Asexual Propagation

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Asexual Propagation

• Original by Linda Rist
• Modified by Georgia Agricultural Education
  Curriculum Office
• July, 2002

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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 wilting 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
• Root one 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 relative humidity close to 100
• Plant loses water through leaves (transpiration)
  cant take up water fast enough to compensate
  without roots.

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Stem Cuttings

• Enclose containers in clear plastic
• Place out in 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
• Then new shoots sprout move plants to nursery row
• Ex raspberry