Infection of varietes of cherry and sweet cherry by Monilia Pers. against the natural and artifical infection background

Abstract

The article presents the results of the study of the infection of 8 varieties of cherries and 7 varieties of sweet cherry by monilial blight (Monilia laxa Ehr.) and fruit rot (Monilia fructigena Pers.) against the natural and artificial infection backgrounds. The field observations and artificial infection confirmed the fact of destruction of cherries by moniliales burn.

In natural conditions the variety of sweet cherry ‘Minchanka’ showed resistance to monilial blight; all the investigated varieties of cherries ‘Vyanok’, ‘Griot Belorussky’, ‘Dolgozdannaya’, ‘Novodvorskaya’, ‘North Star’, ‘Orlitza’, ‘Prevoskhodnaya Kolesnikovoi’, ‘Turgenevka’, and varieties of sweet cherry ‘Büttner’, ‘Gronkovaya’, ‘Minchanka’, ‘Severnaya’ showed resistance and to fruit rots.

Against the artificial infection background varieties of cherries resistant to monilial blight were not revealed. The slightly infected varieties were cherry ‘Griot Belorussky’ and sweet cherry varieties ‘Minchanka’, ‘Narodnaya’, ‘Severnaya’.

The varieties of cherries ‘Griot Belorussky’, ‘Novodvorskaya’, ‘Prevoskhodnaya Kolesnikovoi’, ‘Vyanok’ showed the resistance to fruit rot against the artificial infection background. Sweet cherry varieties that are resistant to fruit rot under the conditions of artificial infection background were not revealed. ‘Severnaya’ was damaged by infection slightly.

The differentiation between the cherry varieties in degree of damage by different forms of monilia evidenced the prospects of looking for resistant genotypes among the broader set of varieties.