Profile of Dr. R. K. Ranjan

• B.Sc. Agriculture: Rajendra Agricultural University, Pusa, Samastipur, Bihar
• M.Sc. (Ag) (Plant Pathology): Bidhan Chandra Krishi Viswavidyalaya, West Bengal
• Ph.D. (Plant Pathology): Indian Agricultural Research Institute (IARI), New Delhi

Professional Area

• Research Area: Bacterial Wilt & Rice Pathology
• Research Interests: Rice Pathology, Bacterial Diseases, Molecular Detection Techniques, Postharvest Disease Management

KEY PUBLICATIONS:

• Ranjan RK, Dinesh Singh, Baranwal VK (2016) Simultaneous detection of brown rot and soft rot causing bacterial pathogens from potato tubers through multiplex PCR. Curr Microbiol 73(5):652–659.
• Ranjan RK, Dinesh Singh, Sharma P, Dhar S (2015) Characterization and genetic diversity of Ralstonia solanacearum causing brown rot disease of potato. Indian Phytopathol 68(4):368–374.
• Ranjan RK, Dinesh Singh (2015) Occurrence of biovars, races and phylotyping of Ralstonia solanacearum under different agro-climatic conditions. J Pure Appl Microbiol 9(4):2931–2941.
• Ranjan RK, Dinesh Singh (2016) Effect of storage temperature on survival, transmission of solanacearum and quality of potato tubers during storage. Indian Phytopathol 69(4s):294–298.
• Ranjan RK, Rai B, Jha PK (2017) In-vitro screening of plant extracts to control bacterial leaf blight of rice caused by Xanthomonas oryzae oryzae. Environ Ecol 35(2C):1348–1353.
• Ranjan RK, Dinesh Singh (2020) Detection and quantification of solanacearum and spoilage in stored potato at different temperatures. J Pharmacogn Phytochem 9(2):1103–1109.
• Ranjan RK, Dinesh Singh (2020) Effect of temperature and inoculum level on soft rot development in potato and PCR-based detection. J Pharmacogn Phytochem 9(4):1414–1419.
• Ranjan RK, Jha PK, Rai B, Kumari R, Kumar S (2021) Management of bacterial wilt of potato and tomato using resistance inducers. J Pharmacogn Phytochem 10(12):1–6.
• Ranjan RK, Rai B, Jha PK (2017) In-vitro screening of plant extracts to control bacterial leaf blight of rice. Environ Ecol 35(2C):1348–1353.
• Ranjan RK, Rai D, Ahmad A (2024) Impact of fungicides on brown leaf spot of rice caused by Bipolaris oryzae and yield. Int J Adv Biochem Res 8(3):901–904.

Books/ Book chapters:

• Ranjan R.K., Singh D., Rai D. (2021) Post harvest diseases of potato and their management. In: Singh D, Sharma R.R., Devappa V, Kamil D (eds) Postharvest Handling and Diseases of Horticultural Produce. CRC Press, Taylor & Francis Group, pp 305–326.
• Ranjan R.K., Singh D. (2022) Effect of storage temperature on development of potato soft rot disease caused by Erwinia carotovora carotovora and its molecular detection. In: Thind T.S. (ed) Management of Postharvest Diseases and Value Addition of Horticultural Crops. Today and Tomorrow’s Printers and Publishers, pp 155–160.
• Ranjan R.K., Rai D., Jha P.K., Rai B., Patel V.K., Kumar S. (2023) Plant disease scenario under changing climate. In: Manna M.C., Sattar A., Ghosh S., Patel (eds) Climate Resilience Agriculture: A Sustainable Perspective, Chapter 8. Kalyani Publisher, New Delhi, pp 124–138.
• Rai D., Ranjan R.K., Patel V.K. (2023) Scope of microbes for climate resilient agriculture. In: Manna M.C., Sattar A., Ghosh S., Patel (eds) Climate Resilience Agriculture: A Sustainable Perspective, Chapter 9. Kalyani Publisher, New Delhi, pp 139–161.
• Ranjan R.K. (2018) Arbuscular mycorrhizal (AM) fungi in horticultural crops. In: Food, Agriculture and Sustainability. Weswer Books, Germany, pp 11–16.
• Singh D., Ranjan R.K. (2018) Recent advances in management of bacterial wilt of solanaceous crops. In: Recent Approaches for Management of Plant Diseases. Today & Tomorrow’s Printers & Publishers, New Delhi, pp 209–250.
• Singh D., Ranjan R.K. (2018) Diseases of jasmine and their management. In: Diseases of Ornamental Crops. Today & Tomorrow’s Printers & Publishers, New Delhi, pp 31–54.
• Ranjan R.K. (2020) Diseases of Fruit Crops and Their Management. Parmar Publication, Jharkhand, 132 pp. ISBN: 978-81-927825-2-1.
• Ranjan R.K. (2021) Host Plant Resistance. Parmar Publication, Jharkhand, 129 pp. ISBN: 978-81-928932-4-1.
• Ranjan R.K., Singh D., Rai D., Suman K. (2025) Integrated disease management of rice under changing climatic scenario. In: Yadav M., Rathi A.S., Chattopadhyay C. (eds) Dynamics of Crop Diseases and Their Management, Chapter 9. Scientific Publisher, pp 175–202.

A. Department of Plant Pathology and Nematology, PGCA, RPCAU, Pusa, Samastipur-848 125 Bihar, India

M. rkranjan@rpcau.ac.in

T. + 91-9934416674

ORCID: 0000-0002-4711-4035