Full TGIF Record # 23231
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Cranmer, John R.; Linscotti, Dean L.
Author Affiliation:Former Grad. Res. Assoc., Cornell Univ. and Lead Sci. and Prof., Agric. Res. Ser., U.S. Dep. Agric., Cornell University
Title:Effects of droplet composition on glyphosate absorption and translocation in velvetleaf (Abutilon theophrasti)
Source:Weed Science. Vol. 39, No. 2, April-June 1991, p. 251-254.
Publishing Information:Champaign, IL: Weed Science Society of America
Keywords:TIC Keywords: Glyphosate; Postemergence herbicides; Weeds; Weed control
Abstract/Contents:"In laboratory studies, absorption and translocation of glyphosate in velvetleaf was dependent on the concentration of both glyphosate and surfactant in the applied droplet(s). At equivalent total quantities applied, absorption by leaves was greater with concentrated droplets than with more dilute droplets in greater number. Increasing the surfactant concentration increased the relative absorption of dilute gylphosate droplets but did not overcome the negative effect of higher droplet number on total amount absorbed. More glyphosate was translocated from concentrated versus the most dilute droplets at equivalent total quantity applied. Conversely, more absorbed glyphosate from dilute droplet applications remained in the treated leaves. About 90% of translocated 14C glyphosate from the most concentrated drops was distributed evenly between roots and shoot tissue above the treated leaf and the remainder in shoot tissue below the treated leaf. As droplet number increased and surfactant concentration decreased, the relative amount of glyphosate distributed in roots declined in relation to shoots."
Language:English
References:23
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Cranmer, J. R., and D. L. Linscotti. 1991. Effects of droplet composition on glyphosate absorption and translocation in velvetleaf (Abutilon theophrasti). Weed Sci. 39(2):p. 251-254.
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