Notes: Variation in Lodgepole Pine: Family Response to Stress Induced by Polyethylene Glycol 6000
Lodgepole pine seedlings from 19 wind-pollinated families representing six populations were grown under varying levels of osmotic stress induced by polyethylene glycol 6000. Measurements of dry weight and vigor responses showed that families varied significantly in stress resistance, but populations did not. Purposeful alteration of the forest genetic system should consider stress resistance, as well as growth characteristics. Individual tree selection for resistance to the type of stress imposed here may be more efficient than the provenance approach. Forest Sci. 24:523-526.
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