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List five main groups of natural plant growth regulators. Write a note on discovery, physiological functions and agricultural/horticultural applications of any one of them.
What would be expected to happen if:
Plant growth regulators (PGRs) have innumerable practical applications. Name the PGR you should use to- A.Nutrient mobilisation. B. Female flowers in cucumbers. C.Promotes bolting. D. Respiratory climactic.
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