Twenty-year results of the Lake States jack pine seed source study
By: Richard M. Jeffers, Raymond A. Jensen
Contributors: Jensen, Raymond A., joint author; United States. Forest Service; North Central Forest Experiment Station (Saint Paul, Minn.)
Series: USDA Forest Service research paper NC -- 181
Publisher: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Published: 1980
Place of publication: St. Paul, Minn
Language: eng
Number of pages: 20
Subjects: Jack pine; Seeds -- Michigan -- Testing; Seeds -- Minnesota -- Testing; Seeds -- Wisconsin -- Testing
Notes: Bibliography: p. 19-20