Impacts on maintenance respiration

Given that assimilate requirements of processes related to the presence of the pathogen have priority over host growth (Bastiaans and Kropff, 1993), another coupling point between crop models and foliar disease models has been established to take into account the enhancement of the maintenance respiration as a function of the disease severity (Bingham and Topp, 2009). The enhancement of the maintenance respiration of diseased leaves as a function of disease severity is simulated according to the following equation:

Where Rd is the state variable of maintenance respiration at day d (Kg ha-1) and α is a coefficient to express the ratio between the respiration rate of a lesion and that of an identical area of healthy leaf tissue.

Increase in maintenance respiration at different values of disease severity with variable alfa values.

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