A comparison of methods used for determination of cation exchange capacity

Gillman, G. P.; Bruce, R. C.; Davey, B. G.; Kimble, J. M.; Searle, P.L.; Skjemstad, J. O.

doi:10.1080/00103628309367428

Cited by 72 publications

(29 citation statements)

References 3 publications

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“…The problem most commonly occurs in alkaline soil due to low solubility of Fe at high pH (Alcantara et al 2002;Shi et al 1993) or, less commonly, in soil with a high cation exchange capacity (Waters et al 2002;Gillman et al 1983). Symptoms include chlorosis in young leaves, stunting and reduced yield (Seeliger and Moss 1976;Christin et al 2009;Welch and Graham 2004).…”

Section: Introductionmentioning

confidence: 99%

Natural variation for Fe-efficiency is associated with upregulation of Strategy I mechanisms and enhanced citrate and ethylene synthesis in Pisum sativum L.

Kabir

Paltridge

Able

et al. 2012

Planta

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Iron (Fe)-deficiency is a common abiotic stress in Pisum sativum L. grown in many parts of the world. The aim of the study was to investigate variation in tolerance to Fe deficiency in two pea genotypes, Santi (Fe-efficient) and Parafield (Fe-inefficient). Fe deficiency caused greater declines in chlorophyll score, leaf Fe concentration and root-shoot development in Parafield compared to Santi, suggesting greater Fe-efficiency in Santi. Fe chelate reductase activity and ethylene production were increased in the roots of Santi and to a lesser extent in Parafield under Fe deficiency, while proton extrusion was only occurred in Santi. Moreover, expression of the Fe chelate reductase gene, FRO1, and Fe transporter, RIT1 were upregulated in Fe-deficient roots of Santi. Expression of HA1 (proton extrusion) was also significantly higher in Santi when compared to Parafield grown in Fe-deficient conditions. Furthermore, the application of the ethylene biosynthesis inhibitor, 1-aminoisobutyric acid reduced the Fe chelate reductase activity, supporting a direct role for ethylene in its induction. A significant increase in root citrate was only observed in Santi under Fe deficiency indicating a role for citrate in the Fe-efficiency mechanism. Taken together, our physiological and molecular data indicate that genotypic variation in tolerance to Fe deficiency in Santi and Parafield plants is a result of variation in a number of Strategy I mechanisms and also suggest a direct role for ethylene in Fe reductase activity. The pea cultivar, Santi provides a new source of Fe-efficiency that can be exploited to breed more Fe-efficient peas.

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Section: Introductionmentioning

confidence: 99%

Natural variation for Fe-efficiency is associated with upregulation of Strategy I mechanisms and enhanced citrate and ethylene synthesis in Pisum sativum L.

Kabir

Paltridge

Able

et al. 2012

Planta

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“…The soil pH was determined at a soilto-water ratio of 1:2.5. The CEC was measured by the ammonium acetate method (Gillman et al, 1983). The soil organic carbon (SOC) contents were determined by a dry combustion method with an elemental analyzer (Vario EL III, Elementar, Hanau Germany), using soil pretreated with HCl, and in turn the soil organic matter content equaled 1.724 Â SOC (Nam et al, 2008).…”

Section: Soil Properties and Enzyme Activity Analysismentioning

confidence: 99%

Quantitative assessment on soil enzyme activities of heavy metal contaminated soils with various soil properties

2015

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“…The solution was filtered with filter paper and washed twice with 20 mL of a KCl solution. Six drops of 0.1% phenolphthalein were added to the filtrate, and the solution was titrated with 0.01 mol L -1 NaOH (Gillman et al, 1983). The percent aluminum saturation To analyze the soil cation exchange capacity, 2 g of a soil sample was weighed, then 1 g of ISSN 2166-0379 2017 http://jas.macrothink.org 20 active charcoal and 100 mL of HCl (0.5 mol L -1 ) were added.…”

Section: Chemical Analysis Of the Soilmentioning

confidence: 99%

“…The mixture was stirred for approximately 30 min and vacuum filtered, and the filter was washed with distilled water and then with 100 mL of a calcium acetate solution (to a final volume of 250 mL). Finally, 6 drops of 0.1% phenolphthalein were added, and the solution was titrated with 0.1 NaOH mol L -1 (Gillman et al, 1983).…”

Section: Chemical Analysis Of the Soilmentioning

confidence: 99%

Evaluation of the Soil Response to the Successive Application of Aqueous Extracts from Canavalia Ensiformis Leaves Used as a Post-emergent Bioherbicide

Silva¹,

Rezende²

2017

JAS

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Soil is normally the final destination of pesticides applied to cultures. After a series of applications, various pesticides reach the soil due to direct application or leaf washing. However, some amount of the pesticides, particularly foliar pesticides, are intercepted and absorbed by the leaves of the weeds or by the culture itself. Plants contaminated with pesticides may return to the soil during the culture cycle (leaf senescence) or after harvesting (as crop residues). The destination of the pesticide residues in the soil from plant material is both generally ignored and unknown. The pesticide and its degradation products can be released into the soil during the decomposition of the plant, leading to an additional risk of environmental contamination. The greatest consideration when using pesticides (herbicides, insecticides, etc.) is the sensitivity and danger to other non-target species and organisms in the area of application. The adverse effects caused by the indiscriminate use of pesticides, ISSN 2166-0379 2017 http://jas.macrothink.org 16 especially herbicides, receive substantial attention because they account for 45% of the world's total pesticide market. In this work, Tukey's test was used (with a 5% level of probability) to compare soil responses to successive applications of aqueous extracts containing bioherbicides. In general, the existence of bioherbicide residues in soil did not change its properties relative to a control soil. The nutrients evaluated herein did not show a tendency to decrease or increase in concentration during successive applications of the extracts onto the weeds, including possible contact with the soil. The use of bioherbicide did not interfere with the availability of the nutrients or affect the soil fertility characteristics, and it consequently promoted the development of plants throughout the experiment. The persistence of the bioherbicide or its byproducts in soil should not be considered an environmental risk. Journal of Agricultural Studies

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A comparison of methods used for determination of cation exchange capacity

Cited by 72 publications

References 3 publications

Natural variation for Fe-efficiency is associated with upregulation of Strategy I mechanisms and enhanced citrate and ethylene synthesis in Pisum sativum L.

Natural variation for Fe-efficiency is associated with upregulation of Strategy I mechanisms and enhanced citrate and ethylene synthesis in Pisum sativum L.

Quantitative assessment on soil enzyme activities of heavy metal contaminated soils with various soil properties

Evaluation of the Soil Response to the Successive Application of Aqueous Extracts from Canavalia Ensiformis Leaves Used as a Post-emergent Bioherbicide

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