Vegetative Propagation of Horticulture Plants by Cuttings by k8l506d

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									Vegetative Propagation
           of
  Horticulture Plants
          by
       Cuttings
Vegetative Propagation of Horticulture Plants

 Introduction
                                  Vegetative propagation also
                                  called as asexual propagation
                                  is another method of plant
                                  propagation used widely in
                                  horticultural crops.
 Vegetative propagation uses several           Cuttings
 of the plant parts for reproducing the
 plant asexually.                              Runners

                                               Storage organs

                                               Layering

                                               Grafting

                                               Micropropagation
Vegetative Propagation of Horticulture Plants

 Introduction
                            Vegetative propagation is used to
                            get the similar genetic background
                            of mother plants.

     Good skill, knowledge and
     experience aids in vegetative
     propagation of plants in large
     scale.

                                      Vegetative propagation is
                                      widely used in horticultural
                                      crops’ nurseries.
Vegetative Propagation of Horticulture Plants

 Introduction

   The advantages of
   vegetative propagation are:
                              Mass production of plants using
                              plant parts of mother parent.
                             No seed is required to multiply
                             varieties having desired
                             quantitative and qualitative traits
                             Useful technique in production
                             of plants which are difficult to
                             propagate using seed.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings

 One of the easiest way of plant
 propagation is by using cuttings from
 various parts of the plants such as:

                                 Stem cuttings

                                 Root cuttings


                                 Leaf cuttings
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                                Stem cuttings


                                  Cuttings should generally consist
                                  of the current or past season’s
                                  growth.
Avoid material with flower buds
if possible.

                           Remove any flowers and flower buds
                           when preparing cuttings so the cutting’s
                           energy can be used in producing new
                           roots rather than flowers.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                                 Stem cuttings

   Take cuttings from healthy,
   disease-free plants, preferably
   from the upper part of the plant.

                                  Avoid taking cuttings from plants
                                  that show symptoms of mineral
                                  nutrient deficiency.

   Conversely, plants that have been
   fertilized heavily, particularly with
   nitrogen, may not root well.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                               Stem cuttings


                                The fertility status of the stock
                                (parent) plant can influence
                                rooting.
The stock plant should not be
under moisture stress.


                            In general, cuttings taken from young
                            plants root in higher percentages
                            than cuttings taken from older, more
                            mature plants.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                                Stem cuttings

   Early morning is the best time to
   take cuttings, because the plant
   is fully turgid.
                                While terminal parts of the stem
                                are best, a long shoot can be
                                divided into several cuttings.


    Cuttings are generally 4 to 6 inches
    long.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                                Stem cuttings


                                   Use a sharp, thin-bladed pocket
                                   knife or sharp pruning shears.


If necessary, dip the cutting tool in
rubbing alcohol or a mixture of 1 part
bleach to 9 parts water to prevent
transmitting diseases from infected
plant parts to healthy ones.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                                 Stem cuttings

  Remove the leaves from the lower
  one-third to one-half of the cutting
  (Fig.)



                                 On large-leafed plants, the remaining
                                 leaves may be cut in half to reduce
                                 water loss and conserve space.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                                Types of Stem cuttings

                              Softwood cuttings are prepared
                              from soft, succulent, new growth of
                              woody plants, just as it begins to
                              harden (mature).


     Shoots are suitable for making softwood
     cuttings when they can be snapped easily
     when bent and when they still have a
     gradation of leaf size (oldest leaves are
     mature while newest leaves are still small).
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                               Types of Stem cuttings

  Semi-hardwood cuttings are usually
  prepared from partially mature wood of
  the current season’s growth, just after a
  flush of growth.

                           The wood is reasonably firm and the
                           leaves of mature size.


    Many broadleaf evergreen shrubs and
    some conifers are propagated by this
    method.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                            Types of Stem cuttings


                            Hardwood cuttings are taken from
                            dormant, mature stems.

   The wood is firm and does not bend
   easily.


                       Hardwood cuttings are used most often
                       for deciduous shrubs but can be used
                       for many evergreens.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                                 Types of Stem cuttings


  The three types of hardwood cuttings
  are straight, mallet, and heel (Fig.).


                               A straight cutting (1) is the most
                               commonly used stem cutting.



                              Mallet (2) and heel cuttings (3) are used
    1       2      3          for plants that might otherwise be more
                              difficult to root.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                          Root cuttings

 Taking root cuttings is one of the
 most reliable and economical ways
 to produce many perennial and
 woody plants.


   Take a close look at the roots that
   you want to take cuttings from and
   make sure they're healthy, living
   roots, not dead ones that look black
   or dried out.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                               Root cuttings

                                    Look for large fleshy roots, the
                                    thicker the better. Choose roots
                                    that are pencil thick.




                              Take 2 to 6 inch (2 to 15 cm) cuttings
                              and then cut into 2 to 3 inch (6 to 7.5
                              cm) sections.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                           Root cuttings

   The best way to keep track of "up"
   and "down" is to make a flat cut on
   top or "up" side, and a slanted cut
   on "down" or bottom side.




    Water the plants to settle the roots
    back into the soil properly.
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                               Leaf cuttings

                            Whole leaf cuttings are prepared
                            from leaves with or without their
                            stalks (called petioles). Roots and
                            leaves will eventually form at the
                            base of the leaf (Fig.).

                                  Leaf section cuttings can be used
                                  for propagating plants.

         The leaves are cut into pieces, with
         the edge of the cuttings closest to the
         base of the parent plant inserted into
         the rooting medium .
Vegetative Propagation of Horticulture Plants

 Propagation using Cuttings
                                               Leaf cuttings

 Leaf bud cuttings consist of a single
 leaf attached to a piece of 1 to 1 1/2
 inch stem.

        The dormant bud, located where
        the leaf stalk joins the stem will
        give rise to a new shoot and
        branches (Fig.).

               The cutting should be inserted in the rooting
               medium with the bud about 1/2 inch below the
               surface.

								
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