GENETICS OF REGENERATION OF WHEAT (TRITICUM-AESTIVUM L) PLANTS

Five genotypes of hexaploid wheat and their Fl hybrids were grown in t issue culture after three different periods bf callus maintenance, and were evaluated for plant regeneration capability. Evaluation of the n umber of regenerated plants per callus showed that this trait is mainl y determined by additive gene effects, with high heterotic potential. Plant regeneration capability is relatively easy to select for, especi ally when; this regeneration is obtained af ter a short period of call us maintenance. Longer periods of callus maintenance led to a consider able reduction in plant regeneration capability in wheat.