The international program wheat varieties (IWWPMP) resistance to the powdery mildew causing agent - Erysiphe graminis

Stojanovic, S. . Centar za strna zita; Stojanovic, J.; Jevtic, R.; Jerkovic, Z.

The international program wheat varieties (IWWPMP) resistance to the powdery mildew causing agent - Erysiphe graminis

1992

Stojanovic, S. (Institut za istrazivanja u poljoprivredi "Srbija", Kragujevac (Yugoslavia). Centar za strna zita) | Stojanovic, J. | Jevtic, R. | Jerkovic, Z.

Investigations have revealed that not all the varieties included in International Winter Wheat Powdery Mildew Program (IWWPMP) are resistant to powdery mildew. In the three years of investigations (1990-1992) at the two localities in Serbia (Yugoslavia), the number of resistant and susceptible varieties has been approximately the same. The different reactions of individual genotypes that varied from year to year and from one locality to another caused by specific ecological conditions and virulence of the parasite population have been established. Effectiveness of the individual Pm resistance genes was not satisfactory.

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