The ocurrence in Chile of Mycosphaerella graminicola (Fuckel) Schroeter, telomorph of Septoria tritici Rob. ex. Desm.

Ricardo Madariaga B.1

From wheat stubble samples, obtained during March 1985 at the Ouilamapu Research Station (INIA), Chillán, Chile, it was possible to get bicellular ascospores, morphologically identical to those described for the fungus Mycosphaerella graminicola (Fuckel) Schroeter. Monoascosporic cultures on Yeast Malt Agar media, consistently yielded conidia and colonies similar to those obtained from picnidiosporic cultures of the fungus that causes Septoria Leaf Blotch. Pathogenicity tests, conducted on two wheat cultivars, gave positive results, with picnidial formation, following a 17 days latent periodo It was concluded that M. graminicola, the telomorph of Septoria Leaf Blotch, is present in Chile.

1 Estación Experimental Quilamapu (INIA), Casilla 426, Chillán, Chile.