Needle Mottle in Eastern White Pine Seedlings: A Selective Parameter for Air Pollution Sensitivity

Leon S. Dochinger; Stanford L. Arner

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Needle Mottle in Eastern White Pine Seedlings: A Selective Parameter for Air Pollution Sensitivity

Informally Refereed

Authors:

Leon S. Dochinger, Stanford L. Arner

Year:

1978

Type:

Research Paper

Station:

Northern Research Station

Source:

Res. Pap. NE-406. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5p.

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Download (PDF 645 KB): https://research.fs.usda.gov/download/treesearch/14662.pdf

Abstract

Positive correlations were established between morphological characteristics in eastern white pine seedlings and subsequent tolerance or sensitivity to air pollution 5 and 7 years after outplanting in Ohio plantations. Of 11 seedling variables, needle mottling was an accurate indicator of sensitivity or tolerance to air pollution. This characteristic, which may be genetically controlled, should allow for the detection and removal of sensitive white pines in the nursery during grading.

Citation

Dochinger, Leon S.; Arner, Stanford L. 1978. Needle Mottle in Eastern White Pine Seedlings: A Selective Parameter for Air Pollution Sensitivity. Res. Pap. NE-406. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5p.