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Clubroot presents a serious threat to cultures of oilseed rape, especially if the share of this plant species in sowing structure is high. This is related to a long-lasting survival of pathogens resting spores in soil. The casual disease agent is Plasmodiophora brassicae Woronin - an obligatory, internal pathogen of Brassicae family which causes the formation of tumors on roots and hypocotyls. Plants...
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