Pathometry : the measurement of plant disease

Pathometry : the measurement of plant disease

This paper describes a system for quantifying the severity of a plant disease. It is based on two principles: (a) that the human eye is a photocell that reads in logarithms and (b) that it sees diseased tissue below 50% and healthy tissue above 50%.

Reference of this article is:

Horsfall J.G., Cowling E B. Pathometry : the measurement of plant disease. Hortfall J G & Cowling E B. eds. Plant disease: an advanced treatise. Volume11. How disease develops in populations.New York: Academic Press. 198:119-36.

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