Give one antagonistic function of each of the following hormone pairs.

1.	Give one antagonistic function of each of the following hormone pairs. (i) Gibberellins-Abscissic acid (ii) Cytokinin-Ethylene (iii) Ethylene-Auxin.
Answer» (i) Gibberellins: Stem elongation. Abscissic acid: Acts as a growth inhibitor. (ii) Cytokinin: Counteract the dominance of apical buds. Ethylene : Causes apical dominance and fruit ripening. (iii) Auxin: It inhibits the above functions. Ethylene: It breaks seed and bud dormancy and induces respiration rate during fruit ripening.

Give one antagonistic function of each of the following hormone pairs. (i) Gibberellins-Abscissic acid (ii) Cytokinin-Ethylene (iii) Ethylene-Auxin.

Answer»

(i) Gibberellins: Stem elongation.

Abscissic acid: Acts as a growth inhibitor.

(ii) Cytokinin: Counteract the dominance of apical buds.

Ethylene : Causes apical dominance and fruit ripening.

(iii) Auxin: It inhibits the above functions.

Ethylene: It breaks seed and bud dormancy and induces respiration rate during fruit ripening.