Notes: Response of Populus Hybrids to Aluminum Toxicity
Abstract:Twenty-two Populus clones, derived from various crosses among six species, were tested in solution culture for response to 3 ppm aluminum. Clonal mean responses varied from a maximum of 93 percent reduction in root elongation to a minimum of no reduction when compared with elongation in untreated solution. Hybrids derived at least in part from species in section Tacamahaca had significantly higher tolerances than those derived entirely from species in section Aegeiros. This difference is consistent with several reports of the performance of clones with similar pedigrees on moderately acid soils. The results confirm the relatively high Al-sensitivity of hybrid poplars, and they suggest a cause for some of the genotype x environment interactions that have occurred in trials of hybrid poplar. Forest Sci. 30:404-410.
Document Type: Miscellaneous
Affiliations: Assistant Professor of Forest Resources, School of Forest Resources, The Pennsylvania State University, University Park, PA 16802
Publication date: June 1, 1984
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