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In callus culture, roots can be induced by the supply of
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auxin
Tissue culture is the technique of maintaining and growing cells, tissue, etc. and the differentiation on artificial medium under aseptic condition.
Callus is a irregular, unorganised and undifferentiated mass of actively dividing cell. Differentiation of callus is under control of two hormones, ie, auxin and cytokinin.
$\begin{array}{l|l}
\hline \text{Development of} & \text{Condition} \\
\hline \text{Root} & \frac{\text { Auxin }}{\text { Cytokinin }}= \text{High} \\
\text{Shoot} & \frac{\text { Auxin }}{\text { Cytokinin }}= \text{Low} \\
\text{Both root and shoot} & \frac{\text { Auxin }}{\text { Cytokinin }}= \text{Intermediate} \\
\hline
\end{array}$
Callus is a irregular, unorganised and undifferentiated mass of actively dividing cell. Differentiation of callus is under control of two hormones, ie, auxin and cytokinin.
$\begin{array}{l|l}
\hline \text{Development of} & \text{Condition} \\
\hline \text{Root} & \frac{\text { Auxin }}{\text { Cytokinin }}= \text{High} \\
\text{Shoot} & \frac{\text { Auxin }}{\text { Cytokinin }}= \text{Low} \\
\text{Both root and shoot} & \frac{\text { Auxin }}{\text { Cytokinin }}= \text{Intermediate} \\
\hline
\end{array}$
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