Elevated CO2enhances photosynthetic efficiency, ion uptake and antioxidant activity ofGynura bicolorDC. grown in a porous-tube nutrient delivery system under simulated microgravity

Plant Biology ◽  
2016 ◽  
Vol 18 (3) ◽  
pp. 391-399 ◽  
Author(s):  
M. Wang ◽  
H. Liu ◽  
C. Dong ◽  
Y. Fu ◽  
H. Liu

2000 ◽  
Vol 10 (1) ◽  
pp. 179-185 ◽  
Author(s):  
D. Marshall Porterfield ◽  
Mary E. Musgrave ◽  
Thomas W. Dreschel

A ground-based comparison of plant nutrient delivery systems that have been developed for microgravity application was conducted for dwarf wheat (Triticum aestivum L. `Yecora Rojo') and rapid-cycling brassica (Brassica rapa L. CrGC#1-33) plants. These experiments offer insight into nutrient and oxygen delivery concerns for greenhouse crop production systems. The experiments were completed over a 12-day period to simulate a typical space shuttle-based spaceflight experiment. The plant materials, grown either using the porous-tube nutrient delivery system, the phenolic foam support system, or a solidified agar nutrient medium, were compared by plant-growth analysis, root zone morphological measurements, elemental composition analysis, and alcohol dehydrogenase enzyme activity assay. The results of these analyses indicate that the porous tube plant nutrient delivery and the phenolic foam systems maintain plant growth at a higher level than the solidified agar gel medium system. Root zone oxygenation problems associated with the agar system were manifested through biochemical and morphological responses. The porous tube nutrient delivery system outperformed the other two systems on the basis of plant growth analysis parameters and physiological indicators of root zone aeration. This information is applicable to the current crop production techniques used in greenhouse-controlled environments.







1994 ◽  
Vol 14 (11) ◽  
pp. 47-51 ◽  
Author(s):  
T.W. Dreschel ◽  
C.S. Brown ◽  
W.C. Piastuch ◽  
C.R. Hinkle ◽  
W.M. Knott


1996 ◽  
Vol 18 (4-5) ◽  
pp. 243-249 ◽  
Author(s):  
R.J. Bula ◽  
R.C. Morrow ◽  
T.W. Tibbitts


2002 ◽  
Author(s):  
M. G. Lefsrud ◽  
B. Ohneck ◽  
D. E. Kopsell ◽  
T. W. Dreschel


1992 ◽  
Author(s):  
R. C. Morrow ◽  
R. J. Bula ◽  
T. W. Tibbitts ◽  
W. R. Dinauer


2005 ◽  
Author(s):  
T. W. Dreschel ◽  
C. R. Hall ◽  
T. E. Foster ◽  
M. Salganic ◽  
L. Warren ◽  
...  


2009 ◽  
Author(s):  
Scott J. Montain ◽  
Susan J. McGraw ◽  
Matther R. Ely ◽  
Frederick Dupont ◽  
William J. Tharion


HortScience ◽  
1992 ◽  
Vol 27 (11) ◽  
pp. 1183-1185 ◽  
Author(s):  
Christopher S. Brown ◽  
William M. Cox ◽  
Thomas W. Dreschel ◽  
Peter V. Chetirkin

A nutrient delivery system that may have applicability for growing plants in microgravity is described. The Vacuum-Operated Nutrient Delivery System (VONDS) draws nutrient solution across roots that are under a partial vacuum at ≈91 kPa. Bean (Phaseolus vulgaris L. cv. Blue Lake 274) plants grown on the VONDS had consistently greater leaf area and higher root, stem, leaf, and pod dry weights than plants grown under nonvacuum control conditions. This study demonstrates the potential applicability of the VONDS for growing plants in microgravity for space biology experimentation and/or crop production.



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