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.

Aerial parts of both varieties(Salvia euphratica Montbret et Aucher ex Benth. var. euphratica and Salvia euphratica Montbret et Aucher ex Benth. var. leiocalycina) were collected in Malatya, Turkey in June 1999.

Ninety-five compounds in var. euphratica and 94 compounds in var. leiocalycina were characterized representing 93% and 95% of the total components detected, respectively, with 1,8-cineole (13.8% and 15.2%) and myrtenyl acetate (15.9% and 13.9%) as main constituents.

Plant materials were collected during the flowering period in July 2002 from the Dumluca Mountain in the vicinity of Divrigi village of Sivas city at 1900 m altitude and Saksagan Gorge in Saimbeyli village of Adana city at 1900 m altitude.

The flower, stem and root oils of T. cadmeum ssp. orientale collected from the Adana location were characterized with alpha-thujone (25%, 5.2%), cis-linalool oxide (6.8%, 12.8%), trans-chrysanthenyl acetate (5.8%, 8.5%) for flower and stem oils, and beta-eudesmol (10.3%, 6.2%, 13.8%); in addition, stem oil contained 1,8-cineole (6.6%) and root oil contained hexadecanoic acid (6.0%), spathulenol (5.8%) and beta-muurolol (5.3%). The flower and stem oils of T. cadmeum ssp. orientale collected from the Sivas location were characterized with camphor (25.9%, 14.8%), borneol (15.4%, 25.8%) and alpha-thujone (7.8%, 5.5%); in addition, stem oil contained 1,8-cineole (7.4%) and root oil contained nonacosane (16.2%), spathulenol (6.8%) and hexadecanoic acid (5.8%).