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Susceptibility of various potato cultivars to Clavibacter michiganensis subsp. sepedonicus infection was estimated in field experiments in Bydgoszcz in 2008–2009. Ten tubers of each of several potato cultivars were inoculated with suspension of Cms BPR IOR 527 at concentration about 108 cfu/ml. Differences among the cultivars in the incidence of foliar and tuber ring rot symptoms and of latent infection...
The influence of tomato growing in mulch of rye, rye with vetch, rye with vetch plus crimson clover and in mulch of rape on contents of nitrate, phosphorus, potassium, magnesium and calcium in their leaves was investigated. Damage caused by Phytophthora infestans on tomato leaves was significantly smaller on plants growing on plots with cover crops mulch than on plants from plots with bare soil. Significant...
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