EN
Investigations on population development of Pratylenchus neglectus in wheat cropping showed in case of some nematode populations, statistically important differences in effect among species, cultivars and forms of host plant. Triticium durum and Triticium aestivum cultivar Mewa were better host plants, in which mean Pf/Pi value reached 1.8 and 2.0 respectively. Under cropping of T. aestivum cultivar Narwa Pf/Pi was 1.6 and 1.4 in soil with T. spelta.