International Science Community Association International Research Journal of Environmental Sciences 2319 - 1414 6 4 2017 04 22 Germination of Bursera bipinata (DC.) Engl and Bursera glabrifolia (H.B.K.) Engl under pre-germinative treatments 13 17 EN Srinivasa Rao Vattikonda 1 Department of Zoology, Nizam College, Osmania University, Hyderabad, Telengana State, India Sabita Raja Sangam 2 Department of Zoology, Nizam College, Osmania University, Hyderabad, Telengana State, India Prabhakaran P.* 1 Department of Zoology, Ayya Nadar Janaki Ammal College, Virudhunagar District, Sivakasi-626124, India Rajan M.K. 2 Department of Zoology, Ayya Nadar Janaki Ammal College, Virudhunagar District, Sivakasi-626124, India I. Vásquez-García 1 Universidad Autónoma de Chapingo, C.P. 56230, Texcoco, México L. Mohedano-Caballero 2 Universidad Autónoma de Chapingo, C.P. 56230, Texcoco, México V.M. Cetina-Alcalá 3 Colegio de Postgraduados Campus Montecillo, C.P. 56230, Texcoco, México > Research Paper 2017 1 29 2017 04 22 The Bursera family has been hardly studied in Mexico even when it is of major ecological and economic importance, for regeneration including preservation of biodiversity in deciduous tropical forests and the use for wood and resins by the human communities dwelling therein. This study was conducted in a greenhouse of Colegio de Postgraduados, campus Montecillo, Estado de México, to assess the seed germination of Bursera glabrifolia and Bursera bipinatausing 240 seeds from each species, with 60 seeds per treatment. Pre-germinative treatments in the study involved the soaking of seeds under different conditions: i. 95% sulphuric acid for 5 minutes; ii. hot water at 80ºC for 3 minutes; iii. 300 ppm Gibberellin AG5 for 24 h.; iv. water at 20 degrees as the control group. The substrate used was constituted by25%agrolite, 25% vermiculite and 50% peatmoss. Three seeds were putper 220 CC plastic tree tube. Three months after seeding the germinated seeds were counted. The largest number of germinated seeds was obtained with the gibberellin AG5 treatment, and the second largest was obtained from the control group. Treatments with sulphuric acid and hot water had a low effect on seed germination. Copyright@ International Science Community Association