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Asexual propagation = production of new plants without use of seeds.


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Asexual propagation. Asexual propagation = production of new plants without use of seeds. Why use asexual propagation?. Easier or cheaper to propagate than seed (e.g. potato). Able to produce uniform plants (clones). Some plants do not produce seeds (e.g. navel oranges).
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Agamic proliferation Asexual engendering = creation of new plants without utilization of seeds Why use abiogenetic spread? Simpler or less expensive to spread than seed (e.g. potato) Able to create uniform plants (clones) Some plants don't deliver seeds (e.g. navel oranges) Shorter time in adolescent stage (e.g. organic product trees) Able to consolidate new qualities into plant (e.g. European grapes, smaller person organic product trees) Create 'self-pollinating' assortments to spare space (e.g. 3-in-1 organic product trees)

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Today Wednesday Asexual spread Division Major sorts of abiogenetic proliferation: Cuttings Layering Grafting Budding Micropropagation (tissue society)

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Orchids (separate pseudobulbs) Asexual engendering Division = Separating plants by tearing separated roots, rhizomes or stolons Common strategy for multi-stem plants, for example, Ferns (rhizomes) Iris (rhizomes) Houseplants with rhizomes or roots (e.g. Sansevaria , African Violets, Aloe ) Spider plants (evacuate plantlets at finishes of stolons)

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Asexual proliferation Cuttings = creation of new plants from bits of stem, leaves, roots or buds Common strategy for engendering Types of cuttings: Leaf cuttings Leaf-bud cuttings Stem cuttings Root cuttings

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Asexual spread Advantages: numerous leaves/plant; few stock plants required Leaf Cuttings : Disadvantage: most plants can't deliver unusual shoots from leaves Types of leaf cuttings: Leaf-petiole cutting : whole leaf engendered Plantlet frames at base of petiole Use for African Violets, Begonia , Peperomia

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Asexual spread Types of leaf cuttings: Leaf Cuttings : Leaf-sharp edge cutting : simply leaf edge proliferated Plantlet shapes at base of leaf Use for jade and some succulent plants Leaf-vein cutting : opposite openings cut in veins of leaf Plantlets structure at every opening Use for some Rex Begonia species

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Asexual proliferation Types of leaf cuttings: Leaf Cuttings : Leaf-area cutting : part of leaf edge spread Plantlet shapes at base of cutting Use for Sansevaria (variegation won't duplicate) or Rex Begonia

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Asexual proliferation Leaf-bud Cuttings : stem segment with 1-2 parallel (axillary) buds engendered Used to acquire numerous cuttings from plants whose leaves don't shape extrinsic stems Axillary bud gets to be plantlet Use for houseplants, for example, Philodendron , Pothos , elastic tree and for some huge leaved bushes (e.g. Rhododendron )

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Asexual engendering for plants whose leaves don't frame extrinsic stems Stem Cuttings : part of stems spread Types of stem cuttings: Herbaceous cutting : originates from nonwoody plants (most houseplants, for example, Coleus , Poinsettia , corn plants) Softwood cutting : new, delicate stems taken from woody plants in Spring (e.g. Lilac , maple, dogwood) Semi-hardwood cutting : mostly develop wood on ebb and flow season stem in Summer (e.g. Rhododendron, Citrus trees) hardwood cutting : full grown stems Taken from deciduous plants in late Fall to early Spring when torpid Taken from evergreen plants in late Fall to late Winter when lethargic

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Asexual engendering Used to acquire cuttings from plants whose leaves don't shape unusual stems Root Cuttings : root segment proliferated Roots store sustenance holds at end of developing season; root slicing best late Winter to early Spring Use for houseplants with rhizomes and numerous woody bushes (e.g. Rubus ) Most cuttings more fruitful if: high dampness, sterile methods, use establishing hormones (IBA or NAA), embedded legitimately, adjust establishing medium, expansion of base warmth and taken at right time of year

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Asexual proliferation Layering = development of extrinsic roots without cutting the plant Two basic sorts: Air layering : wound stem, encompass stem with soggy sphagnum greenery and wrap with polyethylene Used for houseplants (e.g. elastic trees, corn plants) and woody plants (e.g. Cornus , Rhododendron ) Tip layering : stems of "mother" plant covered in soil to advance development of extrinsic roots Used for houseplants (e.g. Pothos ) and numerous woody bushes (e.g. Rhododendron , Forsythia , Rubus )