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Which phytohormone promotes falling of o...

Which phytohormone promotes falling of old leaves whereas inhibits falling of young leaves?

A

ABA

B

Cytokinin

C

GA

D

Auxin

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH INSTITUTE-PLANT GROWTH AND DEVELOPMENT-ASSIGNMENT (SECTION - A)
  1. Which type of phytohormone is made up of indole compounds?

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  2. Two synthetic auxins are

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  3. Which phytohormone promotes falling of old leaves whereas inhibits fal...

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  4. Which auxins are used in diluted form to produce parthenocarpic fruits...

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  5. Which of the following auxin is widely used as weedicide?

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  6. Which of the following is not a function of gibberellic acid?

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  7. Apical dominance is stimulated by auxin whereas it is inhibited by

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  8. Phytohormones resposible for cell division in callus are and .

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  9. Which phytohormoes is synthesised in ripened fruits?

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  10. Which of the following is incorrect about ethylene?

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  11. Select a correct match

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  12. Which of the following phytohormone is a derivative of carotenoids?

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  13. Match the following (column-I with column-II)

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  14. Match the following (column-I with column-II)

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  15. Dormancy of seeds broken by ethylene whereas it is induce by

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  16. The plant hormone which closses the stomata in stressful condition is

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  17. Both ethylene and ABA are responsible for

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  18. is a period when growth and development is temporarily stopped.

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  19. Florigen results in conversion of

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  20. Which type of plant can blossom throughout the year ?

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