What is plant harmons give 4different type of plant harmons and state there function brifely
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plant hormones are usually growth promoters or inhibitors. some growth promoters are auxins and gibberellins,while growth inhibitors are abscisic acid and ethylene AUXINS-cell elongation and differentiation of shoots and roots CYTOKININS-promote cell division,promotion of sprouting of lateral buds, delaying the ageing in leaves, opening of stomata GIBBERELLINS-germination of seeds and sprouting of buds ;elongation of stems ;stimulation of flowering; development of fruit, breaking the dormancy in seeds and buds ABSCISIC ACID-closing of stomata;seed dormancy,promoting aging of leaves ETHYLENE-ripening of fruits
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