FIGURE 4.

Schematic overview of the competition experiment set-up. Arabidopsis plants were grown in competition trays, consisting of separate small pots positioned very close together. Each tray consisted of 49 plants, of which 25 plants were soil-drenched containing 500 μM SA, 50 μM MeJA, or a combination of both hormones. The other 24 plants were treated with either a mock solution or a combination of both hormones. Only the inner nine plants were used for measurements, to circumvent any edge effect.