Biochemical parameters Days after pathogen inoculation Correlation coefficient (r) with disease incidence Regression equation

Total soluble protein

5 days

-0.6214

Y=32.2247-0.2143X

10 days

-0.5867

Y=32.7956-0.1462X

15 days

-0.5484

Y=31.6708-0.1186X

Total phenol

5 days

-0.5370

Y=2.1532-0.0100X

10 days

-0.5656

Y=2.4014-0.0099X

15 days

-0.4225

Y=2.2224-0.0087X
Table 3: Correlation of disease incidence with total soluble protein and total phenol content of tomato leaves.