Figure 2. Effect of dose of jasmonic acid, herbivore damage and plant developmental stage on the release of volatiles.
Mature shoots and young entire plants were treated with different jasmonic acid (JA) concentrations (1.0, 0.1, 0.01, and 0.001 mmol L−1) or were damaged by herbivore (Gynandrobrotica guerreroensis) feeding. Among treatments, significant differences [according to post hoc analysis (LSD, P<0.05) after one-way ANOVA] in VOC release are indicated with different capital (shoots) or small-typed (young plants) letters at top of the columns. ‘*’ (P = 0.029) and ‘n.s’ at the upper panel of the figure indicate significant resp. non-significant difference in VOC release between shoots and young plants (according to Mann-Whitney-U Test). Values represent means ± SD. n of repetitions is indicated in the respective columns.