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Models for microbiological colony counts

Morris, David L., Ridout, Martin S. (2005) Models for microbiological colony counts. Journal of Agricultural, Biological, and Environmental Statistics, 10 (2). pp. 158-169. ISSN 1085-7117. (doi:10.1198/108571105X46011) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:569)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1198/108571105X46011

Abstract

Concentrations of microorganisms can be estimated from colony counts at different dilutions. However, complications can occur because of colony overlap or inhibition of colony growth. We develop a model of inhibition in which colonies fail to develop if spores are close to spores of other inhibitory species. The model has three parameters, but a limiting case of the model with only two parameters is shown to be more useful in practice. This latter model, which is a generalized linear model, is fitted to colony counts of the fungus Verticillium dahliae and contrasted with a model suggested in an earlier article.

Item Type: Article
DOI/Identification number: 10.1198/108571105X46011
Uncontrolled keywords: count data; dilution; hard-core model; inhibition process; Poisson process; Verticillium dahliae
Subjects: H Social Sciences > HA Statistics
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Mathematics, Statistics and Actuarial Science
Depositing User: Judith Broom
Date Deposited: 19 Dec 2007 18:20 UTC
Last Modified: 05 Nov 2024 09:30 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/569 (The current URI for this page, for reference purposes)

University of Kent Author Information

Ridout, Martin S..

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