavilovskoye’. Bud ‘Gala’ ‘Ligol’ was stronger (2.5 increased 3.0 pts under simulated temperatures down –38°C –40°C. showed lowest midwinter. Early-fruiting cvs. ‘Blagodat’, ‘Ivanovskoye’, Hitrovo’ ‘Rozhdestvenskoye’ identified. On average, ‘Blagodat’ ‘Patriot’, ‘Afrodita’, ‘Start’, triploid significantly exceeded ‘Antonovka’ other yield. Conclusion. new VNIISPK matched marketability while adaptability they most them. Saveliev’, ‘Vavilovskoye’, ‘Prazdnichnoye’ recommended intensive-type orchards.