Detection of Potato Spindle Tuber Viroid, and Its Impact on Growth, Production of Tomatoes in Greenhouse
Detection of Potato Spindle Tuber Viroid, and Its Impact on Growth, Production of Tomatoes in Greenhouse作者机构：College of Education Gasar bin Ghashir University of Tripoli Tripoli Libya College of Agriculture University of Tripoli Tripoli Libya College of Agriculture Ajafarh University of Tripoli Tripoli Libya College of Agriculture Ain Shams University Cairo Egypt
出 版 物：《Journal of Agricultural Science and Technology(B)》 (农业科学与技术（B）)
年 卷 期：2012年第2卷第8期
页 面：940-949页
学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 090402[农学-农业昆虫与害虫防治] 0902[农学-园艺学] 090202[农学-蔬菜学]
主 题：Potato spindle tuber viroid the infection of tomato plants nucleic acid PCR.
摘 要：The viability of most tomato varieties cultivated in Libya have been tested to infect with potato spindle tuber viroid/potatoes （PSTVd） and its impact on growth and production of some of these varieties, which were mechanically inoculated with Libyan isolate of viroid PSTVd as follows： Vlkato, Sankarh, Lebda, Jasmine, Kenza and Hana. The percent of incidence were 95.95%, 90%, 90.80%, 80% and 20%, respectively. The following varieties have been contagious mechanically with viroid of PSTVd： Vlkato, zahra, Toria, Lebda, Hoda, Farwa, Alkaraz, Naziha, Rim Star and Kartika. The percent of incidence were 95.95%, 85%, 85.80%, 80%, 70.40%, 0.0%, 0.0%, respectively. The varied symptoms of wrinkle, twist, warp, swell the veins of the leaves, dark brown spots formation and a large yellow spots turned into white patches. Also the effect of the Egyptian isolate viroid PSTVd in the growth and production of varieties Jasmine, Lebda, Soberhalim, and treasure No. 185 had been studied, as the average rates of decline in the production of the fruits tomatoes/tomato 43.4% and 17% length of plants, and in the fresh weight and dry root of the sum of 35% and 37% respictively.
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