Investigation of volatile oil glands of Satureja hortensis L. (summer savory) and phytochemical comparison of different varieties
Svoboda, K.P.; Greenaway, R.I.
International Journal of Aromatherapy 13(4): 196-202
A study was conducted to determine which intrinsic factors (high fresh weight yield, high dry matter yield, large leaf area, or density, structure and size of oil glands on the plant surfaces) contribute to the high oil yielding performance of summer savory (S. hortensis) cultivars Aromata, Saturn and Compacta. There were no significant differences among the cultivars in terms of fresh weight and dry weight. Volatile oil yield showed clear differences between seed lots. It ranged from 0.9% for the classical type of savory to 3.5% for the 3 high-yielding cultivars. There were no statistical differences in oil composition between the cultivars. On all calyces of all cultivars, the glands were mainly on the surface, not in depressions. There were very few volatile oil glands on the petals. These were mainly on the surface, approximately 5-10 per corolla, evenly distributed and arranged in small groups. On the stems there were very few volatile oil glands, approximately 5 or 6 per cm length for all cultivars. The structure and size of all the volatile oil glands was similar on all surfaces and in all cultivars. The diameter of 20 glands was 123, 123, 124 and 130 micro m for Classic, Aromata, Saturn and Compacta, respectively.