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nafex - [NAFEX] PROPAGATION: Taking of plant cuttings: part 1

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  • From: "rooting" <rooting@hortus.com>
  • To: "NAFEX" <nafex@lists.ibiblio.org>
  • Subject: [NAFEX] PROPAGATION: Taking of plant cuttings: part 1
  • Date: Sun, 28 Mar 2004 17:18:43 -0500

Taking of Plant Cuttings Used to Propagate New Plants

Basics of taking plant cuttings

Plant shoot cuttings are usually taken from plant growth of the current
growing season. Cuttings may be taken from various stages of plant growth.
The range of cuttings is from succulent to hardwood. It is not possible to
state one type of cutting which is useful for all plants.
Adjust the timing to take cuttings based upon the locale.

Cutting for most plants propagated in the greenhouse can usually be taken at
any time. Cuttings from deciduous plants are usually taken in early summer.
Cutting should not usually be taken from the end of a branch nor the top
part, rather, in between. Testing and experience will allow you to select at
what stage of maturity each type of plant will root best.

Select the 'best' time to take cuttings from the stock plant

Some cutting from the same stock plant may root while others may not. There
may be a 'best time' to take cuttings from the plant. Rooting of cuttings is
affected by many variables. Some plants have different rooting ability at
different times of the year. A few weeks difference in taking of cuttings
may produce success or failure. Woody plants are especially influenced by
timing. After a certain age, often years, some plants may even have
difficulty producing cutting viable to produce roots.

Juvenile cuttings

Some plants produce better rooting when cuttings are taken from juvenile
parts of the plant. When taking shoot cuttings from the same stock plant at
the same time some cuttings may have different rooting ability. While a
cutting may be young in growth age they may be old relative to the stem from
which the cutting is taken. Physically young cuttings taken from the top of
a two year old tree branch may exhibit root initiation performance as if
they were two year old cuttings.

Cuttings taken from near the base of the plant may exhibit rooting
characteristics similar to the real age of the cuttings; months old rather
than years old. One reason may be the position of the shoots on the plant.
Current years shoots may root different from second year shoots. Shoots from
the lower part of the plant may have less sunlight than the upper shoots.
The upper shoots may be a few weeks older than the lower shoots. Younger
shoots need less stimulation, to root than older shoots; use a lower rooting
hormone concentration such as Hortus IBA Water Soluble Salts or Rhizopon AA
dry powders. The younger shoots require a more stable propagation
environment.

Sometimes it is beneficial to induce juvenility by maintaining relatively
young mother plants or to hedge the young mother plants. Pruning of the
mother plants should be limited since the mother plant must constantly
produce energy to produce new shoots. Change the mother plants frequently to
induce better quality cuttings.

Keep good notes

When taking cuttings it is important to keep notes. Include data such as the
number of days after a key repeatable event, such as the flowering of
forsythia to account for seasonal variation. Also note the origin of the
cutting, the time and weather when the cuttings were taken and time of
sticking, the date, etc.






  • [NAFEX] PROPAGATION: Taking of plant cuttings: part 1, rooting, 03/28/2004

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