Question

what are the plant growth substances give explain

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

plant growth substances are molecules of low molecular weight which are very active at very low concentration, do not appear to act as enzyme co-factors, and are active without metabolic conversion.......

Example:Auxin, gibberlins(GAs), cytokinins, abscisic acid(ABA), and ethylene...............