دراسة بيولوجية للفطر (Erysiphe necator Schwein) المسبب لمرض البياض الدقيقي على الكرمة في محافظة السويداء جنوبي سورية
Other Title(s)
A biological study of grapevine powdery mildew caused by Erysiphe necator Schwein in Sweida province, southern Syria
Joint Authors
العماد، نجود
نفاع، وليد غازي
العظمة، فواز
Source
Issue
Vol. 13, Issue 1 (30 Jun. 2020), pp.42-53, 12 p.
Publisher
Arab Centre for the Studies of Arid Zones and Dry Lands
Publication Date
2020-06-30
Country of Publication
Syria
No. of Pages
12
Main Subjects
Abstract EN
Grapevine powdery mildew caused by Erysiphe necator Schwein.
is one of the most important fungal diseases of the grapevine all over the world.
Due to the lack of local studies about the source of primary inoculum at the beginning of the season and the progression of the disease during the season, the aims of this study were to evaluate the incidence of grapevine powdery mildew and its biology on four local varieties cultivated in Sweida province (Syria) during 2015 and 2016.
The results showed that E.
necator survived as mycelium in grapevine dormant buds during winter to form “flag shoots” at the beginning of the season.
Although, cleistothecia were formed on infected leaves, but the ascospores may not have a significant role in the initiation of spring infection.The results showed also that the severity of the disease depended on the primary inoculum sources, the environmental conditions particularly frost, temperature, relative humidity, and the variety susceptibility.
It was shown that Balady and Black varieties were highly susceptible to powdery mildew on the leaves and clusters.
Salty variety was little susceptible, where symptoms have been observed on clusters holder only, while no symptoms were observed on Halwani variety, which seems to be the most resistant variety.
American Psychological Association (APA)
العماد، نجود ونفاع، وليد غازي والعظمة، فواز. 2020. دراسة بيولوجية للفطر (Erysiphe necator Schwein) المسبب لمرض البياض الدقيقي على الكرمة في محافظة السويداء جنوبي سورية. المجلة العربية للبيئات الجافة،مج. 13، ع. 1، ص ص. 42-53.
https://search.emarefa.net/detail/BIM-1340457
Modern Language Association (MLA)
العماد، نجود....[و آخرون]. دراسة بيولوجية للفطر (Erysiphe necator Schwein) المسبب لمرض البياض الدقيقي على الكرمة في محافظة السويداء جنوبي سورية. المجلة العربية للبيئات الجافة مج. 13، ع. 1 (حزيران 2020)، ص ص. 42-53.
https://search.emarefa.net/detail/BIM-1340457
American Medical Association (AMA)
العماد، نجود ونفاع، وليد غازي والعظمة، فواز. دراسة بيولوجية للفطر (Erysiphe necator Schwein) المسبب لمرض البياض الدقيقي على الكرمة في محافظة السويداء جنوبي سورية. المجلة العربية للبيئات الجافة. 2020. مج. 13، ع. 1، ص ص. 42-53.
https://search.emarefa.net/detail/BIM-1340457
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 51-53
Record ID
BIM-1340457