Freezing spring temperatures damage knobcone pine
By: Stanley L. Krugman.
Series: Research paper PSW -- 37.; U.S. Forest Service research paper PSW -- 37.
Publisher: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1966
Place of publication: Berkeley, Calif
Language: eng
Subjects: Pine -- Wounds and injuries; Plants -- Effect of cold on
Notes: Cover title.

Includes bibliographical references (p. 5).