| 1. | They are known to regulate axillary bud growth and apical dominance.
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| 2. | The mechanism of apical dominance is based on the plant hormone auxin.
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| 3. | It was first discovered that the plant hormone auxin likely regulates apical dominance in 1934.
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| 4. | But then our definition of tree, requiring apical dominance, seems odd to me.
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| 5. | Occasionally, strong apical dominance is advantageous, as in the " Ballerina " apple trees.
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| 6. | Apical dominance occurs because the shoot apical meristem produces auxin which prevents axillary buds from growing.
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| 7. | Recent investigations into apical dominance and the control of branching have revealed a new plant hormone family termed strigolactones.
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| 8. | Reiterations are identified by an upturned branch that had gained apical dominance and formed an additional branch supporting trunk.
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| 9. | If apical dominance is complete, it prevents any branches from forming as long as the apical meristem is active.
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| 10. | Elongation is controlled by the plant hormones called auxins, which are produced by the growing tip to maintain apical dominance.
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