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Pyrethrin I and II: Their estimation in pyrethrum (Chrysanthemum cinerariaefolium). II

Published online by Cambridge University Press:  27 March 2009

F. Tattersfield  and
R. P. Hobson
F. Tattersfield
Affiliation:
(Department of Insecticides and Fungicides, Rothamsted Experimental Station, Harpenden.)
R. P. Hobson
Affiliation:
(Department of Insecticides and Fungicides, Rothamsted Experimental Station, Harpenden.)
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Extract

1. The acid method previously described has been used to evaluate samples of pyrethrum derived from both Swiss and Japanese seed, with equally successful results.

2. A rapid method for the evaluation of pyrethrum by a determination of pyrethrin I is described.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 19 , Issue 3 , July 1929 , pp. 433 - 437
Copyright
Copyright © Cambridge University Press 1929

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References

REFERENCES

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