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Effect of crop development on biogenic emissions from plant populations grown in closed plant growth chambersThe Biomass Production Chamber at John F. Kennedy Space Center is a closed plant growth chamber facility that can be used to monitor the level of biogenic emissions from large populations of plants throughout their entire growth cycle. The head space atmosphere of a 26-day-old lettuce (Lactuca sativa cv. Waldmann's Green) stand was repeatedly sampled and emissions identified and quantified using GC-mass spectrometry. Concentrations of dimethyl sulphide, carbon disulphide, alpha-pinene, furan and 2-methylfuran were not significantly different throughout the day; whereas, isoprene showed significant differences in concentration between samples collected in light and dark periods. Volatile organic compounds from the atmosphere of wheat (Triticum aestivum cv. Yecora Rojo) were analysed and quantified from planting to maturity. Volatile plant-derived compounds included 1-butanol, 2-ethyl-1-hexanol, nonanal, benzaldehyde, tetramethylurea, tetramethylthiourea, 2-methylfuran and 3-methylfuran. Concentrations of volatiles were determined during seedling establishment, vegetative growth, anthesis, grain fill and senescence and found to vary depending on the developmental stage. Atmospheric concentrations of benzaldehyde and nonanal were highest during anthesis, 2-methylfuran and 3-methylfuran concentrations were greatest during grain fill, and the concentration of the tetramethylurea peaked during senescence.
Document ID
20050000161
Document Type
Reprint (Version printed in journal)
Authors
Batten, J. H.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Stutte, G. W.
Wheeler, R. M.
Date Acquired
August 22, 2013
Publication Date
August 1, 1995
Publication Information
Publication: Phytochemistry
Volume: 39
Issue: 6
ISSN: 0031-9422
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
NASA Program CELSS
NASA Discipline Life Support Systems
NASA Discipline Number 61-20
NASA Center KSC
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