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Growth in internodal regions of green pl...

Growth in internodal regions of green plants is due to

A

indole acetic acid

B

cytokinins

C

gibberellins

D

ethylene

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Verified by Experts

The correct Answer is:
C
Gibberellin `(GA_3)` promotes internodal elongation in a wide range of species. This intemodal elongation phenomenon is known as bolting
Gibberellin is a plant growth hormone which was first time obtained from a fungus Gibberella fujikuroi (Fusarium moniliformi)
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-Plant Growth and Development -Exercise
  1. An enzyme that can stimulate germination of barley seeds is

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  2. Treatment of seed at low temperature under moist conditions to break i...

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  3. Growth in internodal regions of green plants is due to

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  4. Anthesis is a phenomenon which refers to:

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  5. One set of a plant was grown at 12 hours day and 12 hours night period...

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  6. Differention of shoot is controlled by

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  7. Plants deficient of element zinc, show its effect on the biosynthesis ...

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  8. Hormone responsible for ageing is

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  9. Which one prevents premature fall of fruit ?

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  10. Hormone that breaks dormancy of seeds/potato tuber is

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  11. Which of the folloewing is a long day plant

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  12. Protienaceous pigment which is the centre of the activities concerned ...

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  13. Which method makes the seed coat permeable and allows growth of embryo...

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  14. What reason will you assign for coconut milk used in tissue culture?

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  15. Geocarpic fruits are produced by

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  16. The closing and opening of the leaves of Mimosa pudica is due to

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  17. Which combination of gases is suitable for fruit ripending

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  18. The response of different organisms to environmental rhythms of light ...

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  19. A plant hormone used for inducing morphogenesis in plant tissure is ...

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  20. The pigment which mainly absorbs red and far-red radiation in plants, ...

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