Books, Book Chapters & Bulletins

Books

  • De., L. C., and S.K. Bhattacharjee. 2011. Ornamental Crop Breeding, Pointer Publisher, Jaipur , Rajasthan.Pp. 438.

  • De., L. C., 2011. Value Addition in Flowers and Orchids. New India Publishing Agency, Pitampura, New Delhi.Pp.294.

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Books Cont..

  • Meena., N. K., R. P. Medhi and Rampal. 2012. Orchids: Predhashya Avanm Uttapadan Prodhaugiki. National Research Centre for Orchids, Pakyong, Sikkim, Pp. 1 - 216.

Book Chapters

  • Upadhyaya., R. C. (1998). National Research Centre for Orchids - In: 50 Years of Horticulture Research. ICAR Publication, New Delhi. Pp 122-123.

  • Upadhyaya, R. C. and Das, S. P. (2002). Cymbidiums of North Eastern Himalayas. In Orchids Science and Commerce (ed. P. Pathak et al.). Bhishen Singh Mahendra Pal, Dehradun.

  •  Das, S. P. (2003). Micropropagation of Orchids. In: Orchids Biodiversity and Conservation- A tissue culture approach (ed. S. J. Britto). Institute of Natural Resources, Tiruchirappalli.

  • Das, S. P. (2003). Orchid Seed Culture-raising progeny asymbiotically from embryo. In: Orchids Biodiversity and Conservation - A tissue culture approach (ed. S. J. Britto). Institute of Natural Resources, Tiruchivappalli.

  • Das, S. P. and Upadhyaya, R. C. (2003). Orchids in Hill Floriculture: Critical Considerations. In: Sustainable Mountain Agriculture (eds. R. Sharma et al.). Centre for Development Studies, Uttaranchal Academy of Administration, Nainital.

  • Nagaraju, V. andDas, S. P. (2003). Micropropagation of Orchids: A success story In: Comprehensive Micropropagation Of Horticultural Crops (eds. R. Chandra and M. Mishra). International Book Distributing Co., Lucknow. Pp. 270 -307.

  • Bag, T. K 2004. Recent Advances in the Diagnosis and Management of Orchid Viruses. In: Advances in Plant Protection Sciences. (Ed. Dr. D. Prasad, and A. Singh) Published by Akansha Publishing House, Ansari road, Dar'ya Ganj, New Delhi, pp 343-361.

  • Nagaraju, Y. and Mani, S. K 2004. Acclimatization of tissue culture regenerated plantlets- problems and solution. In: Emerging Trends in Ornamental of Horticulture, (Eds. B. Sathyanarayana Reddy, T. Janakiram, B. S. Kulakarni and P. Narayanaswamy) Indian Society of Ornamental H0l1iculture, Division of Floriculture Landscaping, IARI, New Delhi, pp l38-l44.

  • Nagaraju, Y. and Mani, S. K 2004. Tissue culture in Bulbous crops. In: Bulbous Ornamentals (Ed Rajeevan, P. K, Singh, KP. and Valsalakumari, P. K.) Indian Society of Ornamental Horticulture, New Delhi, pp 186-203.

  • Upadhyaya, R. C. and Nagaraju, Y. 2004. Orchid Scenario in NE State region: issues and strategies. In: Horticulture for sustainable income and environmental protection, Vol 1. ( Ed.) Singh, VB, Concept Publishing Company, Daryaganj, New DeIhl.

  • Nagrare V S. 2003. I:ests of bulbous ornamentals and their management. In: Bulbous Ornamentals. (Ed. Rajeevan P K, Singh K P, Valsalakumari P K and Geetha C K). Published by Indian Society of Ornamental Horticulture, Division of Floriculture and Landscaping, IARI, New Delhi, pp. 161-176.

  • Medhi, R. P., D. Barman and B. Rai 2009. Climate change and its impact on Orchids. In: Challange of climate change-Indian Horticulture. P. 131 – 136. (Eds) H. P. Singh, J. P. Singh and S. S. Lal. Westville Pub. House, New Delhi.

  • Meena., N. K., and R. P. Medhi. 2011. Non-Chemical Pest Management in Cultivation of Important Flowers in Himalayan Sikkim. Eco-Safe Management of Diversified Pest Problems. Aavishkar Publishers, Distributers, Jaipur. pp. 29 – 47.

  • Meena., N. K. and R. P. Medhi. 2012. Bio-rational Pests Management in Floricultural Crops. Biotechnological and Bio-rational Approaches for Pests and Disease Management. Biotech Books Publisher, New Delhi, pp. 346-379.

  • Pant., R. P., Smita, Gupta and R. P. Medhi. 2011. Important Diseases of Orchids and their Management. In: Plant Health Management. P. C. Trivedi, Agrobios (India), Jodhpur, India. Pp.1-15.

  • Pant., R. P., N. K. Meena and R. P. Medhi. 2012. Emerging Diseases and Pests of Orchids and Their Management. In: Sikkim Biodiversity, Significance and Sustainability. (Eds.) P. Tamang, A. K. Srivastava and Sonam Lepcha. Sikkim State Council of Science & Technology, Gangtok, Sikkim. Pp. 110 - 127.

  • Pant., R. P and R. P. Medhi,. 2012. Advances in orchid disease management. In: Biotechnological and Biorational Approaches for Pest and Disease Management. (Eds). H. Kalita, K. Kishore, H. Rahman, and L. Chatlod, Biotech Books, Ansari Road, Darya Ganj, Delhi.

  • De., L. C., 2012. Orchid Garden. In: Handbook of Gardening. Aavishkar publishers & Distributors, Jaipur, Rajasthan. Pp: 178.

  • Meena., N. K. and R. P. Medhi. 2012. Bio-rational Pests Management in Floricultural Crops. Biotechnological and Bio-rational Approaches for Pests and Disease Management. Biotech Books Publisher, New Delhi, Pp: 346-379.

  • Meena., N. K., D. Barman and R. P. Medhi. 2013. Impact of abioic factors on incidence of mite in orchids and its potential impact on flower production. Agroforestry and Climate Change Management. Pointer Publishers, Jaipur (Rajasthan), Pp. 116-121.

Bulletins

  • R. C. Upadhaya and S. P. Das. 2000. “ Cymbidium- species and Hybrids available in North Eastren Himalayas”. Technical bulletin No.1 National Research Centre for Orchids, Pakyong – 737 106, Sikkim.

  • Das, S. P., V agaraju and D. Barman. 2003. Gladiolus: Tips for cultivation (eds. R. C. Upadhyaya and S. P Das)

  • Das, S. P., Nagaraju V. and Barman, D. (2003). Gladiolus: Tips for cultivation.

  • Das, S. P. and Upadhyaya, R. C. (2003). Growing orchids in North Eastern Region: understanding the critical factors.

  • Agro-biodiversity (PGR)-I. National Agricultural Technology Project on Sustainable management of Plant biodiversity- Survey and collection of orchids and ornamental bulbous plants of North Eastern Hill Region-Activities and outcome. Compiled and edited by Nagaraju, Y., Partha Das and Upadhyaya, R. c., December 2004. Folder

  • NRCO: A Profile. National Research Centre for Orchids, Pakyong, Sikkim. Compiled and edited by Bag, T. K and Nagrare, Y. S., November, 2004. Folder

  • Nagrare V S. 2005. Pests of orchids and their management. National Research Centre for Orchids, Pakyong, Sikkim.

  • Nagaraju V, Upadhyaya R C, Barman D, Nagrare V S, Bag T K and Sarkar J. 2006. Orchids in North Eastern States. National Research Centre for Orchids, Pakyong, Sikkim.

  • Bag, T. K. 2006. Orchid Diseases and their Management. Technical Bulletin No 3. National Research Centre for Orchids, Pakyong 737106, Sikkim. P 1-18

  • Bag, T. K. 2006. Prevention of virus transmission in Cymbidium. (Folder), National Research Centre for Orchids, Pakyong 737106, Sikkim.

  • Nagrare, V. S. 2006.The Incredible Orchids, National Research Center for orchids, Pakyong, Sikkim

  • Ram pal and V. S. Nagrare 2006. Orchid diversity of India: its conservation and sustainable utilization. National Research Center for Orchids, Pakyong, Sikkim

  • Meena., N. K., R. P. Medhi., R. P. Pant., Rampal and D. Barman. 2010. Pest Management in Orchids, National Research Center for Orchids, Pakyong, Sikkim, Mini Mission – I, Technical Bulletin – 6.

  • Meena, N. K., R. P. Pant., Rampal and R. P. Medhi. 2011. Orchids Ke Hanikarak Keet avam Unka Prabandhan, National Research Center for Orchids, Pakyong, Sikkim, Mini Mission – I, Technical Bulletin – 8.

  • Naik., S.K., T. Usha Bharathi., D. Barman., Rampal., L.C. De and R.P. Medhi. 2010. Basics of Orchid Nutrition, National Research Center for Orchids, Pakyong, Sikkim, Mini Mission – I, Technical Bulletin – 5.

  • Rampal and R. P. Medhi. 2011 Technoguide for Propagation of Cymbidiums through Backbulbs, National Research Center for Orchids, Pakyong, Sikkim, Mini Mission – I, Technical Bulletin – 7.

  • Rao. A.N., P.K. Rajeevan, S.K. Sood, L.C. De, and G.S. Rawat. 2011. Guidelines for the Conduct of Test for Distinctiveness, Uniformity and Stability on Orchid Cymbidium spp. Protection of Plant Varieties and Farmers Rights Authority, NASC Complex, New Delhi

  • Rao. A.N., P.K. Rajeevan, S.K. Sood, L.C. De, and G.S. Rawat. 2011. Guidelines for the Conduct of Test for Distinctiveness, Uniformity and Stability on Orchid Dendrobium spp. Protection of Plant Varieties and Farmers Rights Authority, NASC Complex, New Delhi

  • Rao. A.N., P.K. Rajeevan, S.K. Sood, L.C. De, and G.S. Rawat. 2011. Guidelines for the Conduct of Test for Distinctiveness, Uniformity and Stability on Orchid Vanda spp. Protection of Plant Varieties and Farmers Rights Authority, NASC Complex, New Delhi

  • Barman., D., H. Pokhrel, P. Mohanty, Rampal, M. Adhikari, L. C. De, N. K. Meena, N. Sailo and R. P. Medhi. 2013. Production Technology of Aerides odoratum, Coelogyne nitida and Zygopetalum intermedium. NRC for Orchids, Pakyong, Sikkim. Pp: 1-48. (Technical Bulletin No. 2(NAIP))

  • Pant., R. P., N. K. Meena and R. P. Medhi. 2013. Important diseases of Orchids and their Management. NRC for Orchids, Pakyong, Sikkim. Pp. 1-40. (Technical Bulletin No.09)

  • Pant., R. P., N. K. Meena and R. P. Medhi. 2013. Virus diseases of Orchids and their Management. NRC for Orchids, Pakyong, Sikkim. Pp. 1-34. (Technical Bulletin No.10)

  • Rampal., M. Dayamma and R. P. Medhi. 2013. Manual for Acclimatization of Micro propagated Cymbidiums. NRC for Orchids, Pakyong, Sikkim. Pp. 1-33. (Technical Bulletin No.11)

  • Rampal., R. P. Medhi, M. Dayamma and Parvati Khatiwara. 2013. Commercialization of Cymbidiums in Sikkim; NRCO turning a dreams into reality. NRC for Orchids, Pakyong, Sikkim. Pp. 1-33. (Technical Bulletin No.12)

  • De, L.C., D. Barman, R. P. Medhi, Geetamani Chhetri and H. Pokhrel. 2013. Production Technology of Dendrobium. NRC for Orchids, Pakyong, Sikkim. Pp. 1-30. (Technical Bulletin No.13)

  • De., L. C., D. Barman, R. P. Medhi, Geetamani Chhetri and H. Pokhrel. 2013. Production Technology of Phaleonopsis. NRC for Orchids, Pakyong, Sikkim. Pp: 1-26. (Technical Bulletin No. 15)

Research paper
  • Upadhyaya,R.C. (1998) National Research for Orchids - In “ 50 Years of Horticulture Research. ICAR Publication, New Delhi : pp 122 - 123.

  •  D.Barman and P. Pal (1999).Effect of nitrogen, potassium and spacing on growth and flowering of Chrysanthemum (Chrysanthemum morifolium Ramat) Cv. Chandrama. Hort.Journal 12 (I) – 51-60.

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  • Nagaraju, V and Parthasarathy, V.A. 1999.In vitro micropropagation of Cymbidium giganteum. Indian J. Hort. 56 (3): 270-273.

  • Parthasarathy, V.A. and Nagaraju, V. 1999. In vitro propagation of Gerbera jamesonii Bolus. Indian J. Hort. 56: 82-85.

  • Hazarika, B.N., Nagaraju, V and Parthasarathy, V. A. 1999. Acclimatization of Citrus plantlets in vitro. Ad. Plant Sci. 12: 97-102.

  • Parthasarathy, V. A., Nagaraju, V., Hazarika, B.N and Baruah, A. 1999. An efficient method of acclimatization of micropropagated plantlets of citrus. Trop. Agric. (Trinidad). 76: 147-149.

  • Nagaraju, V., Bhowmick,G. and Parthasarathy, V.A. 2000. Component analysis of in vitro response to BAP in gladiolus. J. Ornamental Hort. 3:18-2 

  • Parthasarathy, V.A. and Nagaraju, V. 1998. Effect of Benzylaminopurine on in vitro shoot cultures of citrus species from different mother plants. Agrotropica. 10 (3): 139-142. (Published in 1999-2000).

  • Hazarika, B.N., Nagaraju, V. , Bhowmik, G and Parthasarathy, V.A. 2000. Paclobutrazol induced biochemical changes in micro shoots of citrus species. Folia. Hort. 12 (Press).

  • Hazarika, B.N., and Parthasarathy, V.A ., Nagaraju, V and Bhowmik, G. 2000. Sucrose induced biochemical changes in in vitro micro shoots of Citrus species. Indian J. Hort. 57: 27-31.

  • Nagaraju, V and Upadhyaya, R.C. 2001. In vitro morphogenetic response of Cymbidium to three basal media and activated charcoal. J Orchid Soc. India. 15: 57-62.

  • Nagaraju, V and S. P. Das. 2003. In vitro morphogenetic response of orchid species to triacontanol. Indian J. Ornamental Hort. 6: 25-28.

  • Nagaraju, V and S. K. Mani. 2003. Influence of mercuric chloride and growth substances on culture initiation and multiplication of Gladiolus cv. Ice Gold in vitro. J. Hill Res. 16: 45-49.

  • Nagaraju, V, S. P. Das, P.c. Bhutia and R.C. Upadhyaya. 2003. In vitro multiplication of Cymbidium hybrids. J. Orchid Soc. India.16: 25-28.

  • Nagaraju, V, S. P. Das, P.C. Bhutia and R.C. Upadhyaya. 2003. Response of Protocorms of Cymbidium Lunavian Atlas to Benzyl Amino Purine. Indian]. Hort. 60 (1): 98-103.

  • Nagrare, V S. 2001. Pests of orchids and their management in Sikkim- A survey. J. Orchid Soc. India15(1-2):65-68.

  • Nagrare, V S. 2003. Insect pollination of orchids. Sci. Cult. 69(1-2): 77-79

  • Bag, T. K. (2003). Two New Orchid Hosts of Sclerotium rolfsii Sacc. from India. New Disease Reports (http: / / www.bspp.org.uk/ndr/). 8: Aug.2003-Jan.2004.

  • Bag, T. K. (2003). Sclerotinia sclerotiorum on Butterfly flower- a new record. Indian Phytopatho. 56: 121122

  • Bag, T. K. and Das, S. P. (2003). Rust of Phaius maculatus -A new Report in India. Orchid News 19: 17

  • Barman, D. and Rajni, K. (2003). Studies on rooting in the keikis of bamboo orchid (A. gramminifolia L.)! Ornam. Hort. 6(3): 165-171

  • Barman, D., Rajni, K., Das, S. P., Nagaraju, V. and Upadhyaya, R. C. (2004). Response of auxins to rooting and shoot growth in back bulbs of Cymbidium hybrid Show Girl "Cooksbridge". J. Ornam. Hort. 7: 118-120

  • Mani, S. K. and Nagaraju, V. (2004). Influence of potting media on acclimatization and growth of in vitro plantlets of Cymbidium hybrids. J Ornam. Hort. 7: 31-37.

  • Nagaraju V., Das, S. P., Bhutia, P. C. and Upadhyaya, R. C. (2003). In vitro multiplication of Cymbidium hybrids. J. Orchid Soc. India 16: 25-28.

  • Nagaraju, V. and Das, S. P. (2003). In vitro morphogenetic response of orchid species to triacontanol. J. Ornam Hort. 6: 25-28.

  • Nagaraju, V. and Mani, S. K. (2003). Influence of mercuric chloride and growth substances on culture initiation and multiplication of Gladiolus cv. Ice Gold in vitro.J. Hill Res. 16: 45- 49.

  • Nagaraju, V. and Mani, S. K. (2003). The effect of benzylaminopurine and triacontanol on mericloning of Cymbidium Soul Hunt I. In: One hundred Research Papers in Floriculture Eds. Rajeevan, P. K., Valsalakumari, P.K and Misra, R.L. Indian Society of Ornamental Horticulture, KA U, Kerala.

  • Nagaraju, V., Das, S. P., Bhutia, P. C. and Upadhyaya, R. C. (2003). Effect of media and BAP on protocorms of Cymbidium and Cattleya. J Orchid Soc. India 17: 67-71.

  • Nagaraju, V., Das, S. P., Bhutia, P.C. and Upadhyaya, R. C. (2003). Response of protocorms of Cymbidium Lunavian Atlas to Benzyl Amino Purine. Indian J Hort. 60 (1): 98-103.

  • Nagrare, V. S. (2003). Occurrence of aphid Toxoptera aurantii on orchid Dendrobium densiflorum- A new report. Ann. Pl. Protec. Sci. 11(2): 379.

  • Bag, T. K. 2004. Two new orchid hosts of Sclerotium rolfsii Sacco from India. PI. Pathology 53:255.

  • Bag, T. K. 2004. Occurrence of orchid wilt (Sclerotium rolfsii Sacc) in Cymbidium and its hybrids. Sci. & Cult. 70 (7-9): 287-88.

  • Bag, T. K. 2004. Fungal diseases of some ornamental and flowering plants in the hills of Sikkim. Farm Science Journal 13(2): 192-194.

  • Barman, D. and Rajni, K. 2004. Studies on rooting in the keikis of bamboo orchid (Arundina gramminifolia L.) 1. Ornam. Hort. 6(3): 260-263.

  • Barnlan, D. and Rajni, K. 2004. Effect of chemicals on dormancy breaking, growth, flowering and multiplication in gladiolus. J. Ornament. Hort. 7(1): 38-44.

  • Barman, D., Rajni, K. and Upadhyaya, R. C. 2004. Post harvest life of gladiolus cut flower as influenced by silver salts. J. Hill Res. 17(1):6-10.

  • Barman D., Rajni, K. Das, S. P., Nagaraju, V. and Upadhyaya, R.c. 2004. Response of auxins to rooting and shoot growth in back bulbs of Cymbidium hybrid Show Girl Cook's Bridge. 1. Ornam. Hort. 7(1): U8-l20.

  • Mani, S. K. and Nagaraju, V. 2004. Influence of potting media on acclimatization and growth of in vitro plantlets of Cymbidium hybrids. J. Ornament. Hort., 7(3): 307-312.

  • Nagaraju, V. and Mani, S. K. 2004. Influence of basal media, triacontanol and paclobutrazol on Cymbidium tracyanum Rolfe. J. Hill Res. 17 (1): 20-22.

  • Nagaraju, V. and. Mani, S. K. 2004. In vitro multiplication of Cymbydium Golden Girl as influenced by various growth hormones. 1. Ornament. Hort., 7: 31-37.

  • Nagaraju, V. and. Mani, S. K. 2004. Influence of triacantonol and paclobutrozol on in vitro growth and ex vitro survival of Cymbidium Lunavian atlas. J. Ornament. Hort., 7(3-4): 320-324.

  • Nagaraju., V., Das, S. P., Perna C. Bhutia and Upadhyaya, R.c. 2004. In vitro multiplication of Dendrobium chrysotoxum and two Dendrobium crosses (D. Nobile x D. Nobile var. Alba and D. Nobile X D. heterocarpum) through embryoculture. J. Orchid Soc. India 18: 47-51.

  • Nagaraju, V. and Mani, S. K. 2005. Rapid in vitro propagation of Zygopetalum intermedium. J. PI. Biochem. Biotech. 14: 27-32.

  • Nagrare, V. S. 2004. Occurrence of Mollusca Cryptaustenia verrucosa (Godwin - Austin) on Orchid Calanthe spp.- A new report. Sci & Cult. 70(7-8): 289.

  • Nagrare, V. S. 2004. The black aphid Toxoptera aurantii infesting Orchids, Orchid News Vol. 20 December 2004, Published by The Orchid Society of India, Chandigarh.

  • Nagrare, V. S. 2004. The black aphid, Toxoptera aurantii (B. De F) infests the Orchid, Oncidium Gower Ramsay. Entomon 29(2): 193-195.

  • Bag T K. 2005. A new seedling blight disease of Swertia Chirayita (Roxb. ex Flem.) Karst. incited by Rhizoctonia Solani Kuhn. Sci, & Cult. 71(1-2): 33.

  • Bag T K. 2005. Aerial blight of dahlia incited by Rhizoctonia Solani Kuhn-A new disease.]. Hill Res., 18(1) 35-36.

  • Barman D, Rajni K, Naik S K and Upadhyaya R C, 2004. Effect of nitrogen, phosphorus, potassium on growth and flowering of Cymbidium.]. Omam, Hort., 7 (3 & 4): 235-238.

  • Sherpa A R, Bag T K, Hallan V and Zaidi A A. 2006.Detection of Odontoglossun Ring spot virus in Orchid from Sikkim, India. Australasian Plant Pathology, 35: 69-71.

  • Bag, T. K. (2006). A New Report on Sclerotinia White Rot of Two Jewel Orchids from Darjeeling, India. J Mycol Pl Pathol 36 (2): 304-05.

  • Bag, T. K. (2006). Report of Orchid Wilt (Sclerotium rolfsii) on Vanda Group of Orchids. Journal of Hill Research . 19:44-45.

  • D. Barman, K. Rajni, R. C. Upadhyaya and D. K. Singh 2006 Effect of horticultural practices for sustainable production of rose in partially modified greenhouse. Indian J. Hort., 63(4):415-418.

  • D. Barman, R. C. Upadhyaya, K. Rajni and S.K.Naik 2005 Effect of media and Planting system on growth and flowering of Cymbidium Tracyanum L. Castle. J. of The Orchid Society of India.,19(1-2):73-76.

  • Sherpa, A.R., Bag, T.K., Hallan, V. and Zaidi, A.A. (2007). Incidence of Cymbidium mosaic virus (CymMV) in Sikkim. Indian Phytopathology,60: 133-136.

  • S. Chakrabarti and J.Sarkar 2006.Estimation of foliar pigments and its relationship with leaf thickness in 16 species of the genus Eria of family Orchidaceae Journal of Ornamental Horticulture.

  • J.Sarkar, J.Das and S.Chakrabarti, 2006 Estimation of foliar pigments and phenol concentrations to assess red spider mite (Tetranychus articae Koch.) tolerance in cymbidium orchids ENTOMON 31(3):p159-164.

  • Nagrare, V. S. 2006. Pest complex of orchid Dendrobium nobile. Insect environment 12(3): 101.

  • Bag, T.K. and Ram Pal 2007. A new rust on Calanthe from Darjeeling Hill, India . Science. & Culture. 73. (11-12) 405-407.

  • Barman D. and Rajni K., 2006. Effect of chemical;s on postharvest life of cut rose cultivar First Red., J. Ornamental. Hort. 9(4): 262-265.

  • Barman D., Basak J., Rai B., Devdas R., Nagraju V. and Medhi R.P. 2007. Performance of Cymbidium hybrids in Mid hill situation of Sikkim. J. Ornamental. Hort .10(1):30-33.

  • Barman D., Rajni K., Naik S. K. and Upadhyaya R. C. 2008. Production of Cymbidium Soul hunt-6 by manipulating some of the cultural practices under partially modified green house. Indian J. Hort. 65(1)-69-72.

  • Chakrabarti, S., Rai, B., Sarkar, J. and.Das, J. 2007.Estimation of Photosynthetic Pigment Variations in Five Developmental Stages of Cymbidium whitae of family Orchidaceae. Environment and Ecology 25(2), 270-273.

  • Chakrabarti Syamali., Sarkar, J and Rai, B. 2007. Influence of Potting Media on Leaf Morphology and Biochemical Parameters of Epidendrum orchid..Environment and Ecology. 25(2), 280-283.

  • Naik S. K. and Barman D.2006.Response of foliar application of nitrogen on flowering in Cymbidium hybrid., J. Ornamental. Hort. 9(4): 270-273.

  • Barman, D., J. Basak, B. Rai, R. Devadas, V. Nagrare and R. P. Medhi. 2007. Performance of Cymbidium hybrids in mid hill situation of Sikkim. J. Ornam. Hort. 10: 30-33.

  • Barman, D., B. Rai, T. U. Bharathi, V. Nagarare and R. P. Medhi. 2008. Influence of chemicals on vase life of Cymbidium hybrid variety Halley's Cormet Aurora. J. Ornam. Hort. 10: 240-244.

  • Nagrare V. S., Ram Pal and D. Barman (2009) Pests Associated with Dendrobium nobile under Mid Altitude of Sikkim. Environment and Ecology 27 (2): 560 – 562.

  • Devdas, R., P. Khatiwara, D. Barman and S. P. Das 2009. Breeding Dendrobium phalaenopsis-cane type hybrid in India: NRCO-42(Den. Emma White x Den. ‘Pampadour’)- Indian J. Genet. 69: 237-242.

  • Devadas, R., J. Das, S. K. Naik, and R. P. Medhi 2008. Influence of potting mixture on acclimatization and growth of in vitro developed plantlets of Zygopetalum intermedium. J. of Ornam. Hort., 11: 241-247.

  • Meena, N. K. 2009. Organic control of shoot borer in orchids (Dendrobium nobile) through botanical pesticides, Indian J. of Applied Entomology 23: 63-65.

  • Nagrare, V.S., Ram Pal and D. Barman 2009 Pest associated with Dendrbium nobile under mid altitude of Sikkim. Environment & Ecology 27: 560 – 662.

  • Nagrare, V.S. and Ram Pal 2008. Response of acaricides against two – spotted spider mites Tetranychus urticae Koch infesting Cymbidium under polyhouse in Sikkim. J. of Ornam. Hort., 11: 104 – 106

  • Naik, S.K., T. Usha Bharathi, D.Barman, R.Devdas, Rampal and R.P.Medhi 2009. Status of mineral nutrient of orchid – A review. J. Ornam. Hort. 12: 01-14.

  • Ram Pal, M. Dayamma, and V. S. Nagrare 2009 Effect of BAP (6 –Benzylaminopurine) on bud break and planlet regeneration from the backbulbs of Calanthe yucksomnensis S.Z.Lucksom (Orchidaceae). Indian J. of Forestry 32: 65 – 68.

  • Usha Bharathi, T., D. Barman, N. Buragohain, S.K. Naik, and R. P. Medhi 2009. Effect of different chemicals and growth regulators on vase life of Oriental Lily hybrid Solaila. J. of Ornam. Hort. 12: 73.

  • Devdas., R., R. P. Medhi and S. P. Das. 2010. Interspecific hybrid in Epidendrum Orchid from E. radicans Pav. Ex. Lindl. x. E. xanthinum Lindl. J. of Horticultural Sciences, 5 (2):144-147.

  • Meena., N. K. and R. P. Medhi. 2010. Evaluation of botanical products for management of thrips,Dichromothrips nakahari on orchid (Dendrobium nobile). Pestology, XXXIV (9): 17 – 22.

  • Pant., R. P., Mrinal Das., K. B. Pun., P. Ramachandran and R. P. Medhi 2010. Occurrence of Cymbidium mosaic and Odontoglossum ringspot viruses in orchid germplasm of Sikkim and Darjeeling hills, their identification and diagnosis.Indian Phytopath. 63:326 – 332.

  • Ram Pal and R. P. Medhi. 2010. A colour variant of Liparis bootanensis Griff, from Darjeeling Hills.Indian J. of forestry.33: 125 – 126.

  • Rani., P., R. P. Pant., and R. K. Jain 2010. Serological detection of Cymbidium mosaic and Odontoglossum ringspot viruses in orchids with polyclonal antibodies produced against their recombinant coat proteins.J. Phytopathology.158: 542 – 545.

  • Barman., D., R.P. Medhi, Utpala Parthasarathy, K.Jayarajan and V.A. Parthasarathy. 2011. Geospatial approach to Diversity of Cymbidium Swartz in Sikkim. The MIOS Journal 12 (10): 8-16.

  • Devdas., R., D. Barman and R.P. Medhi. 2011. Dendrobiumm lituiflorum Lindl.- A value addition Report from Khashi Hills of Meghalaya. Indian J. Plant Genetic Resource 24(2): 246-249.

  • Meena., N.K., V.S. Nagrare and R.P. Medhi 2011. Thrips, Dichromothrips nakahari Mound (Thysanoptera: Thripidae) infesting the orchids in India- A new report. Indian J. of Horticulture, 68(4): 587-588.

  • Meena., N. K. and R. P. Medhi. 2011. Bioefficacy of botanicals and biopesticides in management of shoot borer, Peridaedala sp. (Lepidoptera: Tortricidae) on Epidendrum sp. under polyhouse conditions. Pestology, 35 (5): 47-51.

  • Naik, S.K.,R. Devdas,, T. Usha Bharathi D. Barman and R.P. Medhi. 2011. Changes in nutrient content and iron deficiency in growing media of Cymbidium hybrid’ Pine Clash Moon Venus’. Indian J. Agric. Sci. 81(8): 764-6.

  • Ram Pal, M. Dayamma and R. P.Medhi. 2011. A new variety of Pleione humilis (Orchidaceae) from Darjeeling district of West Bengal India. J. Orchid Soc. India. 25(1-2): 73-75

  • Ram Pal, V. S. Nagrare and M. Dayamma. 2010. Notes on growth and flowering of Liparis cordifolia (Orchidaceae) a beautiful terrestrial orchid. Indian Forester, 136:228-233.

  • Ram Pal and R. P. Medhi. 2011. Variability in the germplasm of Cymbidium elegans Lindl. Orchid collected from Darjeeling district of West Bengal, Indian Journal of Forest. 34: 177-180.

  • Ram Pal, R. P. Medhi and N. K Meena. 2011. Bottlenecks in commercializing Cymbidium orchids in Darjeeling. Indian Res. J. Ext. Edu. 11(3): 49-53.

  • Barman., D., T. U. Bharati and R. P. Medhi. 2012. Effect of media and nutrition on growth and flowering of Cymbidium hybrid H.C. Aurora. Indian J. Hort. 69(3): 395-398.

  • Devadas., R., D. Barman and P. Khatiwara. 2012. First generation interspecific hybrid of Cymbidium. ICAR News, 18 (3): 8-9.

  • Medhi., R. P., M. Chakraborti and Rampal. 2012. Orchid biodiversity of India: conservation and utilization. Indian J. Genet., 72(2): 148-156.

  • Pant., R. P., M. Das, M. R. Khan, K. B. Pun and R. P. Medhi,. 2012. Association of an ecto-parasite nematode- Helicotylenchus microcephalus Sher, with poor growth of Cymbidium hybrids in Sikkim. Indian Phytopath. 65 (2): 196-197.

  • Chowdappa., P., C. S. Chethana, R. Bharghavi, H. Sandhya and R. P. Pant, 2012. Morphological and molecular characterization of Colletotrichum gloeosporioides (Penz.) isolates causing anthracnose of orchids in India. Biotechnol. Bioinf. Bioeng. 2 (1): 567-572.

  • Meena., N. K., Ram Pal, R. P. Pant and R. P. Medhi. 2012. Evaluation of insecticides and biopesticides for the management of two spotted spider mite, Tetranchus urticae in orchid (Cymbidium H. C. Aurora). Pestology, 36(10): 40-45.

  • Rao., A. N., P. K. Rajeevan, Manoj Srivastava, S. R. Dhiman and L.C. De. 2012. Guidelines for the Conduct of Test for Distinctiveness, Uniformity and Stability on Orchid Cattleya and Phalaenopsis orchids. Plant Variety J. of India, 6 (11): 7-116.

  • Naik., S. K., D. Barman and N. Pathak. 2013. Response of graded levels of calcium and magnesium on growth and flowering of Cymbidium hybrid ‘Mint Ice Glacier’. African J. of Agricultural Research, 8(17): 1767-1778.

  • Meena., N.K., Rampal, D. Barman and R. P. Medhi. 2013. Biology and seasonal abundance of the two-spoted spider mite,Tetranchus urticae, on orchids and rose. Phytoparasytica, DOI 10.1007/s 12600-013-0320-2.

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