10.22376/ijpbs.2019.10.1.p1-12 Volume 3 Issue 4 2012(October - December) Species of genus lessThan i greaterThan Hippophae lessThan /i greaterThan commonly called Sea buckthorn grow in more than 30 countries of the world. Belonging to the family of Elaeagnaceae, each and every part of the plant is a source of about 190 bioactive substances which include many antioxidants. Different populations of lessThan i greaterThan Hippophae rhamnoides lessThan /i greaterThan L. growing in Kargil district of Ladakh region of J&K (India) were subjected to the quantification of total phenolic, carotenoid and chlorophyll (a & b) contents in male and female plants. The total phenols across populations ranged from 54.4 to 86.4 mg/0.25g GAE. Chlorophylls and carotenoids varied from 7.74 to 45.02 and, between 0.0170 and 0.0399 mM/0.5g respectively. Comparative evaluations made in male and female plants at inter- and intra- population levels reveal higher contents of almost all these antioxidants in the male sex. Some populations like Barootsog, Andoo, Kanoor and Mingee were found to be promising. DEEPAK GUPTA AND VEENU KAUL Hippophae rhamnoides, phenols, carotenoid, chlorophyll, sex, antioxidant. 447-455