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Bas 9052 Effects on Leaf Photosynthesis and Growth

Published online by Cambridge University Press:  12 June 2017

David R. Gealy  and
Fred W. Slife
David R. Gealy
Affiliation:
Dep. Agron., Univ. of Illinois, Urbana, IL 61801
Fred W. Slife
Affiliation:
Dep. Agron., Univ. of Illinois, Urbana, IL 61801
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Abstract

BAS 9052 {2-[1-(ethoxyimino)-butyl]-5-[2-(ethylthio)-propyl]-3-hydroxy-2-cyclohexene-1-one} and difenopenten {4-[4-[4-(trifluoromethyl)phenoxy]phenoxy]-2-pentenoic acid} concentrations less than 1% (w/w) did not normally inhibit apparent photosynthesis (AP) of corn (Zea mays L. ‘Mo 17 × B73′) leaves for at least 24 h. However, leaf growth was completely inhibited by BAS 9052 within 24 h. Leaf AP was initially more inhibited in soybean (Glycine max L. ‘Corsoy’) than in corn by each herbicide, but within 48 h soybean AP was usually recovering and plants grew normally. Because inhibition of corn leaf growth preceded that of AP, leaf photosynthesis could not be a primary mode of action for BAS 9052.

Keywords

Zea maysGlycine maxdifenopenten
Type
Research Article
Information
Weed Science , Volume 31 , Issue 4 , July 1983 , pp. 457 - 461
Copyright
Copyright © 1983 Weed Science Society of America 

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References

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