WEEK 7 - PROPAGATION TECHNIQUE

Hello there earthlings! We meet again. In the previous week, we have learned about fertilizer application. For this week, I will tell you guys about the propagation technique.

 But before that, I want to tell you guys that our day started with a speech from the DPIM alumni Mr Farid Zainal from FELDA. 

Mr. Farid Zainal shared with us about his experienced from learning in UiTM Arau Perlis to his various working experience.

Mr.Farid Zainal gave a speech about his experienced.

                     Now, let us get started with the main topic for this week which Propagation technique. What is plant propagation? Plant propagation is the process of growing new plants from a variety of sources: seeds, cuttings, and other plant parts. Plant propagation can also refer to the artificial or natural dispersal of plants. There are some technique that is used for propagation ; Budding, stem cutting, grafting, marcotting and layering. 

Layering

Stems still attached to their parent plants may form roots where they touch a rooting medium. Severed from the parent plant, the rooted stem becomes a new plant. This method of vegetative propagation, called layering, promotes a high success rate because it prevents the water stress and carbohydrate shortage that plague cuttings.

Grafting

Grafting is a method of asexual plant propagation that join plant parts so they will grow as one plant. These techniques are used to propagate cultivars that will not root well as cuttings or whose own root systems are inadequate. One or more new cultivars can be added to existing fruit and nut trees by grafting or budding.

One of my classmates did the grafting on the rubber seedling.

This is the hormone that we used. Other examples are IBA and NAA

Parafilm is used to wrap the bud.

The portion of the cultivar that is to be propagated is called the scion. It consists of a piece of shoot with dormant buds that will produce the stem and branches. The rootstock, or stock, provides the new plant’s root system and sometimes the lower part of the stem. The cambium is a layer of cells located between the wood and bark of a stem from which new bark and wood cells originate. (See Fruit chapter for discussion of apple rootstock).

Four conditions must be met for grafting to be successful: the scion and rootstock must be compatible; each must be at the proper physiological stage; the cambial layers of the scion and stock must meet; and the graft union must be kept moist until the wound has healed.

Budding

Budding, or bud grafting, is the union of one bud and a small piece of bark from the scion with a rootstock. It is especially useful when scion material is limited. It is also faster and forms a stronger union than grafting.

Marcotting or air layering

Is an asexual or vegetative method of plant propagation, can be easily performed with less skill.
n this layering method, roots are induced to form on the part of the plant while it remains aerial (aboveground), hence the term air layering. But in other layering methods, the same plant part is rooted on the ground usually by bending it downward.

Our lecturer briefed to us the way to marcotting or air layering.

This is the example of marcotting