Treatment Lesion size (mm)a
3 dpib 5 dpib
water 1.97 ±0.63 3.01 ±0.56
salicylic acid 1.43 ±0.55 2.68 ±0.31
aLesion size is the mean of 30 lesions on four plants (one leaf per plant) ±SD. bP < 0.0005. Experiment was repeated four times with similar results.
Table 3: Effect of exogenous application of salicylic acid on lesion growth in N. megalosiphon. TMV was inoculated at dilution that resulted in 10 lesions per leaf.