Agri.report hard copy

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Agri.report hard copy

  1. 1. Technological University of the Philippines Program Agricultural Technology 505 Graduate MAT-THE ARTIFICIAL METHOD OF PLANT PROPAGATION Reported by: MARY JOSEPHINE ALICE N. DAYO
  2. 2. Artificial Propagation of Plants It is the process of making new plants from different plants of different parts of plants. METHODS OF ARTIFICIAL PLANT PROPAGATION 1. Layering This method of propagating readily by means of cutting. Layerage is the formation of roots from a portion of the stem. Under this method the roots and stems of a new plat are formed while they are still attached to the old plant. A. Marcotting/ Air Layering It involves scraping the bark from a portion of a tree branch and wrapping that section in soil or sphagnum moss. Under the right conditions, the area where the bark was removed will develop roots. Once this occurs, the branch is cut from the mother plant and allowed to grow by itself. It is one of the oldest propagating fruit trees
  3. 3. mjanda B. Simple Layering This is the most simple and common method of rooting stems that are still attached to the mother plants. It consist of laying down a branch and covering part of its length with soil, leaving the tip uncovered. Roots often from more readily if he buried portion of the branch is notched or girdled. At present, commercial plant growers use this method in propagating a number of ornamental shrubs. C. Tip Layering It is used mostly for the propagation of trailing ornamental shrubs and plants, berries, and grapes. The end of the canes is covered with shovelful of earth during the latter part of the summer months. The covered portion sends down and form a plant that can be set to the field during the wet season.
  4. 4. D. Stool or Mound Layering Consist of building up a mound 10 to 12 inches high after the mother plants are cut back close to the ground. Mound soil around the base of the new shoots as they grow with the tips uncovered. Roots from the base of the new shoots grow into the mound. Mounds are kept moist throughout the growing period of the plants until the rooted shoots are cut off or separated from the mother plant. E. Runner It is a natural type of layering. Strawberry roots at every other node or joint without assistance if the soil is kept moist. The buds at the rooted nodes send out leaves, thus forming a new plant which in turn, produced additional runner plants. A simple strawberry plant may produced fifty to one hundred or more runner plants in one seasons.
  5. 5. 2. Grafting Grafting and budding differ only in one aspect; in grafting, a shoot several centimeters long and bearing several buds is used to perpetuate a variety; budding , a single bud, with a bit of bark and perhaps a bit of wood attached to it, is inserted into the sock. Methods of Grafting and Budding A. Cleft Grafting It is usually employed to graft a new top on a young tree. Mature trees may be grafted but the difficulty of the operation increases with the age of the tree and with the size of the branches.
  6. 6. B. Tongue or Whip Grafting It is a common method of propagating young tree whose part are too small to be cleft-grafted. Most nurserymen establish known varieties on seeding roots by this method. Fruit tree growers use it to graft the trunks of small trees either after planting or later, and to change the tops of young trees by working over the branches to the variety desired.
  7. 7. 3. Budding  The process of transferring the lateral bud taken from the scion to the stock of the same family or genus.  It is widely popular for propagating any of our common fruit trees such as kaimito, avocado, coffee, citrus, and many ornamental and flowering trees.  Budding maybe done in several ways such as: A. Shield Budding Is useful in changing the variety of young fruit trees and those with small branches on either the trunk or the branches of young trees B. Plate Budding Make two parallel longitudinal cuts of equal lengths
  8. 8. C. Patch Budding Is commonly used by fruit tree growers in the country. This type of budding is widely and successfully used on thick-barked species of trees like the para rubber and santol 4. Inarching It is considered to be one of the oldest methods of propagating ornamental plants and fruit trees, it involves uniting two plants while growing on their own roots. It takes some time for these plants to unite unlike in the other methods of asexual propagation.
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