Methods of Propagation sexual and Asexual Propagation.pptx

Methods of Propagation, Sexual and Asexual Propagation

1. The use of seed is the most practical and even the cheapest way of propagation. Rootstocks that are used in grafting are propagated by seeds.

2. Advantages of using seeds Most practical and cheapest way Stronger anchorage (for fruit trees grown from seed) which makes the tree resistant to strong winds

3. Disa dvantages of using seeds Fruit trees take a longer time to bear fruits. The resulting plant does not retain the characteristics of the parents because of gene segregation. Plants tend to grow into large trees.

4. Seeds can be categorized into two types based on the initial moisture content during extraction and the way viability is influenced by reduction in moisture while at storage. Seed Quality/Viability

5. the moisture content is initially high and the loss by drying below the critical level (20%) will lead to rapid loss of viability. R ecalcitrant seeds Examples:

6. R ecalcitrant seeds Examples: avocado, coffee, mango , lychee, cocoa, and rubber tree .

7. These seeds can be dried to prevent respiratory processes and placed in air tight containers to exclude oxygen. Orthodox seeds Examples:

8. Orthodox seeds include for example, Citrus aurantifolia, Capsicum annum, guava (Psidium guajava), Cashew (Anacardium occidentale) and most grains and legume types. Orthodox seeds Examples: