Abstract
The objective of this study was to evaluate the ability ofHosta Golden Scepter (GS) ovary explants to generate adventitious shootsin vitro. Ovaries were transversely cut into halves and transferred to petri dishes containingHosta initiation medium supplemented with naphthaleneacetic acid (NAA) at 2.5 μM and N6-benzyladenine (BA) at 10 μM. GS produced adventitious shoots from the ovary base via organogenesis. The number of adventitious shoots regenerated from callus increased linearly with repeated subculturing on Murashige and Skoog (MS) medium supplemented with 2.5 μM NAA and 10 μM BA. The number of multiple shoots developing from callus (15.8), shoot tip (8.4), leaf (6.7), and root (4.3) occurred on MS medium supplemented with 2.5 μM NAA and 20–30 μM BA. There were significant differences in the number of shoots regenerated from shoot tips and callus on MS medium with 50 and 100 mgmyo-inositol per l. Similarly, there were significant differences in the number of axillary shoots and adventitious shoots produced with 20 g/l sucrose treatment.
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