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  • On which of the following features of auxin, does Avena curvature test is based?  Option: 1 Chemical composition of auxin in Avena plant<

On which of the following features of auxin, does Avena curvature test is based?
 

Option: 1

Chemical composition of auxin in Avena plant
 


Option: 2

The saturated ring structure of auxin which is peculiar to Avena only
 


Option: 3

The weakly acidic nature of auxin
 


Option: 4

Polar transport of auxin in Avena coleoptile.
 


Answers (1)

best_answer
 

Avena Curvature Test:

  • This test is based on the experiments done by Went.
  • This test is based on the polar transport of auxin in Avena coleoptile.
  • The auxin applied on one side of the cut coleoptile stump will diffuse down that side only and will cause that side to grow more resulting in curvature of the coleoptiles. 
  • Within limits, this curva­ture is directly proportional to the amount of auxin applied.
  • 100 curvature is produced by auxin concentration of 150 micrograms per litre at 250C.

Avena Curvature Test is based on the polar transport of auxin in Avena coleoptile.
 

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shivangi.shekhar

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