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Asexual Plant Propagation Techniques: Cuttage and Layerage

Learn about asexual propagation methods such as cuttage and layerage for growing new plants. Discover the types of cuttings, factors affecting rooting, and the process of forming roots on a stem while it's still attached to the mother plant.

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Asexual Plant Propagation Techniques: Cuttage and Layerage

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  1. Asexual propagation Vegetative prop.

  2. Asexual propagation • Cuttage • Layerage • Division • Graftage

  3. Cuttage • Things to consider: • Rooting medium • vermiculite and perlite or sand or water • Sterile/clean containers • Rooting powders or liquids

  4. Cuttage • Types of cuttings • Herbaceous • Softwood • Hardwood • Length 3 - 5” for herbaceous, 6-8” for softwood/hardwood. Generally, the longer a cutting, the better • Need a MINIMUM of 2 nodes

  5. Sticking easy-to-root cuttings directly in the ground

  6. Cuttage • Factors affecting rooting • Age of stock plant • Nutrients in stock plant • Flowers buds present/absent • Temperature (top of cutting vs. bottom) • Wounding • Application of auxins • Moisture/aeration of medium

  7. Cuttage • Factors • Time of year • Woody plants • Deciduous best in fall/winter when dormant • Narrow-leaved evergreens - best in fall/winter • Broadleaved evergreens - best in summer • Herbaceous • take during spring with new growth

  8. Cuttage • Types of cuttings • Tip cutting • Leaf-bud cutting • Leaf cutting

  9. Layerage • Process of forming roots on a stem that is still attached to a plant • Benefits: Renew an existing plant. Direct energy from “mother” plant • Problems: results in limited numbers of plants. Disease transmitted to new plant

  10. Layerage • Types: • Tip-layering. Often done with raspberries and other brambles). Tip of shoot inserted into ground upside down • Simple layering. Done in spring. 6” of tip is exposed. Wired and staked. Used on narrow-leaved evergreens

  11. Layerage • Types: • Mound layering (stooling). Used on low-branching shrubs • Air layering. To rejuvenate a “leggy” woody shrub or houseplant. • Girdle stem (cut phloem and cambium) • Wrap in moist sphagnum moss • Wrap in plastic and aluminum foil

  12. Air layering • Girdle stem (cut phloem and cambium) • Treat wound with rooting powder • Wrap in moist sphagnum moss • Wrap in plastic • Wrap in aluminum foil

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