Evaluation of resistance of cultivars and some clones of potato against potato golden cyst nematode Globodera rostochiensis

Potato, as one of the strategic crops, plays an important role in the economy of the country. The potato golden cyst nematode (Globodera rostochiensis), was reported from Hamedan province in 2007. In present study, the reaction of 19 commercial potato cultivars and 23 advanced potato clones together with resistant and susceptible cultivars were evaluated against potato golden cyst nematode Globodera rostochiensis in greenhouse and field conditions. As the result, the cultivars Savalan, Jili, Sagita, Panamera and the clones 5/25, 870787, 1/27, 870861, 13/75, 1 were evaluated as susceptible. The cultivars Anosha, Banba, Kolomba, Kaiser, Fabula and clones 24/24, 19/75, 8701125, 11 and KSG613 were evaluated as resistant which could be introduced as the new resistant cultivars. The cultivars Khavaran, Boren and the clone 8708133 were evaluated as tolerant. The cultivars Challenger, Georgia and Taurus (commonly cultivated in Iran) were evaluated as susceptible. Besides the phenotypic evaluations, the molecular approches were also employed to amplify two TG689 and 57R markers linked to the H1 resistance gene in studied cultivars and clones.