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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.
*Corresponding author. E-mail:
farahani_1362@yahoo.com.
Accepted
28 April, 2009 |
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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. |
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