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One hormone hastens maturity period in j...

One hormone hastens maturity period in juvenile conifers, a second hormone controls xylem differentiation, while the third hormone increases the tolerance of plants to various stresses. They are respectively :

A

Auxin, gibberellin and cytokinin

B

Gibberellin, auxin, cytokinin

C

Gibberellin, auxin, ethylene

D

Gibberellin, auxin, ABA

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The correct Answer is:
D
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DINESH PUBLICATION ENGLISH-Plant Growth and Movements-RQ
  1. Senescence in plants leads into …..of cells

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  2. Which of the following is a dicot weedicide

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  3. One hormone hastens maturity period in juvenile conifers, a second hor...

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  4. Which is not the effect of ethylene

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  5. A few normal seedling of tomato were kept in a dark room. After a few ...

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  6. Dr. F. Went noted that if coleoptile tips were removed and placed on a...

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  7. Vernalisation is carried out in plants growing in

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  8. Gibberellins can promote seed germination because of their influence o...

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  9. Assertion.Plant growth regulators are very important for plant growth ...

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  10. Abscisic acid causes

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  11. The characteristics like expansion, breaking dormancy, promoting germi...

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  12. Which amongst the following is a natural growth regulator

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  13. 6-(4-Hydroxy-3 Methyl-trans-2-butenylamine) purine is also called

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  14. Cholodony and Went effect is due to (a) IAA (b) GA (c) Cytokinin ...

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  15. The hormone which reduces transpiration rate by inducing stomatal clos...

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  16. Bolting means

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  17. Phytochrome responsible for flowering is

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  18. The primary and secondary growth of a shoot inhibited by

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  19. The pigment that absorbs red and far-red light in plants, is

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  20. Which one is correct for blooming of short day plants

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