Which one of the following generally acts as an antagonist to Gibberellins?
Ethylene
ABA
IAA
Zeatin
, Abscisic acid (ABA) acts as a general plant growth inhibitor and an inhibitor of plant metabolism. It specifically states that in most situations, ABA acts as an antagonist to Gibberellins (GAs) . For instance, while Gibberellins promote seed germination, ABA inhibits it.
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