Lesson Note On The Crop Propagation and Cultural Practices

The website has the complete lesson note for all the subjects in secondary school but this piece showcases the Lesson Note On The Crop Propagation and Cultural Practices. You can use the website search button to filter out the subject of interest to you.

CLICK HERE to download the complete Document: DOWNLOAD HERE

Asexual propagation of crops

Asexual propagation is the reproduction of new plants from parent plant through the use of vegetative organs/parts such as the leaves, stems, roots.

This method of crop propagation is also known as vegetative propagation of crops.

In this method, plant organs such as the leaves, stems, cuttings and roots are removed from their original parents, cut into suitable sizes and length and then planted into the soil for the production of more types of the same plant.

Forms of asexual propagation

1. Natural method of vegetative propagation
2. Artificial method of vegetative propagation

Natural method of vegetative propagation

Natural vegetative propagation is also known as propagation by division. This is a process whereby some plants from special vegetative organs (propagules) of their parent are separated and propagated naturally. This includes the following vegetative groupings with their examples:

1. Corms –cocoyam, radish, etc.
2. Suckers –plantain, banana, pineapple
3. Bulbs – onion, wild onion
4. Stem tuber- yam, bitter yam
5. Rhizomes – ginger, spear grass
6. Runners – sweet potato, strawberries
7. Bulbils – Bulbifera species of yam, wild yam.

Artificial method of vegetative propagation

Artificial method of vegetative propagation involves the deliberate reproduction of new plants from the cut-off parts of the parent plants by man for his use. The cut-off organs may be root, stem or leaf.

Forms of artificial vegetative propagation include

1. cutting
2. grafting
3. budding
4. layering
5. marcotting

 

1. Propagation by cutting: when plant organs are cut off from the parent, and the part are further cut into definite sizes in order to be used as planting materials.

Types of cuttings