Given below are four phytohormones select the one to which ABA acts antagonistically.
AGibberellic acid
BEthylene
CKinetin
DIndole Acetic acid
Answer:
A. Gibberellic acid
Read Explanation:
If two hormones have opposite actions on the plant body they are considered to be antagonistic.
Abscisic acid (ABA) is a plant growth inhibitor and plays a vital role in inhibiting plant metabolism and also induces seed dormancy under stressful conditions.
GAs are a group of growth hormone strongly associated with promoting growth, including stem elongation and seed germination.
So ABA functions as an antagonist to Gibberellins.
