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Figure 4
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Germination rate (%) of cork oak somatic embryos treated with 6-benzyl-aminopurine (BAP, 0, 0.05, 0.1, 0.25 and 0.5 mg L−1) combined with IBA (0.1 mg L−1), NAA (0.1 mg L−1) or without auxin (control). Treatments marked with an asterisk (*) were statistically significant at the 5% level.