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17th Northeastern Forest Tree Improvement Conference (1969)

Pennsylvania State University. University Park, Pennsylvania. August 4-6, 1969.

The Pennsylvan Tree Improvement Program: More Details
Phenotypic Variation in Sugar Maple in Relation to Altitude: More Details
Technique of Producing Silver Maple Seed Under Greenhouse Conditions: More Details
Multiple Witches Broom- A New Type of Abnormality in Scotch Pine (Pinus Sylvestrius): More Details
The Effect of Lammas Shoot Growth on the Stem Form of Young Scotch Pine: More Details
Studies With Douglas-Fir Seed and Exotic Conifers for Christmas Tree Production: More Details
Pitch Pine: A Literature Review: More Details
Performance of Fifty-Five Seedlots of Scotch Pine at Two Locations in New York: More Details
Shade Tree Improvement Research: Goals and Limitations: More Details