A 5-year-old D. odorifera plantation located in Xiashi Arboretum (22° 60′ N, 106° 53′ E), Pingxiang City, Guangxi Zhuang Autonomous Region (GZAR) was selected for this study. Three chemicals used were: 0.1 mol /L hydrogen peroxide (H₂O2), 1.0 mol/L (pH=2.4) acetic acid (CH₃COOH) and 1.0 mol/L sodium chloride (NaCl). Distilled water was injected as a control. Sixty trees of similar size, all without heartwood were selected for a single-tree plot experiment with 15 replicates for each treatment. A tiny drill was used to detect which trees have or don't have heartwood. In May 2017, an injection hole of 1 cm diameter and 5 cm deep was drilled at a downward angle of 45 &#8451 at 1.3 m from the ground on each tree. An amount of 50 ml solution was injected into each tree over 8 h period with a 5 ml syringe, and the hole was sealed with a cork after injection. Five trees per treatment were harvested at one, three and six months after injection treatment. At the same time, three trees with heartwood were selected to collect natural heartwood.

Hydrogen peroxide-induced Jiang Xiang was closest to natural heartwood, and the essential oil components met the standards for high-quality Jiang Xiang, while the induction effects of acetic acid and sodium chloride were unsatisfactory. Thus, this study indicates that hydrogen peroxide has the potential to induce Jiang Xiang production in Dalbergia odorifera.