The study indicated that inducing and differentiating frequenciesof gynogenic calli varied with cultivars used. Early keng rice exceled late kengrice, The rate of forming plantlets of early cultivars in growth period durationwere higher than that of late cultivars. The differentiation of calli into plantletswas influenced greatly by the hormones. MCPA (2-methyl-4-chloropheno-xyacetic acid ) exceled 2,4-D ( 2, 4-dichlorophenoxyacetic acid). The two factorsinfluencing...
