Barley yellow dwarf virus in Iran
1990
Mahlooji, T. | Makoui, H.N. (Ministry of Agriculture and Rural Development, Karadj (Iran Islamic Republic))
Barley yellow dwarf (BYD) has been observed in barley (Hordeum vulgare L.) and durum wheat (Triticum turgidum L. var. durum) in Iran, but few symptoms have been seen in bread wheat (Triticum aestivum L.). Weed grasses are the principal host. BYD epidemics occurred in 1980 and 1987. Common aphid species found in Iran are Rhopalosiphum maidis (Fitch), R. padi (L.), Schizaphis graminum (Rondani), Sitobion avenae (Fabricius), and Metopolophium dirhodum (Walker). RPV-, RMV-, and SGV-like isolates are thought to be present. The symptoms of BYD vary with host, species, host age, virus isolate, and climatic conditions. Delayed planting seems to be the most effective means of control at the present time.
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