Survey of Olive Fungal Disease in North of Iran.
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Date
2012-01
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Abstract
New plantations of Olive tree in northern Iran are usually being severely affected by wilt or
dieback and death. To determine the etiology of this problem, a study was carried out in
samples of affected young trees collected in Golestan, Zanjan, Gilan and Khorasan
provinces, the north of Iran during 2004-2009. Fungi that cause olive disease or associated
with stem cuttings are listed. From this list Verticillium dahliae and Fusicladium oleagineum
were the most common on a wide range area and on all cultivated cultivars. Several fungi
were isolated from seedling rotted roots and some recorded associated with stem cuttings.
Other fungal species associated with death of young olive trees in the field or in the
nurseries, including Botrytis cinerea, Colletotrichum acutatum, Colletotrichum
gloeosporioides, Fusarium solani, Macrophomina phaseolina, Neoscytalidium dimidiatum,
Phytophthora megasperma, Phytophthora nicotiana, Pythium aphanidermatum,
Rhizoctonia solani and some stem decay fungi such as species of Ascochyta, Alternaria,
Cephalosporium, Chaetomium, Cladosporium, Diplococcium, Diplodia, Nigrospora,
Sphaeropsis, Stemphyllium and Ulocladium. As the fungal pathogen can affect olive
production, these findings are potentially important to the future olive industry in northern
Iran.
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Keywords
Olive, drying syndrome, Verticillium, Iran, Golestan province
Citation
Sanei S J, Razavi S E. Survey of Olive Fungal Disease in North of Iran. Annual Review & Research in Biology. 2012 Jan-Mar; 2(1): 27-36.