| 1. | Vegetative propagation of plants via cuttings depends on adventitious root formation.
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| 2. | Ethylene slows down primary and adventitious root elongation and formation.
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| 3. | This species features very large, petiolated leaves with long adventitious roots.
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| 4. | Sometimes it uses adventitious roots to this end.
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| 5. | However, high concentrations of auxin inhibit root elongation and instead enhance adventitious root formation.
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| 6. | Adventitious roots are uncommon and possibly grow just occasionally when the stems become very long.
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| 7. | Natural layering typically occurs when a branch touches the ground, whereupon it produces adventitious roots.
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| 8. | The ability of plant stems to form adventitious roots is utilised in commercial propagation by cuttings.
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| 9. | Successful establishment requires a modest amount of soil moisture during the extension and development of adventitious roots.
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| 10. | The Tree Fern has quite adventitious roots, tubercles and hair-like follicles on its trunk.
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