asexual propagation. softwood & semi- hardwood stem cuttings w when to take cuttings w after...

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Asexual Propagation

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Page 1: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Asexual Propagation

Page 2: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Softwood & Semi-hardwood stem cuttings

When to take cuttings after current or present seasons

growth has partially hardened should be able to bend

Page 3: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 4: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 5: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 6: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 7: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 8: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 9: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 10: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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.

Page 11: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Stem Cuttings Enclose containers in clear

plastic place out or direct sunlight keep temp down

Page 12: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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

Page 13: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Stem Cuttings harden off when root ball is 2-3

inches after hardening off can be

“lined out” planted outside

Page 14: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Herbaceous Cuttings Succulent greenhouse plants can make numerous cuttings

from parent plant cuttings 2-6 inches long

Page 15: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Herbaceous Cuttings remove bottom leaves roots will grow from the node

where leaves were attached Use rooting hormone- ROOTONE not required speeds rooting process

Page 16: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Herbaceous Cuttings high humidity bottom heat helps speed rooting

Page 17: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Herbaceous Cuttings Leaf Cuttings African Violet Use leaf and petiole

Page 18: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

Herbaceous Cuttings Leaf-bud cuttings cut bud and leaf from stem cut leaf to a smaller size requires less moisture

Page 19: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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.

Page 20: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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.

Page 21: Asexual Propagation. Softwood & Semi- hardwood stem cuttings w When to take cuttings w after current or present seasons growth has partially hardened

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