21
Question
In which ratio is auxin and cytokinin present in the rooting medium
In which ratio is auxin and cytokinin present in the rooting medium
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Solution
The correct option is B Auxin is more and cytokinin is less
The ratio of auxin to cytokinin plays an important role in the effect of cytokinin on plant growth. Cytokinin alone has no effect on parenchyma cells. When cultured with auxin but no cytokinin, they grow large but do not divide. When cytokinin is added, the cells expand and differentiate. When cytokinin and auxin are present in equal levels, the parenchyma cells form an undifferentiated callus. More cytokinin induces growth of shoot buds, while more auxin induces root formation The plantlets that are grown from the callus are then transferred to a rooting medium to allow the growth of healthy roots. Only Auxin will not be present because shooting is also necessary.
The ratio of auxin to cytokinin plays an important role in the effect of cytokinin on plant growth. Cytokinin alone has no effect on parenchyma cells. When cultured with auxin but no cytokinin, they grow large but do not divide. When cytokinin is added, the cells expand and differentiate. When cytokinin and auxin are present in equal levels, the parenchyma cells form an undifferentiated callus. More cytokinin induces growth of shoot buds, while more auxin induces root formation The plantlets that are grown from the callus are then transferred to a rooting medium to allow the growth of healthy roots. Only Auxin will not be present because shooting is also necessary.
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