Evaluation of promising cucumber lines of the parthenocarpic type for resistance to false powdery mildew in open ground conditions of the Moscow region

Relevance. False powdery mildew (peronosporosis) (the causative agent is Pseudoperonospora cubensis (Berk. et Curt.) Rostow.) - the most harmful disease on cucumber in the open ground, spring film and winter greenhouses in the autumn crop turnover. In the laboratory of breeding and seed production of pumpkin crops of All-Russian Research Institute of Vegetable Breeding and Seed Production, currently FSBSI FSVC, continuous work is underway to create varieties and hybrids of cucumber resistant to this disease. To create new competitive hybrids of cucumber of the parthenocarpic type, a lot of work was done on the selection of parental forms that differ in a complex of economically useful signs, including tolerance to false powdery mildew.