Picloram Enhances 2,4-D Movement in Field Bindweed

Agbakoba, Chuma S. O.; Goodin, J. R.

doi:10.1017/s0043174500077250

Cited by 15 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Agbakoba and Goodin (1970) also observed even distribution of 14 C-2, 4-D in field bindweed apical meristem and root tissue, similar to aminocyclopyrachlor. Much higher accumulation of 14 C-picloram in the apical meristems was found compared with the roots (Agbakoda and Goodin 1970). However, radioactivity was reported as the specific activity for each plant part on a fresh weight basis, so again, direct comparisons with the aminocyclopyrachlor translocation data from this study are difficult to make.…”

Section: Resultsmentioning

confidence: 67%

Aminocyclopyrachlor Absorption, Translocation and Metabolism in Field Bindweed (Convolvulus arvensis)

et al. 2013

View full text Add to dashboard Cite

Field bindweed is extremely susceptible to aminocyclopyrachlor compared to other weed species. Laboratory studies were conducted to determine if absorption, translocation, and metabolism of aminocyclopyrachlor in field bindweed differs from other, less susceptible species. Field bindweed plants were treated with 3.3 kBq14C-aminocyclopyrachlor by spotting a single leaf mid-way up the stem with 10 µl of herbicide solution. Plants were then harvested at set intervals over 192 h after treatment (HAT). Aminocyclopyrachlor absorption reached a maximum of 48.3% of the applied radioactivity by 48 HAT. A translocation pattern of herbicide movement from the treated leaf into other plant tissues emerged, revealing a nearly equal aminocyclopyrachlor distribution between the treated leaf, aboveground tissue, and belowground tissue of 13, 14, and 14% of the applied radioactivity by 192 HAT. Over the time-course, no soluble aminocyclopyrachlor metabolites were observed, but there was an increase in radioactivity recovered bound in the nonsoluble fraction. These results suggest that aminocyclopyrachlor has greater translocation to belowground plant tissue in field bindweed compared with results from other studies with other herbicides and other weed species, which could explain the increased level of control observed in the field. The lack of soluble metabolites also suggests that very little metabolism occurred over the 192 h time course.

show abstract

Section: Resultsmentioning

confidence: 67%

Aminocyclopyrachlor Absorption, Translocation and Metabolism in Field Bindweed (Convolvulus arvensis)

et al. 2013

View full text Add to dashboard Cite

show abstract

“…With intact plants absorption of 2,4-D was slightly enhanced by dicamba, while absorption of dicamba was stimulated in one experiment but not another. Agbakoba & Goodin (1970) found that absorption of 2,4-D was not affected by picloram but the uptake of picloram was reduced by 2,4-D in field bindweed (Convolvulus arvensis).…”

Section: Additivesmentioning

confidence: 94%

“…Long & Basler (1974) have also reported that 2,4,5-T enhances the translocation of 2,4-D in beans {Phaseolus vulgaris) and that 2,4-D does not promote the translocation of 2,4,5-T. The interaction between picloram and 2,4-D in field bindweed {Convolvulus arvensis) was examined by Agbakoba & Goodin (1970). They found that picloram increased the amount of 2,4-D translocated to untreated parts ofthe plant, while 2,4-D had no effect on overall picloram translocation.…”

Section: Additivesmentioning

confidence: 99%

A review of foliar absorption and translocation of 2,4‐D and 2,4,5‐T

Richardson¹

1977

Weed Research

View full text Add to dashboard Cite

Summary: This review is restricted to an examination of the literature on the environmental and chemical factors that affect foliar absorption and translocation of 2,4‐dichlorophenoxyacetic acid (2,4‐D) and 2,4,5‐trichloro‐phenoxyacetic acid (2,4,5‐T) by plants. Most of the papers covered by this review have been published since 1965. Earlier works have been reviewed elsewhere by other authors (Currier & Dybing, 1959; Sargent, 1965; Franke, 1967; Robertson & Kirkwood, 1969; Hull, 1970). Often absorption and translocation of herbicides are considered together; here the two will be considered separately wherever possible.

show abstract

“…Binning, Penner, and Meggitt (1971) found that a 7-day pretreatment with the ethylene-releasing compound, 2chloroethylphosphonic acid, enhanced basipetal transport of l4C-dicamba in wild garlic. Agbakoba and Goodin (1970) reported the effect of picloram on transport of 2,4-D in field bindweed; transport to the roots was not affected but picloram did appear to enhance upward movement of 2,4-D in the shoots. Although synergistic effects of combinations of herbicides are known, enhanced toxicity has not yet been shown to be a result of enhanced transport to the roots.…”

mentioning

confidence: 97%

Effect of Picloram on Transport in Young Bean, Mesquite, and Huisache Plants

Leonard

Glenn

Bayer

1972

American J of Botany

View full text Add to dashboard Cite

The effect of 4‐amino,3,5,6‐trichloropicolinic acid (picloram) on transport from leaves to the roots was studied using young bean (Phaseolus vulgaris L.), mesquite (Prosopis juliflora var. velutina (Woot.) Sarg.), and huisache (Acacia farnesiana (L) Willd.) plants. The only picloram treatments which were effective in enhancing transport of 14C‐assimilate or 14C‐picloram to the roots were those made to the shoots or roots one day or more before application of the label to the shoots. The enhancement of transport was not evident when un‐labeled picloram or 2,4,5‐trichlorophenoxyacetic acid (2,4,5‐T), or both, were applied at the same time as the 14C‐label. Enhancement of transport was to the more mature stem or root tissues. Inorganic nitrogen applied to nitrogen‐deficient bean plants also increased transport of 14C‐assimilate to the roots, especially the rate.

show abstract

Picloram Enhances 2,4-D Movement in Field Bindweed

Cited by 15 publications

References 7 publications

Aminocyclopyrachlor Absorption, Translocation and Metabolism in Field Bindweed (Convolvulus arvensis)

Aminocyclopyrachlor Absorption, Translocation and Metabolism in Field Bindweed (Convolvulus arvensis)

A review of foliar absorption and translocation of 2,4‐D and 2,4,5‐T

Effect of Picloram on Transport in Young Bean, Mesquite, and Huisache Plants

Contact Info

Product

Resources

About