PLANT GROWTH CHAMBER MANUAL A manual on maintaining the environment and growing plants in controlled growth facilities North Central Regional-101 Committee on Controlled Environment Technology Edited by R.W. Langhans and T.W. Tibbitts

Summary A handbook for beginning and experienced workers who use controlled growth facilities. The book provides a basic understanding of environmental factors - radiation (light), temperature, humidity, carbon dioxide, air movement, contaminants - and general plant responses. Included are chapters on how to control and monitor conditions, how to conduct effective research including design of experiments, conditions for different species, use of solid media and hydroponics, pest control, and growth chamber maintenance. Chapters are written by more than 30 scientists and engineers involved in research in controlled environments. This handbook will be of value to teachers, hydroponic growers and hobbyists as well as professional biologists and engineers in providing an understanding of the importance of how to control the many different factors involved in the operation of chambers for growing plants.

Contents Radiation, John C. Sager and J. Craig McFarlane Temperature, Peter R. Hinklenton and Royal D. Heins Humidity, L. Arthur Spomer and Theodore W. Tibbitts Carbon Dioxide, Mary M. Peet and Donald T. Krizek Air Contaminants, Theodore W. Tibbitts Air Movement, Robert J. Downs and Donald T. Krizek Plant Culture in Solid Media, L. Arthur Spomer, Wade L. Berry and Theodore W. Tibbitts Plant Culture in Hydroponics, Wade L. Berry and Sharon Knight Plant Physiological Disorders, Robert C. Morrow and R.M. Wheeler Pests and Diseases, John P. Sanderson and R. Kenneth Horst Special Use Chambers, J. Craig McFarlane, Robert C. Morrow, Douglas P. Ormrod and Steven H. Schwartzkoff Chamber Maintenance, Robert W. Langhans and Theodore W. Tibbitts Experimental Design, P. Allen Hammer and Douglas A. Hopper Writing Chamber Specifications, William W. Wade, William A. Bailey and Herschel H. Klueter Guidelines for Measurement and Reporting of Environmental Conditions, Donald T. Krizek, John C. Sager and Theodore W. Tibbitts Crop Growth Requirements, Douglas A. Hopper, Gary W. Stutte, Ann McCormack, Donald J. Barta, Royal D. Heins, John E. Erwin and Theodore W. Tibbitts

Ordering - to order a copy of this book, visit the Iowa State University Extension website (http://www.extension.iastate.edu/pubs/Order.html). Hint - Use the "search" tool in the upper right corner and request "SR 0099" or "Plant Growth Chamber Handbook" Plant Growth Chamber Handbook. 240 pages. Feb. 1997. Published as Iowa Agriculture and Home Economics Experiment Station Special Report No. 99 (SR-99) and North Central Regional Research Publication No. 340. ISSN:0361-199X.