MICROPROPAGATION OF CHUKRASIA TABULARIS A. FUSS BY SOMATIC EMBRYOGENESIS TECHNIQUE

Chukrasia tabularis belongs to the Meliaceae family, which is native to many Asian countries, including Vietnam. It is a precious wood species with beautiful wood grain, light-loving tree with evergreen leaves, widely grown in many places Cameroon, Costa Rica, Nigeria, Puerto Rico, South Africa, United States, China ... for many different purposes: planting economic forests, alternative forests, protective forest belts and urban greenery. In Vietnam, Chukrasia tabularis are usually distributed naturally in the northern, central highland and southern provinces. From Nghe Tinh onwards, there are many varieties such as Dong Nai Chukrasia tabularis (Chukrasia tabularis var. Dongnaiensis), Con Dao Chukrasia tabularis (C. tabularis sp.), small fruit Chukrasia tabularis (C. tabularis var. Microcarpa), and hairy Chukrasia tabularis (C. tabularis var. Velutina). Chukrasia tabularis often grow on well-drained soil, at an altitude of 300-800 m.asl, the annual average temperature is from 2-43oC, rainfall is 1,800-3,800 mm. Singing and development occurs in high limestone mountains, meaty soil, mixed meat, nutrient poor sandy soil at an altitude of less than 100 m. The tree is regenerated by seed but grows slowly and with high genetic diversity. Techniques of somatic embryo culture are applied to preserve and develop Chukrasia tabularis plants with urgent needs.