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