The Art and Science. of Grafting. Adam R. Wheeler Graduate Assistant University of Vermont. So What is Grafting?. - Grafting is the ART of connecting two pieces of living plant tissue so that they will unite, grow and develop as one plant. Grafting Terminology.
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- Grafting is the ARTof connecting two pieces of living plant tissue so that they will unite, grow and develop as one plant
Scion - short piece of detached shoot containing at least one dormant bud. The upper portion of the graft producing stems and branches
Rootstock (understock or stock) - lower portion of the graft. Produces the root system of the plant.
Vascular cambium - an area of actively growing tissue located between the bark (phloem) and wood (xylem). The cambium of scion must be in close contact with cambium of rootstock.
- First documented by the Chinese as early as 5000 B.C. when Feng Li, a Chinese diplomat, began grafting peaches, almonds, persimmons, pears and apples as a commercial venture.
1) hundreds of different types of agricultural and ornamental plants. ToPerpetuate clones
- Many plants (beech,
eucalyptus, fir, oak and
apple) root very poorly
- Consequently, clones of
these species are often
maintained by grafting.
2) from cuttings and therefore must be graftedTo Take Advantage of Rootstock Disease
and Pest Tolerance.
- Some rootstocks are able to withstand poor quality soils (compaction, poor drainage, dry, high salt levels) better than the scion’s root system.
4) prevent problems from nematodes and phylloxera = yellow aphid.Some Rootstocks Can Speed the Growth
of the Scion Into Early Maturity.
- Some shade trees (like Acer platanoides ‘Super Form’) can grow more quickly if grafted than if grown as a rooted cutting or even a seedling!
- With ornamentals, it is common to use an upright growing rootstock and a “weeping” or “dwarf” scion
8) to create a smaller sized plantGrafting can be used to change cultivars on established plants (topworking)
This method is used to:
The End to create a smaller sized plant