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Horizontal growth of seedlings, swelling of the axis and the apical hook formation in dicot seedlings is brought by

Option: 1

Auxin

 


Option: 2

Gibberellins

 


Option: 3

 

Ethylene

 


Option: 4

Kinetin


Answers (1)

best_answer

 

 

Functions of Ethylene -

  • Mainly concerned with maturation and ripening of fruits by enhancing respiration rate
  • Stimulates transverse or isodiametric growth
  • Inhabits longitudinal growth
  • Induce flowering in pineapple
  • Promotes Senescence and Abscission
  • Breaks seed and bud dormancy
  • Promotes root growth and root hair formation
  • Promotes female flowers

- wherein

Commercial compound of ethylene - ethephon

 

 

Ethylene is a gaseous plant hormone which is also called as ripening hormone as it stimulates ripening of fruits. It also promotes the horizontal growth of seedlings, swelling of the axis and increase curvature by apical hook formation in dicot seedlings. This is called as triple response shown by ethylene

 

 

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chirag

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