Abstract
Cations were desorbed from root exchange sites of ryegrass (Lolium multiflorum Lam. cvs. Gulf, Marshall, Urbana, and Wilo) using BaCl2, BaCl2-triethanolamine, NH4OAc, and KCl. Results were analysed using multivariate analysis of variance. Ba2+-containing desorbents displaced more Ca2+ while monovalent desorbents displaced more exchangeable monovalent cations. The sum of adsorbed cations was significantly correlated with root exchange capacity (CEC) as determined by the H+ titration procedure, although slightly larger values were obtained with all desorbents. Lower CEC values were obtained for ryegrass cultivars less sensitive to Al.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Amory D E and Dufey J E 1984 Adsorption and exchange of Ca, Mg and K-ions on the root cell walls of clover and ryegrass. Plant and Soil 80, 181–190.
Chamuah G S and Dey S K 1982 Determination of cation exchange capacity of woody plant roots using ammonium acetate extractant. Plant and Soil 68, 135–138.
Devaux H 1916 Action rapide des solutions salines sur les plantes vivantes: Deplacement reversible d'une partie des substances basiques contennes la plante. C. R. Acad. Sci. Paris 162, 561–563.
Foy C D, Fleming A L, Burns G R and Armiger W N 1967 Characterization of differential aluminum tolerance among varieties of wheat and barley. Soil Sci Soc. Am. Proc. 31, 513–521.
Heintze S G 1961 Studies on cation-exchange capacities of roots. Plant and Soil 13, 365–383.
Kennedy C W, Smith W C Jr and Ba M T 1986 Root cation exchange capacity of cotton cultivars in relation to aluminum toxicity. J. Plant Nutr. 9, 1123–1133.
Ledin S and Wiklander L 1974 Exchange acidity of wheat and pea roots in salt solutions. Plant and Soil 41, 403–413.
Lee R B 1977 Effect of organic acids on the loss of ions from barley roots. J. Exp. Bot. 28, 578–587.
Mardia K V, Kent J T and Bibby J M 1979 Multivariate Analysis. Academic Press, New York. p. 521.
Mattson S, Eriksson E, Vahtras K and Williams E G 1949 Phosphate relations in soil and plant. Lantbr. Hogsk. Ann. 16, 457–484.
Morrison D F 1976 Multivariate Statistical Methods, 2nd ed. McGraw-Hill Book Comp., New York. p. 415.
Mouat M C H 1962 Genetic variation in root cation-exchange capacity of ryegrass. Plant and Soil 16, 263–265.
Rengel Z and Robinson D L 1989a Aluminum effects on growth and macronutrient uptake by annual ryegrass. Agron. J. 81. (In press).
Rengel, Z and Robinson D L 1989b. Aluminum and plant age effects on adsorption of cations in the Donnan free space of ryegrass roots. Plant and Soil 116, 223–227.
Thomas G W 1982 Exchangeable cations.In Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties. Ed. A L Page. pp 159–165. Agronomy Monograph 9, Madison, Wisconsin, USA.
Vose P B and Randall P J 1962 Resistance to aluminum and managanese toxicity in plants related to variety and cation-exchange capacity. Nature 196, 85–86.
William D E and Coleman N T 1950 Cation exchange properties of plant root surfaces. Plant and Soil 2, 243–256.
Author information
Authors and Affiliations
Additional information
Approved for publication by the Director of the Louisiana Agricultural Experiment Station as manuscript No. 88-09-2778.
Rights and permissions
About this article
Cite this article
Rengel, Z., Robinson, D.L. Determination of cation exchange capacity of ryegrass roots by summing exchangeable cations. Plant Soil 116, 217–222 (1989). https://doi.org/10.1007/BF02214550
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02214550