COMPARISONS BETWEEN DOUBLED HAPLOID LINES PRODUCED BY ANTHER CULTURE, THE HORDEUM-BULBOSUM-METHOD AND LINES PRODUCED BY SINGLE SEED DESCENT IN BARLEY CROSSES

Possible negative effects of tissue culture on qualitative and quantitative characters have been investigated in three crosses of spring barley, using doubled haploid lines produced by anther culture (AC, with maltose as a carbon source) or the Hordeum bulbosum-method (HB). In one cross inbred lines produced by single seed descent (SSD) have also been included. Quantitative characters were investigated in a 2-year field experiment at one location. The results show that although the methods in the majority of cases gave similar results, the genotypic arrays produced were not identical. Different markers deviated in the various cross/method combinations. The ranking of methods as well as the frequencies of lines transgressive for grain yield differed between crosses. Thus no consistently negative impact of anther culture in barley has been found, and, although not identical, the various methods may be considered equivalent.