TY - REP AU - Makkouk,K.M. AU - Azzam,O.I AU - Cherif,C. AU - El Yamani,M. AU - Skaf,J.S. AU - Zouba,A. ED - World Perspectives on Barley Yellow Dwarf International Workshop TI - Situation review of barley yellow dwarf virus in West Asia and North Africa SN - 968-6127-39 U1 - 91-061862 PY - 1990/// KW - Africa KW - Africa south of Sahara KW - Arab countries KW - Asia KW - Disease transmission KW - East Africa KW - Gramineae KW - Immunoenzyme techniques KW - Immunological techniques KW - Luteoviruses KW - Mediterranean countries KW - Middle east KW - North Africa KW - Pathogenesis KW - Plant diseases KW - AGROVOC KW - Plant viruses KW - Resistance to injurious factors KW - Viruses KW - Western Asia KW - Triticum N1 - 3 tables. 15 ref.; Summary (En) N2 - 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 (ELISA) indicated that BYDV incidence in the regions surveyed in Syria, Morocco, and Tunisia was around 7, 22 T2 - Burnett, P.A. (ed.). World perspectives on barley yellow dwarf. Proceedings. Mexico, DF (Mexico). CIMMYT. 1990. p. 61-65 ER -