Apical Dominance

Apical dominance is the phenomenon whereby the central stem of a plant grows more strongly than its side stems. It’s caused by the presence of auxin, a growth hormone, in the central stem that inhibits the growth of side branches. Apical dominance is what gives trees their typical shape, with a strong leader and shorter secondary branches.

1 comment on “Apical Dominance

  1. Pingback: Can You Root a Christmas Tree? – Laidback Gardener

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