Read the following statements and choose the following option: 1. The plant growth regulators are large, complex moleculres 2. All PGRs promote plant growth 3. The PGRs of the other group play an important role in plant responses to wounds and stresses of biotic and abiotic origin. 4. They are also involved in various growth inhibiting activities such as dormancy and abscission. 5. Plant growth regulators are various

Step-by-step solution

The plant growth regulators (PGRs) are small, simple molecules of diverse chemical composition. Plant growth regulators are variously described as plant growth substances, plant hormones or phytohormones. 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.