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What causes apical dominance?

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September 17, 2012 7:22PM

Apical buds are those located at the end of stems; lateral buds are located in the leaf axils along the length of the stems. Apical dominance occurs when a branch tends to get longer and longer without sending off branching shoots. This occurs because of a substance called auxin which is produced in the apical buds and which inhibits growth of stems from the lateral buds.