Asexual Propagation
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Transcript of Asexual Propagation
![Page 1: Asexual Propagation](https://reader030.fdocuments.net/reader030/viewer/2022032605/56812c2c550346895d90abad/html5/thumbnails/1.jpg)
Asexual Propagation
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Softwood & Semi-hardwood stem cuttings
When to take cuttings after current or present seasons
growth has partially hardened should be able to bend
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Stem Cuttings Collecting cutting wood parent plant that has made 2 to 6
inches new growth during current year
early morning is the best time to take cuttings
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Stem Cuttings Place cutting in water immediately
after taking cutting be sure to remember which is the
top of the cutting cut bottom at an angle cut top straight across
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Stem Cuttings Preparing Container & Rooting
media containers must have holes in the
bottom for drainage medium should be sterile mix medium before wetting to
assure uniform mixture
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Stem Cuttings Making the cuttings make as many 3 or 4 inch
cuttings as possible from each shoot
cut bottom at an angle allows more surface area to
contact rooting media for water absorption
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Stem Cuttings include 2 or 3 buds on each
cutting On hollow stems, cut just below
the node on the bottom and just above the node on top
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Stem Cuttings Treating and Inserting Cutting “Rootone F” rooting hormone Chemicals which help cuttings
grow more quickly and grow a larger number of roots
rooting hormones may contain fungicide
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Stem Cuttings place cutting in medium no more
than 2 inches deep Do not press media around
cutting, water to settle around it label cutting, include name of
rooting hormone used
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Stem Cuttings Controlling the atmosphere Keep R.H. close to 100% plant loses water through leaves
(transpiration) can’t take up water fast enough to compensate without roots.
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Stem Cuttings Enclose containers in clear
plastic place out or direct sunlight keep temp down
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Stem Cuttings Rooting Check for roots by holding
cutting and tugging gently resistance = roots developing growth on the tips or sides is
normal, but does not indicate root growth
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Stem Cuttings harden off when root ball is 2-3
inches after hardening off can be
“lined out” planted outside
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Herbaceous Cuttings Succulent greenhouse plants can make numerous cuttings
from parent plant cuttings 2-6 inches long
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Herbaceous Cuttings remove bottom leaves roots will grow from the node
where leaves were attached Use rooting hormone- ROOTONE not required speeds rooting process
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Herbaceous Cuttings high humidity bottom heat helps speed rooting
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Herbaceous Cuttings Leaf Cuttings African Violet Use leaf and petiole
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Herbaceous Cuttings Leaf-bud cuttings cut bud and leaf from stem cut leaf to a smaller size requires less moisture
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Herbaceous Cuttings firm into soil, water and cover in a
moisture right container. Can make many more cuttings from
parent plant than with stem cuttings rooting hormone should be weaker
strength.
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Herbaceous Cuttings Root Cuttings Can be made from any plant that
will sprout or sucker from the root. Cut roots 1/8 to 1/2 inch in
diameter in pieces 1-4 inches long.
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Herbaceous Cuttings place in sand in a flat water cover with glass or plastic when new shoots sprout move
plants to nursery row ex: raspberry