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Candidate Species Selection and Controlled Environment InjuriesResearch was undertaken to attempt to identify the causal agents for intumescences that develop on many different species of plants in controlled environments. Concentration and filtration procedures were not successful in identifying any particular compounds. The injury was found to develop, even though the atmosphere for the plants is filtered through activated charcoal, potassium permanganate, or is subjected to catalytic combustion at 450 C. Thus, the causal agent is apparently either an oxidized compound or specific element, or the result of some unrecognized variation in physical conditions around the plants. The research has demonstrated that the injury is controlled to a significant extent by temperature. Growing temperatures of 20 degrees and 25 degrees C resulted in serious injury on plants, but temperatures of 30 C resulted in very little injury.
Document ID
19830021752
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tibbitts, T. W.
(Wisconsin Univ. Madison, WI, United States)
Date Acquired
August 11, 2013
Publication Date
December 1, 1982
Publication Information
Publication: NASA. Ames Research Center Controlled Ecol. Life Support System
Subject Category
Life Sciences (General)
Accession Number
83N30023
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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