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Document Type |
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Project |
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Document Title |
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Diagnosis of the lesion and resistance to bacterial diseases of citrus trees in the western region of Saudi Arabia. تشخيص ومقاومة أمراض التقرح البكتيري لأشجار الحمضيات في المنطقة الغربية للمملكة العربية السعودية. |
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Document Language |
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Arabic |
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Abstract |
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Ulceration is a bacterial disease (CBCD), which constitutes a real danger for the cultivation of citrus in many countries threatened the real growing citrus in the Western Region in Saudi Arabia in the future. And the importance of the disease and the nature of this research were more likely to determine the extent of the western region and how it moves with the diagnosis and assess the causes of some pesticides appropriate to combat it. Since the duration of the project identified Bashram Shahras only some of the data taken out of scope. Have been identified on the bacterial disease, ulceration and its features Almtmelch prominent structure in the well and embraced on the leaves and twigs. Atojd and disease in the areas of Huda al-Sham, Aljmom, Bahra, Jeddah, Wadi Nu'man and Al-Baha, and citrus farms located north of the valley and even the Khulais Medina Fajalah it. It has turned out to be different from the 7907 tree farms on both sides of the road or inside a housing 1522 Nhawwala tree has suffered a bacterial disease, ulceration, and that between 35 and examined the farm revealed nineteen of them about her disease in question. The varied number of trees infected farms different between 5 to 100%, and ranged from severity of disease between 3 to 50% was limited to the presence of the disease on lemon Mexican / The bacteria causing the disease is not internal pressure to stay alive on the leaves are the main source of the disease and effective way to move across distances long. The spread of the disease between farms because of the rain is considered limited and the spread of bin trees per farm is slow.
And cause bacteria (gram negative vod), which is characterized by yellow colonies shining in circles, composed of relatives Dquistoz potatoes (potato dextrose agar) indicated a high disease. And the proportion of phenotypic properties, moderation, and Alsearljojih test patients were identified with the disease Baktrellaalmspbh - Xanthomonas campestris PV Citri Alaciobh belong to the species. Have confirmed the properties of the DNA molecules and analysis of the RELP) DNA) that fact also made it clear that they differ slightly from the XC62 Alebanah species belonging to the group A.
The study showed that drop leaves and cutting away the parts infected with a bacterial insecticide spraying (Kasuran) or copper compounds other gardens newly formed entirely eliminates the patients. It is economically in the farm-durable goods. The uprooted trees and burning them as is the case in the United States does not recommend ordered by the climatic conditions in arid and Tangier's dropping leaves and twigs infected with an alternative to spraying chemicals operations of uprooting and burning. |
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Publishing Year |
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1410 AH
1990 AD |
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Added Date |
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Wednesday, April 30, 2008 |
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Researchers
| مشتاق علي خان | khan, moshtaq ali | Investigator | Doctorate | |
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