ANTHER CULTURE RESPONSE OF HORDEUM SPONTANEUM-DERIVED WINTER BARLEY LINES

The anther culture response of 18 Hordeum spontaneum derived winter ba rley lines, as well as that of the F-2 and/or BC1 progeny of the cross between nine of these lines and the winter barley cultivar Triton was assessed. While the majority of lines showed a poor regeneration capa city (4%), two lines, RS 170-A13 x Sonja and RS 120-27 x Sonja demonst rated an outstanding response, producing 26 and 8 green regenerants pe r 100 anthers plated, respectively. Five further lines, RS 70-30 x Dur a, RS L74-11 x Dura, RS 122-19 x Sonja. RS 142-29 x Dura and RS 170-A5 1 x Sonja were identified as highly responsive in the F-2 generation. An average production of 4 green regenerants per 100 anthers plated wa s observed both in the parental and F-2 generation.