The effect of barley yellow dwarf virus on barley yields in Mexico
1990
Trinidad, C.R. (Colegio de Postgraduados, Chapingo, Mex. (Mexico)) | Mezzalama, M. (CIMMYT, Mexico, DF (Mexico). Wheat Program) | Rodriguez, R. (Colegio de Postgraduados, Chapingo, Mex. (Mexico))
The Yd2 gene confers resistance to barley yellow dwarf virus (BYDV). Isogenic lines Atlas 68 (+Yd2) and Atlas 57 (-Yd2) from California and two common barley cultivars from Mexico, Centinela and Cerro Prieto, were exposed to the following treatments: infection with a PAV-like BYDV isolate vectored by Rhopalosiphum padi (L.) at the three- to four-leaf stage; infection with the same isolate at flowering; spraying with systemic insecticides; and natural infection. Significant yield decreases were observed with all the barley cultivars except Atlas 68.
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