Growth measurements
After 7 days of P. melonis inoculations, plants were harvested to measure Some growth parameters. Root fresh weights, root dry weight, shoot fresh weight and shoot dry weight were expressed in grams per plant. Root volume was measured using the method of changes in the water volume. The root and Collar diameter (in mm) was measured by using a digital caliper with accuracy of 0.01 mm. In addition, root length was expressed in cm.