Twining of tendrils is due to

Diageotropism

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Seismonasty

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Heliotropism

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Thigmotropism

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Solution

The correct option is D
Thigmotropism

Thigmotropism is the curvature movement of a plant in response to a unilateral stimulus of touch and can be observed in many climbers. In tendril climbers, the tendrils first show mutation and as soon as their apices touch a support, they move thigmotropically to turn around it.

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Similar questions

The climbing organs of plants like tendrils grow towards any support which they happen to touch and wind around the support. This is an example of :

(a) chemotropism

(b) nastic movement

(d) geotropism

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