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Absorption and Translocation of Sethoxydim with Additives

Published online by Cambridge University Press:  12 June 2017

John D. Nalewaja  and
Grzegorz A. Skrzypczak
John D. Nalewaja
Affiliation:
Agron. Dep., North Dakota State Univ., Fargo, ND
Grzegorz A. Skrzypczak
Affiliation:
Akademia Rolnicza, ul. Mazowiecka 45/46, 60–623 Poznan 31, Poland
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Abstract

Experiments were conducted to determine 14C absorption and translocation by oat (Avena sativa L. ‘Lyon’) foliarly treated with 14C-sethoxydim {(2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one)} and various additives. Safflower (Carthamus tinctorius L.), soybean [Glycine max (L.) Merr.], linseed (Linum usitatissimum L.), and sunflower (Helianthus annuus L.) oil all similarly increased foliar absorption and translocation of 14C more than palm oil (Elaeis quineensis Jacq.) but less than petroleum oil, when applied without an emulsifier. An emulsifier in the oil additive tended to enhance 14C absorption and translocation more in soybean oil than petroleum oil so that 14C absorption and translocation were similar with both oils containing emulsifiers. Absorption and translocation of 14C tended to increase more with an increase in emulsifier concentration in soybean oil than in petroleum oil but not beyond 15% with either oil. Percentage of 14C absorbed and translocated from 14C-sethoxydim applied to oats increased as the amount of soybean oil applied increased from 2.3 to 4.6 L/ha, but the increase was less for sethoxydim at 0.87 kg ai/ha than at 0.03 or 0.17 kg ai/ha.

Keywords

Wetting agentsurfactantadjuvantcrop oilsAvena sativa
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 34 , Issue 5 , September 1986 , pp. 657 - 663
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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