http://depot.umc.edu.dz/handle/123456789/4256 2026-04-30T14:56:26Z 2026-04-30T14:56:26Z Berchi Selima Bounamous Azzedine Depaquit Jérome http://depot.umc.edu.dz/handle/123456789/11385 2025-05-27T10:38:47Z 2010-01-01T00:00:00Z

Biosystématique et caractérisatiion par la biologie moléculaire des phèebotomes de l'Est algérien Berchi Selima; Bounamous Azzedine; Depaquit Jérome 304 f.

2010-01-01T00:00:00Z بوشارب راضية غروشة حسين http://depot.umc.edu.dz/handle/123456789/4428 2025-07-03T08:14:37Z 2016-01-01T00:00:00Z

تحسين القمح الصلب(Triticum durum Desf.); دراسة الميكانيزمات المورفوفيزيولوجية واالبيوكيميائية لتحمل الإجهاد المائي بوشارب راضية; غروشة حسين Although drought stress has been well documented as an effective parameter in decreasing crop production in semi arid regions. The objectives of this study were to detect the effect of water stress in durum wheat (Triticum durum Desf). The present study was carried out to study the performance of durum wheat. We used in this study ten durum wheat varieties from different sources with two different experiences. The first was on the ground, and the second was conducted in semi-controler conditions. The first experiment was performed during the agricultural seasons 2011-12, 2012-13, 2013-2014 at the experimental field of the Technical Institute of Field Crops (ITGC) El khroub Constantine, the objectif of this work to study the effect of water stress in natural field conditions, different measures have been taken during plant growth, morphological parameters, phenological, yield and its components. The results showed that the durum wheat response to water stress is associated with the variety, intensity and duration of water stress, the analysis of variance showed highly significant results in most parameters studied. It remains local varieties Bousselem Cirta and more productive compared to other variéties. the second experiment is conducted in a Glass House was located at Chaab el Ressas Constantine University, where we practice different physiological, biochemical measurements and analysis of variance where very significant between genotypes, we recorded a lack of chlorophyll with an increase in the resistance of the stoma by increasing the content of abscisic acid, sodium and potassium, during local varieties showed high adaptation compared to the varieties imported especially the variety Ter-1/3. The results also showed that the drought leads to a lack of water content with respect to the varieties studied, which have been modified by the accumulation of sugars and proline as well as significant differences in molecular weight of the proteins, while the majority of the response to drought stress was different for each variety. The study showed also that the varieties studied responded to water stress by different mechanisms and in proportions between introduced varieties and improved to maintain the vital functions of durum wheat

2016-01-01T00:00:00Z بن لعريبي مصطفى بولعسل معاد http://depot.umc.edu.dz/handle/123456789/4427 2025-07-03T08:15:27Z 2016-01-01T00:00:00Z

دراسة الخصائص الزهرية عنذ أبرز النباتات الوعائية ()Spermaphytesالمنتشرة بمنطقة قسنطينة ووضع رزنامة زهرية أولية بن لعريبي مصطفى; بولعسل معاد The check-list, the follow-up of the phase of blooming, taking of samples, observation binocular magnifying glass and optical microscope, showed an important biodiversity represented by more than 290 of plant species listed in 60 families. The study represents a database of the morphological and histological characteristics of the reproductive system of most abundant plant species in Constantine’s region, northeast of Algeria. The follow-up of the development cycle and particularly the phase of bloomingof these species during successive periods (2012/2013, 2013/2014) and 2014/2015), allowed to notice the effect of certain factorson this phase and to propose on one hand a floral calendarof the region of study. It was observed on the other hand, the effect of the climatic variations from one year to another on the blooming herself and consequently on the people allergic to the grainsof pollen. The results obtained through this study confirm that the floral characteristics (morphological and histological) always remains necessary for the distribution of plants in groups to classify them according to the visible criteria of resemblance on one hand, and the criteria of disparity on the other hand. This remains valid as well at the level of the family; genus, the species and even the varieties.It is necessary to add to it their stability in time. The study revealed three ways of pollination in the fertilization of flowers: -Anemophily (wind pollination), -Entomophily (zoo-pollination)-Gravitational pollination. The follow-up of the phase of the blooming in the area of study suggests the existence of groups of plants. Indeed, is observed a strong link between the ecological factors such as the light period (photoperiod), the temperatures (thermo-periods) and pluviometry. The comparison between three periods of the study, highlights that the climatic variations from one year to another one, engendered a progress (precocity) or a delay (belatedness) in the starting up of the phase of blooming of certain species what rang negatively on the yield because the spring frost in the first case and of the drought of the end of cycle in the second case. From the point of view human health, it is noticed that the average of infringement by the allergy in man coincides with the density of blooming of plants pulling the distribution of the grains of pollen in the air. 239 ورقة.

2016-01-01T00:00:00Z Redouane-Salah Sara Arhab R http://depot.umc.edu.dz/handle/123456789/4426 2025-05-20T13:15:42Z 2016-06-14T00:00:00Z

Caractérisation mycologique des fourrages pour ruminants et recherche d’Aflatoxine M1 dans le lait cru de vache; étude comparative aux laits pasteurisé et lyophilisé Redouane-Salah Sara; Arhab R In order to assess the mycological contamination of cattle feed, and the search for aflatoxin M1 in milk consumed in Algeria, we realized this work in eastern Algeria zone. Mycological results showed the presence of 247 fungal strains belonging to 9 genera (Aspergillus, Penicillium,Alternaria, Mucor, Rhizopus, Fusarium, Geotricum, Helminthosporium, Cladosporium), with a dominance of Aspergillus, followed by Penicillium. Among the foods analyzed, the concentrate appears to be the most contaminated substrate. The mycotoxicological study by HPLC, and involving a total of 47 milk samples (22 raw milk samples, 11 samples of pasteurized milk and 14 samples of dry milk), revealed five contaminated samples only one exceeding the standard described by European regulations (lyophilized milk 103ng/L). Biochemical and physicochemical analysis of raw milk showed that the samples tested meet the standards. 125 f.

2016-06-14T00:00:00Z