John Sager Measuring Lettuce Leaf Area

Summary

Agricultural engineer John Sager, a researcher at the Smithsonian's Radiation Biology Laboratory, Rockville, MD, measures lettuce leaf area. Sager has been studying the effects of pulsed, or intermittent, light on plant growth in an effort to determine whether plants grow more efficiently with intermittent radiation or with continuous radiation.

Subject

• Sager, John
• Radiation and Biology Laboratory Division of Radiation and Organisms
• Smithsonian Environmental Research Center Division of Radiation and Organisms

Category

Historic Images of the Smithsonian

Notes

• Smithsonian Institution Research Reports Summer 1980.
• The Smithsonian Radiation Biology Laboratory is now part of the Smithsonian Environmental Research Center.

Contained within

Smithsonian Institution Archives, Accession 98-016, Box 1, Folder: Research Reports Summer 1980

Contact information

Institutional History Division, Smithsonian Institution Archives, 600 Maryland Avenue, S.W., Washington, D.C. 20024-2520, SIHistory@si.edu

Date

1980

Restrictions & Rights

No restrictions

Topic

• Scientific apparatus and instruments
• Smithsonian Institution
• Personnel management
• Botany
• Employees
• Plants
• Photobiology
• Smithsonian Institution--Employees
• Research

Form/Genre

• Photographic print
• Person, candid

ID Number

SIA2011-1160 and 80-2438-26

Physical description

Number of Images: 1 Color: Black and White; Size: 10w x 8h; Type of Image: Person, candid; Medium: Photographic print

Full Record

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