Plant propagation with cottage and leverage is very easy, cheap and economical, however, grafting and budding is necessary because.
1. When other methods are not successful.
2. Adoptability for pest, diseases, tolerance to cold unsuitable climate by using suitable root stock.
3. Converting inferior plants in to superior one e.g. side grafting in mango.
4. To modify the growth of fruit plant. E.g. by using dwarfing rootstocks.
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