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JSS2: AGRICULTURAL SCIENCE - 1ST TERM

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  1. Farm Structures & Building | Week 1
    2 Topics
  2. Definition of Farm Buildings | Week 2
    6 Topics
    |
    1 Quiz
  3. Crop Propagation & Cultural Practices I | Week 3
    3 Topics
  4. Crop Propagation & Cultural Practices II | Week 4
    3 Topics
    |
    2 Quizzes
  5. Agricultural Practices I | Week 5
    3 Topics
    |
    1 Quiz
  6. Agricultural Practices II | Week 6
    3 Topics
  7. Harvesting Operations | Week 7
    4 Topics
    |
    1 Quiz



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Topic Content:

  • Methods of Vegetative Propagation
    • Natural Vegetative Propagation – suckers, bulbs, rhizomes, corms, runners
      stem tubers, root tubers
    • Artificial Vegetative Propagation – cutting, layering, budding, grafting

Asexual, or Vegetative Propagation, involves the use of vegetable parts of crops as planting materials. Plant parts that can be used are stems, roots, and leaves.

Asexual propagation is suitable for the cultivation of crops that do not produce seeds.

Examples of crops that can be propagated vegetatively are cassava, yam, potato, banana, breadfruit, cocoyam, onion, pineapple, etc.

Pineapple Propagation
Pineapple Propagation.

Methods of Vegetative Propagation:

There are two main types of vegetative propagation namely:

1. Natural method of vegetative propagation.

2. Artificial method of vegetative propagation.

1. Natural Vegetative Propagation:

Many plants produce propagation parts naturally. These parts can be used to produce new plants.

The methods vary and include the following:

a. Suckers:

These are short underground horizontal branches ending in terminal buds. They are modified stems that produce natural branches. Examples of crops, that can be propagated by suckers, are pineapple, banana, and plantain.

Sucker
Suckers.

 

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