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Clinorotation affects soybean seedling morphologyAlthough spaceflight does not appear to significantly affect seed germination, it can influence subsequent plant growth. On STS-3 and SL-2, decreased growth (measured as plant length, fresh weight, and dry weight) was noted for pine, oat, and mung bean. In the CHROMEX-01 and 02 experiments with Haplopappus and in the CHROMEX-03 experiment with Arabidopsis, enhanced root growth was noted in the space-grown plants. In the CHROMEX-04 experiments with wheat, both leaf fresh weight and leaf area were diminished in the space-grown plants but there was no difference in total plant height (CS Brown, HG Levine, and AD Krikorian, unpublished data). These data suggest that microgravity impacts growth by whole plant partitioning of the assimilates. The objective of the present study was to determine the influence of clinorotation on the growth and the morphology of soybean seedlings grown in the Biological Research In Canister (BRIC) flight hardware. This experiment provided baseline data for a spaceflight experiment (BRIC-3) flown on STS-63 (February 3-11, 1995).
Document ID
19960021734
Acquisition Source
Kennedy Space Center
Document Type
Conference Paper
Authors
Hilaire, Emmanuel
(Kansas State Univ. Manhattan, KS United States)
Guikema, James A.
(Kansas State Univ. Manhattan, KS United States)
Brown, Christopher S.
(Dynamac Corp. Cocoa Beach, FL United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1995
Publication Information
Publication: Journal of Gravitational Physiology, Volume 2, No. 1
Subject Category
Life Sciences (General)
Accession Number
96N25009
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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