A) PGR has diverse physiological effects on plants
B) PGR may act synergically or antagonistically
C) Two PGR can have same effect
D) GA fasters the maturity period
Explanation
Sypraying juvenile conifers with GAs hastens the maturity period, thus leading to early seed production. Gibberellin also promotes bolting (internode elongation just prior to flowering) in beet, cabbages and many plants with rosette habit
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.