Asexual PropagationGrafting

Original work from “Applied Technologies” edited and used with permission by Dr. Teri Hamlin

Table of ContentsIntroduction to Plant PropagationSexual Propagation Asexual Propagation

Stem, Leaf, Cuttings Layering Separation & Division Budding and Grafting Tissue Culture

GraftingGrafting is a process by which two

different plants are united so that they grow as one.

Grafting TERMS

Scion - the newly installed shoot or top of the plant

Rootstock - the seedling or plant used as the bottom half of the graft

Scion

Rootstock

This is a REAL neat trick, but it doesn’t seem practical. Why would you choose to use it?

Reasons for Grafting:

To insert a different variety on part of the limbs of trees for cross-pollination

Obtain benefits of certain rootstocks

Benefits:

Disease resistant rootstocksStronger root systemsDwarfing capabilities

Requirements for Success

Stock and Scion must be compatibleCambium layers must match

*Can’t graft monocots --Why?Timing - scion should be dormant

(NOT actively growing)

Types of Grafts

Whip Graft

-- used when stock & scion are small and are the same size

Cleft Graft

-- used in topworking trees

-- stock is usually much larger than scion

Budding

Actually a form of graftingA single bud is used instead of a scionBudding is quicker2 main types:

- T-budding & Chip Budding

T-budding

Scion and Rootstock must be compatible

Bark must be slippingExamples: apples, pears, peaches,

plums, cherries, and roses

Chip Budding

Very similar to T-buddingAdvantage: wood can be dormant,

bark doesn’t have to slipWidely used for grapes