Methods of evaluating tomato susceptibility to late blight (Phytophthora infestans (Mont.) de Bary) under field conditions

Elżbieta Horodecka

Abstract


The purpose of the investigations carried out in 1983-1985 was to assess the usefulness of natural and artificial infections under field conditions for evaluating tomato resistance to late blight in Poland. It was found, that the degree of natural infection by this fungus was a better indicator of tomato resistance than the degree of artificial infection obtained under field conditions.

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