Study of the Economical Feasibility of Medical and Aromatic Plants Production, Case Study: Rosemary – Lattakia Governorate

Husbandry of the medicinal and aromatic plants in general and “Rosemary” in particular is considered of the alternative economical husbandry that flourished recently in Syria due to the availability of the natural and environmental conditions thereto; in addition to the good economical yield thereof. Interest, encouragement, development, and expansion of such husbandry are considered of the most important targets set for the future strategy of agricultural development in Syria. This Research has targeted to the realization of the following purposes : 1- Analysis of the costs of Rosemary production in Lattakia Governorate. 2- The economical evaluation for Rosemary production in Lattakia Governorate. The research concluded to the following: 1) The achieved annual net profit of one dunum planted with Rosemary in Lattakia Governorate has amounted to SYP /200799.48/. 2) The farming revenue of one dunum planted with Rosemary in Lattakia Governorate has amounted to SYP /206901.84/. 3) The total Economical Feasibility from Rosemary husbandry in Lattakia Governorate has amounted to 3,02

The Effect of Some Essential Oils on the Growth of Bacteria Paenibacillus (Bacillus) larvae Causing American Foulbrood Disease to Honey Bees (Apis mellifera L.)

The effect of some essential oils taken from Cinnamomum zeylanicum, Citrus limonum and Rosmarinus Officinalis was investigated in relation to the growth of bacteria Paenibacillus larvae which causes American Foulbrood disease that affects world honey bees Apis mellifera L. The study was carried out in the laboratories of the Faculty of Agriculture, Damascus University from 2012 till 2013. This is in order to contribute to preparing an integrated pest management program for American Foulbrood disease. The oils were extracted from the plants using steam distillation. The effects of the concentrations of oils on the growth of P. larvae were tested between (3.90625 - 500 μg/ml) using agar disc diffusion in petri plates. Results showed that the essential oils used stop the growth of P. larvae in some of their concentrations. The minimal inhibitory concentrations which stop the growth of P. larvae of the oils of Cinnamomum zeylanicum, Citrus limonum and Rosmarinus officinalis were recorded at 31.25 μg/ml, 62.5 μg/ml, 125 μg/ml respectively.

Morphological and Chemical Characteristics of Syrian Rosmarinus officinalis and detecting its counterfeit

In this work Rosmarinus officinalis L. grown in Syria was studied. The general characteristics of the whole plant, as well as the leaves and the flowers were determined. It was shown that there are two varieties of Rosmarinus one having violet flowers and the other having white flowers. The two varieties were compared morphologically and they were in accord with what was mentioned in the literature. The two varieties were also compared chemically and it was possible to explain the differences mentioned in the literature by differences in the composition of the volatile oil. The chemical study of the drug shows the quantity as well as the percentage of its constituents. At last the main substitute of the drug used in Syria was shown and compared with the main drug. It was shown that the composition of the volatile oil of the substitute is different from the composition of the volatile oil of Rosmarinus, thus it can not be used for the same purpose.