|
Abstract
|
Hyssop (Hyssopus ofcinalis L.) is herbaceous perennial plants of Lamiaceae family grown in
Europe, the Middle East, Asia, and Northern Africa. Field experiment was carried out during 2015/2016.
The experimental design was laid out as factorial in randomized complete block design that fve levels
of fertilizer treatment (0, 5, 10, 15 ton ha-1 vermicompost and N 75 kg ha-1 source of urea and three
harvesting time (pre-flowering, blooming and full flowering stages) were arranged in experimental
plots. Results indicated that percentage of essential oil varied from 0.474 to 0.585 in different stage of
plant growth. Vermicompost levels had a promoting influence on most of growth traits and accelerated
essential oil accumulation. With enhancing levels of vermicompost essential oil content increased and
use of vermicompost in high level (15 ton ha-1) produced the maximum (18.46 kg ha-1) essential oil yield.
Similarly, the forth level of vermicompost (15 ton ha-1) had signifcantly effect on Chlorophyll, carotenoid,
total flavonoids and anthocyanins. The greatest plant high, stem diameter, number of secondary and
flowering branches as well as dry weight was gained for plant grown in high levels of vermicompost.
Overall, we conclude that utilization of 15 ton ha-1 vermicompost and harvest Hyssop at full flowering
stage is recommended for optimizing the content of essential oils and photosynthetic pigments and
morphological characteristics in Hyssop.
|