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Potential Height Gain from Selection in a Five-Year-Old White Oak Progeny Test

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Abstract:

A progeny test of Quercus alba L. was established in spring 1984 at 3 locations using 70 open-pollinated families of 1-0 seedlings representing midwestern acorn collections from 15 stands. Most sources of variation in the combined-location ANOVA of 5-yr height data were statistically significant. The among-location variance component was the single largest in this analysis, accounting for 62.9% of total variance. The interaction of families and locations, an estimate of genotype X environment interaction, accounted for 1.7% of total variance. Although the family-within-stand variance component was also low (2.3 %), the narrow-sense heritability for height was estimated to be 0.36 ± 0.22. Expected gains in tree height from early selection of the tallest trees in the fastest growing families were estimated at 30% at age 5. On the basis of these results, additional research efforts in white oak improvement may be warranted. South. J. Appl. For. 19(1):10-13.

Document Type: Journal Article

Affiliations: Indiana Department of Natural Resources, Vallonia State Nursery, Vallonia, IN 47281

Publication date: 1995-02-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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