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Preliminary experiments on the estimation of traces of heteroauxin in soils

Published online by Cambridge University Press:  27 March 2009

A. F. Parker-Rhodes
A. F. Parker-Rhodes
Affiliation:
The Agricultural and Horticultural Research Station, Long Ashton, Bristol
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Extract

A method is described by which small quantities of indolyl acetic acid can be detected and measured quantitatively, depending on the effect of this substance on osmotic pressure of root hair cells of wheat seedlings. Full details are given of the procedure adopted and the precautions which it was found necessary to take, and suggestions are put forward as to how the method might be rendered more accurate if necessary. Possible sources of e"rror are also discussed.

An experiment is described in which this method is used to determine what effect is produced by different manurial treatments on the content of indolyl acetic acid in the soil. It was found that farmyard manure tended to increase the quantity present.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 30 , Issue 4 , October 1940 , pp. 654 - 671
Copyright
Copyright © Cambridge University Press 1940

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References

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