GrainGenes Reference Report: JPY-111-566
Reference
JPY-111-566
Title
Investigation on the efficiency of dichloroisonicotinic acid (DCINA) against a German isolate of BYDV-PAV in barley ( Hordeum vulgare L.)
Journal
Zeitschrift Fur Pflanzenkrankheiten Und Pflanzenschutz
Year
2004
Volume
111
Pages
566-571
Author
Weiskorn C Kramer M Huth W Friedt W Ordon F
Abstract
Besides genetically determined tolerance, induced resistance (IR) - which is strengthening a plant's natural potential of defence in general - can be considered as an environmentally friendly approach to prevent high yield losses in barley caused by Barley yellow dwarf virus (BYDV). In order to get information on the effectiveness of chemically induced resistance (cIR) against BYDV-PAV and the genotypic influence on the expression of cIR, 76 DH lines of the cross 'Post' x 'Vixen ( Ryd2 )' were analyzed in three variants (healthy control, BYDV-infected, DCINA treated+BYDV-infected) in repeated field and pot experiments for changes in grain yield. Furthermore, the virus titre was estimated by DAS-ELISA. Concerning the virus titre, effects of genotype, DCINA treatment and interaction turned out to be significant, but no correlation between the reduction of the virus titre due to DCINA and the relative grain yield was found in field and pot experiments. Therefore, these results give hint that, although the BYDV titre is on average reduced by DONA, the use of cIR in the pathosystem BYDV - barley seems to be of limited value, because no significant reduction of yield losses could be found
Keyword
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: JPY-111-566
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||