Situation Review of Barley Yellow Dwarf Virus in West Asia and North Africa
Jefferson, O., Makkouk, K.M., & Skaf, J. (1987) Situation Review of Barley Yellow Dwarf Virus in West Asia and North Africa. In Proceedings of International Workshop of Barley Yellow Dwarf 1987, International Maize and Wheat Improvement Center, Udine, Italy, pp. 61-65.
Symptoms of barley yellow dwarf (BYD) have been observed on cereals in nearly all countries of West Asia and North Africa. Its incidence. however, has varied during the last 15 years. Observations from field surveys are summarized. Since symptoms of barley yellow dwarf virus (BYDV) are of low diagnostic value, especially in wheat (Triticum aestivum L.), more precise qualitative and quantitative detection was derived by vector transmission and serology. In 1985 and 1986. preliminary surveys by enzyme-linked immunosorbent assay (ELlS A) indicated that BYDV incidence in the regions surveyed in Syria, Morocco, and Tunisia was around 7. 22. and 24%. respectively. By vector transmission PAV-, RPV-, and RMV-like isolates ofBYDV were identified in Morocco and the PAV-like isolate in Syria. By serology PAV-like isolates were identified in Ethiopia, Lebanon. Morocco. Syria. and Tunisia. and MA V-like isolates were identified from Morocco and Tunisia. The PAV-like type was the most common in all countries surveyed. Screening for BYDV resistance by natural infection has been carried out in a number of countries of the region during the last few years. Screening for resistance by aphid inoculation was initiated in Syria in 1986 at the International Center for Agricultural Research in the Dry Areas (ICARDA). Such screening is expected to follow in other countries of the region soon.
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|Item Type:||Conference Paper|
|Keywords:||Situation review, Barley yellow dwarf virus, West asia, North Africa, Jefferson, Osmat, Ossmat, Azzam|
|Subjects:||Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > HORTICULTURAL PRODUCTION (070600)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 1987 [please consult the authors]|
|Deposited On:||07 Apr 2011 05:09|
|Last Modified:||23 Dec 2012 08:44|
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