Document Detail


Adaptive environmental control for optimal results during plant microgravity experiments.
MedLine Citation:
PMID:  12583386     Owner:  NASA     Status:  MEDLINE    
Abstract/OtherAbstract:
The SVET Space Greenhouse (SG)--the first and the only automated plant growth facility onboard the MIR Space Station in the period 1990-2000 was developed on a Russian-Bulgarian Project in the 80s. The aim was to study plant growth under microgravity in order to include plants as a link of future Biological Life Support Systems for the long-term manned space missions. An American developed Gas Exchange Measurement System (GEMS) was added to the existing SVET SG equipment in 1995 to monitor more environmental and physiological parameters. A lot of long-duration plant flight experiments were carried out in the SVET+GEMS. They led to significant results in the Fundamental Gravitational Biology field--second-generation wheat seeds were produced in the conditions of microgravity. The new International Space Station (ISS) will provide a perfect opportunity for conducting full life cycle plant experiments in microgravity, including measurement of more vital plant parameters, during the next 15-20 years. Nowadays plant growth facilities for scientific research based on the SVET SG functional principles are developed for the ISS by different countries (Russia, USA, Italy, Japan, etc.). A new Concept for an advanced SVET-3 Space Greenhouse for the ISS, based on the Bulgarian experience and "know-how" is described. The absolute and differential plant chamber air parameters and some plant physiological parameters are measured and processed in real time. Using the transpiration and photosynthesis measurement data the Control Unit evaluates the plant status and performs adaptive environmental control in order to provide the most favorable conditions for plant growth at every stage of plant development in experiments. A conceptual block-diagram of the SVET-3 SG is presented.
Authors:
P Kostov; T Ivanova; I Dandolov; S Sapunova; I Ilieva
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta astronautica     Volume:  51     ISSN:  0094-5765     ISO Abbreviation:  Acta Astronaut     Publication Date:    2002 Jul-Nov
Date Detail:
Created Date:  2003-02-12     Completed Date:  2003-05-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9890631     Medline TA:  Acta Astronaut     Country:  England    
Other Details:
Languages:  eng     Pagination:  213-20     Citation Subset:  S    
Copyright Information:
c2002 International Astronautical Federation. Published by Elsevier Science Ltd. All rights reserved.
Affiliation:
Space Research Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria. plamen_kostov@mail.space.bas.bg
Space Flight Mission:
Flight Experiment; Mir Project; long duration; manned
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MeSH Terms
Descriptor/Qualifier:
Brassica / growth & development
Bulgaria
Ecological Systems, Closed*
Environment, Controlled*
International Cooperation
Life Support Systems / instrumentation*
Plants, Edible / growth & development*
Russia
Space Flight / instrumentation*,  trends
Spacecraft
Triticum / growth & development
United States
Vegetables / growth & development
Weightlessness*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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