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Partager le résultat de cette recherche Interroger des sources externesAdaptation du chêne liège (Quercus suber L.) aux conditions extrêmes de température / Malika Rached-Kanouni
Titre : Adaptation du chêne liège (Quercus suber L.) aux conditions extrêmes de température Type de document : texte imprimé Auteurs : Malika Rached-Kanouni, Auteur ; Djamel Alatou, Directeur de thèse ; Souliaman Sakr, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2013 Importance : 149 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Chêne liège températures extrêmes (éventail thermique) paramètres morphologiques marqueurs biochimiques
cork oak extreme temperatures morphological parameters biochemical markers البلوط الفلیني الحرارة المتطرفة العوامل المورفولوجیة العوامل
البیوكیمیائیةIndex. décimale : 570 Sciences de la vie. Biologie Résumé :
The climatic changes which the Mediterranean region knows are at the origin of the physionomical variations of the forest ecosystems. This pathology appears by thermal stresses which undergo the trees in their natural area, affecting their growth and productivity.
The most disastrous consequences appear by a risk of displacement of their biogeographic areas. This study is articulated on the capacities of adaptation of cork oak to thermal variability using the biochemical markers (proline, soluble sugars, proteins and quercitol). Sowings have elevated under semi controlled conditions undergo three successive stresses of short duration of 3 hours to a range of temperature ranging between -2°C and 44°C.
We have effected the measures of morphological parameters (hight of stream, number of leafs and foliar surface) and biochemical.
The morphological parameters showed a statistically significant difference between the different treatments and stress. Soluble sugars (sucrose, glucose and fructose), the starch are closely linked with a reduction in their contents at stressed seedlings. The accumulation of the proline is correlated positively with the hot temperatures and accumulation of the proteins is significant at 2°C and 38°C. The quercitol is correlated with extreme temperatures (-2°C and 44°C). The roots and the young leaves (the 2nd flush) accumulated proline and quercitol. The accumulated quantities could be related to the level of tolerance to the thermal stress, contributing to the maintenance of cellular turgescence, creates by osmotic adjustment for these markers.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/RAC6371.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6341 Adaptation du chêne liège (Quercus suber L.) aux conditions extrêmes de température [texte imprimé] / Malika Rached-Kanouni, Auteur ; Djamel Alatou, Directeur de thèse ; Souliaman Sakr, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2013 . - 149 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Chêne liège températures extrêmes (éventail thermique) paramètres morphologiques marqueurs biochimiques
cork oak extreme temperatures morphological parameters biochemical markers البلوط الفلیني الحرارة المتطرفة العوامل المورفولوجیة العوامل
البیوكیمیائیةIndex. décimale : 570 Sciences de la vie. Biologie Résumé :
The climatic changes which the Mediterranean region knows are at the origin of the physionomical variations of the forest ecosystems. This pathology appears by thermal stresses which undergo the trees in their natural area, affecting their growth and productivity.
The most disastrous consequences appear by a risk of displacement of their biogeographic areas. This study is articulated on the capacities of adaptation of cork oak to thermal variability using the biochemical markers (proline, soluble sugars, proteins and quercitol). Sowings have elevated under semi controlled conditions undergo three successive stresses of short duration of 3 hours to a range of temperature ranging between -2°C and 44°C.
We have effected the measures of morphological parameters (hight of stream, number of leafs and foliar surface) and biochemical.
The morphological parameters showed a statistically significant difference between the different treatments and stress. Soluble sugars (sucrose, glucose and fructose), the starch are closely linked with a reduction in their contents at stressed seedlings. The accumulation of the proline is correlated positively with the hot temperatures and accumulation of the proteins is significant at 2°C and 38°C. The quercitol is correlated with extreme temperatures (-2°C and 44°C). The roots and the young leaves (the 2nd flush) accumulated proline and quercitol. The accumulated quantities could be related to the level of tolerance to the thermal stress, contributing to the maintenance of cellular turgescence, creates by osmotic adjustment for these markers.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/RAC6371.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6341 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité RAC/6371 RAC/6371 Thèse Bibliothèque principale Thèses Disponible
Titre : Ecologie de l’ailante glanduleux (Ailanthus altissima) dans la région de Constantine Type de document : texte imprimé Auteurs : Amel Soltani Amri, Auteur ; Djamel Alatou, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 86 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : stress thermique marqueurs biochimiques chlorophylle sucres proline hautes températures Ailanthus altissima facteurs édaphiques heat stress biochemical markers sugars chlorophyll edaphic factors high temperature الوسمات البيوكيميائية الكلوروفيل السكريات البرولين الخصائص الكميائية الفيزيائية للتربة Index. décimale : 570 Sciences de la vie. Biologie Résumé : Biological invasions are a concern of current as well as climate change. Indeed, they can be regarded as an experimental manipulation of biodiversity on a large scale and used to test fundamental hypotheses in ecology. In particular, they allow exploration of impaired functioning of ecosystems by altering species assemblage. This work is to determine the adaptability of the ailanthus dwarf capacity in the region of Constantine, thermal variability for using biochemical markers (chlorophyll, sugars and proline) and the assessment of its ecological character physico-chemical characterization of the soil.
The seedlings under semi controlled under stress of short duration (03 hours) at a temperature ranging from 30°C to 50°C and in which the biochemical parameters are quantized (chlorophyll, sugars and proline). The results show that the seed of Ailanthus are capable to accumulate different osmolytes like proline and sugars in the various organs in response to thermal stress and the highest levels are stored in the roots for the proline and in leaves for sugars reflecting the resistance of this species to the stress. The physicochemical characterization of the environment reveals a high C/N ratio reflecting very favorable conditions for the decomposition of the carbonaceous material and very low levels of trace metals that reflect the geochemical background elements. thus, the species studied showed a good ability to grow in the study site.Diplôme : Magistère En ligne : ../theses/biologie/SOL6673.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9801 Ecologie de l’ailante glanduleux (Ailanthus altissima) dans la région de Constantine [texte imprimé] / Amel Soltani Amri, Auteur ; Djamel Alatou, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2014 . - 86 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : stress thermique marqueurs biochimiques chlorophylle sucres proline hautes températures Ailanthus altissima facteurs édaphiques heat stress biochemical markers sugars chlorophyll edaphic factors high temperature الوسمات البيوكيميائية الكلوروفيل السكريات البرولين الخصائص الكميائية الفيزيائية للتربة Index. décimale : 570 Sciences de la vie. Biologie Résumé : Biological invasions are a concern of current as well as climate change. Indeed, they can be regarded as an experimental manipulation of biodiversity on a large scale and used to test fundamental hypotheses in ecology. In particular, they allow exploration of impaired functioning of ecosystems by altering species assemblage. This work is to determine the adaptability of the ailanthus dwarf capacity in the region of Constantine, thermal variability for using biochemical markers (chlorophyll, sugars and proline) and the assessment of its ecological character physico-chemical characterization of the soil.
The seedlings under semi controlled under stress of short duration (03 hours) at a temperature ranging from 30°C to 50°C and in which the biochemical parameters are quantized (chlorophyll, sugars and proline). The results show that the seed of Ailanthus are capable to accumulate different osmolytes like proline and sugars in the various organs in response to thermal stress and the highest levels are stored in the roots for the proline and in leaves for sugars reflecting the resistance of this species to the stress. The physicochemical characterization of the environment reveals a high C/N ratio reflecting very favorable conditions for the decomposition of the carbonaceous material and very low levels of trace metals that reflect the geochemical background elements. thus, the species studied showed a good ability to grow in the study site.Diplôme : Magistère En ligne : ../theses/biologie/SOL6673.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9801 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SOL/66673 SOL/66673 Thèse Bibliothèque principale Thèses Disponible
Titre : Typologie et adaptation des espaces verts de l'agglomération d'El Khroub (Constantine). Type de document : texte imprimé Auteurs : Nour El Houda Benkouachi, Auteur ; Djamel Alatou, Directeur de thèse Mention d'édition : 05/10/2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Gestion Durable des Écosystèmes et Protection de L’environnement gestion durable espace vert diversité floristique stress thermique marqueurs biochimique sustainable management green space floristic diversity heat stress biochemical markers الإدارة المستدامة المساحات الخضراء التنوع في النباتات الاجهاد الحراري العوامل البيوكيميائية Index. décimale : 570 Sciences de la vie. Biologie Résumé : "The sustainable management of green spaces requires a vast set of arboreal practices both in terms of its design (landscape study, choice of species), as its maintenance, it is intended to find a balance between landscape comfort, ecological requirements and practical and economic constraints. This work aims essentially to draw a typology appropriate to the green spaces of the city of El Khroub with the help of the GIS software, to inventory and evaluate the viability of the diversity of the ligneous of the city, and to integrate the social part in this evaluation, to propose a differentiated management mode, and finally to elucidate the effect of heat stress by biochemical markers (chlorophyll, proline, soluble sugars, proteins, catalase and peroxidase) on the adaptability of seedlings of Acacia heterophylla Willd, Fraxinus angustifolia, Maclura pomifera, Melia azedarach, and Phytolacca americana vis-à-vis high and low temperatures. Our results reveal the existence of 11 types among the 13 proposed by Jancel, the predominant type is the accompaniments of collective dwellings; we note the deficit of green spaces in the city of El Khroub with a ratio of 0.53 m² / ha, a recovery rate of 1.58%, and a total density of about 1.33/ km². The inventoried results on the floral diversity of the city of El Khroub shows the existence of 34 species belonging to 18 families for the tree layer, and 19 species belong to 14 families for the shrub and herbaceous strata, their states varies between good, medium and bad. Alignment trees and plants that constitute green spaces remain dependent on the aesthetic, ornamental, and does not meet the ecological characteristics (adaptation), this is confirmed by the respondents. In fact, the dispersed greening operations, by the responsible management departments, pose problems of sustainability. The results of the chlorophyll (a and b) content assay as a function of the high and low temperatures show a decrease in the synthesis of chlorophyll in comparison with the control in all the species studied, except for Acacia heterophylla Willd and the Maclura pomifera. The accumulation of proline was well marked at the roots at temperatures (-6 ° C and 44 ° C) in all species indicating resistance to thermal stresses, growth rates in the higher are obtained from Phytolacca americana. Sugar levels are generally more concentrated in the leaves than other organs in Acacia heterophylla Willd. However, for the other species the concentration is
higher at the root level. Protein assay results in the organs of Melia azedarach, Acacia heterophylla Willd, and Fraxinus angustifolia show a strong accumulation of these at leaf levels relative to other organs; unlike Maclura pomifera and Phytolacca americana where the highest accumulation is observed at the root level. All young plants noted an increase in peroxidase activity as temperatures increased, except for Maclura pomifera, which experienced a decrease in potency. Increasing values of antioxidant activity may suggest tolerance / adaptation. It was found that Acacia heterophylla Willd, Melia azedarach, and Fraxinus angustifolia exhibited the highest specific activities under thermal stress. The present contribution shows that these species can exhibit interesting catalytic properties, as well as thermal resistance.
Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/BEN7808.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11640 Typologie et adaptation des espaces verts de l'agglomération d'El Khroub (Constantine). [texte imprimé] / Nour El Houda Benkouachi, Auteur ; Djamel Alatou, Directeur de thèse . - 05/10/2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Gestion Durable des Écosystèmes et Protection de L’environnement gestion durable espace vert diversité floristique stress thermique marqueurs biochimique sustainable management green space floristic diversity heat stress biochemical markers الإدارة المستدامة المساحات الخضراء التنوع في النباتات الاجهاد الحراري العوامل البيوكيميائية Index. décimale : 570 Sciences de la vie. Biologie Résumé : "The sustainable management of green spaces requires a vast set of arboreal practices both in terms of its design (landscape study, choice of species), as its maintenance, it is intended to find a balance between landscape comfort, ecological requirements and practical and economic constraints. This work aims essentially to draw a typology appropriate to the green spaces of the city of El Khroub with the help of the GIS software, to inventory and evaluate the viability of the diversity of the ligneous of the city, and to integrate the social part in this evaluation, to propose a differentiated management mode, and finally to elucidate the effect of heat stress by biochemical markers (chlorophyll, proline, soluble sugars, proteins, catalase and peroxidase) on the adaptability of seedlings of Acacia heterophylla Willd, Fraxinus angustifolia, Maclura pomifera, Melia azedarach, and Phytolacca americana vis-à-vis high and low temperatures. Our results reveal the existence of 11 types among the 13 proposed by Jancel, the predominant type is the accompaniments of collective dwellings; we note the deficit of green spaces in the city of El Khroub with a ratio of 0.53 m² / ha, a recovery rate of 1.58%, and a total density of about 1.33/ km². The inventoried results on the floral diversity of the city of El Khroub shows the existence of 34 species belonging to 18 families for the tree layer, and 19 species belong to 14 families for the shrub and herbaceous strata, their states varies between good, medium and bad. Alignment trees and plants that constitute green spaces remain dependent on the aesthetic, ornamental, and does not meet the ecological characteristics (adaptation), this is confirmed by the respondents. In fact, the dispersed greening operations, by the responsible management departments, pose problems of sustainability. The results of the chlorophyll (a and b) content assay as a function of the high and low temperatures show a decrease in the synthesis of chlorophyll in comparison with the control in all the species studied, except for Acacia heterophylla Willd and the Maclura pomifera. The accumulation of proline was well marked at the roots at temperatures (-6 ° C and 44 ° C) in all species indicating resistance to thermal stresses, growth rates in the higher are obtained from Phytolacca americana. Sugar levels are generally more concentrated in the leaves than other organs in Acacia heterophylla Willd. However, for the other species the concentration is
higher at the root level. Protein assay results in the organs of Melia azedarach, Acacia heterophylla Willd, and Fraxinus angustifolia show a strong accumulation of these at leaf levels relative to other organs; unlike Maclura pomifera and Phytolacca americana where the highest accumulation is observed at the root level. All young plants noted an increase in peroxidase activity as temperatures increased, except for Maclura pomifera, which experienced a decrease in potency. Increasing values of antioxidant activity may suggest tolerance / adaptation. It was found that Acacia heterophylla Willd, Melia azedarach, and Fraxinus angustifolia exhibited the highest specific activities under thermal stress. The present contribution shows that these species can exhibit interesting catalytic properties, as well as thermal resistance.
Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/BEN7808.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11640 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BEN/7808 BEN/7808 Thèse Bibliothèque principale Thèses Disponible
Titre : Utilisation des arbres et des sols des bords de routes comme indicateurs de la pollution métallique : approches physico-chimique, biochimique et écotoxicologique. Type de document : texte imprimé Auteurs : Hana Alatou, Auteur ; Leila Sahli, Directeur de thèse Mention d'édition : 16/02/2020 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 295 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Ecologie et Environnement Sol arbres Eléments Traces Métalliques marqueurs biochimiques Constantine Soil trees Metallic Trace Elements biochemical markers التربة الاشجار معادن ثقيلة علامات بيو كيميائية قسنطينة Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The assessment of pollution intensity, through passive biomonitoring processes is a very efficient nvironmental technique used for several decades. Indeed, the use of organisms makes it possible to overcome encountered the difficulties during direct physico-chemical measurements, which are often very complex and expensive. In the region of Constantine, it is easy to see that we have a real pollution problem, on the one hand because of the existence of a large car fleet compared to the distances traveled and on the other hand certain climatic and topographical characteristics which create a favorable climate to the development of pollution. In this context, this study focused on the use interest of soils and trees (leaves and bark) as metal pollution indicators in urban areas. The concerned area is the national road N ° 03 linking the Constantine city center to Hamma Bouziane commune, in addition to a control zone which is remoted from any anthropogenic disturbance source (Arboretum of Draa Naga). In order to understand the objectives, three main axes were developed, namely: a pseudo-total and sequential contents quantification in metallic trace elements (HMS) in soils (0-20 cm and 20-40 cm), an abiotic or metallic stress evaluation via the assay of biochemical and HMS markers in 12 ligneous species leaves and bark that found, and also, the lead ecotoxicity assessment in some species via ecotoxicity tests. Our investigations related to the contamination level assessment by HMS were: cadmium (Cd), copper (Cu), manganese (Mn), lead (Pb) and zinc (Zn). Pseudo-total contents in HMS soils in both profiles record the following abundance order : Mn > Pb > Zn > Cu > Cd. Otherwise, the sequential contents study in soils allowed us to evaluate the HMS distribution in the different fractions and thus to highlight the anthropic contribution. Regarding to the revealing markers results of abiotic stress, it appears that the urban area trees have low chlorophyll levels, and high proline and soluble sugars levels compared to those in the control zone. The HMS quantification in leaves and bark recorded the following order of abundance: Mn > Zn > Pb > Cu > Cd. Trees turned out to be good metallic air pollution. The bioconcentration factor and the metal accumulation index confirmed the usefulness and effectiveness of these species in bioindication and / or phytoremediation For the ecotoxicity tests, the concentration that inhibits the 50% of seeds germination is 64.97 μg.L-1 for C. sempervirens and 110.43 μg.L-1 for P. halepensis. Lead seems to have a much greater toxic effect on seed germination of C. sempervirens than on P. halepensis.Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/ALA7613.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11449 Utilisation des arbres et des sols des bords de routes comme indicateurs de la pollution métallique : approches physico-chimique, biochimique et écotoxicologique. [texte imprimé] / Hana Alatou, Auteur ; Leila Sahli, Directeur de thèse . - 16/02/2020 . - جامعة الإخوة منتوري قسنطينة, 2020 . - 295 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Ecologie et Environnement Sol arbres Eléments Traces Métalliques marqueurs biochimiques Constantine Soil trees Metallic Trace Elements biochemical markers التربة الاشجار معادن ثقيلة علامات بيو كيميائية قسنطينة Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The assessment of pollution intensity, through passive biomonitoring processes is a very efficient nvironmental technique used for several decades. Indeed, the use of organisms makes it possible to overcome encountered the difficulties during direct physico-chemical measurements, which are often very complex and expensive. In the region of Constantine, it is easy to see that we have a real pollution problem, on the one hand because of the existence of a large car fleet compared to the distances traveled and on the other hand certain climatic and topographical characteristics which create a favorable climate to the development of pollution. In this context, this study focused on the use interest of soils and trees (leaves and bark) as metal pollution indicators in urban areas. The concerned area is the national road N ° 03 linking the Constantine city center to Hamma Bouziane commune, in addition to a control zone which is remoted from any anthropogenic disturbance source (Arboretum of Draa Naga). In order to understand the objectives, three main axes were developed, namely: a pseudo-total and sequential contents quantification in metallic trace elements (HMS) in soils (0-20 cm and 20-40 cm), an abiotic or metallic stress evaluation via the assay of biochemical and HMS markers in 12 ligneous species leaves and bark that found, and also, the lead ecotoxicity assessment in some species via ecotoxicity tests. Our investigations related to the contamination level assessment by HMS were: cadmium (Cd), copper (Cu), manganese (Mn), lead (Pb) and zinc (Zn). Pseudo-total contents in HMS soils in both profiles record the following abundance order : Mn > Pb > Zn > Cu > Cd. Otherwise, the sequential contents study in soils allowed us to evaluate the HMS distribution in the different fractions and thus to highlight the anthropic contribution. Regarding to the revealing markers results of abiotic stress, it appears that the urban area trees have low chlorophyll levels, and high proline and soluble sugars levels compared to those in the control zone. The HMS quantification in leaves and bark recorded the following order of abundance: Mn > Zn > Pb > Cu > Cd. Trees turned out to be good metallic air pollution. The bioconcentration factor and the metal accumulation index confirmed the usefulness and effectiveness of these species in bioindication and / or phytoremediation For the ecotoxicity tests, the concentration that inhibits the 50% of seeds germination is 64.97 μg.L-1 for C. sempervirens and 110.43 μg.L-1 for P. halepensis. Lead seems to have a much greater toxic effect on seed germination of C. sempervirens than on P. halepensis.Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/ALA7613.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11449 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ALA/7613 ALA/7613 Thèse Bibliothèque principale Thèses Disponible
Titre : Valorisation du Pin pignon (Pinus pinea L.) dans la région de Djebel Ouahch - Constantine Type de document : texte imprimé Auteurs : Chaima Touaba, Auteur ; Djamel Alatou, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 274 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Stone pine (Pinus pinea) Djebel Ouahch growth phenology thermal stress hydric stress biochemical markers croissance phénologie stress thermique stress hydrique marqueurs biochimiques الصنوبر الثمري جبل الوحش نمو فينولوجي الإجهاد الحراري الإجهاد المائي العوامل البيوكيميائية Index. décimale : 570 Sciences de la vie. Biologie Résumé : The Stone pine (Pinus pinea L.) is a forest tree species to be valorized on the economic level by its production of wood and pine nuts. In Algeria, it occupies a total surface of 3506 ha; the largest surface is located on the massif of Djebel Ouahch 2278 ha.
The present work aimed mainly at determining on the development and adaptation of this forest species in the zone of Djebel Ouahch for possible reforestations in form of equilateral plantings with a medium age of 40 years. Medium fruit-bearing production is assessed between 3,80 and 523,76 tons of pine nuts in shells. In good conditions, the quantity of harvested is 554,110 cone / hectare in the studied zone.
The physicochemical characterization of the study zone reveals a balanced texture, with a low percentage in loam (~ 27 %), a medium pH ranged between 6 - 7.5 and a very low total quantity of limestone.
On morphological level, the germinal capacity of seeds is of good quality with a bellow and above-ground live biomass fairly sustained. These morphological parameters showed a statistically significant difference among different treatments and seasons.
The seedlings grown in semi controlled conditions suffer from short –term stresses (03 hrs) in a range of temperature varying between-10 °C and 50°C while the biochemical markers (chlorophyll, proline, soluble sugars, proteins and enzymes) are quantified.
Under a thermal pressure, the results show an increase of the chlorophyll pigments at 38°C. The seedlings show an adaptation to lower temperatures at 44°C for the proline, the soluble sugars, the catalase and MDA. The intensity of hydric and thermal stress is significant for all analyzed parameters.
The Pine Seedlings are capable to accumulate the different osmolytes in the different organs in response to combined stress. The accumulation of soluble sugars is highly marked for the control at 38°C; while the increase of the proline is very significant in roots under thermal pressure at 38°C at level N1 and at 44°C at level N2 (55 %). The Seedlings show clear features of biochemical adaptation in response to combined, hydric and thermal, fluctuations.
The phenology analysis was observed on branches of a growth ranging between 15-20 years in the region of Provence-Alpes-Côte d'Azur and in the region of Djebel Ouahch. The exclusion of rainfall diminished the annual number of growth cycles of shoots and their duration and also the speed of needles growth.
The quality of the populations of Stone pine is moderately stable with a weak rate of regeneration and a quite high mortality rate due to anthropic action and fires.
Diplôme : Doctorat En ligne : ../theses/biologie/TOU7227.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10800 Valorisation du Pin pignon (Pinus pinea L.) dans la région de Djebel Ouahch - Constantine [texte imprimé] / Chaima Touaba, Auteur ; Djamel Alatou, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 274 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Stone pine (Pinus pinea) Djebel Ouahch growth phenology thermal stress hydric stress biochemical markers croissance phénologie stress thermique stress hydrique marqueurs biochimiques الصنوبر الثمري جبل الوحش نمو فينولوجي الإجهاد الحراري الإجهاد المائي العوامل البيوكيميائية Index. décimale : 570 Sciences de la vie. Biologie Résumé : The Stone pine (Pinus pinea L.) is a forest tree species to be valorized on the economic level by its production of wood and pine nuts. In Algeria, it occupies a total surface of 3506 ha; the largest surface is located on the massif of Djebel Ouahch 2278 ha.
The present work aimed mainly at determining on the development and adaptation of this forest species in the zone of Djebel Ouahch for possible reforestations in form of equilateral plantings with a medium age of 40 years. Medium fruit-bearing production is assessed between 3,80 and 523,76 tons of pine nuts in shells. In good conditions, the quantity of harvested is 554,110 cone / hectare in the studied zone.
The physicochemical characterization of the study zone reveals a balanced texture, with a low percentage in loam (~ 27 %), a medium pH ranged between 6 - 7.5 and a very low total quantity of limestone.
On morphological level, the germinal capacity of seeds is of good quality with a bellow and above-ground live biomass fairly sustained. These morphological parameters showed a statistically significant difference among different treatments and seasons.
The seedlings grown in semi controlled conditions suffer from short –term stresses (03 hrs) in a range of temperature varying between-10 °C and 50°C while the biochemical markers (chlorophyll, proline, soluble sugars, proteins and enzymes) are quantified.
Under a thermal pressure, the results show an increase of the chlorophyll pigments at 38°C. The seedlings show an adaptation to lower temperatures at 44°C for the proline, the soluble sugars, the catalase and MDA. The intensity of hydric and thermal stress is significant for all analyzed parameters.
The Pine Seedlings are capable to accumulate the different osmolytes in the different organs in response to combined stress. The accumulation of soluble sugars is highly marked for the control at 38°C; while the increase of the proline is very significant in roots under thermal pressure at 38°C at level N1 and at 44°C at level N2 (55 %). The Seedlings show clear features of biochemical adaptation in response to combined, hydric and thermal, fluctuations.
The phenology analysis was observed on branches of a growth ranging between 15-20 years in the region of Provence-Alpes-Côte d'Azur and in the region of Djebel Ouahch. The exclusion of rainfall diminished the annual number of growth cycles of shoots and their duration and also the speed of needles growth.
The quality of the populations of Stone pine is moderately stable with a weak rate of regeneration and a quite high mortality rate due to anthropic action and fires.
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Code-barres Cote Support Localisation Section Disponibilité TOU/7227 TOU/7227 Thèse Bibliothèque principale Thèses Disponible
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