Cotyledonary segments from the germinated immature zygotic embryos were used for somatic embryogenesis of red sandalwood (Pterocarpus santalinus). The explants established on Murashige and Skoog (MS) medium containing 5% sucrose combination 6-benzylaminopurine (BAP), 2,4-Dichlorophenoxyacetic acid (2,4-D), α-Naphthaleneacetic acid. All treatments responded to callus induction with a 36–97% freq...