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The phenomenon of photoperiodism was dis...

The phenomenon of photoperiodism was discovered by

A

Lysenko Klippart

B

Borthwick Hendricks

C

Garner, Allard

D

Singer, Nicolson

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The correct Answer is:
C
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MOTION-PLANT GROWTH AND DEVELOPMENT-Exercise - 2
  1. Trees showing seasonal activities represents what kind of growth curve...

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  2. Select out the incorrect match :

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  3. Parenchymatous cell that are made to divide under controlled laborator...

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  4. Regarding factors affecting the development, PGR is the :-

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  5. Induction of rooting in stem cutting by auxin treatment would be benef...

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  6. If a tree flowers thrice in a year (October, January and july) in noth...

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  7. Why is vivipary an undesirable character for annual crop plants ?

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  8. Which of the following activities do not involve the role of GA?

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  9. Removal of shoot tips (decapitation) usually results in the growth of ...

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  10. Arithmatic growth is related to :-

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  11. Which plant hormone promotes the growth of lateral buds ?

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  12. The site of perception of light/dark duration are the

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  13. Which hormone pair is a hypothetical hormones:-

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  14. The phenomenon of photoperiodism was discovered by

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  15. Hormone involved in induction of -amylase in Barley endosperm :

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  16. Which statement is not correct about ethylene?

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  17. In sigmoid growth curve, the exponential phase slows down leading to a...

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  18. Which of the following plant growth regulators is responsible for 'res...

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  19. Plant growth regulators, which are involved in growth inhibiting activ...

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  20. (i) Promote nutrient mobilisation (ii) Overcome the apical dominanc...

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