Full TGIF Record # 6879
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Web URL(s):http://www.jstor.org/stable/4043416
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Publication Type:
i
Refereed
Author(s):McWhorter, C. G.
Author Affiliation:Plant Physiol., South. Weed Sci. Lab., Agric. Res., Sci. Ed. Admin., U.S. Dep. Agric., Stoneville, MS
Title:Effect of temperature and relative humidity on translocation of 14C-metriflufen in johnsongrass (Sorghum halepense) and soybean (Glycine max)
Source:Weed Science. Vol. 29, No. 1, January 1981, p. 87-93.
Publishing Information:Champaign, IL: Weed Science Society of America
# of Pages:7
Related Web URL:http://www.jstor.org/stable/info/4043416
    Last checked: 11/18/2013
    Notes: Abstract only
Keywords:TIC Keywords: Sorghum halepense; Temperatures; Humidity; Translocation; Metriflufen; Environment; Weed control; Absorption; Herbicides
Abstract/Contents:"Absorption and translocation of 14C-metriflufen {2-[4-(4- trifluoromethylphenoxy)phenoxy]propanoic acid} in johnsongrass [Sorghum halepense (L.) Pers.] and soybean [Glycine max (L.) Merr. 'Lee 68'] were evaluated under different environmental conditions. At 40% relative humidity (RH), an increase in air temperature from 18 to 35 C increased translocation of the 14C in johnsongrass more than four-fold following application of 14C-metriflufen to an area on the third leaf. At 100% RH, translocation of the 14C was twice as great at 27C as at 18C, but translocation at 35C was intermediate. In the combined analysis, translocation in johnsongrass was no better at 100% RH than at 40% RH. Regardless of level of RH, most translocation in johnsongrass at 18 and 27 C was toward the distal half of the treated leaf, but at 35 C most translocation was toward the proximal half of the treated leaf. Translocation of 14C in soybeans increased more than four-fold as air temperature was increased from 18 C to 35 C, and more translocation occurred at 100% RH than at 40% RH at 18, 27, and 35C. More than 80% of the 14C-metriflufen remained in the treated leaf or on the surface of treated soybean leaves 48 hours after application. More of the applied radioactivity was recovered from soybean plants than from johnsongrass plants."
Language:English
References:14
Note:Pictures, b/w
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McWhorter, C. G. 1981. Effect of temperature and relative humidity on translocation of 14C-metriflufen in johnsongrass (Sorghum halepense) and soybean (Glycine max). Weed Sci. 29(1):p. 87-93.
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Web URL(s):
http://www.jstor.org/stable/4043416
    Last checked: 11/18/2013
    Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/pdfplus/4043416.pdf
    Last checked: 11/18/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: SB 610 .W38
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