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. 2023 May 9;14:1130471. doi: 10.3389/fpls.2023.1130471

Figure 3.

Figure 3

Effect of PEG concentration in the maturation medium on the maturation and germination of somatic embryos of P. massoniana. (A) The concentrations of PEG from left to right are 70, 90, 110, 130, 150 or 170 g/L in solid culture, and somatic embryos were obtained after 75 days. Scale bar = 1.0 cm. (B) was a further close-up of (A) under the stereomicroscope. Scale bar = 0.1 cm. (C) Germination of masson pine somatic embryos on germination medium after 1 month. Scale bar = 1.0 cm. (D) Number of somatic embryos obtained from solid maturation medium after 75 days. (E) Germination rate of somatic embryos. Data represent the mean ± SE of the sample. Different lowercase letters above the bars indicate significant differences according to ANOVA and Duncan’s test (p < 0.05).