DETECTING THE PRESEN CE OF DOWNY MILDEW A ND GENOTYPING SUNFLOWER HOST PLANTS IN THE SAME PCR REACTION

Downy mildew (DM) is one of the most important diseases of sunflower in North America (Gulya et al., 1997) and it has also been reported in all the sunflower growing regions except Australia (Roekel-Drevet et al., 2003). The causal agent is the obligate parasite Plasmopara halstedii (Farl). Berl. and de Toni. DM can affect sunflower plant