ISSN 2169-303X
International Journal of Medicinal Plants Research ISSN 2169-303X Vol. 14 (9), pp. 001-005, September, 2025. Available online at www.internationalscholarsjournals.org © International Scholars Journals
Full Length Research Paper
Evaluation changing of essential oil of balm (Melissa officinalis L.) under water deficit stress conditions
Hossein Aliabadi Farahani1*, Sayed Alireza Valadabadi1, Jahanfar Daneshian1 and Mohammad Ali Khalvati2
1Islamic Azad University of Takestan branch, Iran.
2Department of Plant-Microbe Intraction, German Research Centre for Environment and Health Munich (HelmholtzZentrum Muenchen), Ingolstaedter 1 Neuherberg, Germany.
Accepted 18 July, 2025
An experiment was carried out using a randomized complete block design with 4 replications to study the effect of water deficit stress on essential oil of balm. The factors studied included 5 levels of water deficit stress that were T1 (100% field capacity), T2 (80% field capacity), T3 (60% field capacity), T4 (40% field capacity) and T5 (20% field capacity) respectively. The results showed that water deficit stress significantly affected biological yield, essential oil yield, essential oil %, leaf yield, height of plant, tiller number, stem diameter, stem yield and internode length in P < 0.01. Highest biological yield and height of plant were achieved under T1, highest essential oil yield was achieved under T3 and highest stem diameter and essential oil % were achieved under T5. The results of this experiment showed that essential oil yield was reduced under water deficit stress but essential oil % increased under this condition.
Key words: Water deficit stress, essential oil, balm.