Study On Causal Agents Of Potato Tuber Rot In Store And Cold-Room Of Jiroft Region
2007
Azadvar, M., Agricultural Research Center of Jiroft and Kahnouj, Jiroft, Iran. | Najafinia, M., Agricultural Research Center of Jiroft and Kahnouj, Jiroft, Iran | Ershad, D., Dept. of Botany, Plant Pests and Disease Research Institute, Tehran, Iran
In Jiroft region, potato tubers keep in store and cold room in summer. During 2001- 2002, several stores were surveyed in order to etiological study of potato tuber that exhibited either soft or dry rot symptoms. Infected tubers washed with water and disinfested with 1% sodium hypochlorite and then plated on PDA, WA and CMA media. Also samples that showed soft rots cultured on NA, NAS and EMB bacteriological media. Pathogenicity tests carried out on health tubers of Primir cultivar by common plant pathological methods. At last, Cylindrocarpon didymum, Fusarium equiseti, Fusarium culmorum, Fusarium solani and Ralstonia solanacearum identified as causal agents of potato tuber rot in Jiroft with 56.4, 17.9, 12.8, 7.7 and 15.4 percent respectively.
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