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Tobacco Science
and Technology

Tobacco Science
and Technology

Tobacco Science and Technology

Volume 56 , Issue 06

25 Sep 2023



Volume - 56 , Issue 06

30 Sep 2023


All Published Jurnal

Tobacco Science and Technology

Diversity and floristic inventory of the Souk-Ahras Forest (North East of Algeria)

Located in the northeast of Algeria, the forest of Souk Ahras and, more precisely, the forest of Ouled Bechih occupies an area of 6,582 hectares. The diversity of these ecosystems [1] is one of the most beautiful wet forests in North Africa and can be described in this area thanks to its geographical position and biotic and abiotic diversity. And it is considered a regional park in the heart of creation. This area is north of the Wilaya of Souk-Ahras, whose climate is of Mediterranean type, characterized by an average annual temperature of 16°C and average annual precipitation of 625 mm, with

Use of relative water content for the improvement of drought tolerance in some durum wheat varieties in Eastern Algerian regions

Various morphological and physiological traits related to water deficit tolerance (relative water content, osmotic adjustment) were studied in four durum wheat varieties of diverse origin, and with different agronomic behaviors. Significant relationships were observed between osmotic adjustment and relative water content, which confirms the significant role played by osmotic adjustment in maintaining yields under drought conditions. This study highlighted the interest of osmotic adjustment in maintaining cell turgor in plants subjected to a water deficit. This suggests the use of this paramete

Chemical Composition and Antioxidant Activity Extracts of Ferula sulcata from North East of Algeria

The crude hydroethanolic extract of Ferula sulcate Dell, was prepared by Solid-Liquid Extraction (S.L.E); and its fractionation was carried out by Liquid-Liquid Extraction (LLE).The yield of the various extracts obtained are in the following decreasing order: AcOEt˃ n-BuOH˃ MeOH70%˃ EHx˃ EAq. Quantitative estimation of total flavonoids and polyphenols by the spectrophotometric method showed that the extracts AcOEt, MeOH70% and n-BuOH have the highest content of phenolic compounds. The aqueous extract gave the lowest content with 41.20± 2.0 mg EAG/g MS.. HPLC analysis of the ethyl acetate

Stress and depressive disorders in diabetic pregnant women

A number of physical and psychological changes that occur during pregnancy can stimulate the development of psychological disorders such stress and depression. The study evaluated psychological aspects related to maternal depression and stress in pregnant women with diabetes mellitus, contrasting the results with those of women with diabetes who are not pregnant.

Impact of Azadirachtin on the sexual behaviour of Drosophila melanogaster (Diptera; Drosophilidae)

Chemical communication in the search for a sexual partner in insects is essentially based on sex pheromones. The vinegar fly, Drosophila melanogaster, is a laboratory model par excellence. We experimented with the toxic and sexual behaviour study of adults of D. melanogaster using a bioinsecticide from plants (Azadirachtin). When we treated the larvae of the second stage of the vinegar fly, and in this study, we identified all the stages of sexual behaviour of D. melanogaster. Finally, the treatment with this extract inhibits the secretions of the fermions (Cubiccular hydrocarbons). After expo

Effects of Density and Site Conditions on Growths of Rhizophora apiculata Plantations in Southern Vietnam

Increasing mangrove forest areas is set as an urgent action of many countries since the ecological and social importance of mangrove forest have been becoming awareness worldwide. In this study, forty-two 500-m2 plots were established in 15-year-old Rhizophora apiculata plantations in six different provinces, southern Vietnam for data collection. Growth parameters, mud depths, and salinities were measured in all plots. Stem density, stem diameter and height, height under crown, crown diameter, diameter of root system, and aerial root number were significantly affected by planting sites with th


Acacia tortilis subsp. raddiana is a medicinal and forest phanerophyte in the Tindouf region (Western Sahara, Algeria). The species constitutes a particular entity and a capital element in the balance and maintenance of arid and desert ecosystems as well as in the fight against desertification. We carried out a questionnaire which lasted two months with the inhabitants and the herbalists. The different taxonomic parts of the species: roots, leaves, pods, gum exudates and bark are very useful for medical, pastoral and commercial purposes. In medicine, Acacia tortilis subsp. raddiana is useful f

Impacts of Climate Factors on the Spread of COVID 19 Cases (Hospitalization Cases) in the Region of Annaba, Algeria

COVID-19 pandemic which has hit the world for more than two and half years now continues to be the focus of many research teams around the world given the real danger and threat experienced by the humanity. Climate is possibly a very important factor in the transmission of many respiratory diseases. This led us to conduct this study in which we explored the influence of different climatic factors; namely temperature (average, maximum, minimum), air pressure, humidity, total rain and/or snowmelt as well as the visibility on the spread of COVID 19 cases (hospitalization cases) in the state of An


The prevalence of type 2 diabetes mellitus is increasing rapidly in industrialized countries, and adrenal glucocorticoids may intensify this disease. We sought to assess the relationship between diabetes-associated metabolic disturbances, cortisol concentrations and cholesterol levels in patients with type 2 diabetes. We investigated 80 women volunteered. The target population comprised 40 control And 40 with a type 2 diabetes. Clinical variables associated with diabetes were measured and correlated with cortisol concentrations and cholesterol levels. Stress will increase the cortisol levels.

Effect of household waste on soil fauna and soil quality, case of agricultural land in Guelma (Algeria)

The soil is the star of our planet. It feeds us, carries us, and protects us. Soil is an essential resource for man and his environment and one of the most important reservoirs of biodiversity. However, it is not a renewable resource on a human timescale. Unfortunately, it is subject to numerous anthropogenic stresses that degrade its physicochemical properties and can lead to the loss of essential functions. Among these anthropogenic stresses, household waste affects soil microorganisms and their quality. Thus, our study is directed at the effect of household waste on the soil fauna and soil