what are plant hormone?
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Plant hormones are signal molecules, produced within plants, that occur in extremely low concentrations. Plant hormones control all aspects of plant growth and development, from embryogenesis, the regulation of organ size, pathogen defense, stress tolerance and through to reproductive development.
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Plant hormones are organic substance that regulate plant growth and development . Plants produce a wide variety of hormones including auxins , gibberellians , salicylic acid , jasmonates and peptides.
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