Abscisic Acid: The Plant Stress Hormone — NEET Biology

Which of the following statements, linking a Plant Growth Regulator with its effect/application, are NOT correct? S1: Auxin – Initiates rooting in stem cuttings and prevents fruit drop at early stages. S2: Ethylene – Enhances the respiration rate during fruit ripening, a phenomenon called respiratory climactic. S3: Gibberellins – Delay senescence, allowing fruits to be left on the tree longer for extended market periods. S4: Cytokinins – Promote stomatal closure and increase plant tolerance to various stresses. S5: Abscisic acid (ABA) – Is primarily known for promoting rapid cell division in root apices and developing shoot buds. S6: Auxin – Applied to make weed-free lawns as 2,4-D kills dicotyledonous weeds without affecting mature monocotyledonous plants.