11. Possible Involvement of Plant Growth Substances in Apical Dominance in Presence of Apical Bud
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19. Weedicides Weedicides Many synthetic auxins are used as selective weed killers and herbicides. 2, 4 - D (2, 4 - dichloro phenoxy acetic acid) is used to destroy broad leaved weeds. It does not affect mature monocotyledonous plants.