Diversity of black scurf symptoms caused by Rhizoctonia solani on potato tubers depending on cultivar and meteorological conditions
Jerzy Osowski
j.osowski@ihar.edu.plInstytut Hodowli i Aklimatyzacji Roślin — PIB, Radzików, Zakład Nasiennictwa i Ochrony Ziemniaka w Boninie (Poland)
Abstract
The impact of meteorological conditions on the level of black scurf was examined for 29 selected potato varieties, coming from three groups of earliness: 1 — very early and early; 2 — medium early and 3 — medium late and late. Field experiments were conducted during growing seasons between 2011–2013 in Bonin (IHAR — PIB, Department of Potato Protection and Seed Sciences).A great diversity of black scurf infection level was observed between the groups of earliness for tested cultivars. The lowest infection level for each earliness group occurred in 2011 (very early and early 3.6%, on average, medium early — 15.5%, medium late and late — 5.9%).
Keywords:
black scurf, Rhizoctonia solani, potato, meteorological conditionsReferences
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Authors
Jerzy Osowskij.osowski@ihar.edu.pl
Instytut Hodowli i Aklimatyzacji Roślin — PIB, Radzików, Zakład Nasiennictwa i Ochrony Ziemniaka w Boninie Poland
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