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Dr. P Ratha Krishnan

Dr. P Ratha Krishnan
Name Dr. P Ratha Krishnan
Designation Principal Scientist & Head
Division Section of Social Sciences
Qualification Ph.D.
Specialisation Forestry
Contact rathakrishnantuty@gmail.com
Areas of Interest Tree Improvement, Agroforestry, Agriculture Extension

  1. Verma A, Kumar P, Rathakrishnan P, Saresh NV, Kumar S, Kumar P. Seedling vigour of Prosopis cineraria (L.) in response to different growth media and polybag sizes in arid climatic conditions. Range Manag Agrofor. 2018;39(2):206–214.

  2. Prakash KM, Manoj PS, Rathakrishnan P. Rocky terrain is not a barrier to the ginger women. Indian J Arecanut Spices Med Plants. 2016;18(12):38–39.

  3. Ramesha MN, Patil SL, Rathakrishnan P, Seshadri BN. Effect of pre-sowing treatments on Prosopis pallida seed germination attributes. Range Manag Agrofor. 2016;37(1):104–107.

  4. Rathakrishnan P, Venkatesan K. Partitioning of rainfall in Acacia species of Indian Thar Desert. Indian J Agrofor. 2016;18(1):10–15.

  5. Rathakrishnan P, Dudawat K. Nursery management information system: an efficient tool for nursery management. Indian For. 2016;142(6):542–546.

  6. Rathakrishnan P, Jindal SK. Khejri, the king of Indian Thar Desert, is under phenophase change. Curr Sci. 2015;108(11):1987–1990.

  7. Rathakrishnan P, Indumathy R. First report on off-season flowering and fruiting in Khejri: the king of Thar Desert. Indian For. 2015;141(2):225–226.

  8. Kalia RK, Rathakrishnan P, Tewari JC. Limitations, progress and prospects of applications of biotechnological approaches in improvement of Prosopis: an important genus of arid regions. Ann Arid Zone. 2014;53(1):33–41.

  9. Rathakrishnan P, Tewari JC, Bhati TK. CAZRI gum inducer for gum production from Acacia senegal: potential and SWOT analysis. Ann Arid Zone. 2013;52(1):39–44.

  10. Rathakrishnan P, Tewari JC, Harsh LN, Roy MM. Thorn-less Prosopis sweet pod plant type in Rajasthan—silvicultural practices and its acceptance by people. Crop Improv. 2012;39:323–324.

  11. Divakara BN, Rathakrishnan P. Clonal variability and divergence studies in Tamarindus indica L.: a multipurpose fruit tree. J Biodivers Ecol Sci. 2012;2(1):31–41.

  12. Ramesha MN, Dwivedi VK, Rathakrishnan P. An overview of forest cover and changes in greening pattern of Bundelkhand. Indian For. 2012;138(11):1014–1023.

  13. Sivaprakash M, Balasubramanian P, Rathakrishnan P. Lance nematode pathogenicity on Pterocarpus santalinus seedlings. Indian J Agrofor. 2011;13(1):109–110.

  14. Rathakrishnan P, Rajapandian JS. Standardization of grafting technique and season for Simarouba glauca. Range Manag Agrofor. 2010;B:165–166.

  15. Rathakrishnan P, Indumathy R. Korangadu: a successful traditional silvipastoral management system in semi-arid tracts of Tamil Nadu. Range Manag Agrofor. 2010;B:182–184.

  16. Rathakrishnan P, Kumar P. Early-stage aboveground interaction in wheat–Jatropha agrisilviculture system. J Agric Sci Technol. 2010;4(2):20–26.

  17. Ravi R, Divya MP, Rathakrishnan P. Evaluation of fodder crops under Ailanthus excelsa Roxb.-based agroforestry system. Indian J Agrofor. 2009;11(2):90–93.

  18. Rathakrishnan P, Paramathma M. Evaluation of growth, physiological and biochemical traits of grafted neem (Azadirachta indica A. Juss.) progenies in Tamil Nadu. Indian J Agrofor. 2009;11(2):34–39.

  19. Rathakrishnan P, Paramathma M. Potentials and Jatropha species wealth of India. Curr Sci. 2009;97(7):1000–1004.

  20. Sivaprakash M, Balasubramanian P, Rathakrishnan P, Prabhu. Pathogenicity of lance nematode Hoplolaimus seinhorsti on red sanders (Pterocarpus santalinus) tree seedlings. Indian J Nematol. 2009;39(1):54–58.

  21. Rathakrishnan P. Special plantation drive—towards livelihood security in Bundelkhand, Uttar Pradesh. Curr Sci. 2008;95(6):718–719.

  22. Rathakrishnan P, Gupta BC. Study of different agroforestry systems practiced in Vellore district, Tamil Nadu. Range Manag Agrofor. 2007;28(2):73–75.

  23. Rathakrishnan P, Rajapandian JS, Kumaran K, Neelakantan KS. First report on natural regeneration of Simarouba glauca. Indian For. 2005;131(1):129–130.

  24. Selvam KP, Bhavanisankar K, Jayapragasam M, Kumar A, Rathakrishnan P, Vijayaraghavan A, Adalarasan R. Effect of growth regulators and planting media on rooting of cuttings in Nothapodytes nimmoniana. Indian J Plant Physiol. 2004;9(3):308–312.

  25. Rathakrishnan P, Paramathma M, Rajapandian JS. Nursery studies on the influence of microbial biofertilizers on growth and biomass accumulation in poly-potted Simarouba glauca seedlings. J Non-Timber For Prod. 2004;11(1):57–60.

  26. Rathakrishnan P, Rajendran P, Divakara BN. Albinism in Simarouba glauca. Indian For. 2003;129(9):1167–1169.

  1. Certificate of Appreciation for services, participation, excellent arrangements, and field and indoor explanations during Farmers’ Day–2001, held at TNAU, Coimbatore, 9–12 January 2001.

  2. First Prize, Student Project Scheme (2000–2001), awarded by Tamil Nadu State Council for Science and Technology (TNSCST), Chennai.

  3. Dr. S. Krishnamurthi Prize for Best Student in Forestry, 2001, Tamil Nadu Agricultural University (TNAU), Coimbatore.

  4. Merit Scholarship, Tamil Nadu Agricultural University, Coimbatore, awarded during 2002–2005.

  5. Th. A. Venkataraman Award for Best Ph.D. Student (Forestry), 2004, Tamil Nadu Agricultural University, Coimbatore.

  6. Young Scientist Award–2004 for Best Paper, awarded jointly by Tamil Nadu State Council for Science and Technology (TNSCST), Chennai, and Sri Paramakalyani College, Alwarkurichi.

  7. Certificate of Appreciation from IUFRO, Vienna, Austria, for contribution as Course Assistant in the IUFRO–SPDC Pre-Congress Training Course–2 on “International forest-related initiatives and agreements and their implementation in the context of national forest programmes – Linking research and science with practice”, held at Gympie, Australia, 2–5 August 2005.

  8. Invited lecture titled “Region-specific strategies for afforestation – A viable option” at the 3rd International Conference on Climate Change and Sustainable Management of Natural Resources, Institute of Allied Sciences and Computer Applications, ITM University, Gwalior, 5 February 2012.

  9. Question Paper Setter:
    a) M.Sc. (Agroforestry), Centre for Forestry Education, AAI-DU, Allahabad (2008).
    b) B.Sc. (Forestry), Forest College and Research Institute, TNAU, Coimbatore (2012).

  10. Invited lecture titled “Energy plantation: technical issues and options” at the Business Workshop on Energy Plantation for Sustainable Biomass Power in India, organized by Dalkia Energy Services Ltd., New Delhi, held at Country Inn & Suites by Carlson, Jaipur, 27 April 2012.

  11. Certificate of Appreciation (Co-PI) for outstanding contribution to the development of Prosopis juliflora–based value-added products under the NAIP sub-project “A value chain on value-added products derived from Prosopis juliflora”, awarded during Regional Committee No. VI meeting, CAZRI, Jodhpur, 16 November 2012, by NAIP, ICAR, New Delhi.

  12. Best Paper Award and Certificate of Excellence at the International Conference on Impact of Climate Change on Food, Energy and Environment, Sathyabama University, Chennai, 4–6 July 2013.

  13. Invited lecture (in Hindi) titled “Trees for soil conservation and watershed management in arid regions”, delivered at TAFE Kisan Mela mein Krishi Vaigyanikon dwara diya gaya vyaakhyan, Jetpur village, Pali district, Rajasthan, 25 February 2014.

  14. Second Runner-up Award for Oral Paper Presentation at the International Symposium on New Dimensions in Agrometeorology for Sustainable Agriculture, for the paper titled “Weather-driven flowering and fruiting phenology changes in Prosopis cineraria L.: A multipurpose tree of the Indian arid region”, held at GBPUA&T, Pantnagar, 16–18 October 2014.

  15. Lead lecture titled “Agroforestry and quality planting materials for augmenting agricultural productivity”, Session Chairperson, and Valedictory Address delivered at the International Conference on Technology Development on Agriculture, Energy and Environment Engineering for Green World, Vivekanandha Educational Institutions, Elayapalayam, Tiruchengode, Tamil Nadu, 23–24 February 2015.

  16. Chief Guest, 17th Annual Day Celebration, Msgr. Raymond Memorial School, Chempanoda, 20 December 2019.

  17. Question Paper Setter and Evaluator, B.Sc. (Forestry) degree programme, College of Horticulture and Forestry, Agriculture University, Kota, Rajasthan, 2014.

  18. External Examiner for practical examinations in Wood Anatomy (B.Sc. Horticulture) and Introductory Agroforestry (B.Sc. Forestry), College of Agriculture, Jhalawar, Rajasthan, 4 January 2016.

  19. Special Invitee (Expert) at the Policy Workshop on Urban Forestry, organized by Forest College and Research Institute, TNAU, Mettupalayam, 28 April 2017.

  20. Dr. Alapatti Prasada Rao Award–2018 for Best Research Paper (Poster) titled “Site-specific fertility management for productivity enhancement of black pepper and nutmeg”, presented at SYMSAC–IX National Symposium on Spices, Medicinal and Aromatic Crops, SASRD, Nagaland University, Medziphema, 15–17 March 2018.

  21. External Expert for Ph.D. (Forestry) Thesis Evaluation and Viva-Voce (Mr. P. Natarajan), Forest College and Research Institute, TNAU, Mettupalayam, 2018.

  22. External Examiner for M.Sc. (Forestry) Thesis Evaluation (Mr. Sawant Akshay Vijay), Forest College and Research Institute, TNAU, Mettupalayam, 2019.

  23. Member, Interview Board Expert Panel for selection of District Technology Managers (Agriculture, Animal Husbandry, and Fisheries), ATMA, Kozhikode, 25 June 2020.

  24. Coordinator, Certified Farm Advisor Programme, ICAR–Indian Institute of Spices Research (IISR), Kozhikode, for MANAGE, Hyderabad programmes, with effect from December 2019.

  25. Delivered approximately 17 invited lectures in trainings, seminars, workshops, and conferences.

  26. Reviewer for peer-reviewed journals including Indian Journal of Agroforestry and Annals of Arid Zone.

  1. Rathakrishnan P, Manoj PS, Prakash KM, Pradeep B, Aiswarya KK, Deepthi A. KAU directory of women agripreneurs mentored by KVKs of Karnataka, Kerala and Lakshadweep. Kozhikode (India): ICAR–KVK, IISR; 2024. In: Chandregowda MJ, Srinivasa Reddy DV, Rayidu BT, Thimmappa K, Koleker D, Hanji MB, Hershitha D, Deeksha Raj N, editors. Enhancing farmers’ income in Kerala: impact of technologies promoted by KVKs. Bengaluru (India): ICAR–ATARI; 2023. p. 93.

  2. Prakash KM, Rathakrishnan P. Why natural farming? Vikshit Bharat Sankalp Yatra publication. Kozhikode (India): ICAR–KVK, IISR; 2023. 2 p.

  3. Rathakrishnan P, Manoj PS. Krishi Vigyan Kendra – oru notathil (Malayalam). Vikshit Bharat Sankalp Yatra publication. Kozhikode (India): ICAR–KVK, IISR; 2023. 6 p.

  4. Prakash KM, Rathakrishnan P, Manoj PS. Natural farming (Malayalam: Pragathisamrakshana krishi). Extension booklet no. 22. Kozhikode (India): ICAR–KVK, IISR; 2023. 16 p.

  5. Prakash KM, Rathakrishnan P, Manoj PS. What is natural farming? Extension pamphlet. Kozhikode (India): ICAR–KVK, IISR; 2023. 2 p.

Sl. No. Role (PI / Co-PI) Project Title Period Funding Agency Budget (₹ Lakhs)
1 Principal Investigator Standardization of nursery technique, spacing and pruning practices for Jatropha curcas (L.) May 2007 – Dec 2010 (NRCAF, Jhansi) NRCAF (ICAR) —
2 Associate (Co-PI) Model Watershed for sustaining agricultural productivity and improved livelihood — MoRD, New Delhi —
3 Associate Demonstration of agroforestry technologies for enhancing livelihood opportunities in different agro-climatic zones of Tamil Nadu — IFGTB, Coimbatore —
4 Associate Agronomical studies of Jatropha with different crop sequences and pruning regimes — NRCAF (ICAR) —
5 Associate Initiation of pruning and its intensity on productivity of Albizia procera based silvipastoral systems — NRCAF (ICAR) —
6 Associate Augmenting pistilate flowers using growth regulators and chemicals in Jatropha curcas — NRCAF (ICAR) —
7 Associate Studies on arbuscular mycorrhizal fungi of important multipurpose tree species — NRCAF (ICAR) —
8 Principal Investigator Evaluation of growth performance and adaptability of Acacia and Prosopis species in Rajasthan July 2011 – June 2013 CAZRI (ICAR) —
9 Associate Mega Seed Project on seed production in agricultural crops April 2011 – May 2013 ICAR – CAZRI —
10 Associate Rehabilitation of degraded rangeland and stabilization of production in arable arid land of Thar Desert, India April 2011 – July 2013 UNESCO —
11 Associate Value chain on value-added products derived from Prosopis juliflora Jan 2011 – June 2014 NAIP, ICAR (World Bank) 98.00
12 Associate Improvement of arid zone trees for agroforestry systems Oct 2011 – Sept 2015 CAZRI (ICAR) —
13 Associate Productivity and energetics of agricultural production systems in Leh July 2012 – June 2014 CAZRI (ICAR) —
14 Principal Investigator Participatory tree nursery establishment for enhancing livelihood and employment generation in arid Rajasthan May 2014 – April 2017 SEED, DST 34.91
15 Associate (Co-PI) Carbon sequestration potential of agroforestry systems in rainfed agro-ecosystems July 2014 – June 2017 CAZRI (ICAR) NA
16 Associate (Co-PI) Enhancing economic viability of coconut-based land use systems in Kerala 2016 – 2018 Kerala State Planning Board 34.00
17 Associate (Co-PI) Integrated management of pest and disease of vegetables with emphasis on cucurbits 2017 – 2019 Dept. of Agriculture Development & Farmers Welfare, Thiruvananthapuram 3.00
18 Principal Investigator (KVK) NICRA (National Innovations in Climate Resilient Agriculture) 2022-2026 – 2029 CRIDA, Hyderabad 60.00
Name of Student University (Affiliation) Title of Thesis Completed / Ongoing Year of Completion
Mr. Gajender Singh Bundelkhand University, Jhansi M.Sc. (Agroforestry) Completed 2008
Mr. Pavan Kumar Bundelkhand University, Jhansi M.Sc. (Agroforestry) Completed 2009