- ORCHID BIOTECHNOLOGY 223
Rao, N.K. 2004. Plant genetic resources: Advancing conservation and use through biotech-
nology. African J. Biotech. 3(2):136–145.
Reddy, J. 2008. Biotechnology of orchids. I.K. Intl. Publ. House, New Delhi, India.
Redenbaugh, K. 1993. Synseeds: Applications of synthetic seeds to crop improvement.
CRC Press, Boca Raton, FL.
Reed B. M. 2008. Plant cryopreservation: A practical guide. Springer, New York.
Reinikka, M.A. 1995. A history of the orchid. Timber Press, Portland, OR.
Rodrigues, L.A., V.B.P. Neto, A.G. Boaretto, J.F. Oliveira, M.A. Torrezan, S.F. Lima, and
W.C. Otoni. 2015. In vitro propagation ofCyrtopodium saintlegerianumrchb. f. (orchi-
daceae), a native orchid of the Brazilian savannah. Crop Breed. Appl. Biotechnol.
15:10–17.
Roostika, I., and I. Mariska. 2003. In vitro culture of pineapple by organogenesis and
somatic embryogenesis: Its utilization and prospect. Bul. AgroBio. 6(1):34–40.
Royal Horticultural Society. 2015. Orchid hybrid registration. https://www.rhs.org.uk/
plants/plantsmanship/plant-registration/orchid-hybrid-registration
Roy, J., and N. Banerjee. 2003. Induction of callus and plant regeneration from shoot tip
explants ofDendrobium fimbriatumLindl. var.oculatumH.K. f. Scientia Hort. 97:333–
340.
Roy, J., S. Naha, M. Majumdar, and N. Banerjee. 2007. Direct and callus-mediated
protocorm-like body induction from shoot tips ofDendrobium chrysotoxumLindl.
Plant Cell Tissue Org. Cult. 90:31–39.
Sacks, E.J., and D.A. St Clair. 1996. Cryogenic storage of tomato pollen: Effect on fecun-
dity. HortScience 31:447–448.
Safrinah, R., R. Xavier, S.U. Rani, and S. Sreeramanan. 2009. Optimization of cryopreser-
vation technique inMokaragolden nugget orchid using PVS2 vitrification. Intl. J. Agr.
Res. 4:218–227.
Saieed, N.T., G.C. Douglas, and D.J. Fry. 1994. Induction and stability of somaclonal vari-
ation in growth, leaf phenotype and gas exchange characteristics of Poplar regenerated
from callus culture. Tree Physiol. 14:1–16.
Saiprasad, G. V. S., P. Raghuveer, S. Khetarpal, and R. Chandra. 2004. Effect of various
polyamines on production of protocorm-like bodies in orchid—Dendrobium‘Sonia’.
Scientia Hort. 100:161–168.
Saiprasad, G.V.S., and R. Polisetty. 2003. Propagation of three orchid genera using encap-
sulated protocorm-like bodies. In vitro Cell. Dev. Biol. Plant. 39:42–48.
Sakai, A., and F. Engelmann. 2007. Vitrification, encapsulation–vitrification and droplet–
vitrification: A review. CryoLetters 28:151–172.
Sarasan, V., R. Cripps, M.M. Ramsay, C. Atherton, M. McMichen, G. Prendergast, and
J.K. Rowntree. 2006. Conservation in vitro of threatened plants—progress in the past
decade. In vitro Cell. Dev. Biol. Plant. 42:206–214.
Sarkar, D., and P.S. Naik. 1998. Synseeds in potato: An investigation using nutrient-
encapsulated in vitro nodal cutting segments. Scientia Hort. 73:179–184.
Sarmah, D.K., M. Borthakur, and P.K. Borua. 2010. Artificial seed production from encap-
sulated PLBs regenerated from leaf base ofVanda coeruleaGrifft. ex. Lindl.: An endan-
gered orchid. Curr. Sci. 98:686–690
Scocchi, A., M. Faloci, R. Medina, S. Olmos, and L. Mroginski. 2004. Plant recov-
ery of cryopreserved apical meristem-tips ofMelia azedarachL. using encapsula-
tion/dehydration and assessment of their genetic stability. Euphytica 135:29–38.
Seaton, P.T. 1985. Investigations to establish improved techniques for seed storage, ger-
mination and culture of seedlings of Cattleya aurantiaca. M.S. Thesis, The Polytechnic,
Wolverhampton, UK.