Wybrane zagadnienia z biologii grzyba Plasmodiophora brassicae Wor. [Some problems in the life-cycle of fungus Plasmodiophora brassicae, Wor.]
Nowicki, B.
The quickest loss of infectivity of Plasmodiophora brassicae Wor. resting spores was observed in acid soil. Jnlectivity was ratained longer in neutral and alkaline soils. The infection of cabbage seedlings took place in a broad pH range from 3.3 to 8.1, the optimum soil pH for infection being at 5.3 - 5.7. When the number of spores in the soil increased the infection took place in the infection took place in the broader pH range. The plants which were planted as seedlings in infested soil were infected in a broader pH range than plants which were grown from seeds in infested soil.
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