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Development of Suitable Propagation Systems for Tephrosia spp. in Sri Lanka

Authors:

A.I.S. Priyadarshan,

University of Kelaniya, LK
About A.I.S.
Department of Botany
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S.P. Senanayake ,

University of Kelaniya, LK
About S.P.
Department of Botany
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M.P. Jayatilleke,

Western College of Idaho, US
About M.P.
Department of Science, Technology and Engineering
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S. Rajapakse

University of Peradeniya, LK
About S.
Department of Molecular Biology & Biotechnology
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Abstract

Genus Tephrosia (Fabaceae) commonly known as ‘Pila’ in Sri Lanka. Some Tephrosia spp. are used in many traditional therapeutic preparations in Sri Lanka and also in other countries. Increased use of Tephrosia in traditional therapeutic systems has developed a great demand for these species. Thus production of planting materials for commercial cultivation has become a timely requirement. Therefore, this research was conducted to determine suitable propagation systems for four selected Tephrosia spp.; T. purpurea, T. villosa, T. noctiflora and T. pumila. Even though seeds of Tephrosia spp. showed high viability, lower germination percentage was observed on wet filter paper as well as in six different potting media [M0 (Coir: dust: Sand; 1:1:1), M1 (Coir dust: Sand: Top soil; 1:1:1), M2 (Coir dust: Sand: Top soil: Compost; 1:1:1:1), M3 (Coir dust: Sand: Top soil: Compost: Cow dung; 1:1:1:1:1), M4 (Coir dust: Sand: Compost; 1:1:1), M5 (Coir dust: Sand: Top soil: Cow dung; 1:1:1:1)] during a period of one week. Water impermeability of seed coats was identified as the main reason for the seed dormancy in Tephrosia spp. and soaking seeds in Con. H2SO4: H2O; 3:1 for 25 minutes and rubbing seeds on sandpaper for 2 minutes were determined as suitable dormancy breaking methods. Variation was observed in the growth performance of Tephrosia spp. in six different potting media. Growth performances of seedlings of Tephrosia spp. in hydroponic solution and soil medium were observed and soil medium was selected as the most suitable medium for the growth of Tephrosia species based on their growth performances.

 J. Sci. Univ. Kelaniya 9 (2014): 39-45

DOI: http://doi.org/10.4038/josuk.v9i0.6767
How to Cite: Priyadarshan, A.I.S. et al., (2015). Development of Suitable Propagation Systems for Tephrosia spp. in Sri Lanka. Journal of Science of the University of Kelaniya Sri Lanka. 9, pp.39–45. DOI: http://doi.org/10.4038/josuk.v9i0.6767
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Published on 09 Jul 2015.
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