Fungal infection of malt barley kernels in Slovak Republic

Tibor Roháčik and Kamil Hudec
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Tibor Roháčik: SELEKT, Research and Breeding Institute, Inc., Bučany, Slovak Republic
Kamil Hudec: Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Nitra, Slovak Republic

Plant Protection Science, 2007, vol. 43, issue 3, 86-95

Abstract: The influence of agro-environmental factors (year, cultivar and climatic factors) on the occurrence of fungi on kernels of malt barley, species spectrum and seedling viability were evaluated during 2004 and 2005. The seeds (asymptomatic, fraction above 2.5 mm) originated from different cultivars and locations of the Slovak Republic. Surface sterilisation of the kernels before isolation of the fungi was the key factor for objective results on the occurrence of Fusarium species. Screening of non-sterilised kernels gave a different spectrum of fungal species and their frequency and may lead to distorted results. The most frequent species isolated from barley kernels were Alternaria spp., Cochliobolus sativus, Epicoccum nigrum, Fusarium spp. and Pyrenophora teres. The results confirmed that agro-environmental factors (mostly year and microclimatic conditions) had a major influence on infection by and population structure of fungi in malt barley kernels. The total sample infection by Fusarium spp. was significantly higher at localities with higher altitude and in 2005. The infection level varied from 0% to 20%, in some localities in 2005 it exceeded 20%. The widest fungal species spectrum was recorded in the locations with high level of kernel infestation. In localities with lower infection, the species spectrum was narrower.

Keywords: malt barley; kernels; fungal infection; agro-environmental factors (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:43:y:2007:i:3:id:2249-pps

DOI: 10.17221/2249-PPS

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