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. 2023 Jun 6;14:1165156. doi: 10.3389/fpls.2023.1165156

Figure 2.

Figure 2

Estimated means (± standard errors) of (A) the proportion of Norway spruce (Picea abies) plants attacked and (B) area debarked by pine weevils (Hylobius abietis) in the lab experiment (replicated in time between July-August 2019). Treatments represent different plant types (Cont. = containerized seedlings, Bare-root = bare-root seedlings, SE = emblings produced via somatic embryogenesis) treated (or not) with the plant hormone methyl jasmonate (Non-treated; MeJA-treated = 10 mM sprayed once between July and August, 2019). Sample sizes for each treatment from left to right: Non-treated containerized seedlings n=150; bare-root seedlings n=12; emblings n=162; MeJA-treated containerized seedlings n=150; bare-root seedlings n=12; emblings n=162. Different letters indicate significantly different means. A table with pairwise comparisons and p-values can be found in the Supplementary material (Table S2) .