PT  - JOURNAL ARTICLE
AU  - Dědič, P.
AU  - Ptáček, J.
AU  - Horáčková, V.
AU  - Matoušek, V.
AU  - Čeřovská, N.
AU  - Filigarová, M.
TI  - Potato virus S (PVS): puzzling virus for potato breeders and seed producers
DP  - 2002 Dec 31
TA  - Plant Protection Science
PG  - 648--651
VI  - 38
IP  - 11
AID - 10.17221/10581-PPS
IS  - 12122580
AB  - In the framework of PVS eradication from breeding materials of Czech potato cultivars, the systematic research was devoted to: susceptibility of cultivars, occurrence of PVS in imported and domestic materials, and to maintenance of virus-free basic grades potatoes on breeding stations. In the field-exposure trials was proved high level of susceptibility of most cultivars to PVS and by contraries, gradualy increased proportion of maintained virus-free cultivars of foreign, as well as domestic origin. Nevertheless severe infestation still persist in some of them. The contemporary situation with maintenance of virus-free basic material in CR was demonstrated.