Which one of the following growth regulators is known as ' stress hormone'?
Abscissic acid
Ethyelene
GA3
Indole acetic acid
Abscisic Acid (ABA) -
Mevalonic acid or xanthophyll is its precursor. Bioassay of ABA are rice seedling growth inhibition test and inhibition of α-analysis synthesis in barley endosperm test.
- wherein
Known as Stress hormone.
ABA is also known as stress hormone
Option 1)
Abscissic acid
This is correct option
Option 2)
Ethyelene
This is incorrect option
Option 3)
GA3
This is incorrect option
Option 4)
Indole acetic acid
This is incorrect option