International Science Community Association Research Journal of Recent Sciences 2277 - 2502 5 11 2016 11 2 Impact of GA3 Seed Pre-Treatment on Seedling growth in Delonix Regia 47 49 EN Javier C. Ramirez-Perez 1 Departmento de Química, Facultad de Biología, Universidad Técnica Particular de Loja, Ecuador and Department of Chemistry, Kent State University at Stark, North Canton, OH 44720, USA S.B. Mohapatra 1 School of engineering & Technology, Centurion University, Jatni-752050, Bhubaneswar, Odisha, India D. Swain 2 School of engineering & Technology, Centurion University, Jatni-752050, Bhubaneswar, Odisha, India R.C. Mohanty 3 School of engineering & Technology, Centurion University, Jatni-752050, Bhubaneswar, Odisha, India P. Das 4 Founder of Science Foundation for Rural and Tribal Resource Development, Odisha, India Bhange H.N. 1 Dept of SWE, CTAE, Udaipur, Rajasthan, India Singh P.K. 2 Dept of SWE, CTAE, Udaipur, Rajasthan, India Purohit R.C. 3 Dept of SWE, CTAE, Udaipur, Rajasthan, India Yadav K.K. 4 Dept of SWE, CTAE, Udaipur, Rajasthan, India Ingle P.M. 1 Dept. of Soil and Water Engineering, CTAE, MPUAT, Udaipur, Rajasthan, India Purohit R.C. 2 Dept. of Soil and Water Engineering, CTAE, MPUAT, Udaipur, Rajasthan, India Bhakar S.R. 3 Dept. of Soil and Water Engineering, CTAE, MPUAT, Udaipur, Rajasthan, India Mittal H.K. 4 Dept. of Soil and Water Engineering, CTAE, MPUAT, Udaipur, Rajasthan, India Jain H.K. 5 Dept. of Agri. Statistics and computer application RCA, Udaipur, Rajasthan, India Singh P.K. 6 Dept. of Soil and Water Engineering, CTAE, MPUAT, Udaipur, Rajasthan, India Gavit B.K. 1 Deptt. of SWE, CTAE, MPUAT Udaipur, Rajasthan, India Purohit R.C. 2 Deptt. of SWE, CTAE, MPUAT Udaipur, Rajasthan, India Singh P.K. 3 Deptt. of SWE, CTAE, MPUAT Udaipur, Rajasthan, India Kothari M.K. 4 Deptt. of SWE, CTAE, MPUAT Udaipur, Rajasthan, India Jain H.K. 5 Deptt. of Agriculture Stat and Computer Applications, RCA, MPUAT Udaipur, India Meena Rajesh Kumar 1 Department of Pure and Applied Chemistry, University of Kota, Kota- 324005 Rajasthan, India Chouhan Neelu 2 Department of Pure and Applied Chemistry, University of Kota, Kota- 324005 Rajasthan, India M.K. Singh 1 University Department of Mathematics, Ranchi University Ranchi, 834008, Jharkhand, India Pinky Pandey 2 Department of Mathematics, Nirmala College, Ranchi, 834002, Jharkhand, India Sandeep Rout 1 School of Forestry and Environment, Sam Higginbottom Institute of Agriculture Technology & Sciences, Allahabad-211007, UP, India Sashikala Beura 2 Biotechnology-cum-Tissue Culture Centre, Orissa University of Agriculture and Technology, Bhubaneswar-751003, Odisha, India Neelam Khare 3 School of Forestry and Environment, Sam Higginbottom Institute of Agriculture Technology & Sciences, Allahabad-211007, UP, India > Short Communication 2016 9 13 2016 11 2 An experiment was conducted during the year 2015-16 at the nursery of Biotechnology- cum-Tissue Culture Centre, OUAT, Bhubaneswar, Odisha, India, to study the impact of physical treatments of seeds with GA3 ( i.e. Control, 700, 710, 720, 730, 740, 750, 760, 770,780,790 and 800 ppm concentration ) on seedling growth in Delonix regia. Seeds physically treated with of GA3 at 790 ppm significantly enhanced the plant height (41.66cm), number of bipinnate leaves (8.33), maximum root length (28.66 cm), seedling fresh biomass (6.59 g) and dry biomass (2.55g) at 45 Days after sowing (DAS). Hence, it may be concluded that seeds pre- treated with GA3 at 790 ppm play an important role for obtaining better quality seedlings of Delonix regia. Copyright@ International Science Community Association