Hostname: page-component-7c8c6479df-27gpq Total loading time: 0 Render date: 2024-03-19T04:16:52.381Z Has data issue: false hasContentIssue false

Non-deep simple morphophysiological dormancy in seeds of the rare Alpinia galanga: a first report for Zingiberaceae

Published online by Cambridge University Press:  03 March 2016

R.G. Baradwaj
Affiliation:
Department of Plant Science, Bharathidasan University, Tiruchirappalli, TN 620024, India
M.V. Rao*
Affiliation:
Department of Plant Science, Bharathidasan University, Tiruchirappalli, TN 620024, India
Carol C. Baskin
Affiliation:
Department of Biology, University of Kentucky, Lexington, KY 40506, USA Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA
T. Senthil Kumar
Affiliation:
Department of Industry University Collaboration, Bharathidasan University, Tiruchirappalli, TN620024, India
*
*Correspondence Email: mvrao_456@yahoo.co.in

Abstract

Little information is available on seed dormancy of members of the Zingiberales and especially the Zingiberaceae. Our aim was to investigate the dormancy breaking and germination requirements of Alpinia galanga in vitro with a minimum number of seeds, using the move-along experiment. The mass of imbibed seeds increased by 17.5% in 1 d, showing that seeds were water permeable. The best germination in the move-along experiment (86.7%) was obtained when seeds were exposed to the sequence of temperature regimes that began with winter (20/10°C), and seeds began to germinate after 6 weeks at this temperature regime. Seeds dry stored for 4 months and then incubated at the sequence of temperature regimes that began with summer (30/20°C) started germinating in the sixth week at this temperature regime and had germinated to 93.3% after 18 weeks. Seeds kept dry for 4 months and then treated with 50 mg l−1 gibberellic acid (GA3) began to germinate at 30/20°C after 2 weeks. Control seeds incubated continuously at 20/10, 25/15 or 30/20°C germinated to 80.6, 77.8 and 60.0%, respectively. When incubated at 15, 20, 25 or 30°C, the ideal temperature for embryo growth was 20°C. Since GA3 and dry storage can break non-deep physiological dormancy and embryos grew during warm stratification, seeds of A. galanga have non-deep simple morphophysiological dormancy (MPD). This is the first report of non-deep simple MPD in the Zingiberaceae.

Type
Short Communication
Copyright
Copyright © Cambridge University Press 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Baskin, C.C. and Baskin, J.M. (2003) When breaking seed dormancy is a problem try a move-along experiment. Native Plants Journal 4, 1721.CrossRefGoogle Scholar
Baskin, C.C. and Baskin, J.M. (2004) Determining dormancy-breaking and germination requirements from the fewest seeds. pp. 162179 in Guerrant, E.O.; Havens, K.; Maunder, M. (Eds) Ex situ conservation: supporting species survival in the wild. Washington, DC, Island Press.Google Scholar
Baskin, C.C. and Baskin, J.M. (2014) Seeds: Ecology, biogeography, and evolution of dormancy and germination (2nd edition). San Diego, Elsevier/Academic Press.Google Scholar
Bhowmick, T.P. and Chattopadhyay, S.B. (1960) Germination of seeds of larger cardamom. Science and Culture 26, 185186.Google Scholar
Chanchula, N., Jala, A. and Taychasinpitak, T. (2013) Break dormancy by trimming immature Globba spp. International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies 4, 171178.Google Scholar
Dahanayake, N. (2014) Application of seed treatments to increase germinability of cardamom (Elettaria cardamomum) seeds under in vitro conditions. Sabaragamuwa University Journal 13, 2329.CrossRefGoogle Scholar
Finch-Savage, W.E. and Leubner-Metzger, G. (2006) Seed dormancy and the control of germination. New Phytologist 171, 501523.CrossRefGoogle ScholarPubMed
Giri, D. and Tamta, S. (2012) Effect of pre-sowing treatments on seed germination in Hedychium spicatum: an important vulnerable medicinal plant of Indian Himalayan region. Scientific Research and Essays 7, 18351839.Google Scholar
Goldberg, A. (1989) Classification, evolution and phylogeny of the families of monocotyledons. Smithsonian Contributions to Botany Number 71. Washington, DC, Smithsonian Institution Press.CrossRefGoogle Scholar
Kerala Forest Research Institute (2011) Flowering plants of Kerala, Version 2.0 database. Kerala Forest Research Institute, Peechi, Kerala, India (DVD).Google Scholar
Larsen, K., Lock, J.M., Maas, H. and Maas, P.J.M. (1998) Zingiberaceae. pp. 474495 in Kubitzki, K. (Ed.) The families and genera of vascular plants. Vol. 4. Berlin, Springer-Verlag.Google Scholar
Murashige, T. and Skoog, F. (1962) A revised medium for rapid growth and bio assays with tobacco tissue cultures. Physiologia Plantarum 15, 473497.CrossRefGoogle Scholar
Ramakrishna, N., Lacey, J. and Smith, J.E. (1991) Effect of surface sterilization, fumigation and gamma irradiation on the microflora and germination of barley seeds. International Journal of Food Microbiology 13, 4754.CrossRefGoogle ScholarPubMed
Rivai, R.R., Wardani, F.F. and Devi, M.G. (2015) Germination and breaking seed dormancy of Alpinia malaccensis . Nusantara Bioscience 7, 6772.Google Scholar
Schemske, D.W. (1983) Breeding system and habitat effects on fitness components in three neotropical Costus (Zingiberaceae). Evolution 37, 523539.CrossRefGoogle ScholarPubMed
Schumann, K. (1904) Zingiberaceae. Das Pflanzenreich 46, 1458.Google Scholar
Shields, R., Robinson, S.J. and Ansow, P.A. (1984) Use of fungicides in plant tissue culture. Plant Cell Reports 2, 3336.CrossRefGoogle Scholar
Smith, R.M. (1990) Alpinia (Zingiberaceae): a proposed new infrageneric classification. Edinburgh Journal of Botany 47, 175.CrossRefGoogle Scholar