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Title: The Austrian x red pine hybrid
Author: Critchfield, W. B.;
Source: Silvae Genetica 12, Heft 6: p. 187-191
Publication Series: Miscellaneous Publication
Description: The genetic improvement of red pine (Pinus resinosa Ait.) presents tree breeders with one of their most difficult problems. Not only is this valuable species remarkably uniform, but until 1955 it resisted all attempts to cross it with other pines. In that year red pine and Austrian pine (P. nigra var. austriaca [Hoess] Aschers. & Graebn.) were successfully crossed at the Institute of Forest Genetics, Placerville, California. The few hybrid trees from this cross have been .mentioned and illustrated by Duffield and Snyder (1958) and Righter (1962).
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Critchfield, W. B. 1963. The Austrian x red pine hybrid. Silvae Genetica 12, Heft 6: p. 187-191
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