A Comparison by Simulation of Disease Dispersal in Pure and Mixed Stands of Susceptible and Resistant Plants
Year: 1976
Type: article
Abstract: Disease dispersion from a point source in pure and mixed stands of susceptible and resistant plants was followed by a simulation made by using the equation in respect with disease dispersion, y=are-5P. The effect of mixing of resistant plants in susceptible plants to inhibit the disease increase is reduced with the increase of disease dispersal gradient, 6, Iarger than 0.5. Infection rates calculated by the number of new lesions decrease straightly with the decrease of the proportion of susceptible plants against the logarithm of the proportion. This decrease is inhibited by the increase of disease dispersal gradient, 6. The effect of mixing of resistant plants is decreased with the decrease of spacing density. The infection rates calculated by the total number of new and old lesions give a dropping curve which is asymptotic to 0.
Source: Ikushugaku zasshi
Author: Shigehisa KIYOSAWA
Language: English
Subfield: Applied Mathematics
Field: Mathematics
Domain: Physical Sciences
SDGs: Life on land, Zero hunger
Open Access status: diamond
OpenAlex ID: W2069291283