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Publication Type:
| Refereed |
Author(s): | Harker, Neil K.;
Dekker, Jack |
Author Affiliation: | Crop Science Department, Univ. Guelph |
Title: | Temperature Effects on Translocation Patterns of Several Herbicides within Quackgrass (Apropyron repens) |
Source: | Weed Science. Vol. 36, No. 5, September 1988, p. 545-552. |
Publishing Information: | Champaign, IL: Weed Science Society of America |
Keywords: | TIC Keywords: Elymus repens; Rhizomes; Buds; Sucrose; Glyphosate; Sethoxydim; Cloproxydim; Fluazifop; Haloxyfop; Quizalofop; Graminicide
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Abstract/Contents: | "A growth cabinet study was conducted to evaluate the effect of temperature on the distribution of several herbicides in quackgrass. Uniformly labeled 14C-sucrose and the radiolabeled herbicides glyphosate, sethoxydim, cloproxydim, the butyl ester of quizalofop were applied to quackgrass grown at three day/night temperature regimes (10/5, 20/15, and 30/25 C). Seven days after treatment the plants were harvested, lyophilized, and later sectioned, mapped, and oxidized in preparation for 14C quantification. Quackgrass rhizome growth was more vigorous at 20/15 than 30/25 or 10/5 C. Of the herbicides tested, haloxyfop was the most inhibitory to rhizome growth. Temperature increases from 10/5 to 20/15 or from 20/15 to 30/25 C resulted in more translocation to rhizomes depending on the chemical applied. At all three temperature regimes, more 14C was recovered from distal and basal buds of plants treated with 14C-sethoxydim. In contrast, at all three temperature regimes, similar amounts of 14C were recovered from the distal and basal buds of plants treated with 14C-sucrose." |
Language: | English |
References: | 23 |
Note: | Pictures Figures Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Harker, N. K., and J. Dekker. 1988. Temperature Effects on Translocation Patterns of Several Herbicides within Quackgrass (Apropyron repens). Weed Sci. 36(5):p. 545-552. |
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