Time isolation as a safeguard to varietal purity in perennial ryegrass, annual ryegrass, and orchardgrass, Corvallis, Oregon
By: [H.H. Rampton]
Contributors: Oregon State University. Agricultural Experiment Station.
Series: Circular of information / Agricultural Experiment Station, Oregon State University -- 623.; Circular of information (Oregon State University. Agricultural Experiment Station) -- 623.
Publisher: Agricultural Experiment Station, Oregon State University
Published: 1966
Place of publication: Corvallis, Or
Language: eng
Number of pages: 12
Subjects: Italian ryegrass -- Flowering time.; Orchard grass -- Flowering time.; Lolium perenne -- Flowering time.
Notes: Cover title.

"March 1966."