Genetic Effects in Protecting Potatoes from Pests and Diseases for Some Potato Varieties (Solanum Tuberosum. L)

Abstract

Abstract A field experiment was conducted to study some genetic methods of some potato cultivars and their resistance to snake worms in the agricultural season 2018-2019 in one of the distinguished farms in the eastern province of Diyala-Mandali. At the same time, these genotypes had good production capacity and resistance to environmental conditions, including structures (1 and 2), at a rate of 12% compared to other varieties, where they were less susceptible to pathological infection such as structures (5 and 6) and at an infection rate of 15%, the study also showed that The dense vegetation cover has an important role in the viral effect on the tubers and the accumulation of infection due to the presence of favorable conditions for infection, as shown in Table No. (3) that the rate of (6.4%) is free of dense infestation and that more than half of the structures were more susceptible to the accumulation of viral mites and various infections in varying proportions And the percentage of sluggishness was from (18.9 to 18.0), and this is a simple statistical discrepancy if compared to the two seasons, with an average reached for both seasons, respectively (19.1 to 17.2), in both seasons. Both pathological and resistant cases were the two cultivars (Fuji and Burin) more susceptible to viral infection than others.