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Published in Crop Sci 25:787-789 (1985)
© 1985 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Phenotypic Correlations Between Metal Tolerance and Morphology in Festuca rubra L.1

D. R. Huff and L. Wu2

Phenotypic correlations between Zn and Cu tolerance and a range of morphological characters were examined for three populations of red fescue (Festuca rubra L.) grown under noncompetitive conditions. The three populations were a commercial cultivar, Pennlawn, a Zn-tolerant cultivar, Merlin, and a Cutolerant ecotype, Stirling. Twenty-three morphological characters were examined for each population. Significant differences for tolerance index were found within as well as between populations for both Zn and Cu. A Spearman's rank correlation analysis for single morphological characters and a multiple regression analysis for grouped morphological characters did not reveal any substantial relationship between Zn or Cu tolerance and morphological characters in any of the three populations. Therefore, random selection for morphological characters within the Zn- and Cu-tolerant ecotypes of F. rubra should not alter their tolerance.

Key Words: Genetic resource • Copper tolerance • Zinc tolerance • Fescue

1 Contribution of the Dep. of Environmental Horticulture, Univ. of California, Davis, CA 95616. Research supported by Elvenia J. Slosson Endowment Fund and Agric. Exp. Stn. project Univ. of California, Davis, Ca-D*-EHT 4063-H. Part of a thesis submitted in partial fulfillment of the requirements for a master of science degree by the senior author.

2 Research assistant and associate professor, respectively, Dep. of Environmental Horticulture, Univ. of California, Davis, CA 95616.

Received for publication May 24, 1984.




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