THE INFLUENCE OF DIFFERENT WATER AND NITROGEN APPLICATIONS ON SOME YIELD PARAMETERS AND ANTIOXIDANT ACTIVITY IN SAGE (Salvia officinalis L.)

Abstract

The effect of different water and nitrogen applications on some yield parameters and antioxidant activity on sage (Salvia officinalis L. var. Extrakta) was investigated. A field trial was arranged in the split plot design with four replications under the Bornova ecological conditions in 2012 and 2013. The following water regimes were used as main plots: S1 (irrigated when it's needed), S2 (20 days dry before harvesting) and S3 (40 days dry before harvesting) and nitrogen applications were used as sub-plots such as 0 kg ha-1 and 60 kg ha-1. The following plant characteristics such as plant height (cm), fresh herbage yield (kg ha −1), drug herbage yield (kg ha −1), drug leaf yield (kg ha −1), essential oil ratio (%), essential oil yield, essential oil content (%), antioxidant capacity (μmol FRAPgDM) were recorded. The highest essential oil ratio was obtained from the S3 water dose such as 2.07%. The main component in the essential oils recovered by both experiments were α+β thujone showing a large variation. Considering the N fertilization combined with the S2 irrigation had positive effect on the characteristics measured. It could be concluded that the antioxidant activity tended to increase as the soil moisture decreased.

Effects of Various Nutrient Sources on Growth and Essential Oil Characteristics of Salvia Officinalis L. in Greenhouse

“…The researcher noted the variety of essential oil components depending on the harvest time. Current findings on the chemical constituents of S. officinalis volatile oil are in line with several previous investigations (Bettaieb et al, 2009;Mossi et al, 2011;Govahi et al, 2015;Sönmez and Bayram, 2017). Numerous factors affect the quality of the volatile oil, which are hard to be determined and distinct from each other.…”

“…Various nutrient sources improve soil chemical and physical characteristics. Several studies supported that nitrogen and other nutrients sources application intensified on total fresh yield and aerial parts of S. officinalis (Ghoushchi et al, 2015;Gerami et al, 2016;Sönmez and Bayram, 2017;Hegab et al, 2018). It was reported that the application of cow manure, vermicompost, Azotobacter, and Azospirillum increased the final yield of S. officinalis compared to the control treatment (Radnezhad et al, 2015).…”

“…As can be seen in the results, the consumption of these fertilizers increased the percentage of volatile oil (Table 5). Various studies had reported an increase in essential oils due to different nutrient sources application (Manukyan, 2011;Abaas, 2014;Ghoushchi et al, 2015;Govahi et al, 2015;Sönmez and Bayram, 2017;Hegab et al, 2018). Nevertheless, increasing the N dose, the production of essential oil decreased (Manukyan, 2011;Ghoushchi et al, 2015).…”

“…This plant does not grow naturally in Turkey. But in recent years, due to the economic values of Salvia species, it has attracted the interest of producers (Bahtiyarca Bağdat et al, 2017;Sönmez and Bayram, 2017). inflammatory activities of S. officinalis were reported according to various studies (Jakovljevic et al, 2019).…”

PHENOLOGICAL CYCLE AND DIURNAL VARIATION EFFECTS ON THE VOLATILE OIL CHARACTERISTICS OF SAGE (Salvia officinalis L.)

“…Salvia officinalis L. (common sage), as a woody perennial herb, is one of the most important commercial species of the genus Salvia which includes nearly 1000 species throughout the Old and New Worlds (Lakušić et al 2013). Salvia officinalis is native to the Mediterranean region but does not exist naturally in Turkey (Sönmez & Bayram 2017). The cultivation of S. officinalis has recently become common in different regions of Turkey.…”