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22 May, 17:14

What is photonasty?

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Answers (2)
  1. 22 May, 18:23
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    photonasty:

    it is non directional movement of a plant towards or opposite a stimuli ...

    causes:

    due to increase or decrease in turgidity or due to exceptional growth it happens ...
  2. 22 May, 18:35
    0
    Photonasty is a type of nastic movement that is brought about by the stimuli which are non-directional but diffuse. Photonasty is induced by variation in the intensity of light. Many leaves that keep their surfaces fully exposed during the day time, drop at night. this dropping of leaves is brought about by changes in the turbidity of parenchymatous cells of the pulvini.
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