NEETBotanyPlant - Growth and Development
How are PGRs broadly divided based on their functions?
Options
- AColour and smell
- BSource and structure
- CFunction and origin
- DGrowth promotion and stress response
Correct answer
D. Growth promotion and stress response
Step-by-step solution
Plant growth regulators are variously described as plant growth substances, plant hormones or phytohormones in literature. The PGRs of the other group play an important role in plant responses to wounds and stresses of biotic and abiotic origin. They are also involved in various growth inhibiting activities such as dormancy and abscission. The PGR abscisic acid belongs to this group.