Bull. Spec. CORESTA Congress, Yokohama, 1996, p. 157, P6
Influence of magnesium on symptoms developed on tobacco (N. tabacum) by a potato virus Y isolate (PVY)
SEITA, Institut du Tabac, Bergerac, France
In a tobacco growing area of Central France, the appearance of symptoms typical of the "brown stems" disease, usually caused by necrotic strains of PVY, was reported on dark air-cured variety PB D6, reputedly resistant. The impossibility to reproduce...