Inoculated plants were transplanted into 250-ml pots
containing sandy soil. The inoculated plants were maintained in
a controlled growth chamber at 27 ◦C under a photosynthetic flux
density of 90 M/m2 s for 14 days. For each watermelon accession
tested, 35 seedlings (7 plants per pot
×
5 replicates per treatment)
were evaluated. The plants were manually irrigated daily
to drainage with tap water. The plants were not fertilized during
the experiment.