scholarly journals Photosynthesis and photorespiration in soybean [Glycine max(L.) Merr.] chronically exposed to elevated carbon dioxide and ozone

1997 ◽  
Vol 48 (10) ◽  
pp. 1843-1852 ◽  
Author(s):  
Fitzgerald L. Booker ◽  
Chantal D. Reid ◽  
Sabine Brunschön-Harti ◽  
Edwin L. Fiscus ◽  
Joseph E. Miller
Keyword(s):  
Carbon Dioxide ◽  
Glycine Max ◽  
Elevated Carbon Dioxide ◽  
Glycine Max L

CARBON DIOXIDE EXCHANGE RATES OF FRUITING SOYBEAN PLANTS EXPOSED TO OZONE AND SULPHUR DIOXIDE SINGLY OR IN COMBINATION

1984 ◽  
Vol 64 (1) ◽  
pp. 69-75 ◽  
Author(s):  
N. M. LE SUEUR-BRYMER ◽  
D. P. ORMROD
Keyword(s):  
Carbon Dioxide ◽  
Glycine Max ◽  
Exchange Rates ◽  
Sulphur Dioxide ◽  
Net Photosynthesis ◽  
Exposure Period ◽  
Carbon Dioxide Exchange ◽  
Continuous Stirred Tank Reactor ◽  
Glycine Max L ◽  
Soybean Plants

Carbon dioxide exchange rates (CER) of intact soybean (Glycine max (L.) Merr.) plants at the fruiting stage were measured in continuous stirred tank reactor (CSTR) chambers. Plants were exposed to clean air, 67 ppb ozone (O3), 300 ppb sulphur dioxide (SO2), or 67 ppb O3 plus 300 ppb SO2 for 7.5 h∙day−1 for 5 days. Carbon dioxide exchange rates were measured hourly during the last 6 h of each exposure period and decreased progressively during the first period of exposure to O3 plus SO2, dropping in hour 6 to 42% of the hour 1 rate, and to a lesser extent in the second daily exposure when the corresponding decline was to 70%. There was a declining trend in CER of SO2-treated but not O3-treated plants with increasing number of days of exposure. Carbon dioxide exchange rates of all plants generally peaked and declined during each exposure period.Key words: Air pollution, net photosynthesis, mixtures, Glycine max

Supraoptimal Carbon Dioxide Effects on Growth of Soybean [Glycine max (L.) Merr.]

1993 ◽  
Vol 142 (2) ◽  
pp. 173-178 ◽  
Author(s):  
R.M. Wheeler ◽  
C.L. Mackowiak ◽  
L.M. Siegriest ◽  
J.C. Sager
Keyword(s):  
Carbon Dioxide ◽  
Glycine Max ◽  
Glycine Max L
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