Genetic sources of resistance to clubroot of crucifers (Plasmodiophora brassicae Wor.) at selecting Pekin cabbage

摘要

In progenies of F_1, F_2 and back-crosses from crossing Pekin cabbage with turnip lines (Brassica campestris, var. rapa (L.) Thell.) from European system of differentiators (ESD) specific features in inheritance of resistance to clubroot of crucifers (Plasmodiophora brassicae Wor.) have been studeid. In has been shown that m turnip lines ESD 01, ESD 02 and ESD 03 the inheritance is controlled by two, and in line ESD 04 -- by three polymeric dominant genes which function by the principle of non-cumulative polymery. These turnip lines are not affected by clubroot isolates from Tatar Republic, Moscow and Permsky regions and can be used as genetic sources of resistance in selection of Pekin cabbage.