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House Plant Propagation. Asexual Methods. Layering Air layering Offsets Plantlets. Cuttings Stem Leaf Cane Division. Cuttings. Most commonly used asexual propagation method Pieces of vegetative material Adventitious rooting Seminal roots Non-seminal roots Stem, leaf, root
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Asexual Methods • Layering • Air layering • Offsets • Plantlets • Cuttings • Stem • Leaf • Cane • Division
Cuttings • Most commonly used asexual propagation method • Pieces of vegetative material • Adventitious rooting • Seminal roots • Non-seminal roots • Stem, leaf, root • Herbaceous and woody species
Stem Cuttings contain ≥ one bud • Terminal (tip) cuttings • Non-terminal cuttings • ≈ 3’’ long with leaves • Herbaceous • Woody plants • Softwood • Semi-softwood • Hardwood
Leaf Cuttings • Herbaceous cuttings • Full • Partial • Leaf-vein • Leaf-bud
Divisions • Mother plant divided into smaller sections
Layering Induced Layering • Simple layering • Wound stem, peg into soil
Rooting Hormones • Auxins occur naturally in plants • Promote cell division, cell expansion, rooting • Synthetic auxins available • Naphthaleneacetic acid (NAA) and indole 3-butyric acid (IBA) • solutions or powders; often used in combination • Rootone, Hormodin, Hormex, Dip ‘N Grow
Rooting Hormones Why use? • Promote rooting of cuttings • Increase rooting percentage of many hard-to-root plants • May shorten rooting time • May improve root quality and quantity • Cuttings of most plants will benefit from their use