1 / 20

Propagation

Propagation. The art of asexually reproducing plants. Intro. Propagation is the process of making a new plant also called a clone genetically identical to the parent plant that it originated from. Germination.

michi
Télécharger la présentation

Propagation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Propagation The art of asexually reproducing plants

  2. Intro • Propagation is the process of making a new plant also called a clone genetically identical to the parent plant that it originated from.

  3. Germination • An optional step of propagating seeds is to germinate the seed outside of soil before planting. • This ensures a successful start for your plants.

  4. Germination Needs • For germination to be initiated, two conditions must be fulfilled. • First, the seed must be alive and capable of germination. • Second, the seed must meet the appropriate environmental conditions: available water, proper temperature, a supply of oxygen, and sometimes light.

  5. Seed PropagationGerminating • A good way to do this is to fold the desired seed in a wet paper towel. • Let it sit inside the wet paper towel until roots begin to sprout out of the seed. • When 2-3 centimeters of root is showing it is ready to be planted.

  6. Seed Propagation(continued) • Place the seed (root down) in the recommended depth of soil which is about twice the seed length. • Cover with soil and pack down lightly. • Make sure to water enough to saturate the soil but not to much for it can cause the seed to drown or promote mold growth.

  7. Seed Propagation • Some prefer to simply take the desired seed, push into the soil and water gently. • This method works but the survival and growth rate are lower than if the seeds are germinated first.

  8. Division • Division is close to the layering method of propagation. • This method is executed differently for different types of stems. • Stolons, runners, and offset stems are used for this method of propagation.

  9. Division(continued) • Stolons and runners are treated relatively the same. • Stolons are separated from the leaf axil. • Runners form plantlets at their ends which begin to root before separation.

  10. Division(continued) • Offset stems create plantlets like runners. • The plantlets are located at the base of the stem or leaf axil unlike runners. • They also can grow roots before separation like runners.

  11. Cuttings • In cutting propagation, a portion of the stem, root, or leaf is cut from the parent plant and is induced to form roots and stems by chemical, mechanical, and/or environmental control. • The new plant produced is referred to as a clone, which is identical to the parent plant • The three parts used in this method are; roots, stems, and leaves. There are multiple techniques for each.

  12. Cuttings(continued) • Stem cuttings can be divided into four groups according to the nature of the wood used: hardwood, succulent, softwood, and herbaceous.

  13. Cuttings(continued) • All cuttings must survive without roots, until the roots form, the rooting environment must support the new clone. • Speed of handling and placing of material into an environment that will enhance root development is needed for success. • When the roots are developed the plant can now independently grow and thrive.

  14. Importance of cuttings • Cuttings are the most important means of propagating ornamental shrubs; deciduous species, as well as the broad and narrow leaved evergreens. • Cuttings are also used in commercial greenhouse propagation of many florists crops such as poinsettias, chrysanthemums, geraniums, foliage crops, certain fruit crops and some vegetables.

  15. Importance of cuttings • Many clones can be started in a limited space from a few parent plants • It is inexpensive, rapid, and simple, and does not require the special techniques necessary in grafting, budding, or micropropagation

  16. Disadvantages of Cuttings • It is not always desirable to produce plants on their own roots by cuttings even if it is possible to do so. • Cutting propagation, like any other asexual technique, may potentially increase risk and susceptibility to disease.

  17. Making a Cutting • First you must have your media prepared in pots. • For the media to be ready it should be damp and have important ingredients such as vermiculite, perlite, and peat moss.

  18. Making a Cutting • Second you need to have a healthy mature plant. • Take one branch that is in good condition and find a node.

  19. Making a Cutting • A node is where a bud or branch emerges from the stem.

  20. Making a Cutting • Clean the leaves off up to three inches up the branch. • Gently push the cutting into the moistened media 2 inches • Lightly press down the soil around the cutting to ensure the support of your newly planted clone

More Related