Investigation on the race composition of downy mildew (Plasmopara halstedii Farl. Berlese et de Tony) in Bulgaria during 2007-2008
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چکیده
منابع مشابه
Anti-mildew Activity of Methanolic Extract from Selected Medicinal Plants against Plasmopara Halstedii (farl.) Berl. & De Toni Incitant of Sunflower Downy Mildew Disease
Methanolic extracts of eight medicinal plants were screened for their anti-mildew activity against Plasmopara halstedii, incitant of downy mildew of sunflower. Extracts of Morinda citrifolia, Zingiber officinale, and Tinospora cordifollia were found to be best in reducing the sporulation of P. halstedii in both the whole leaf and leaf disc method. Further; the phytochemical analysis of these ex...
متن کاملImpact of major gene resistance management for sunflower on fitness of Plasmopara halstedii \(downy mildew\) populations
1 Inra-UBP, UMR 1095, 234, avenue du Brézet, 63100 Clermont-Ferrand, France 2 Inra-CNRS, UMR 441, BP 52627, 31326 Castanet-Tolosan, France 3 Inra-UBP, UMR 1095, 24, avenue des Landais, 63177 Clermont-Ferrand, France 4 CETIOM, ENSAT, 18 Chemin de Borde-Rouge, BP 32607 31326 Auzeville-Tolosane France 5 Inra, UMR santé végétale (Inra-Enita), centre de recherches de Bordeaux, la Grande Ferrade, BP ...
متن کاملComponents of Quantitative Resistance to Downy Mildew (plasmopara Halstedii) in Sunflower (helianthus Annuus)
Components of quantitative resistance in sunflower (Helianthus annuus) to Plasmopara halstedii, the pathogen causing downy mildew, were investigated. Percentage infection, latent period, sporulation density and reduction of hypocotyl length were compared on two sunflower lines showing different levels of quantitative resistance in the field infected with different P. halstedii strains of races ...
متن کاملMolecular variability of sunflower downy mildew, Plasmopara halstedii, from different continents.
Downy mildew of sunflower (Helianthus annuus L.), caused by the pathogen Plasmopara halstedii, is a potentially devastating disease. Seventy-seven isolates of P. halstedii collected in twelve countries from four continents were investigated for RAPD polymorphism with 21 primers. The study led to a binary matrix, which was subjected to various complementary analyses. This is the first report on ...
متن کاملidentification of physiological races of plasmopara halstedii, the causal agent of sunflower downy mildew, in urmia
sunflower downy mildew, caused by plasmopara halstedii, is one of the most important diseases of this crop in west-azarbaijan, urmia. it causes economic yield losses during favorable environmental conditions. the pathogen is a polycyclic one, and it is likely that physiological changes occur in its population and subsequent appearance of new physiological races. hence, identification of the exi...
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ژورنال
عنوان ژورنال: Helia
سال: 2010
ISSN: 1018-1806
DOI: 10.2298/hel1052019s