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  • Cited by 7
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    Crossref Citations
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    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.
    MARTIN, J. T. 1960. PYRETHRUM CULTIVATION IN ENGLAND, 1925-37. Annals of Applied Biology, Vol. 48, Issue. 4, p. 837.
    Gimingham, C. T. 1940. SOME RECENT CONTRIBUTIONS BY ENGLISH WORKERS TO THE DEVELOPMENT OF METHODS OF INSECT CONTROL. Annals of Applied Biology, Vol. 27, Issue. 2, p. 161.
    MARTIN, J. T. MANN, H. H. and TATTERSFIELD, F. 1939. THE MANURIAL REQUIREMENTS OE PYRETHRUM (CHRYSANTHEMUM CINERARIAEFOLIUM TREV.). Annals of Applied Biology, Vol. 26, Issue. 1, p. 14.
    Martin, J. T. 1938. The chemical evaluation of pyrethrum flowers ( Chrysanthemum cinerariaefolium): A comparison of several methods. The Journal of Agricultural Science, Vol. 28, Issue. 03, p. 456.
    MARTIN, J. T. and TATTERSFIELD, F. 1934. THE EFFECT OF ENVIRONMENTAL CONDITIONS UPON PYRETHRUM (CHRYSANTHEMUM CINERARIAEFOLIUM). I.. Annals of Applied Biology, Vol. 21, Issue. 4, p. 670.
    Tattersfield, F. 1932. The Loss of Toxicity of Pyrethrum Dusts on Exposure to Air and Light. The Journal of Agricultural Science, Vol. 22, Issue. 02, p. 396.
    TATTERSPIELD, F. 1931. Pyrethrum Flowers: A Quantitative Study Of Their Development. Annals of Applied Biology, Vol. 18, Issue. 4, p. 602.
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The Evaluation of Pyrethrum Flowers (Chrysanthemum Cinerariaefolium)

  • J. T. Martin (a1) and F. Tattersfield (a1)
Extract

1. The analytical methods of Tattersfield, Hobson and Gimingham(6) and Gnadinger and Corl(1) for the determination of the pyrethrins in pyrethrum flowers are compared, and certain modifications in technique suggested.

2. Good concordances have been obtained between analytical data and insecticidal tests employing Aphis rumicis.

3. A new method for the rapid and approximate evaluation of unadulterated samples, employing small quantities of material, is described.

4. Observations on the pyrethrin content of individual flowers in the various stages of development are recorded, making use of a modification of the method indicated under (3).

Copyright
COPYRIGHT: © Cambridge University Press 1931
References
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(1)Gnadinger, C. B. and Corl, C. S.J. Amer. Chem. Soc. (1929), 51, 3054.
(2)Gnadinger, C. B. and Corl, C. S.J. Amer. Chem. Soc. (1930), 52, 680.
(3)Hagedorn, H. C. and Jensen, B. N.Biochem. Z. (1923), 135, 46.
(4)Staudinger, H. and Ruzicka, L.Helv. Chem. Act. (1924), 7, 177.
(5)Staudinger, H. and Harder, H.Ann. Acad. Scient. Fennicae A (1927), 29, No. 18.
(6)Tattersfield, F., Hobson, R. P. and Gimingham, C. T.J. Agric. Sci. (1929), 19, 266. (Rothamsted Memoirs, 14.)
(7)Tattersfield, F. and Morris, H. M.Bull. Ent. Res. (1924), 14, 223. (Rothamsted Memoirs, 12.)
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The Journal of Agricultural Science
  • ISSN: 0021-8596
  • EISSN: 1469-5146
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