Abstract
Guava (Psidium guajava L.) is well known for edible fruit, environment friendly pharmaceutical and commercial products for both national and international market. The conventional propagation and in vitro organogenesis do not meet the demand for the good quality planting materials. Somatic embryogenesis for efficient micropropagation of guava (P. guajava L.) has been developed to fill up the gap. Somatic embryogenesis and plantlets regeneration are achieved from 10-week post-anthesis zygotic embryo explants by 8-day inductive treatment with different concentrations of 2,4-dichlorophenoxy acetic acid (2,4-D) on MS agar medium containing 5% sucrose. Subsequent development and maturation of somatic embryos occur after 8 days on MS basal medium supplemented with 5% sucrose without plant growth regulator. The process of somatic embryogenesis shows the highest relative efficiency in 8-day treatment of zygotic embryo explants with 1.0 mg Lā1 2,4-D. High efficiency germination of somatic embryos and plantlet regeneration takes place on half strength semisolid MS medium amended with 3% sucrose within 2 weeks of subculture. Somatic plantlets are grown for additional 2 weeks by subculturing in MS liquid growth medium containing 3% sucrose. Well-grown plantlets from liquid medium have survived very well following 2ā4 week hardening process. The protocol of somatic embryogenesis is optimized for high efficiency micropropagation of guava species.
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Akhtar, N. (2012). Somatic Embryogenesis for Efficient Micropropagation of Guava (Psidium guajava L.). In: Lambardi, M., Ozudogru, E., Jain, S. (eds) Protocols for Micropropagation of Selected Economically-Important Horticultural Plants. Methods in Molecular Biology, vol 994. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-074-8_12
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DOI: https://doi.org/10.1007/978-1-62703-074-8_12
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