What is a grafted pecan tree?

Randy S. Sanderlin, Bollich, Patricia A.  |  12/1/2006 2:56:22 AM

Pecan cultivars are produced by cloning, and each tree of a given cultivar is hypothetically genetically identical. Pecan trees are clonally propagated by some form of grafting or budding using scion wood or bud wood taken from a tree of the cultivar that will be propagated. Because they are clonally produced, trees grown by grafting will produce nuts that are identical to the source of the graft wood. Because grafted trees already contain sexually mature wood they will begin to produce nuts more quickly than ungrafted trees that have to go through a juvenile growth phase that can take several years before they can produce nuts. In addition, because ungrafted trees are the result of genetic recombination, it is not possible to predict what the nuts will be like. Grafted trees are used to produce nuts of the same cultivar in a planted orchard.

Question answered by Dr. Randy Sanderlin, Pecan Research-Extension Station plant pathologist.

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