Abstract
Pepper (cv. New Mexico - 6 and Rajur Hirapur) plants were regenerated from immature zygotic embryos via direct somatic embryogenesis. Somatic embryos were formed directly, without any intervening callus, on the zygotic embryo apex, embryo axis and cotyledons on Murashige and Skoog's (MS) medium containing 2,4-D (418 μM), thidiazuron (10 μM) and a high concentration of sucrose (6-10%). The best response was observed on MS medium containing 2,4-D (9 μM), coconut water (10%) and high sucrose (8%). The entire process of induction and maturation of the embryos was completed on the same medium. Histological examination indicated that secondary embryogenesis also occurred directly from the primary somatic embryos. Differentiation of embryos was nonsynchronous, and some embryos were swollen and distorted with fasciation. More than 70% of the mature normal somatic embryos germinated readily on MS medium containing GA3 or TDZ, alone and in combination, and following transfer to pots developed into normal plants.
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