In vitro genetics of barley (Hordeum vulgare L.): Response of immature embryos to 2,4-dichlorophenoxyacetic acid

The in vitro genetics of barley (Hordeum vulgare L.): detection and analysis of reciprocal differences for culture response to 2,4-dichlorophenoxyacetic acid

“…In vitro selection (Bright, 1985), exploitation of somaclonal variation (Larkin, 1985) and the possibility of interspecific gene introgression (Armstrong, Nakamura and Keller, 1983) rely on the accessibility of commercially desirable cultivars for culture establishment and plant regeneration. A preliminary evaluation of culture response (Powell and Dunwell, 1987) may allow the identification of responsive genotypes and the transfer of desirable genes controlling culture response may be achieved by conventional methods. Knowledge of the genetical systems underlying culture response will complement this approach and may even be used to predict the response to selection (Mather and Jinks, 1982) and the probability of obtaining desirable genotypes from a given cross (Jinks and Pooni, 1976;Caligari, Powell and Jinks, 1985;.…”