ETIOLOGICAL STUDY AND DISPERSION APPOINTMENT OF ANTHRACNOSE DISEASE AGENT OF CITRUS IN MAZANDARAN PROVINCE

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BABRI M.; JAVAN NIKKHAH M.; TAHERI H.; ALIAN Y.M.; FATTAHI MOGHADAM J.

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Journal: IRANIAN JOURNAL OF PLANT PATHOLOGY Year:2008 | Volume:44 | Issue:1 (173) Page(s): 37-53

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Title

ETIOLOGICAL STUDY AND DISPERSION APPOINTMENT OF ANTHRACNOSE DISEASE AGENT OF CITRUS IN MAZANDARAN PROVINCE

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Keywords

CITRUSQ3

ANTHRACNOSEQ2

COLLETOTRICHUM GLOEOSPORIOIDESQ3

GLOMERELLA CINGULATEQ3

Abstract

In recent years, ANTHRACNOSE disease of CITRUS trees in Mazandaran province causes heavy loss in some CITRUS commercial varieties. The disease has spread out in the CITRUS orchards of this Province. In order to isolate and identify the causal agent(s) of the disease, infected areas and susceptible of important and introduced CITRUS varieties in north of Iran, sampling was done from infected orchards at random during 2004-2005. In laboratory, disease samples tested were cultured on PDA medium. Of 119 samples, 96 Colletotrichum isolates were recovered. Based on morphological and some physiological characters and optimal temperature, all isolates were identified as C. gloeosporioides. The sexual stage were identified as Glomerella cingulata. Among the isolates, only one isolate produced perithecium in YPSS medium. Pathogenicity tests were conducted with some isolates of C. gloeosporioides in laboratory and greenhouse. The pathogenicity of these isolates were different they produced on the branches loxon and on the fruites brown rots. In laboratory, detached branches were inoculated by a disc of PDA culture containing mycelia of the fungus, leaves and fruits were sprayed with spore suspension of fungi. In greenhouse, leaves and branches of two-year old seedlings were inoculated as above. The rate of infection of CITRUS trees in Mazandaran province to ANTHRACNOSE was about 23-74 % (49% average). The effect of various temperatures on radial growth of the isolates was different. It can be as a specific character of isolates. The rates of temperature for growth were 5-10oC (minimum), 25-27oC (optimum) and 35-37oC (maximum) on PDA medium in dark condition. Overwintering studies indicate that the fungus persists at least for one year by hypha and acervulus in infected plant residues.

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APA: Copy

BABRI, M., JAVAN NIKKHAH, M., TAHERI, H., ALIAN, Y.M., & FATTAHI MOGHADAM, J.. (2008). ETIOLOGICAL STUDY AND DISPERSION APPOINTMENT OF ANTHRACNOSE DISEASE AGENT OF CITRUS IN MAZANDARAN PROVINCE. IRANIAN JOURNAL OF PLANT PATHOLOGY, 44(1 (173)), 37-53. SID. https://sid.ir/paper/48393/en

Vancouver: Copy

BABRI M., JAVAN NIKKHAH M., TAHERI H., ALIAN Y.M., FATTAHI MOGHADAM J.. ETIOLOGICAL STUDY AND DISPERSION APPOINTMENT OF ANTHRACNOSE DISEASE AGENT OF CITRUS IN MAZANDARAN PROVINCE. IRANIAN JOURNAL OF PLANT PATHOLOGY[Internet]. 2008;44(1 (173)):37-53. Available from: https://sid.ir/paper/48393/en

IEEE: Copy

M. BABRI, M. JAVAN NIKKHAH, H. TAHERI, Y.M. ALIAN, and J. FATTAHI MOGHADAM, “ETIOLOGICAL STUDY AND DISPERSION APPOINTMENT OF ANTHRACNOSE DISEASE AGENT OF CITRUS IN MAZANDARAN PROVINCE,” IRANIAN JOURNAL OF PLANT PATHOLOGY, vol. 44, no. 1 (173), pp. 37–53, 2008, [Online]. Available: https://sid.ir/paper/48393/en

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