Situation review of barley yellow dwarf virus in West Asia and North Africa
Makkouk, K.M.
Situation review of barley yellow dwarf virus in West Asia and North Africa - 1990 - Printed
3 tables. 15 ref.; Summary (En)
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,
English
968-6127-39
Africa
Africa south of Sahara
Arab countries
Asia
Disease transmission
East Africa
Gramineae
Immunoenzyme techniques
Immunological techniques
Luteoviruses
Mediterranean countries
Middle east
North Africa
Pathogenesis
Plant diseases
Plant viruses
Resistance to injurious factors
Viruses
Western Asia
Triticum
91-061862
Situation review of barley yellow dwarf virus in West Asia and North Africa - 1990 - Printed
3 tables. 15 ref.; Summary (En)
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,
English
968-6127-39
Africa
Africa south of Sahara
Arab countries
Asia
Disease transmission
East Africa
Gramineae
Immunoenzyme techniques
Immunological techniques
Luteoviruses
Mediterranean countries
Middle east
North Africa
Pathogenesis
Plant diseases
Plant viruses
Resistance to injurious factors
Viruses
Western Asia
Triticum
91-061862