NEETBotanyPlant - Growth and Development
What role do plant growth regulators (PGRs) play in relation to other factors influencing plant growth and development?
Options
- AThey are the sole control mechanisms.
- BThey act independently of genomic and extrinsic factors.
- CThey work alongside genomic and extrinsic factors.
- DThey inhibit all other forms of control.
Correct answer
C. They work alongside genomic and extrinsic factors.
Step-by-step solution
The role of PGR is of only one kind of intrinsic control. Along with genomic control and extrinsic factors, they play an important role in plant growth and development. ABA helps seeds to withstand desiccation and other factors unfavourable for growth.