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Document Type |
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Thesis |
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Document Title |
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Isolation and Identification of Various Viruses That Infecting Fig Plants In Makkah Al-Mukarramah Region عزل و تعريف الفيروسات المتنوعة التي تصيب نبات التين في منطقة مكة المكرمة |
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Subject |
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Faculty of Science |
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Document Language |
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Arabic |
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Abstract |
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Fig production in Saudi Arabia is in continuous turn down, since many diseases are compromising this crop and in particular those of viral origin. Initially, Direct tissue blots immunoassay (DTBIA) was conducted on eighty figs samples with different patterns of chlorotic blotches, mosaic, yellowish mottling and deformation were observed and collected in four fig-growing areas of Makkah : Al Jamoum, Huda Alshaam, Wadi Almughammas and Alwahat wa Alwohet regions, which represent of four main fig cultivars (Taifi, Brown Turkey , Celeste and Kadota) and confermed by RT-PCR assay to investigate the presence of FMV, FLMaV-1, FLMaV-2 and FMMaV. The infection overall average reached 70.00%, with peak of 80% and 75% in Al Jamoum and Alwahat wa alwohet respectively, followed by 65% and 60% in Wadi Almughammas and Huda Alshaam respectively. Accordingly, the viruses under investigation were all detected in the tested samples, with infection rates of 52.50% for FLMaV-1, 41.25% for FMV, 12.50% for FLMaV-2 and 8.75% for FMMaV. The results obtained clearly indicate how much deteriorated is the sanitary status of fig crop in these regions (70.00% of viral infection). There are two factors that help fig viruses to spread. First through infected propagating material (cuttings and grafting), and second by natural vectors (eriophyid mites) and reduce the spreads of fig virus and protect fig crop, we recommend to use pesticides to restrain the activity of eriophyid mites and avoid using infected plant for propagating. |
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Supervisor |
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Dr. Abdullah Abdulhafith Aljaddawi |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1443 AH
2022 AD |
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Added Date |
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Saturday, January 28, 2023 |
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Researchers
| محمد شافعي جوهور | Johor, Mohammed Shafey | Researcher | Master | |
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