Dr Ranjit Singh has done BSc (Horticulture) from ANGRAU, Hyderabad; M.Sc. and Ph.D. Horticulture (Floriculture and landscaping) from PAU, Ludhiana.  He joined as Assistant Floriculturist 12 February, 2009 in the Department Floriculture and Landscaping and is presently working as Assistant Professor (Floriculture and Landscaping) in the Department of Floriculture and Landscaping. He has guided 3 Ph.D. and 8 M.Sc. students and guiding 1 Ph.D. students and 2 M.Sc. students as Major advisor. He has developed 8 production technologies and  was associated in the  release of one tuberose variety in the state . He has handled one adhoc  project “Technology for production of Rscus Hypophyllum– aflorist green  through environmental interventions under Indian conditions”  Funded by UGC  asPI.. He has authored 36 research articles, 1 book, 10 book chapters, 3 practical manuals, 22 extension articles and delivered 15 radio/TV talks & 200 extension lectures in different training programmes/ workshops and he is actively handling University landscape responsibilities. 

Selected Research Publications: 

• Kumar R, Singh R, Khanna A, Singh G and Kumar P (2025) Impact of Planting Time on Severity of Alternaria Blight and Yield Losses in African Marigold (Tagetes erecta) Journal of Phytopathology 173(3) e70101 https://doi.org/10.1111/jph.70101 (NAAS rating:  7.11)

1. Kumar R, Kaur N and Singh R (2023)- Phenology, heat unit requirement and heat use efficiency of African marigold under year-round transplanting conditions of Punjab, India Journal of Agrometeorology 25 (4): 560-564 (December – 2023) (NAAS rating: 6.55)
2. Kumar, P., Sharma, S., Singh, R.  Singh P and Kumar (2022). First report of Sclerotinia sclerotiorum causing white rot of marigold in Punjab, India. J Plant Pathol  104 pp435 (NAAS rating: 7.15)
3. Singh R and T Thakur (2022) Mulching effect on soil temperature, weed management, growth and flower yield in rose (Rosa hybrida L.) Journal of Agrometeorology 24(1)103-105 (NAAS rating:  6.55)
4. Singh R and Bala M (2020) Effects of different sources of light as night break on growth characteristics of Korean chrysanthemum (Chrysanthemum morifolium Ramat.) genotypes Bangladesh J. Bot. 49(4): 967-974 (NAASrating: 6.21)