Performance of a Wide-ranging Collection of Black Locust Seed Sources in Western Oklahoma


Results of a 1987 black locust (Robinia pseudoacacia L.) seed source planting in western Oklahoma are reported. The 116 families showed considerable variation in growth. Survival to age 5 remained above 90 percent for all but nine families. Between ages 5 and 10, 40 percent of the surviving trees suffered stem dieback, probably due to hot, dry summers. Consequently, if one is selecting for use in harsh environments, testing should be long term. Correlations of growth with latitude and longitude were found, but they accounted for 10 percent or less of the variation. Greatest variation was among families, and family selection for utilization or improvement is suggested.
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Publication Tree Planters' Notes
Event 2007
Section 6
Author Tauer, C.G.
Published 2007/02/01
Volume 52
Number 1
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