In vitro germination and embryogenic competence acquisition of Euterpe edulis Martius immature zygotic embryos
2012
Cleber Witt Saldanha | Maisa Pimentel Martins-Corder
This study evaluated different aspects of in vitro germination and embryogenic competence of immature zygotic embryos of E. edulis. The embryos germinated on full or half-strength MS (MS or MS/2) medium combined with sucrose (20, 30 and 40 g L-1). The effect of calcium chloride concentrations (0, 2, 4, 8, and 12 mM) on the induction of somatic embryogenesis was tested. The embryos were germinated on MS or MS/2. Germination of zygotic embryos and the number of roots per plantlet were not affected by the culture medium and sucrose concentration. Plantlet height and fresh weight were influenced by both; the difference was greatest in MS medium with 40 g L-1 sucrose. The induction of somatic embryogenesis was not influenced by doses of calcium chloride, whereas the number of somatic embryos formed was affected. The germination capacity of somatic embryos of heart-of-palm tree was not influenced by the media tested
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