... genotypes and that is why the major objective of this study was to develop sunflower hybrids geneticallyresistant to dominant races of downy mildew in Fundulea area. To prevent losses caused by downy mildew, ...
... Dobrogea and eastern Plain Baraganu. Inthe last 40 years, efforts to introduce genetic resistance to this parasite in sunflower hybrids were followed by theoccurence of new virulent races that promptly ...