Grafting

Grafting is a non-genetic and simple method ; nonetheless, it requires specific know-how and some infrastructure. It is based on growing two types of plants;

Root stock –which provides a strong and resistant root system and Scion- usually the commercial variety. The new grafted organism will contain a combination of traits – strong roots and commercial productivity

Since the early days of modern horticulture grafted plants had been used to improve crop performance, mainly by improving mineral absorption and resistance to diseases. Soil and water borne disease grafted green house tomato, very healthy vigourous plant are very difficult to control (Bacteria, Fungi and Nematodes). Grafted horticulture has been known for the last 20 years, and has proven to be a powerful tool for controlling and preventing crop dumping due to soil borne diseases.

The rationale

1. Green house production has significantly reduced the use of crop rotation
2. Grower specialization, characterized by growing one crop all year round for several years, lead to a reduction in crop rotation ability.
3. Restricted or limited use of soil fumigation chemicals in horticulture such as Methyl bromide or Dasomet
4. Global resistance to introduction of plant characteristics by means of Genetic Engineering

Advantages of grafting

1. Healthy plants with significantly higher yields
2. Prolonged productivity
3. Reduced use of pesticides
4. Ability to guarantee production and supply (severe infection of Bacterial, Fussarium or Verticillium wilts can cause total crop loss)
5. Reduction in plant population consequently reduction on seed expenses ( growing with 2-3 stems versus 1 stem in conventional method) leads to less seedlings per Hectare
6. Gateway to organic production
7. Efficient utilization of nutrients