Q.

The plant growth regulator that promotes bolting in many plants with rosette habit also 

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a

promotes rapid internode/petiole elongation in deep water rice plants. 

b

hastens the maturity period, thus leading to early seed production in juvenile conifers.

c

promotes xylem differentiation.

d

promotes nutrient mobilisation which helps in the delay of leaf senescence.

answer is D.

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Detailed Solution

Gibberellins also promotes bolting (internode elongation just prior to flowering) in beet, cabbages and many plants with rosette habit. Spraying juvenile conifers with GAs hastens the maturity period, thus leading to early seed production.

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