Characterization - grass hosts - and epidemiology of barley yellow dwarf virus isolates in West-Central Morocco
1992
El Yamani, M. (National Institute for Agronomic Research, Settat (Morocco)) | Hill, J.H. (Iowa State Univ., Ames (USA). Dept. of Plant Pathology)
anglais. Prevalence of barley yellow dwarf virus PAV-, MAV-, and RPV-like isolates was 56%, 35% and 9%, respectively, in West-Central Morocco. Disease incidence was greatest in the spring. Potential aphid vectors could be detected from February through May, although Rhopalosiphum padi was constantly present. All 15 grass species collected from the field and 14 of 16 species planted from seed were susceptible to virus infection
Afficher plus [+] Moins [-]italien. Nel Marocco centro-occidentale sono stati individuati isolati del virus del nanismo giallo dell'orzo simili a PAV, MAV e RPV rispettivamente del 56%, 35% e 9%. La virosi risulta acquisire la massima gravita in primavera. Afidi potenziali vettori del virus si rinvengono da febbraio a maggio; il Rhopalosiphum padi e costantemente presente. Tutte le 15 specie di graminacee reperite in campo e 14 delle 16 specie seminate sono risultate suscettibili all'infezione del virus
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