حصر ظاهرة عقم سنابل الشعير و علاقتها بنيماتودا ثآليل الشعير Anguina sp. في شمال سورية
Other Title(s)
Survey of head sterility in barley in northern Syria and its relation to seed-gall nematode Anguina sp.
Joint Authors
الزينب، محمد هشام
المملوك، عمر فاروق
خطيب، فاتح محمود
Source
Issue
Vol. 18, Issue 1 (30 Jun. 2000), pp.40-45, 6 p.
Publisher
Arab Society for Plant Protection
Publication Date
2000-06-30
Country of Publication
Lebanon
No. of Pages
6
Main Subjects
Abstract EN
As early as 1986, the phenomenon of head sterility in barley fields has been observed in the major cultivation areas in northern Syria.
Infected plants are tall and usually associated with head sterility causing remarkable yield losses, especially in fields with continuous barley planting.
Studies on head sterility during the harvest of 1996 included 120 samples representing 30 barley fields in the Al-Bab, Qabbasin, Jerablus and Menbij areas of northern Syria.
Incidence of head sterility varied in the surveyed fields between 9.6 and 57% (average 23.4%).
Estimated grain losses ranged from 0.1 to 43.2% (average loss of 11.2%).
Preliminary results showed that head sterility prevails in short, normal and tall plants at rather similar levels i.e.
21.9, 23.3 and 31.1%, respectively.
Furthermore, the results showed a correlation between head sterility and presence of the seed gall nematodes.
The nematode was found in 93.1% of totally infected spikes.
Barley seed gall nematodes also infected Hordeum spontaneum in most fields.
A closer look at the spikes showed that nematodes invade the sterile lateral florets of two–rowed barley and the percentage of recovered galls from these varied between 28–68% (average 45%).
These galls were thin and light and easily mixed with the fine straw falling on the ground during harvest, and constitute an important source of infection without influencing barley yield in the same season
American Psychological Association (APA)
خطيب، فاتح محمود والزينب، محمد هشام والمملوك، عمر فاروق. 2000. حصر ظاهرة عقم سنابل الشعير و علاقتها بنيماتودا ثآليل الشعير Anguina sp. في شمال سورية. مجلة وقاية النبات العربية،مج. 18، ع. 1، ص ص. 40-45.
https://search.emarefa.net/detail/BIM-376424
Modern Language Association (MLA)
الزينب، محمد هشام....[و آخرون]. حصر ظاهرة عقم سنابل الشعير و علاقتها بنيماتودا ثآليل الشعير Anguina sp. في شمال سورية. مجلة وقاية النبات العربية مج. 18، ع. 1 (حزيران 2000)، ص ص. 40-45.
https://search.emarefa.net/detail/BIM-376424
American Medical Association (AMA)
خطيب، فاتح محمود والزينب، محمد هشام والمملوك، عمر فاروق. حصر ظاهرة عقم سنابل الشعير و علاقتها بنيماتودا ثآليل الشعير Anguina sp. في شمال سورية. مجلة وقاية النبات العربية. 2000. مج. 18، ع. 1، ص ص. 40-45.
https://search.emarefa.net/detail/BIM-376424
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 45
Record ID
BIM-376424