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Sulphur as a soil fungicide against the potato wart disease organism

Published online by Cambridge University Press:  27 March 2009

W. A. Roach
W. A. Roach
Affiliation:
(Late of Department of Insecticides and Fungicides, Rothamsted Experimental Station; now Biochemist1, East Malling Research Station, Kent.)
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Extract

(1) Thiosulphuric acid has been shown to exist in a free state.

(2) It is relatively stable in dilute solution; an M/200 solution is only half decomposed at the end of 1 day and an M/400 solution at the end of 10 days only.

(3) This degree of stability is sufficient to account for the fungicidal action of acidified thiosulphate solutions in terms of the liberated thiosulphuric acid.

(4) It can be calculated that it is only necessary to assume 6 per cent. of the minimum quantity of sulphur found effective against Wart Disease in the field to be in the form of thiosulphuric acid over a period of 10 days in order to account for its toxicity.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 20 , Issue 1 , January 1930 , pp. 74 - 96
Copyright
Copyright © Cambridge University Press 1930

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References

REFERENCES

(1)Bassett, H. and Durrant, R. G. “The inter-relationships of the sulphur acids.” J. Chem. Soc. (1927), 1401–1468.Google Scholar
(2)Crowther, E. M., Glynne, Mary D. and Roach, W. A. “Sulphur treatment of soil and the control of wart disease of potatoes in pot experiments.” Ann. App. Biol. (1927), 14, 422–427.Google Scholar
(3)Ephraim, . Inorganic Chemistry (1926), Eng. trans. P. C. L. Thorne, Gurney and Jackson.Google Scholar
(4)Guittonneau, G. “Sur la formation d’hyposulfites aux dépens du soufre par les micro-organismes du sol.” C.R. Acad. Sci. (Paris), (1925), 180, 1142–1144.Google Scholar
(5)Guittonneau, G. “Sur l’oxydation microbienne du soufre.” C.R. Acad. Sci. (1926), 182, 661–663.Google Scholar
(6)Guittonneau, G. and Keiling, J. “Sur la solubilisation du soufre é1émentaire et la formation des hyposulfites dans une terre riche en azote organique.” C.R. Acad. Sci. (1927), 184, 898–901.Google Scholar
(7)Guittonneau, G. “L’oxydation microbienne du soufre dans ses rapports avec l’évolution de la matière azotée dans le sol.” Proceedings and Papers of the First International Congress of Soil Science convened in Washington, D.C. June 13–22, 1927 for the International Society of Soil Science by the American Organising Committee, Washington, D.C. 1928.Google Scholar
(8)Joffe, J. S. “Biochemical oxidation of sulphur and its significance to agriculture.” New Jersey Agric. Exp. Sta. (Dec. 1922), Bull. 374.Google Scholar
(9)Kurtenacker, A. “Űber Anwendungen der Alderhyd-Bisulfitreaktion in der Massanalyse.” Z. anal. Chem. (1924), 64, 56–61.Google Scholar
(10)Roach, W. A., Glynne, Mary D., Brierley, Wm. B. and Crowther, E. M. “Experiments on the control of Wart Disease of Potatoes by soil-treatment with particular reference to the use of sulphur.” Ann. App. Biol. (1925), 12, 152–190.Google Scholar
(11)Roach, W. A. and Brierley, Wm. B. “Further experiments on the use of sulphur in relation to Wart Disease of Potatoes.” Ann. App. Biol. (1926), 13, 301–307.Google Scholar
(12)Roach, W. A. and Glynne, Mary D. “The toxicity of certain sulphur compounds to Synchytrium endobioticum, the fungus causing Wart Disease of Potatoes.” Ann. App. Biol. (1928), 15, 168–190.Google Scholar
(13)Treadwell, F. P. and Mayr, C. “Eine neue Methode zur jodometrischen Bestimmung der Rhodan- und Schwefelwasserstoffsäure.” Z. f. anorg. Chem. (1915), 92, 127–134.Google Scholar
(14)Williams, Robert C. and Young, H. C. “The toxic property of sulfur.” Ind. Eng. Chem. (1929), 21, 359–362.Google Scholar