The research was carried out to study the colour inheritance genetics of the root epidermis, core (phloem) and cortex (xylem), from the parental crosses of the varieties Pusa Meghali (Orange), Pusa Rudhira (Red) and Pusa Kulfi (Yellow). Resultant in crosses yielded uniform mixed colours in F1 (first filial generation), thus could enhance the security of human nutrition through the mixture of carotenoids and anthocyanins in the F1. The F1s were advance to produce F2 and backcross (BCP1 and BCP2)

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... generations, and the Chi-square test ratio (χ2) showed that the root colour of the orange epidermis and cortex (xylem) was dominant over the red and yellow colours, and regulated by dominant genes Oe and Ocx from the parent Pusa Meghali. While, the root colour of the orange core (phloem) was found to be recessive to the red (Rc) from Pusa Rudhira and yellow (Yc) colour from Pusa Kulfi, and to be regulated by a single recessive gene (oc) from the parent Pusa Meghali. These finding of genetic inheritance of colours would be useful in the development of bio-fortified F1 hybrids and varieties which are rich in flavonoids.