Dr. P.K. Borua

Dr. P.K. Borua
Dr. P.K. Borua
Tea & Agro Studies



  1. Bachelor’s Degree: B.Sc. (Major in Botany), Sibsagar College
  2. Master’s Degree: M.Sc. in Botany with specialisation in Cytogenetics & Plant Breeding, Gauhati University.
  3. Ph.D.: “Cytomorphological Studies on Some Shade Tree Species Used in Tea Plantations of Northeast India”. Dibrugarh University
  4. Other: Special Training in the following:
  • DBT, Govt. of India sponsored training course on the ‘Application of Tissue Culture to Crop improvement’ held in the Dept. of Botany, University of Calicut (Kerela) from Oct. 7-25, 1991.
  • DST Govt. of India sponsored workshop on ‘EDP based information dissemination to promote science and technology and management(course I)’ organized by Institute of Advanced Study in Science and Technology, Assam in NEIST (earlier RRL), Jorhat on Sept. 18-24, 1982.
  • Fellow of the Indian Society of Genetics & Plant Breeding.

Professional Experience:     Forty years of teaching and research experiences

  1. Lecturer (Sept., 1980) followed by Reader (1989) and Professor (1997) in Life Sciences, Dibrugarh University till date.
  2. As Lecturer in Botany in JB College , Jorhat   - 1976-78 (as Part time) and 1978-1980 (as Full time)
  3. As, Junior Research Fellow in North East Institute of Science and Technology (earlier RRL), Jorhat. -1976-1978.

Areas of Interest/ Specialization:

  • Cytogenetics
  • Crop improvement
  • Tissue Culture
  • Ochidology

Research Projects: (COMPLETED)

  1. ’Conservation, germplasm maintenance and commercial exploitation of Orchids through conventional breeding and micropropagation’ sponsored by DRDA
  2. ‘In vitro approaches for the propagation of petro crop - Pongamia pinnate L’. sponsored by DRL

Ph.D Scholars:

Sl. No.




(On-going /Awarded)


Ms. Alakananda Boruah (1996)

Cytogenetical studies of some chilli cultivars (Capsicum annuum L.) and assessment of their phylogenetic relationship.



Ms. Th.Thoibi Devi (1997)

Study of cytogenetics and breeding behaviour of some species of Zephyranthes available in the North eastern region of India



Ms. Mehzebin Sultana Alam (1997)

Studies on mass clonal multiplication of a few forestrees of N.E. India through in vitro micropropagation.



Mr. Supriyo Chakraborty (1997)

Genetic study of some quantitative components of yield in Black gram 1997 (Vigna mungo L.Hepper)



Mr. Bichitra Kr.Borthakur (1997)

Studies on some fungal diseases of tea in North east India, their 1997 control and effect of certain therapeutants on the cytomorphology of the host plant.



Ms. Jinu Devi (1998)

Morphological and biochemical studies of some indigenous rice (Oryza sativa L.) 1998 varieties of Assam.



Mr. Bijit Bhattacharyya (1999)

Gamma ray induced mutation in spined and spineless varieties of Solanum khasianum Clarke with respect to yield, yield attributes and solasodine content



Mr. Kamini Kanta Sarma (1999)

A comparative morpho-cytological and biochemical study of few selective taxa of Cymbopogon Spreng and Litsea Lamk.growing in North east India.



Mr. Bidyadhar Borthakur (1999)

Mushroom flora of Nambar Reserve Forest, Golaghat, Assam with special with special reference to nuclear status of some of them.



Mr. Rajib Borthakur (2000)

Response of chilli (Capsicum annuum L.) varieties and intervarietal hybrid to Colletotrichum falcatum



Ms. Arunima Devchoudhury(2008)

Studies on heterosis in relation to combining ability in rice for cold temperature associated pollen and spikelet sterility.



Ms. Purnima Hazarika. (2008)

In vitro propagation and synthetic propogules production of Orchids with special emphasis on Dendrobium and Cymbidium



Mr. Basistha Kalita (2008)

Systematic survey and taxonomic studies of the Orchid flora of Nagaon district(undivided) with special emphasis on improvement by selection and hybridisation.



Mr. Jayanta Barukial (2008)

Study of mosses of Upper Brahmaputra Valley, Assam, India



Ms. Dimpy Das (2008)

In vitro micropropagation of three medicinal plants Viz. Andrographis paniculata Wall ex. Nees (Brumf), Bacopa monniera L., Ocimum gratissimum L., Establishment of plantlets in natural condition and Study of active ingredients.



Mr. Rajen Saikia (2009)

Studies on effect of diurnal and seasonal Changes in morphogenetics,yield of herbs, Oil and its quality of Cymbopogon winteriana Jowit.



Mr. Budhen Ch.Baruah (2010)

Studies on the Morphology, Cytology, Yield Attributing Characters and Certain Metabolic Parameters of Two Citral Yielding Lemongrass Strains (Cymbopogon flexuosus L. Steud) and their Hybrids.



Mr. Debajit Sarmah (2011)

In vitro Multiplication of Three Commercially Potential Orchid Species of North East India



Ms. Arunima Das Hazarika (2011)

Studies on Genetic Diversities among Leguminous Members of Undivided Sibsagar District of Assam.



Ms. Pallabi Dutta (2012)

Biometrical and Biochemical Evaluation of Indigenous Rice (Oryza sativa L.) cultivars of Dhemaji District of Assam.



Mr. Sangeeta Das (2015)

Studies on Comparative Efficacy of Organic and Conventional Agricultural Practices in relation to Soil health and Tea yield'.



Mr. Siddhartha Sharma (2016)

Study of Antioxidant contents in different clones of Tea (Camellia sinensis var assamica) and its concentration due to seasonal variation and different manufacturing processes.



Ms. Sukanya Baruah(2017)

Myocardial Infarction and its association with Polymorphism of ACE and eNOS genes, Diabetes and Dyslipidemia: A Hospital base control study.



Ms. Saheen Shah(2017)

A study on Infestation in selected clones of Tea (Camellia sinensis (L) Kontze) by tea mosquito bug (Helopeltis thiovora: Waterhouse) in relation to Agroclimatic conditions using Biochemical Parameters



Ms. Aditi Smith Gogoi(2017)

Characterization of few Important Industry Clones of Tea of Upper Assam



Mr. Gaurab Gogoi

Phytochemical investigation of Abelmoschus moschatus (L.) Medik. and its in vitro multiplication.



Mr Kailyanjeet Borah

Status of Micronutrients of Soil and Tea Shoots in Some Tea growing Regions of Assam



Ms Nilakshi Borah

Physiochemical and Molecular Studies in Seedlings of Teak (Tectona grandis L.) of North East India in Relation to Drought Resistance for Selection of Improved Germplasm



Administrative Assignments:

  • Dean, Research & Development
  • Chairperson, Centre for Tea and Agro Studies
  • Besides, member by dint of Professor in different statutory and non-statutory Bodies of Dibrugarh University, Member of Under Graduate and Post Graduate, Common Purchase Committee University Court, Examination Committee and as Chairman of Work Allotment Committee and General Purchase Committee.


  • Consultancy service to Tea Industry in analyzing soil samples

Extension Service:

  • Providing practical ‘Know how’ of Orchid cultivation and conservation to unemployed Graduates and house wives for entrepreneurship development,
  • Devoting time to establish the agro-technology of some important locally grown Medicinal plants and also trying to convince the common people, the importance of conservation of the same.
  • In providing training to Small Tea Growers on their different problems of cultivation, management and marketing


Research Publications:

  1. Siddhartha Sharma and P.K.Borua. A comprative study on antioxidant concentration in orthodox and CTC tea Camellia sinensis L. 2017. European Jr. of Pharmaceutical and Medical Research. 4: 282-287
  2. Purnima Saikia and P.K.Borua. Significance of different concentration of plant growth regulators (PGRs) on in vitro multiplication of Dendrobium moschatum (Buch.-Ham)Sw. using nodular explants.2017. IOSR Jr. of Biotechnology and Biochemistry. 3: 54-57
  3. Purnima Saikia and P.K.Borua: Role of different concentrations of PGRs (Plant Growth Regulators) on in vitro multiplication of Dendrobium fimbriatum var oculatum using nodal segments. 2017.  Intl. Jr. of Biotechnology and Biochemistry. 3: 98-100
  4. Aditi Smith Gogoi and P.K.Borua: Prophiling of total polyphenols and pigments in tea (Camellia sinensis (L) O Kuntze) in various seasons for manufacturing black tea and green tea. 2017. Intl. Jr. of Food and Nutritional Science. 6: 56-67
  5. Gaurab Gogoi, P.K.Borua, D.Chetia “GA3 assisted seed dormancy breaking in Abelmoschus moschatus Medik. Subsp.moschatus.”2016 Agronomical Research in Moldavia, XLIX(4), 27-34
  6. P.Saikia, P.K.Borua. Role of Plant Growth Regulators (PGRs) in in vitro Seed Germination of Acampe rigida (Buch.-Ham Ex SW) P.F.Hunt, 2016, Intl. J. of Current Research, 8(10), 41595-41597
  7. Sukanya Baruah,P K Borua, Jagadish Mahanta"Profile of Complementary and Alternative Medicine Use by Diabetic and Hypertensive Patients Presenting with Angina in North East India",2016,Intl. Jr of Health Sciences & Research, 6(1),17-25
  8. Sukanya Baruah,P K Borua,Jagadish Mahanta"Insertion/Insertion Genotype of Angiotensin I Converting -Enzyme Gene Predicts Risk of Myocardial Infarction in North East India",2016,Biochemical Genetics, 54(2), 134-146
  9. Sangeeta Das,P K Borua,Rajib Mohan Bhagat"Infiltration Characteristics of Tea Soil under Organic and Conventional Farming Systems in North-East India",2015,Jr. of Ind. Soc.Soil Sciences, 63(4), 449-453
  10. Aditi Smith Gogoi, P K Borua"Morphological characterization of certain garden tea clones from Upper Assam",2015,Two and a Bud, 62 (1), 42-49
  11. Sukanya Baruah,P K Borua,Jagadish Mahanta"Risk factor associated with myocardial infarction in a North East Indian study",2015,Intl. Jr of Health Sciences & Research, 5(9), 41-52
  12. Sangeeta Das,P K Borua"Soil nitrogen and tea leaf properties in organic and conventional farming systems under humid sub-tropical conditions",2015,Organic Agriculture (Springer), 5(2), 1-14
  13. Siddhartha Sharma,P K Borua"Antioxidant Concentration of CTC Graded Tea (Camellia sinensis L.) Differing with size of Tea Particles in Three Different Clones",2015,Intl. Jr. of Plant, Animal and Environmental Sciences, 5(1), 180-184
  14. Shaheen Shah, R N S Yadav&P K Borua"Molecular analysis by RAPD markers of popular tea (Camellia sinensis) varieties of North- East India infested by tea mosquito bug (Helopeltis theivora): ",2015,Int. Jr. of Bioscience 6(1), 318-325
  15. Shaheen Shah, R N S Yadav &P K Borua"Incidence of Helopeltis Infestation in Popular Clones of North-East India in Relation to Agro-climatic Condition",2015,Intl. Jr. of Plant, Animal and Environmental Sciences 5(1), 190-196
  16. Gaurab Gogoi, P K Borua"Standardization Parameters for Critical Problems Encountered in Plant in vitro Culture Technique",2014,International journal of Current Research, 12, 10964-10973
  17. Shaheen Shah,R N S Yadav,P K Borua"Biochemical Defence Mechanism in Camellia sinensis against Helopeltis theiovora",2014,Intl. Jr. of Plant, Animal and Environmental Sciences.4(3), 246-253
  18. Dimpy Das,P K Borua"In vitro propagation of Alternanthera sessilis L. from Internode Explant",2014,British Biotechnology Journal, 4(1), 74-80
  19. S.Das,R.M. Bhagat,P K Borua,T.S. Barman,U. Boruah"Effect of Organic Amendments on Some Soil and Biochemical Parameters under Conversion and Newly Planted Organic Tea",2013,Two and Bud, 58, 65-69
  20. Pallabi Dutta,P K Borua ” Promising Indigenous Rice Cultivars of Dhemaji District, Assambased on panicle traits,2012,Oryza ,49(2), 93-96
  21. Pallabi Dutta,P K Borua"Phenotypic Diversity of Panicles and Nutritional traits of Some Widely Cultivated Indigenous Deep-water Rice (Oryza sativa L.) cultivars of Dhemaji District, Assam (India)",2011,Int. Jr. of Food Safety, Nutrition and Public Health, 4(2/3/4), 167-174
  22. Dimpy Das,P K Borua"Column Chromatography for Isolation of Andrographolide from in vitro Grown Medicinal Plant Andrographis paniculata Wall. Ex Nees",2011,Int. Jr. of Applied Biology & Pharmaceutical Technology, 2, 571-575
  23. Pallabi Dutta, P K Borua"Classification of some indigenous rice (Oryza sativa L.) cultivars of Dhemaji District based on Amylose/Amylopectin content and their future prospect",2011,Proceedings of UGC sponsored National Seminar onPlant Resources Management and Conservation strategies in N.E. Region, 249-254 (ISBN 978-93-81139-47-9)
  24. Dimpy Das, P.K.Borua. “Somatic embryogenesis in Medicinal plant-Andrgraphis paniculata (Burm.f)Wall”, 2011 Proceedings of UGC sponsored National Seminar onPlant Resources Management and Conservation strategies in N.E. Region, 255-259 (ISBN 978-93-81139-47-
  25. D.K.Sarmah, M. Borthakur, P K Borua"Artificial Seed Production from encapsulated PLBs regenerated from lef base of Vanda coerulea Grifft. Ex Lindl – an endangered orchid",2010,Current Science, 98, 686-690
  26. K P Sarma, S C Nath & P K Borua"Studies on Genetic Variability for Yield Attributing Characters Among F2 Progeny Clones of Lemongrass (Cymbopogon flexuosus L. Stapf.). ",2009,Bulletin of Life Sciences XV, 25-36
  27. P. Baruah, P K Borua"Sprouting behavior of rhizomes of Ramie (Boehmeria nivea L. GAUD) varieties under different levels of fertilizers",2006,Sprouting behavior of rhizomes of Ramie (Boehmeria nivea L. GAUD) varieties under different levels of fertilizers, 26, 1-5
  28. Rajen Ch. Saikia,Aniruddha Sarma,Tarun Ch. Sarma,P K Borua"Comparative study of essential Oils from leaf and inflorescence of Java citronella (Cymbopogon winterianus Jowitt)",2006,Journal of Essential Oil Bearing Plants. 9, 85-87
  29. Dimpy Das, P K Borua"Effect of cytokinin on induction and multiplication of multiple shoot from nodal segment of Andrographis paniculata Wall ex. Nees and Bacopa monnieria L",2005,Bulletin of Life Sciences, XI, 1-6
  30. Bidyadhar Borthakur, P.K.Borua. On largest mushroom family of Nambar Reserve Forest, Golaghat, Assam, India. 2004, Ad.Plant Sci.17: 533-536
  31. A. Choudhury, P K Borua,"Estimates of heterotic effects of spikelet characters under low temperature conditions in Boro rice.", 2002, Annals of Agri Bio Research, ,7 ,17-20
  32. J Barukial,P. Gogoi,P K Borua"Enumeration of mosses and their ecology of proposed Joydihing wild life sanctuary, Assam, India",2002,Advance in Plant Science, 15, 97-102
  33. J Barukial,P. Gogoi,P K Borua"A checklist of Bryophytes of Brahmaputra valley, Assam, India",2002,Advance in Plant Science, 15, 89-94
  34. J Devi,P K Borua"Morphological and quality traits in eight indigenous rice (Oryza sativa L.) varieties of Assam",2002,Plant Archives, 2, 111-113
  35. S. Chakrovorty, P K Borua"Determination of seed yield through its components in blackgram under rainfed situation",2001,Water and land management including CAD for socio economic upliftment of N.E. region, pp 139-141
  36. K.K.Sarma, S.C. Nath, P.K. Borua. Morphology of certain Cymbopogon flexuosus (Nees Ex. Steud), Wats. Variants with emphasis to ligule, auricle, lamina base and stem node. 2001, J.Econ & Taxon Bot. 19, 143-151
  37. A. Deb Choudhury, P. Talukdar, P K Borua"Cold- stress responses in Boro rice ecosystem",2001,Water and land management including CAD for socio economic upliftment of N.E. region pp.89-94
  38. K.P. Sarma, S C Nath, P K Borua"Karyomorphology of Litsea cubeba (Lauraceae). ",2000,Cytology and Genetics, 1, 77-79
  39. Bidyadhar Borthakur, P K Borua"Agaricales of Nambar Reserve Forest, Golaghat,Assam, India",2000,Advance in Plant Science, 13, 609-613
  40. Bidyadhar Borthakur P K Borua"Ethnobotanical study of mushroom flora of Nambar Reserve Forest, Golaghat", 1999,Mendel International Journal, 16, 103
  41. Bijit Bhattacharyya,P K Borua,B. Bhattacharyya"Comparative response of yield components in Solanum khasianum Clarke to different doses of gamma ray treatments", 1999, Advance in Plant Sci ence, 12, 67-71
  42. K. K. Sarma, S.C. Nath, P K Borua"Karyomorphological studies in Cymbopogon flexuosus", 1999, J. Cytol Genet, 34, 16
  43. P K Borua, J Devi. “Colchicine induced variability in physiomorphological and biochemical traits in rice,1998,Oryza, 35, 127-129
  44. S. Chakroborty, P K Borua"Inheritance of seed yield and its components in blackgram (Vigna mungo L. Hepper). ",1998, Indian J.Genet, 58, 225-227
  45. S. Chakroborty, P K Borua"Heterosis for yield and its components in blackgram (Vigna mungo L.Hepper)", 1998,Bulletin of Life Sciences 8, 69-72
  46. B K Borthakur, P K Borua"Effect of certain fungicides on cytological behaviour of tea plant",1998,Two and Bud 44, 16-17
  47. S. Chakroborty, P K Borua"Stability for seed yield in blackgram", 1998, Advance in Plant Science 10, 185-188
  48. T. Thoibi Devi, P K Borua"Meiotic behaviour and pollen fertility in three species of Zephyranthes (Amaryllidaceae).", 1997,Biologia Plantarum, 39, 355-360
  49. S. Chakrabarty, P K Borua"Phenotypic stability for phenological traits in blackgram (Vigna mungo L. Hepper).", 1997,Legume Research 20, 185-188
  50. B. Bhattacharyya, P K Borua,P. Talukdar"Induced micro-mutations in Solanum khasianum Clarke.", 1996, J. Nuclear Agricultural Biology 25, 164-171
  51. T. Thoibi Devi, P K Borua"Karyotype analysis of three species of Zephyranthes (Amaryllidaceae)", 1996, J Cytol. and Genet. 31, 15-22
  52. S. Chakrovorty, P K Borua"Gene action for seed yield and its components in blackgram (Vigna mungo L.Hepper)", 1995,Bull.Pure and Applied Science 14, 77-82
  53. P.K.Borua. ‘Karyomorphological studies of seven Albizzia species used in tea plantation of North East India’. 1995, ‘Genetic Research and Education: Current Trends and the Next Fifty Years’ Ind.Soc.of Genet. & Pl. Breed. Vol.III: 1441-1448
  54. A. Boruah, P K Borua"Cytogenetic relationship between two locally grown Cultivars of chilli (Capsicum annuum L.)",1995,Perspectives in Cytology and Genetics 8, 521-527
  55. A. Boruah, P K Borua"Somatic chromosome study of six locally grown cultivars of chilli.(Capsicum annuum L.). ",1994,Jr.Assam Science Society36, 104-111
  56. T. Thoibi Devi, P K Borua"Giemsa C-banding pattern in Zephyranthes grandiflora Lindi. ",1994,Recent Advances in Life Sciences, 1, 129-136
  57. A Boruah, P K Borua"Meiotic studies of some locally grown cultivars of chilli (Capsicum annuum L.).", 1994,Recent Advances in Life Sciences,1, 137-142
  58. H. Saikia, P K Borua"Karyotype analysis of Citrus decumna Linn and Citrus aurantium Linn. ",1994,Recent Advances in Life Sciences, 1, 119-128
  59. A. Boruah, P K Borua"Cytological study on two locally grown cultivars of chilli (Capsicum annuum L.).", 1994, Bulletin of Life Sciences IV, 67-72
  60. A. Boruah, P K Borua"Cytological study on two locally grown cultivars of chilli (Capsicum annuum L.). ",1994, Bulletin of Life Sciences IV, 67-72
  61. P K Borua "Morpho-phenology of ten horti-silvicultural trees of tea plantations",1993,journal of Tree Science, 12, 95-98
  62. P K Borua "A study on the blossom biology of Solanum mammosum L., a solasodine yielding exotic species", 1991,Bulletin of Life Sciences, 1, 27-32
  63. P K Borua "Failure in an interspecific cross between Solanum khasianum clarke and Solanum mammosum L.", 1990, Euphytica(Netherland), 46, 1-6
  64. P K Borua "A note on floral morphology of Solanum mammosum L.",1988,Indian Journal of Forestry, 11, 210-214
  65. P K Borua "Morphology of ten shade tree species used in tea plantations of North east India", 1988, Jr.Assam Science, 31, 12-22
  66. P K Borua "Heterostyly in Solanum mammosum L., a solasodine yielding exotic solanum species", 1987,Jr.Assam Science, 29, 6-11
  67. P K Borua "An interspecific breeding programme between Solanum khasianum Clarke and Solanum mammosum L", 1987, Biology, cultivation & utilization of medicinal and aromatic plants, Meghalaya, pp.35-41

Books and book Chapter

Book chapters:

  1. P.K.Borua, 1997. Alakananda Boruah.’Influence of karyotype on the ecotype formation of Chilli (Capsicum annuum L.)’, People of the Himalayas : Ecology, Cultivation, Development and Change, Kamala Raj Enterprises. Pp.97-100
  2. P.K.Borua. 2000 ‘Pariparshikata aru iar paribartan’ Dibrugahrar Buranji, published in 66th Conference of Assam Sahitya Sabha. Pp.131-138
  3. Popy Santana Bharali, P.K.Borua, 2003. ‘Diversity of orchid flora of Dibru-Saikhowa National Park and Biosphere Reserve, Assam. Biodiversity of Eastern Himalayan Protected Areas’. Book published by the Dept. Of Botany, Handique Girls College, GHT, pp.47-57
  4. P.K.Borua et al. 2004-2005. A Text Book of ‘Environmental Studies’. Published by M/S Banlata, Dibrugarh (ISBN-81-7339-392-3).
  5. Dimpy Das, P.K.Borua. 2005 ‘Study on the effect of different concentrations of plant growth regulators (PGRs) on in vitro seedling growth of Andrographis paniculata Wall ex Nees’. Book on Science & Technology for Regional development : Cases for North East India published by Tezpur University. Pp.151-156
  6. P.K.Borua. 2011. ‘Uttar Purbanchalar Orchid Boichitrata aru Iar Sangrakhyan.’ Arohan – a Souvenir published on the occasion of the 48th Conference of Assam Science Society. Pp.101-107

Upcoming Events

News & Events