Abstract: The fruit oil content of 7-years-old hybrid neem tree which was produced from Azadirachta indica A. Juss and Melia azedarach by somatic hybridization technology, and the fatty acid composition of seed kernel oil were analyzed. Results showed lower oil content in fruit peel and fruit pulp, i.e. 1.65% and 1.53%, respectively. However, high oil content (39.20%) in seed kernel was found. Seed kernel oil was analyzed by GC-MS and six kinds of fatty acids were determined. There were linoleic acid(C₁₈:2)67.00%, oleic acid(C₁₈:1)18.03%, palmitic acid (C₁₆:0)8.96%, stearic acid (C₁₈:0)3.94%, arachidic acid (C₂₀:0)0.35% and unknown fatty acid 1.72%. The content of unsaturated fatty acid of seed kernel oil was 85.03%. Compared with the M.azedarach, the oil content of hybrid neem tree seed kernel was 1.6 percentage points higher.

Key words: Azadirachta indica A. Juss, Melia azedarach, somatic hybridization, fatty acid