Old-local samples of sour cherry as sources resistant to coccomyces blight and spur blight

Abstract

The study results of the basic economic and biological indexes of 24 forms of local cherry are given in the article.

11 sources of resistance to coccomyces blight and spur blight were revealed. Among them 5 forms characterized also by high winter hardiness such as Lyubanskaya - 1, Lyubanskaya - 2, Local cherry (Voropayevo), Local cherry (Markovo) and Cherry kruglyanskaya (Lepel‘), 5 forms differed by high productivity such as Nesvizhskaya, Local cherry (Ukraine), Lyubanskaya - 1, Local cherry (Rassvet) Nr. 2 and Cherry kruglyanskaya (Lepel‘) as well as 2 forms with large fruits such as Nesvizhskaya and Cherry aboriginal (Rassvet) Nr. 3 there were distinguished.

On a complex of economically valuable characteristics (high winter hardiness, disease resistance, productivity and fruits quality) the cherry cultivar Nesvizhskaya was revealed. That cultivar was passed to the State Variety Trial of Belarus in 2013. New cherry cultivar Nesvizhskaya is of medium ripening time. On a mazzard stock fructification starts on the 3rd year after planting in an orchard and such trees quickly increase crop. Blossom time is medium. The cultivar is autosterile. The best pollinizers are Vyanok and Milavitsa. The cultivar differs by high winter hardiness, coccomyces resistance, large fruits (average weight makes 5.3 g) of high taste and marketable qualities. A potential productivity makes 23.0 tons per hectare, i.e. 34.5 kg per tree and the average yield is 15.7 tons per hectare. The level of profitability of the cultivar cultivation makes 172.8 %.