The level of virus resistance of potato cultivars from the Polish National List in 2003
Jadwiga Pietrak
j.pietrak@ihar.edu.plInstytut Hodowli i Aklimatyzacji Roślin, Oddział w Młochowie (Poland)
Abstract
The resistance to viruses of potato cultivars from the Polish National List for 2003 was analyzed. The Polish National List for 2003 contains 117 original potato cultivars: 83 from domestic breeding and 34 from abroad. The mean resistance to PVY of 83 Polish potato cultivars is high (7.5) when compared to that of 34 foreign ones, which are 2.1 grades lower. The level of resistance to PLRV of the Polish and the foreign cultivars is similar. The PVM resistance of the recently registered Polish cultivars is one degree higher in relation to the foreign ones.
Keywords:
potato cultivars, resistance, potato virusesReferences
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Authors
Jadwiga Pietrakj.pietrak@ihar.edu.pl
Instytut Hodowli i Aklimatyzacji Roślin, Oddział w Młochowie Poland
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