Production of Hyssop (Hyssopus Officinalis L.) Plant Under Mariout Conditions - Egypt

Abstract

ield research was conducted on Hyssop (Hyssopus officinalis L.) plants in the Mariout region, North of Egypt during the two successive seasons of 2020 and 2021. The purpose of the study is to determine the optimum space, chemical fertilization, and their interactions on the biomass yield. The research was set compatible to a split-plot design technique. The inter spacing was 30 and 50 cm, while the subplots had chemical fertilization at three levels: full dose NPK, 2/3 NPK, and 1/3 NPK. The used chemical fertilizers (full dose of NPK) were: 450 kg ammonium sulphate (20.5% N) + 300 kg calcium superphosphate (15.5% P2O5) + 150 kg potassium sulphate (48% K2O)/feddan. The results of the two cuts revealed that cultivation at a narrow spacing of 30 cm and adding a full dose of NPK recorded the significant highest production of herb and essential oil yield in the total area. The extracted oil contained pinocamphone (31.61-57.63%) and αpinene (20.47-49.88%) as principal compounds. Cultivation at 30 cm space and adding the full dose of NPK also improved the pinocamphone concentration in the essential oil better than other treatments.

Effect of Yeast and Planting Distances on Productivity and Volatile Oil of Rosmarinus officinalis L. Plant under Siwa Oasis Conditions

“…However, wider spacing promotes the growth of more woody stems than leaves, resulting in a lower essential oil percentage than closer spacing. Conversely, the maximum yield of fresh and dry herb and essential oil per hectare resulted from planting in the narrow space of 30 cm due to an increased number of plants per unit area and oil percent, positively affecting production (Toaima, 2022). These findings were consistent with the research on rosemary that Mishra et al (2009), Zigene et al (2012), and Tadesse (2019) concluded through dense cultivation of plants.…”

“…The research on rosemary and other medicinal herbs belonging to the Lamiaceae family revealed that the agricultural practices used to grow these plants significantly influence the plant's overall productivity and active components. According to Peter (2012) and Toaima (2022Toaima ( , 2023, agronomic methodologies are the primary factor determining the amount and quality of crude herbal products. This is due to the influence of agricultural treatments on photosynthetic efficiency and metabolic byproducts.…”