EFFECT OF VARIOUS ANIONS ON MANGANESE TOXICITY IN <i>SOLANUM TUBEROSUM</i>

Cheng, B. T.; Ouellette, G. J.

doi:10.4141/cjss68-013

Cited by 12 publications

(4 citation statements)

References 7 publications

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“…With potatoes we are particularly interested in the uptake and plant Enhanced uptake of Mn under high soil P has been demonstrated by several workers (3,4), particularly when Mn is deficient. This contrasts however, with reports of a beneficial effect of P on the incidence of Mn toxicity in potatoes (2,5). Our own field studies (Peterson and Marsh, in preparation) have shown high Mn uptake, but low Mn toxicity under high P. The present study reports on further investigations into this effect of phosphate.…”

Section: Introductioncontrasting

confidence: 83%

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Marsh

Peterson

McCown

1987

J. of Plant Nutrition

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Using standard microculture techniques for propagating potato (Solatium tuberosum), the effects of several P and Mn treatments were investigated. Foliar yields were affected by both the P and Mn content of the media, but the major change observed was in nutrient uptake. Tissue levels of P and Mn changed with their respective treatments, and over a range of levels, Mn uptake increased with an increase in phosphate.Manganese toxicity was observed in microculture. The symptoms corresponded to those reported in field studies and increased with Mn concentration but showed little dependence on phosphate levels.The microculture method confirmed results obtained in greenhouse studies and proved invaluable in studying Mn uptake. This rapid technique provides an effective means for studying young tissue in an environment which is readily controlled and easily manipulated.

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Section: Introductioncontrasting

confidence: 83%

Systems

Marsh

Peterson

McCown

1987

J. of Plant Nutrition

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“…The majority of the experimental observations indicate that the Cl-effect is observed in acidic soils (Foy, 1964;Hamilton, 1966;Cheng and Ouellette, 1968), and since liming has been shown to reduce the differential effects of the anions on Mn uptake by plants (Jackson, Westermann, and Moore, 1966), it would appear that the Cleffect is dependent upon the initial soil pH. In weakly acidic and neutral soils, the salt-associated pH decrease may not be great enough to facilitate the Mn oxide reduction by Cl-.…”

Section: Discussionmentioning

confidence: 99%

Effect of Potassium Salts on Extractable Soil Manganese

Westermann¹,

Jackson²,

Moore

1971

Soil Science Society of America Journal

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EXPERIMENTAL METHODS AND MATERIALSIncubation experiments with an acid, poorly drained soil (Typie Albaqualf) showed that the level of extractable Mn was increased by salt treatments. The relative order of the salt effect was Kb > KCI > KNO3 > K2 SO4 . Soil pH changes accounted for the majority of the KNO3 and K.,SO 4 treatment effects, but the KCI and KBr effects could not be explained an this basis. In addition, ionic strength considerations and differential biological activities were not found to be Factors influencing the K salt effects in the soil system. A hypothesis is presented to explain the KC1 or KBr effect, in which the anion would function in an oxidation-reduction reaction. This hypothesis is supported by the fact that the soil treated with KBr contained more extractable Mn than that treated with KCI, in accordance with theory. Theoretical calculations also suggested the possibility that both Cl-and Br-could reduce the lower valency Mn oxides under the experimental soil conditions.Additional Key Words for Indexing: pH effect, redox re.actions. R ESEARCH emphasis regarding Mn availability has generally been placed on those materials that cause a pronounced change in soil pH, thereby changing soil Mn availability; however, some neutral salts, KCI, NaCI (York, Bradfield, and Peech, 1954), and CaCl 2 (Foy, 1964), have increased the Mn content of plants and the exchangeable Mn levels in acidic soils (Foy, 1964). Hamilton (1966) found a positive correlation between Cl-concentration and Mn uptake by oats. The CI salts also increased the Mn content of bush beans and sweet corn more than SO4 and CO 3 salts in an acidic soil such that Mn toxicity symptoms were present in the Cl salt treatments (Jackson, Westcrmann, and Moore, 1966).The earlier study by Hamilton and Lathwell (1965) showed that Cl salts were more effective than other salts in increasing the diffusion of soluble Mn2-away from fertilizer bands of either Ca(H2 PO4 ) 2 or (NH4 ) 2 HPO4 . These salts also diminished the pH in the layer of soil around the Ca(1-1 2 PO4 ) 2 ; however, no relationship was found between the salt-associated soil pH and the amount of soluble Mn.These results indicate that the effect of Cl-on soil Mn availability is different from the effect of other anions in certain agricultural soils, The following research was conducted to determine the magnitude and mechanism(s) of the Cl-effect on the level of extractable Mn.

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“…The decrease in Ca levels associated with the higher Mn treatments has also been observed in ornamentals (Coorts 1958 Similarly, Parberry (1943) Cheng and Ouellette (1968) Berger and Gerloff (1947a) …”

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confidence: 94%

Influence of Manganese Concentration in Nutrient Solution on the Growth and Elemental Content of the "Katahdin" Potato Plant

Langille

Batteese

1974

Can. J. Plant Sci.

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Hoagland’s solutions containing nine levels of manganese ranging from 0 to 100 ppm were applied as a drench tri-weekly to potato plants (Solanum tuberosum L. cv. Katahdin) growing in perlite. Although no deficiency symptoms were observed during the 48-day growing period, varying degrees of toxicity were associated with concentrations of 25.0 ppm Mn and higher in nutrient solution. The tissue concentration necessary to induce toxicity symptoms in foliage appeared to fall between 134 and 426 ppm Mn. Solution concentrations in excess of 25 ppm Mn caused a significant reduction in dry weight of top, root and rhizome portions, and in rhizome number. Increasing Mn treatments generally influenced elemental tissue content as follows: K and Mn increased, Mg decreased, Al and Ca decreased at and above 50 ppm and 75 ppm Mn, respectively, whereas P increased at 50 ppm Mn and above; B, Cu and Mo were unaffected and although N, Fe and Zn contents were somewhat erratic, they were not significantly different at 100 ppm Mn from the control (0.50 ppm Mn).

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EFFECT OF VARIOUS ANIONS ON MANGANESE TOXICITY IN SOLANUM TUBEROSUM

Cited by 12 publications

References 7 publications

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Systems

Effect of Potassium Salts on Extractable Soil Manganese

Influence of Manganese Concentration in Nutrient Solution on the Growth and Elemental Content of the "Katahdin" Potato Plant

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