Résultat de la recherche
4 recherche sur le tag
'tomato' 
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Interroger des sources externes
Titre : Criblage des souches d’actinobactéries pour leurs pouvoirs PGPR : Essais in vitro et in planta sur Solanum lycopersicum L., Triticum durum Desf., et Daucus carota L. Type de document : texte imprimé Auteurs : Rihab Djebaili, Auteur ; Mahmoud Kitouni, Directeur de thèse ; Maddalena Del Gallo, Directeur de thèse Mention d'édition : 11-11-2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Importance : 244 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Microbiologie: Microbiologie générale et appliquée PGPB actinomycètes solubilisation du phosphate acide indole-3-acétique acide cyanhydrique biofertilisant ACC désaminase blé dur stress salin halotolérance la lutte biologique pathogènes SEM filtrats de culture tomate carotte actinomycetes phosphatesolubilization indole-3-acetic acid hydrocyanic acid biofertilizer ACC deaminase durum wheat salt stress halotolerance biological control pathogens culture filtrates tomato carrot Index. décimale : 570 Sciences de la vie. Biologie Résumé : Abiotic stress due to climate change and phytopathogens attacks lead to several damages in agricultural crops. Excessive use of chemicals in agriculture causes environmental pollution and loss of agricultural lands with fertile soils. Plant growth-promoting bacteria (PGPB) are an alternative strategy for sustainable agriculture. Among PGPBs, actinomycetes have recently gained increasing attention for their ability to alleviate plant stress and improve agricultural productivity. This study aimed to select actinomycetes strains with plant growth promoting traits, their plantroots association capacities, and their biostimulating effects without and with salt stress as well as the biocontrol power against several fungal and bacterial plant pathogens. The strains were studied for their phosphate solubilization capacity, indole-3-acetic acid (IAA), hydrocyanic acid (HCN),
and ammonia (NH3) production, and several enzymatic activities. Bacteria-root associations were studied by scanning electron microscopy (SEM), and a greenhouse experiment was performed to assess the inoculation effects on Solanum lycopersiumL.. Likewise, these strains were tested for in vitro halotolerant ability by several PGP tests with different salt concentrations (i.e., 0, 0.25, 0.5, 0.75, 1, 1.25, and 1.5 M NaCl) and by a greenhouse experiment on Triticum durum. The presence of 1-aminocyclopropane-1-carboxylate deaminase activity was also studied. Moreover, the strains were screened for their in vitro biocontrol activity by soluble and volatile compounds production against the fungal strains Fusarium oxysporum f. sp. radicis-lycopersici (FORL) and Rhizoctonia solani (RHS). The post-interaction events fungus-PGPB were analyzed by scanning electron microscopy. The antibacterial activity was evaluated against Pseudomonassyringae, Pseudomonas corrugata, Pseudomonas syringaepv. actinidiae, and Pectobacteriumcarotovorum subsp. carotovorum. Strains showing good in vitro biological control activities were studied for their antifungal and antibacterial activity using the cell culture filtrate (CFS). The consortium of potent strain was applied on Solanum lycopersicum L. and Daucus carota L. for in planta biocontrol activity. Among sixty actinomycetes, fourteen strains exhibited plant growth promoting characteristics. These strains were able to solubilize the phosphate, produce ammonia, and showed several enzymatic activities at different rates. The scanning electron microscopy revealed a good in vitro plant root association and colonization abilities. The actinomycetes inoculation influenced positively the tomato growth parameters. These strains exhibited important in vitro PGP traits under different salt concentrations. Most strains (86%) had 1-aminocyclopropane-1-carboxylate deaminase activity with significant amounts of ketobutyric acid. In the greenhouse experiment, inoculation with actinomycetes strainsimproved the durum wheat morpho-biochemical parameters, which recorded a significantly higher content of chlorophyll and proline than those of uninoculated controls both under normal and stressed conditions. Strains H12 (Streptomyces albidoflavus) and H14 (Nocardiopsisaegyptica) showed good in vitro antifungal activity with diffusible and volatile compounds (inhibition up to 85%) and antibacterial activity (diameter of inhibition> 10 mm). SEM micrographs showed morphological deterioration of the fungal filaments and changes in their structures. The CFS of potent strains was also active in fungal and bacterial pathogens inhibition (minimum inhibitory concentration up to 0.2%). The consortium was also able to alleviate the infection symptoms and allow a normal growth of the infected plants compared to the control. The obtained results demonstrate the efficacy of halotolerant actinomycetes strains as a biofertilizer and biocontrol agent for plant diseases management and for the alleviation of negative effects of salt stress in plants.
Note de contenu : Annexes.
Diplôme : Doctorat En ligne : ../theses/biologie/DJE7836.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11668 Criblage des souches d’actinobactéries pour leurs pouvoirs PGPR : Essais in vitro et in planta sur Solanum lycopersicum L., Triticum durum Desf., et Daucus carota L. [texte imprimé] / Rihab Djebaili, Auteur ; Mahmoud Kitouni, Directeur de thèse ; Maddalena Del Gallo, Directeur de thèse . - 11-11-2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 244 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Microbiologie: Microbiologie générale et appliquée PGPB actinomycètes solubilisation du phosphate acide indole-3-acétique acide cyanhydrique biofertilisant ACC désaminase blé dur stress salin halotolérance la lutte biologique pathogènes SEM filtrats de culture tomate carotte actinomycetes phosphatesolubilization indole-3-acetic acid hydrocyanic acid biofertilizer ACC deaminase durum wheat salt stress halotolerance biological control pathogens culture filtrates tomato carrot Index. décimale : 570 Sciences de la vie. Biologie Résumé : Abiotic stress due to climate change and phytopathogens attacks lead to several damages in agricultural crops. Excessive use of chemicals in agriculture causes environmental pollution and loss of agricultural lands with fertile soils. Plant growth-promoting bacteria (PGPB) are an alternative strategy for sustainable agriculture. Among PGPBs, actinomycetes have recently gained increasing attention for their ability to alleviate plant stress and improve agricultural productivity. This study aimed to select actinomycetes strains with plant growth promoting traits, their plantroots association capacities, and their biostimulating effects without and with salt stress as well as the biocontrol power against several fungal and bacterial plant pathogens. The strains were studied for their phosphate solubilization capacity, indole-3-acetic acid (IAA), hydrocyanic acid (HCN),
and ammonia (NH3) production, and several enzymatic activities. Bacteria-root associations were studied by scanning electron microscopy (SEM), and a greenhouse experiment was performed to assess the inoculation effects on Solanum lycopersiumL.. Likewise, these strains were tested for in vitro halotolerant ability by several PGP tests with different salt concentrations (i.e., 0, 0.25, 0.5, 0.75, 1, 1.25, and 1.5 M NaCl) and by a greenhouse experiment on Triticum durum. The presence of 1-aminocyclopropane-1-carboxylate deaminase activity was also studied. Moreover, the strains were screened for their in vitro biocontrol activity by soluble and volatile compounds production against the fungal strains Fusarium oxysporum f. sp. radicis-lycopersici (FORL) and Rhizoctonia solani (RHS). The post-interaction events fungus-PGPB were analyzed by scanning electron microscopy. The antibacterial activity was evaluated against Pseudomonassyringae, Pseudomonas corrugata, Pseudomonas syringaepv. actinidiae, and Pectobacteriumcarotovorum subsp. carotovorum. Strains showing good in vitro biological control activities were studied for their antifungal and antibacterial activity using the cell culture filtrate (CFS). The consortium of potent strain was applied on Solanum lycopersicum L. and Daucus carota L. for in planta biocontrol activity. Among sixty actinomycetes, fourteen strains exhibited plant growth promoting characteristics. These strains were able to solubilize the phosphate, produce ammonia, and showed several enzymatic activities at different rates. The scanning electron microscopy revealed a good in vitro plant root association and colonization abilities. The actinomycetes inoculation influenced positively the tomato growth parameters. These strains exhibited important in vitro PGP traits under different salt concentrations. Most strains (86%) had 1-aminocyclopropane-1-carboxylate deaminase activity with significant amounts of ketobutyric acid. In the greenhouse experiment, inoculation with actinomycetes strainsimproved the durum wheat morpho-biochemical parameters, which recorded a significantly higher content of chlorophyll and proline than those of uninoculated controls both under normal and stressed conditions. Strains H12 (Streptomyces albidoflavus) and H14 (Nocardiopsisaegyptica) showed good in vitro antifungal activity with diffusible and volatile compounds (inhibition up to 85%) and antibacterial activity (diameter of inhibition> 10 mm). SEM micrographs showed morphological deterioration of the fungal filaments and changes in their structures. The CFS of potent strains was also active in fungal and bacterial pathogens inhibition (minimum inhibitory concentration up to 0.2%). The consortium was also able to alleviate the infection symptoms and allow a normal growth of the infected plants compared to the control. The obtained results demonstrate the efficacy of halotolerant actinomycetes strains as a biofertilizer and biocontrol agent for plant diseases management and for the alleviation of negative effects of salt stress in plants.
Note de contenu : Annexes.
Diplôme : Doctorat En ligne : ../theses/biologie/DJE7836.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11668 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité DJE/7836 DJE/7836 Thèse Bibliothèque principale Thèses Disponible
Titre : Étude, conception et réalisation d’un séchoir solaire indirect. Type de document : texte imprimé Auteurs : Abdelouahab Boubeghal, Auteur ; Abla Chaker, Directeur de thèse Mention d'édition : 14/12/2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Importance : 135 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : physique: Physique Energétique Séchoir solaire indirect convection naturelle rayonnement solaire cinétique de séchage tomate henné simulation numérique Indirect solar dryer natural convection solar radiation drying kinetics tomato henna numerical simulation مجفف شمسً غٌر مباشر الحمل الحراري الطبٌعً الإشعاع الشمس حركٌة التجفٌف طماطم الحناء المحاكاة الرقمٌة Index. décimale : 530 Physique Résumé :
Currently, solar drying is among the most important applications of solar energy. This type of drying is one of the most suitable solutions for preserving agricultural products, especially in developing countries. In order to improve the solar drying process, a new indirect solar dryer with natural convection was designed, built, and tested in the climatic conditions of the Adrar region (Algerian Sahara). The construction and experimentation phases were preceded by modeling of the dryer. The heat balances of its main components, drying chamber and solar collector, were established, and the resulting equations were solved by the 4th order Range Kutta method. The effect of many parameters on the drying kinetics was examined. In order to validate on the one hand the numerical results and to demonstrate on the other hand the efficiency of the proposed prototype, measurement companions of many parameters (solar radiation, temperatures of the horizontal and vertical absorbers of the solar collector, temperatures in and at the outlet of the latter, temperature, and humidity of the drying air, water content of tomato and henna products), were carried out for four days, one per season. The results obtained strongly encourage the installation of the proposed indirect solar dryer in the Saharan environment. Such a device will undoubtedly make it possible to conserve the surplus crops of agro-food products and medicinal plants, limit or even eliminate the significant losses recorded each year. Such a device will undoubtedly make it possible to conserve the surplus crops of agro-food products and medicinal plants, limit or even eliminate the significant losses recorded each year. The device will undoubtedly contribute to the socioeconomic development of these desert regions.
Note de contenu :
Annexes.
Diplôme : Doctorat en sciences En ligne : ../theses/physique/BOU7840.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11672 Étude, conception et réalisation d’un séchoir solaire indirect. [texte imprimé] / Abdelouahab Boubeghal, Auteur ; Abla Chaker, Directeur de thèse . - 14/12/2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 135 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : physique: Physique Energétique Séchoir solaire indirect convection naturelle rayonnement solaire cinétique de séchage tomate henné simulation numérique Indirect solar dryer natural convection solar radiation drying kinetics tomato henna numerical simulation مجفف شمسً غٌر مباشر الحمل الحراري الطبٌعً الإشعاع الشمس حركٌة التجفٌف طماطم الحناء المحاكاة الرقمٌة Index. décimale : 530 Physique Résumé :
Currently, solar drying is among the most important applications of solar energy. This type of drying is one of the most suitable solutions for preserving agricultural products, especially in developing countries. In order to improve the solar drying process, a new indirect solar dryer with natural convection was designed, built, and tested in the climatic conditions of the Adrar region (Algerian Sahara). The construction and experimentation phases were preceded by modeling of the dryer. The heat balances of its main components, drying chamber and solar collector, were established, and the resulting equations were solved by the 4th order Range Kutta method. The effect of many parameters on the drying kinetics was examined. In order to validate on the one hand the numerical results and to demonstrate on the other hand the efficiency of the proposed prototype, measurement companions of many parameters (solar radiation, temperatures of the horizontal and vertical absorbers of the solar collector, temperatures in and at the outlet of the latter, temperature, and humidity of the drying air, water content of tomato and henna products), were carried out for four days, one per season. The results obtained strongly encourage the installation of the proposed indirect solar dryer in the Saharan environment. Such a device will undoubtedly make it possible to conserve the surplus crops of agro-food products and medicinal plants, limit or even eliminate the significant losses recorded each year. Such a device will undoubtedly make it possible to conserve the surplus crops of agro-food products and medicinal plants, limit or even eliminate the significant losses recorded each year. The device will undoubtedly contribute to the socioeconomic development of these desert regions.
Note de contenu :
Annexes.
Diplôme : Doctorat en sciences En ligne : ../theses/physique/BOU7840.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11672 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/7840 BOU/7840 Thèse Bibliothèque principale Thèses Disponible Isolement de microorganismes à partir du sol des régions arides et sélection d’isolats à effet antagoniste sur l’agent de l’Alternariose / Asma Milet
Titre : Isolement de microorganismes à partir du sol des régions arides et sélection d’isolats à effet antagoniste sur l’agent de l’Alternariose Type de document : texte imprimé Auteurs : Asma Milet, Auteur ; N Kacem Chaouche, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 122 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Tomate Alternariose Alternaria alternata Bacillus Providencia vermicola lipopeptides Cymomètre à flux biocontrôle Tomato early blight Flow cytometer biocontrol لطماطم اللفحة المبكرة تقنية تدفق الكريات والمكافحة
البيولوجيةIndex. décimale : 570 Sciences de la vie. Biologie Résumé : Early blight is one of the most important diseases of tomato in eastern Algeria. Tomato
samples exploration (leaves, stems and fruits) with symptoms of early blight, grown under
glass in Hamma Bouziane locality (Constantine), allowed obtaining a filamentous fungal
isolate (Alt 1). The morphological and molecular identification (DNA-ITS analysis) of this
isolate revealed that it is Alternaria alternata (HQ846574.1). Pathogenicity testing of
seedlings by isolate resulted in the challenge of the typical early blight disease with a severity
of ≥ 76%. Samples exploration from various environments in the Algerian Sahara (Biskra and
Tougourt) resulted in the obtaining of 45 microbial isolates capable of developing an effect on
early blight agent. The selection test showed that; E1B3, S5 (isolated from Biskra) and E2X1,
S1.1 (isolated from Tougourt) possess a considerable antifungal effect against A. alternata
(inhibition rates vary between 60% and 75%), however, the E1B3 isolate developed the best
effect. The morphological and molecular identification of the selected isolates by analysis of
the 16S DNA and the "gyrase-A" gene showed that the bacterial isolates; E1B3, S5, and S1.1,
are identified as Bacillus mojavensis (KC977492), Bacillus amyloliquefaciens (KC977493),
and Bacillus Subtilis (KP699114.1) respectively, whereas the bacterial isolate E2X1 is
identified as Providencia vermicola (KP059130.1). To the best of our knowledge, the
isolation of P. vermicola from the palmerais rhizospheric soil and the demonstration of its
antifungal potential are established for the first time in this work.
The in vivo tests that carried out in pots and field conditions on tomato showed different
effects according to the bacterial species, and B. mojavensis developed the best effect
considering the most studied parameters (disease severity, Seedling size, leaves number and
flowers number per seedling). The P. vermicola strain showed the greatest result on the
severity reduction of early blight disease, indicating that the present work is the first one
which revealed this effect. In contrast, B. mojavensis developed the best protective effect,
considering the majority of the parameters studied in vitro and in vivo. This impact is due to
the ability of this strain to produce antifungal substances in this case; the enzymes (lipase and
protease) and the three families of lipopeptides (iturin, surfactins, and fengycins). The
evaluation of the antagonistic effect developed by B. mojavenssvis versus A. alternata through
flow cytometer (FCM) showed a considerable decrease in the rate of A. Alternata living cells,
confirming the inhibitory effect of B. mojavensis against the pathogenic agent of early blight.Diplôme : Doctorat En ligne : ../theses/biologie/MIL7125.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10477 Isolement de microorganismes à partir du sol des régions arides et sélection d’isolats à effet antagoniste sur l’agent de l’Alternariose [texte imprimé] / Asma Milet, Auteur ; N Kacem Chaouche, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2017 . - 122 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Tomate Alternariose Alternaria alternata Bacillus Providencia vermicola lipopeptides Cymomètre à flux biocontrôle Tomato early blight Flow cytometer biocontrol لطماطم اللفحة المبكرة تقنية تدفق الكريات والمكافحة
البيولوجيةIndex. décimale : 570 Sciences de la vie. Biologie Résumé : Early blight is one of the most important diseases of tomato in eastern Algeria. Tomato
samples exploration (leaves, stems and fruits) with symptoms of early blight, grown under
glass in Hamma Bouziane locality (Constantine), allowed obtaining a filamentous fungal
isolate (Alt 1). The morphological and molecular identification (DNA-ITS analysis) of this
isolate revealed that it is Alternaria alternata (HQ846574.1). Pathogenicity testing of
seedlings by isolate resulted in the challenge of the typical early blight disease with a severity
of ≥ 76%. Samples exploration from various environments in the Algerian Sahara (Biskra and
Tougourt) resulted in the obtaining of 45 microbial isolates capable of developing an effect on
early blight agent. The selection test showed that; E1B3, S5 (isolated from Biskra) and E2X1,
S1.1 (isolated from Tougourt) possess a considerable antifungal effect against A. alternata
(inhibition rates vary between 60% and 75%), however, the E1B3 isolate developed the best
effect. The morphological and molecular identification of the selected isolates by analysis of
the 16S DNA and the "gyrase-A" gene showed that the bacterial isolates; E1B3, S5, and S1.1,
are identified as Bacillus mojavensis (KC977492), Bacillus amyloliquefaciens (KC977493),
and Bacillus Subtilis (KP699114.1) respectively, whereas the bacterial isolate E2X1 is
identified as Providencia vermicola (KP059130.1). To the best of our knowledge, the
isolation of P. vermicola from the palmerais rhizospheric soil and the demonstration of its
antifungal potential are established for the first time in this work.
The in vivo tests that carried out in pots and field conditions on tomato showed different
effects according to the bacterial species, and B. mojavensis developed the best effect
considering the most studied parameters (disease severity, Seedling size, leaves number and
flowers number per seedling). The P. vermicola strain showed the greatest result on the
severity reduction of early blight disease, indicating that the present work is the first one
which revealed this effect. In contrast, B. mojavensis developed the best protective effect,
considering the majority of the parameters studied in vitro and in vivo. This impact is due to
the ability of this strain to produce antifungal substances in this case; the enzymes (lipase and
protease) and the three families of lipopeptides (iturin, surfactins, and fengycins). The
evaluation of the antagonistic effect developed by B. mojavenssvis versus A. alternata through
flow cytometer (FCM) showed a considerable decrease in the rate of A. Alternata living cells,
confirming the inhibitory effect of B. mojavensis against the pathogenic agent of early blight.Diplôme : Doctorat En ligne : ../theses/biologie/MIL7125.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10477 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MIL/7125 MIL/7125 Thèse Bibliothèque principale Thèses Disponible
Titre : les industries agroalimentaires : cas de la wilaya de Guelma dans le nord-est Algerien. Type de document : texte imprimé Auteurs : Liela Bennacer, Auteur ; Salah Eddine Cherrad, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 301 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Aménagement du TerritoireTags : Industrie agroalimentaire amont aval filières acteurs Guelma céréales lait tomate huile d’olive Food industry upstream downstream sectors actors cereals milk tomato olive oil الصناعات الغذائیة التنقیب والإنتاج القطاعات الجھات الفاعلة قالمة الحبوب الحلیب الطماطم زیت
الزیتIndex. décimale : 711 (Aménagement du territoire) Résumé : The main objective of this study is to conduct an analysis of agro-food chains, and show their impact on agriculture in a region that has great agricultural potential for intensification and diversification. The identification and action of actors involved in agricultural upstream and industrial downstream are central to this research. In the wilaya of Guelma, agri-food industries have developed rapidly and their activities cover a large part of its territory. These sectors have experienced a development in terms of areas, production and yields. From now on they contribute to the formation of an original agro industrial center with the appearance of industrialists putting into practice innovative techniques and elaborate forms of management. Our empirical application in the wilaya of Guelma has shown that each sector has its own characteristics and that it is totally different from the other sectors, whether in its agricultural upstream or in its industrial downstream.
Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/BEN7362.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11011 les industries agroalimentaires : cas de la wilaya de Guelma dans le nord-est Algerien. [texte imprimé] / Liela Bennacer, Auteur ; Salah Eddine Cherrad, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 301 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Aménagement du TerritoireTags : Industrie agroalimentaire amont aval filières acteurs Guelma céréales lait tomate huile d’olive Food industry upstream downstream sectors actors cereals milk tomato olive oil الصناعات الغذائیة التنقیب والإنتاج القطاعات الجھات الفاعلة قالمة الحبوب الحلیب الطماطم زیت
الزیتIndex. décimale : 711 (Aménagement du territoire) Résumé : The main objective of this study is to conduct an analysis of agro-food chains, and show their impact on agriculture in a region that has great agricultural potential for intensification and diversification. The identification and action of actors involved in agricultural upstream and industrial downstream are central to this research. In the wilaya of Guelma, agri-food industries have developed rapidly and their activities cover a large part of its territory. These sectors have experienced a development in terms of areas, production and yields. From now on they contribute to the formation of an original agro industrial center with the appearance of industrialists putting into practice innovative techniques and elaborate forms of management. Our empirical application in the wilaya of Guelma has shown that each sector has its own characteristics and that it is totally different from the other sectors, whether in its agricultural upstream or in its industrial downstream.
Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/BEN7362.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11011 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BEN/7362 BEN/7362 Thèse Bibliothèque principale Thèses Disponible
