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U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Characterization of a Complex Pecan-water Hickory Population in Northern Louisiana

Techniques of multivariate analysis were used to study the pattern of variation in leaf traits among pecan, water hickory and intermediate types growing on a disturbed site near Baton Rouge. Parental types were well-differentiated and a range of intermediate or hybrid phenotypes were encountered. A multidimensional plotting technique (MDPLOT) was used to explore the possibility that the hybrid trees were a mixture of F 1 's and backcrosses to pecan. Analyses showed that the population has many of the characteristics of a hybrid swarm, and viable seeds were collected from the hybrid trees. The hybrid has potential as a timber tree.

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Author(s): Bart A. Thielges, Randall J. Rousseau, John R. Tolliver

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1977

Section: Session 3: Hardwoods