Record Display for the EPA National Library Catalog
RECORD NUMBER: 21 OF 42Main Title | Interspecies Variation in Terpenoid Emissions from Engelmann and Sitka Spruce Seedlings. | |||||||||||
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Author | Evans, R. C. ; Tingey, D. T. ; Gumpertz, M. L. ; | |||||||||||
CORP Author | Northrop Services, Inc., Corvallis, OR.;Corvallis Environmental Research Lab., OR. | |||||||||||
Year Published | 1985 | |||||||||||
Report Number | EPA-68-03-3124; EPA/600/J-85/212; | |||||||||||
Stock Number | PB86-118759 | |||||||||||
Additional Subjects | Plants(Botany) ; Air pollution ; Forest trees ; Temperature ; Light(Visible radiation) ; Responses ; Transpiration ; Reprints ; Emission factors ; Terpenoids ; Picea engelmannii ; Picea sitchensis ; Butadiene/methyl ; Terpenes | |||||||||||
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Collation | 13p | |||||||||||
Abstract | The variation in response of terpenoid emmissions to light and temperature were studied for two closely related spruce species, Engelmann(Picea engelmannii) and Sitka(Picea sitchensis). Isoprene was the major terpenoid emitted, accounting for approximately 75 and 69 percent of the terpenoid emissions from Engelmann and Sitka spruce, respectively. However, Sitka spruce emitted isoprene at about 1/5 the rate of Engelmann spruce. Isoprene emissions increased with light and temperature in both species, but the light response was much less in the Sitka than in the Engelmann spruce. (Copyright 1985, by the Society of American Foresters.) |