Studies in Plant Metabolism. IV. Comparative Effects of 2,4-Dichlorophenoxyacetic Acid and Other Plant Growth Regulators on Phosphorus Metabolism in Bean Plants.

Fang, Sheng; Butts, Joseph S.

doi:10.1104/pp.29.4.365

Cited by 14 publications

(6 citation statements)

References 8 publications

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“…The cause of this apparent increased and selective phytotoxicity of the combination, compared to the phytotoxic effect of the individual herbicides, is not known. Certain herbi cides influence the uptake of particular mineral elements (6,7,8,14,15). Therefore, one of the factors related to phytotoxicity of the combination may be a modifica tion of copper uptake by diquat.…”

Section: Introductionmentioning

confidence: 99%

“…The extensive root pruning ob served during repeated, deep, close mechanical culti vations suggests that avoidance of such cultivations by the use of effective preemergence herbicide treatments should be beneficial to sweet corn in seasons of severe drought. effective as preemergence treatments in sweet corn plant ings (1,3,4,5,6,7). We conducted the research described herein, there fore, to determine the effects of hand-weeding, mechani cal cultivation, atrazine herbicide treatments, and various combinations of these in sweet corn plantings.…”

Section: Introduction I Nmentioning

confidence: 99%

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Effect of Diquat on Uptake of Copper in Aquatic Plants

Sutton¹,

Weldon²,

Blackburn³

1970

Weed sci.

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Combinations of copper sulfate pentahydrate (hereinafter referred to as CSP) at 1.0 ppmw copper plus 0.1 to 2.0 ppmw 6,7-dihydrodipyrido-(1,2-a:2′,1′-c)pyrazinediium ion (diquat) resulted in higher accumulations of copper in hydrilla (Hydrilla verticillata Casp.), egeria (Egeria densa Planch.), and southern naiad (Najas guadalupensis Spreng. Magnus) when compared to plants which received only CSP. A contact period greater than 24 hr was necessary before the higher amounts of copper were detected in those plants treated with the combinations. Water samples from outdoor, plastic pools 7 days after treatment with CSP at 1.0 ppmw of copper plus 1.0 ppmw of diquat contained 25% less copper than pools treated with CSP. Samples of hydrilla and southern naiad removed 7 days after treatment of the pools with the combination contained 77 and 38% more copper, respectively, than samples from those pools treated with only CSP.

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Section: Introductionmentioning

confidence: 99%

Section: Introduction I Nmentioning

confidence: 99%

Effect of Diquat on Uptake of Copper in Aquatic Plants

Sutton¹,

Weldon²,

Blackburn³

1970

Weed sci.

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“…In the leaves of young cranberry bean plants treated with 2,4-D (14), acid soluble, alcohol soluble and nucleic acid phosphorus were lowered somewhat in the leaves, but nucleic acid phosphorus was doubled in the stems. In studies of phosphorus uptake by bean plants (6). leaves of plants gr6wn in solution culture containing p32 after 2,4-D treatment picked up less phosphorus than the controls.…”

mentioning

confidence: 99%

Phosphorus Metabolism of Trifolium Hirtum All. As Affected by 2,4-Dichlorophenoxyacetic Acid and Gibberellic Acid

Ormrod

Williams

1960

Plant Physiol.

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“…Results with the combination of CSP and 2,4-D agree with other studies (Wolfeia/., 1950;Fang & Butts, 1954), which show that certain concentrations of 2,4-D may stimulate the uptake of some mineral elements. After application of 100 ppmw of 2,4-D to bean {Phaseolus vulgaris L. cv.…”

Section: Resultsmentioning

confidence: 98%

Influence of Herbicides on the Uptake of Copper in Hydrilla*

1971

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Combinations of copper sulphate pentahydrate (GSP) at 1 -0 ppmw of copper with diquat, paraquat, ametryne, atrazine, terbutryne or 2,4-D at certain concentrations and contact times increased the copper content in hydrilla {Hydrilla verticillata Gasp.) in comparison with CSP alone. Combinations of CSP with fenac, dichlobenil, diuron, an amine salt of endothal or dinitrophenol had no effect on copper uptake. CSP plus 1 -0 ppmw of ametryne exhibited a synergistic response on hydrilla as determined by dry weight, and was associated with a high concentration of copper. Phosphorus levels in hydrilla were reduced by diquat and paraquat. Hydrilla treated with CSP plus 0-1 ppmw of paraquat contained 32-4% less phosphorus than plants treated with paraquat alone. The phytotoxic effect of certain of these combinations on hydrilla may be due principally to an increased accumulation of copper and a reduction in phosphorus content. Influence des herbicides sur l'absorption du cuivre par I'hydrillaResum^. Des associations de sulfate de cuivre pentahydrate (SCP) k raison de 1 ppm (en poids) de cuivre avec du diquat, du paraquat, de l'am^tryne, de I'atrazine, de la terbutryne ou du 2,4-D a diverses concentrations et pendant des dur^es de contact variees, ont accru la teneur en cuivre de I'hydrilla {Hydrilla verticillata Casp.) par rapport au SCP employ^ seul. Des associations de SCP avec du f^nac, du dichlobenil, du diuron, un sei d'amine de I'endothal ou du dinitroph^nol n'eurent pas d'effet sur l'absorption du cuivre. Le SCP plus 1,0 ppm (en poids) d'am^tryne manifesterent sur hydrilla une action synerg^tique, ^valu^e en mesurant le poids sec, et furent assocife a une concentration en cuivre eiev^e. La teneur en phosphore de I'hydrilla fut r^duite par le diquat et le paraquat. L'hydrilla trait6 avec le SCP plus 0,1 ppm (en poids) de paraquat contenant 32,4% de moins de phosphore que les plantes trait^es avec du paraquat seul. L'effet phytotoxique de certaines de ces associations sur I'hydrilla pourrait etre du principalement a une accumulation plus abondante du cuivre accompagnte d'une reduction du phosphore. Der Einfluss von Herbiziden auf die Kupferaufnahme durch Hydrilla verticillata Zusammenfassung. Kombinationen von Kupfersulfat-5-hydrat in einer Konzentration von 1,0 ppm (Gewicht) mit Diquat, Paraquat, Ametryn, Atrazin, Terbutryn oder 2,4-D bewirkten bei bestimmten Konzentrationen und Einwirkungszeiten eine Erhohung des Kupfergehaltes von Hydrilla verticillata Casp. im Vergleich zu der Behandlung mit Kupfersulfat-5-hydrat alleine. Kombinationen von Kupfersulfat-5-hydrat mit Fenac, Dichlobenil, Diuron, einem Ammoniumsalz von Endothal oder Dinitrophenol hatten keinen Einfluss auf die Kupferaufnahme. Die Kombination von Kupfersulfat-5-hydrat mit 1,0 ppm (Gewicht) Ametryn zeigte eine synergistische Wirkung auf Hydrilla verticillata, wie die Bestimmung der Trockenmasse ergab, und war von einer hohen Kupferkonzentration begleitet. Diquat und Paraquat erniedrigten den Phosphorgehalt. Pflanzen, die KupfersuIfat-5-hydrat kombiniert...

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Studies in Plant Metabolism. IV. Comparative Effects of 2,4-Dichlorophenoxyacetic Acid and Other Plant Growth Regulators on Phosphorus Metabolism in Bean Plants.

Cited by 14 publications

References 8 publications

Effect of Diquat on Uptake of Copper in Aquatic Plants

Effect of Diquat on Uptake of Copper in Aquatic Plants

Phosphorus Metabolism of Trifolium Hirtum All. As Affected by 2,4-Dichlorophenoxyacetic Acid and Gibberellic Acid

Influence of Herbicides on the Uptake of Copper in Hydrilla*

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