Figure 6 shows; the number of cotyledon explants produced callus in IC genotype was higher in CIM1 and CIM7 respectively. Higher number of cotyledon explants produced callus in genotype 436 was in CIM4, CIM3 and CIM7 respectively (Fig. 6).
It was clearly intelligible that the composition of the culture medium, plant growth regulators concentration and explants type are three important factors beside genotype and Ploidy effect in callus formation and subsequently, developing the adventitious shoot regeneration in Beta vulgaris plants