Chromosome aberration and ploidy equilibrium of Vicia faba in tissue culture

Different phytohormone concentrations induced different frequencies of various chromosome aberrations in calli of Vicia faba . The hypothesis of ploidy equilibrium was established. The chromosome doubling rate and reduction rate of each treated group were calculated in relation to the observed data and the hypothesis. The frequency of tetraploids and breakage are correlated with each other. The frequency of total aberrations is linearly correlated with that of micronucleus formation.