Volume 1, Issue 2 (9-2012)
Plant Pathol. Sci. 2012, 1(2): 46-52 |
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of Plant Pathology, Department of Plant Protection, Faculty of Agriculture, Yasouj University, Yasouj, Iran , Fghaderi2003@yahoo.com
Abstract: (18145 Views)
Root and crown rot is an important disease in Kohgiluyeh and Boyerahmad province peach orchards. Its signs are wilting, general weakness, loss of foliage and sometimes sudden wilt and death of the tree. To isolate the pathogen, used corn meal-agar with antibiotics, Delvasid, Ampicillin and rifampicin medium. Pathogen is Phytophthora cactorum. For pathogenesis test, 2 inoculation methods, to a tree branch or contaminated soil around the roots and crown of seedling is used. Inoculation roots and crowns of seedlings and saplings of six varieties of peaches with this pathogen, showed that Takheh is resistant, Alberta, Redhoon and Mashhad red peach are semi-resistant, Angiri and J.H.Hill are sensitive to the disease
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