Plant-water relations sage (Salvia officinalis L.)'s yield, essential oil production and and quality on effects: Biometric and physiological reviews

In this research Salvia officinalis L. var. Extrakta was used as material in the Bornova ecological conditions in 2011, 2012 and 2013. We were investigated on effect of different nitrogen applications and water regimes in yield, qualty and biochemical parametres. In this context, it is established two different experiments, including pot and field trials. Field trials were arranged two-factor split-plot experimental design, with four replications. Experimental factors were water regimes of main plot: S1(irrigated when it's needed), S2( 20 days dry before harvesting) and S3(40 days dry before harvesting) and the sub-plot nitrogen applications (nitrogen free and 6 kg/da). It was determined that plant height (cm), gren herbage yield (kg/da), drug herbage ratio (%), drug herbage yield (kg/da), drug leaf ratio (%),drug leaf yield (kg/da), stem ratio(%), stem yield (kg/da), dry matter ratio (%), dry matter yield (kg/da), essential oil ratio (%), essential oil yield, essential oil content (%), antioxidant capacity (μmol FRAPgKM) and relative water content (gg-KM). Particularly, effects of different water applications (80%, 60%, 40% and 20% of field capacity) on biochemical characteristics were examined in pot experiments. In this research,water use efficieny (gg-KM), antioxidant capacity (μmol FRAPgKM), antiradical content (TROLOX/g), flavonoid content (mg RUTIN/g), chlorophyll a, b content (mg/ml) and carotenoids content (mgg-KM), fresh leaf-stem weight (g/plant), dry leaf-stem weight (g/plant), essential oil ratio (%), essential oil content (%) were determined. As the result of field and pot experiment, water deficit was reduced to yield parameters, chlorophyll and carotenoids content, while it was increased to essential oil ratio (%), water use efficiency and antioxidant capacity. The higest essential oil ratio was obtained as a mean 2.07% from S3 water doses. Both experiments as well as the principal main component was α+β thujone and it has been found to show a large variation. Considering all the water and nitrogen applications of field trials showed that nitrogen fertilization were distinguished, the data on plants where water applications S2.