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The gaseous plant growth regulator is used in plants to:

  1. A
    Speed up the malting process
  2. B
    Promote root growth and root hair formation to increase the absorption surface
  3. C
    Help overcome apical dominance
  4. D
    Kill dicotyledonous weeds in the fields

Solution & Step-by-step Explanation

The gaseous plant growth regulator is Ethylene. One of its physiological effects is promoting root growth and root hair formation, which significantly increases the surface area for water and mineral absorption.Malting is sped up by Gibberellins.Apical dominance is overcome by Cytokinins.Killing dicot weeds is a function of Auxins (like 2,4-D).

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The gaseous plant growth regulator is used in plants to:
A
Speed up the malting process
B
Promote root growth and root hair formation to increase the absorption surface
C
Help overcome apical dominance
D
Kill dicotyledonous weeds in the fields

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