Oak somatic and gametic embryos maturation is affected by charcoal and specific aminoacids mixture

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Table I

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

Treatment	Germination (%)
0.25 mg L⁻¹ BAP + 0.1 mg L⁻¹ IBA	16.7
0.1 mg L⁻¹ BAP + 0.1 mg L⁻¹ IBA	15
0.05 mg L⁻¹ BAP + 0.1 mg L⁻¹ IBA	18.7*
0.1 mg L⁻¹ BAP + 1 mg L⁻¹ IBA	9.7
0.1 mg L⁻¹ BAP	11
Control (no PGRs)	6.3