FOR THE STUDY OF WINTER HARDINESS OF PLUM VARIETIES IN THE SUBURB OF IRKUTSK. MESSAGE 2
The article presents the data on inventory for winter-spring damage of plum trees in the suburb of Irkutsk Studies of winter hardiness of plum varieties was carried out in the period from 2014 to 2016, Noted the freezing of the bark of annual shoots, branches, and cambium, varieties of plums, which were estimated in points. As a result of researches it is established that all varieties of plums from the groups of medium and late maturing winter-hardy belong to; from the group of early ripening sredneaziatskom is the sort of “Khabarovsk early”. Of the 14 investigated cultivars the most winter-hardy variety is “Drooping”. In general, the ripening of the main groups of plums with their hardiness.