It takes very long time for pineapple plants to flower. Which combination of  hormones can be applied to artificially induce flowering in pineapple plants through out the year to increase the yields?

 

  • Option 1)

    Auxin and Ethyelene

  • Option 2)

    Gibberellin  and Cytokinin

  • Option 3)

    Gibberellin and Abscisic acid

  • Option 4)

    Cytokinnin and Abscisic acid

 

Answers (1)

 

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

 

 

Auxin and Ethylene can induce flowering in pineapple.

Other hormones like gibberellins are involved in seed germination, cytokinins in cell division, senescence etc. and abscisic acid in stress tolerance and stomatal movements.


Option 1)

Auxin and Ethyelene

Option 2)

Gibberellin  and Cytokinin

Option 3)

Gibberellin and Abscisic acid

Option 4)

Cytokinnin and Abscisic acid

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