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Transpiration during life cycle in controlled wheat growthA previously-developed model of wheat growth, designed for convenient incorporation into system-level models of advanced space life support systems is described. The model is applied to data from an experiment that grew wheat under controlled conditions and measured fresh biomass and cumulated transpiration as a function of time. The adequacy of modeling the transpiration as proportional to the inedible biomass, and an age factor which varies during the life cycle, are examined. Results indicate that during the main phase of vegetative growth in the first half of the life cycle, the rate of transpiration per unit mass of inedible biomass is more than double the rate during the phase of grain development and maturation during latter half of the life cycle.
Document ID
19900028377
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Volk, Tyler
(New York University NY, United States)
Rummel, John D.
(NASA Headquarters Washington, DC United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Natural and Artificial Ecosystems, Espoo, Finland, July 18-29, 1988) Advances in Space Research
ISSN: 0273-1177
Subject Category
Man/System Technology And Life Support
Accession Number
90A15432
Funding Number(s)
CONTRACT_GRANT: NCA2-101
Distribution Limits
Public
Copyright
Other

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