The reaction of seeds of susceptible and high tolerant to phomopsis sunflower lines on fungus cultural filtrates influence

Seeds of susceptible sunflower line VK 462 and high tolerant line VK 680 to Phomopsis (Diaporthe) helianthi Munt-Cvetk., Michal., Petr. were soaked in cultural filtrates of 12 isolates on 24 hours. The energy of seeds germination of tolerant line was in 1.5-2.0 times higher than ones of susceptible line. The used isolates of pathogen were geographically distant, but filtrates all 156 of them have shown a substantial differences between lines on 95 % level of significance. The possibility of express-method development for sunflower germplasm test for resistance is discussed.