Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 September 1958
Published in Agron J 50:551-553 (1958)
© 1958 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Air Pollution With Relation to Agronomic Crops: II. A Bio-Assay Approach to the Study of Air Pollution

Wilfred M. Noble and Lloyd A. Wright1

Synopsis: Poa annua (annual blue grass) has been studied and used to determine the relative intensity of the primary phytotoxicant in the Los Angeles smog. Petunia (Rosy Morn) has been used in addition in order to increase the reliability of the diagnosis. A standard technique has been developed for the use of these materials. This method has been in continuous operation since October 1954.

1 Plant Specialist and Assistant Plant Specialist, Los Angeles County Air Pollution Control District, Los Angeles, Calif.






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Environmental Quality		 The Plant Genome
Copyright © 1958 by the American Society of Agronomy.