Effects of various fertilizer mixture applications and harvesting time on main volatile compounds of thyme (Thymus sipyleus BOISS. subsp. sipyleus BOISS. var. sipyleus L.)

• Main Authors: Nevriye Sicim, Samim Yaşar
• Format: Article
• Language: English
• Published: Isparta University of Applied Sciences Faculty of Forestry 2021-06-01
• Series: Turkish Journal of Forestry
• Subjects: thyme; fertilizer mixture applications; harvesting time; volatile compounds; spme; gc-ms; kekik; gübre karışımı uygulamaları; hasat zamanı; uçucu bileşenler
• Online Access: https://dergipark.org.tr/tr/pub/tjf/issue/63166/893828

The thyme (Thymus sipyleus BOISS. subsp. sipyleus BOISS. var. sipyleus L.) plant was rooted from its natural environment at an altitude of 1750 m from Beyşehir Muslu Yayla location and was cultured at 1345 m altitude in Beyşehir İslibucak. Nitrogen + Phosphorus + Potassium (K1), Micro Elements (Boron + Copper + Iron + Manganese + Molybdenum + Zinc) (K3) and Nitrogen + Phosphorus + Potassium + Micro Elements (Boron + Copper + Iron + Manganese + Molybdenum + Zinc) (K2 and K4) was used as fertilizer mixtures for thyme production. Plant samples were harvested in three separate periods in August, September and October 2019 and SPME-GC-MS was used for the analysis of its volatile components. The results showed that the applied fertilizer mixtures and the harvest period provided a variety in the amounts of the thyme plant main volatile components. The highest value of p-cymene (43.76%) in the October harvest of thyme produced using K4 fertilizer mixture application, the highest value of γ-terpinene (24.79%) in the August harvest of thyme produced using K4 fertilizer mixture application, the highest value of thymol (20.26%) in the August harvest of thyme produced using K3 fertilizer mixture application and the highest value of carvacrol (67.01%) in the September harvest of thyme produced using K1 fertilizer mixture application were observed.