Plant light-growth discoveries
Subtitle: from photoperiodism to phytochrome
Series: ARS -- 22-64; ARS (Series) (United States. Agricultural Research Service) -- 22-64.
Publisher: Agricultural Research Service, United States Department of Agriculture
Published: 1961
Place of publication: [Washington, DC]
Language: eng
Number of pages: 17
Subjects: Plants; Effect of light on; Growth (Plants); Plant photoperiodism; Phytochrome
Other titles: ARS special report.
Notes: Title from cover.

"January 1961."