Cultivar and environmental conditions affect the morphogenic ability of barley (Hordeum vulgare) scutellum-derived calli / Lenka Klčová, Michaela Havrlentová, Juraj Faragó. Biologia. Section A. Section B. Section C, Botany. Zoology. Cellular and molecular biology Vol. 59, no. 4 (2004), p. 501-504