PSR

1. Biosynthèse de l’acide citrique 2. Procédés de production avec l’Aspergillus niger 2.1 Fermentation en surface 2.2 Fermentation submergée 2.3 Fermentation en phase solide 2.4 Procédés d’extraction 3. Procédés de production avec des levures du type Candida 4. Fiche produit 4.1 Propriétés physico-c

1. Biosynthèse de l’acide citrique 2. Procédés de production avec l’Aspergillus niger 2.1 Fermentation en surface 2.2 Fermentation submergée 2.3 Fermentation en phase solide 2.4 Procédés d’extraction 3. Procédés de production avec des levures du type Candida 4. Fiche produit 4.1 Propriétés physico-c

The molecular weight, sedimentation coefficient, and amino acids composition were determined on five tryptophanases (TPases) from Escherichia coli B and E. aurescens, Shigella alkalescens, and Proteus vulgaris and P. morganii. These TPases have identical sedimentation profile and coefficient (9.6 S), and the same molecular weight (220 000). Each enzyme is constituted of four identical subunits having a molecular weight of 55 000. The amino acids composition of these TPases is very similar, with the exception of P. morganii and P. vulgaris TPases which present significative variations in basic...

The molecular weight, sedimentation coefficient, and amino acids composition were determined on five tryptophanases (TPases) from Escherichia coli B and E. aurescens, Shigella alkalescens, and Proteus vulgaris and P. morganii. These TPases have identical sedimentation profile and coefficient (9.6 S), and the same molecular weight (220 000). Each enzyme is constituted of four identical subunits having a molecular weight of 55 000. The amino acids composition of these TPases is very similar, with the exception of P. morganii and P. vulgaris TPases which present significative variations in basic...

The molecular weight, sedimentation coefficient, and amino acids composition were determined on five tryptophanases (TPases) from Escherichia coli B and E. aurescens, Shigella alkalescens, and Proteus vulgaris and P. morganii. These TPases have identical sedimentation profile and coefficient (9.6 S), and the same molecular weight (220 000). Each enzyme is constituted of four identical subunits having a molecular weight of 55 000. The amino acids composition of these TPases is very similar, with the exception of P. morganii and P. vulgaris TPases which present significative variations in basic...

Freshwater inflow from the River Arc to the Etang de Berre (French Mediterranean coast) : hydrology, physical and chemical characteristics) . The influence of the Arc River on the ecology of Etang de Berre (a brackish lake located an the French Mediterranean coast) , of which it is the main tributary , has been studied during two years. The flow and some physical and chemical characteristics of the Arc were estimated. This river is featured by a mediterranean regime attenuated by karstic pondération and irrigation surplus. The average flow reaches 5 m3.s-1, but rare floods can enormously excee...

Freshwater inflow from the River Arc to the Etang de Berre (French Mediterranean coast) : hydrology, physical and chemical characteristics) . The influence of the Arc River on the ecology of Etang de Berre (a brackish lake located an the French Mediterranean coast) , of which it is the main tributary , has been studied during two years. The flow and some physical and chemical characteristics of the Arc were estimated. This river is featured by a mediterranean regime attenuated by karstic pondération and irrigation surplus. The average flow reaches 5 m3.s-1, but rare floods can enormously excee...

Dans cet article, nous tentons d’investiguer empiriquement le rôle médiateur de l’implication organisationnelle dans la relation entre l’autonomie au travail et l’intention de quitter l’organisation. Notre recherche porte sur les directeurs des études des établissements privés d’enseignement secondaire en Côte d’Ivoire auxquels nous avons soumis un guide d’entretien semi-directif et un questionnaire en utilisant un échantillon de convenance. Nos résultats révèlent l’intérêt d’intégrer les dimensions affective et calculée de l’implication organisationnelle dans l’analyse de l’influence de l’aut...

Dans cet article, nous tentons d’investiguer empiriquement le rôle médiateur de l’implication organisationnelle dans la relation entre l’autonomie au travail et l’intention de quitter l’organisation. Notre recherche porte sur les directeurs des études des établissements privés d’enseignement secondaire en Côte d’Ivoire auxquels nous avons soumis un guide d’entretien semi-directif et un questionnaire en utilisant un échantillon de convenance. Nos résultats révèlent l’intérêt d’intégrer les dimensions affective et calculée de l’implication organisationnelle dans l’analyse de l’influence de l’aut...

Dans cet article, nous tentons d’investiguer empiriquement le rôle médiateur de l’implication organisationnelle dans la relation entre l’autonomie au travail et l’intention de quitter l’organisation. Notre recherche porte sur les directeurs des études des établissements privés d’enseignement secondaire en Côte d’Ivoire auxquels nous avons soumis un guide d’entretien semi-directif et un questionnaire en utilisant un échantillon de convenance. Nos résultats révèlent l’intérêt d’intégrer les dimensions affective et calculée de l’implication organisationnelle dans l’analyse de l’influence de l’aut...

Turbidity of water due to the presence of suspended sediment is measured and interpreted in a variety of ways, which can lead to the misinterpretation of data. This paper re-examines the physics of light scattering in water, and exposes the extent to which the reporting of turbidity data is inconsistent. It is proposed that the cause of this inconsistency is the fact that the accepted turbidity standards USEPA Method 180.1, ISO 7027 and GLI Method 2 are mutually inconsistent, as these standards give rise to a large number of measurement units that are not based on the optical properties of lig...

Turbidity of water due to the presence of suspended sediment is measured and interpreted in a variety of ways, which can lead to the misinterpretation of data. This paper re-examines the physics of light scattering in water, and exposes the extent to which the reporting of turbidity data is inconsistent. It is proposed that the cause of this inconsistency is the fact that the accepted turbidity standards USEPA Method 180.1, ISO 7027 and GLI Method 2 are mutually inconsistent, as these standards give rise to a large number of measurement units that are not based on the optical properties of lig...

Turbidity of water due to the presence of suspended sediment is measured and interpreted in a variety of ways, which can lead to the misinterpretation of data. This paper re-examines the physics of light scattering in water, and exposes the extent to which the reporting of turbidity data is inconsistent. It is proposed that the cause of this inconsistency is the fact that the accepted turbidity standards USEPA Method 180.1, ISO 7027 and GLI Method 2 are mutually inconsistent, as these standards give rise to a large number of measurement units that are not based on the optical properties of lig...

A tradition of veterinary therapy developed very early in India and this has survived to the present time. Based on the Ayurveda ('knowledge concerning longevity'), a medical art which had its roots in the literature of the Veda (1500-1000 BC), Indian veterinary medicine is known for its specialised literature, which provides information on ancient methods of preventing and treating diseases of animals before the advent of modern medicine. Some of these treatments, little known outside India, are still practised today.

Euphorbia heterophylla est une adventice dont les feuilles et les tiges peuvent constituer 70 % de l’alimentation des lapins (Oryctolagus cuniculus L.). Par ailleurs, sa teneur en acide-linolénique (ALA, C18:3 n-3) (56 % des acides gras totaux) est proche de celle du lin (Linum usitatissimum). Afin de contribuer à un meilleur équilibre nutritionnel des populations, l’effet de la durée de la supplémentation d’un régime alimentaire à base de granulé (MOD0) par les feuilles et les tiges de cette adventice sur les teneurs en acide linoléique (LA, C18:2 n-6) et en ALA des muscles semimembranosus, l...

Euphorbia heterophylla est une adventice dont les feuilles et les tiges peuvent constituer 70 % de l’alimentation des lapins (Oryctolagus cuniculus L.). Par ailleurs, sa teneur en acide-linolénique (ALA, C18:3 n-3) (56 % des acides gras totaux) est proche de celle du lin (Linum usitatissimum). Afin de contribuer à un meilleur équilibre nutritionnel des populations, l’effet de la durée de la supplémentation d’un régime alimentaire à base de granulé (MOD0) par les feuilles et les tiges de cette adventice sur les teneurs en acide linoléique (LA, C18:2 n-6) et en ALA des muscles semimembranosus, l...

Euphorbia heterophylla est une adventice dont les feuilles et les tiges peuvent constituer 70 % de l’alimentation des lapins (Oryctolagus cuniculus L.). Par ailleurs, sa teneur en acide-linolénique (ALA, C18:3 n-3) (56 % des acides gras totaux) est proche de celle du lin (Linum usitatissimum). Afin de contribuer à un meilleur équilibre nutritionnel des populations, l’effet de la durée de la supplémentation d’un régime alimentaire à base de granulé (MOD0) par les feuilles et les tiges de cette adventice sur les teneurs en acide linoléique (LA, C18:2 n-6) et en ALA des muscles semimembranosus, l...

Euphorbia heterophylla est une adventice dont les feuilles et les tiges peuvent constituer 70 % de l’alimentation des lapins (Oryctolagus cuniculus L.). Par ailleurs, sa teneur en acide-linolénique (ALA, C18:3 n-3) (56 % des acides gras totaux) est proche de celle du lin (Linum usitatissimum). Afin de contribuer à un meilleur équilibre nutritionnel des populations, l’effet de la durée de la supplémentation d’un régime alimentaire à base de granulé (MOD0) par les feuilles et les tiges de cette adventice sur les teneurs en acide linoléique (LA, C18:2 n-6) et en ALA des muscles semimembranosus, l...

Euphorbia heterophylla est une adventice dont les feuilles et les tiges peuvent constituer 70 % de l’alimentation des lapins (Oryctolagus cuniculus L.). Par ailleurs, sa teneur en acide-linolénique (ALA, C18:3 n-3) (56 % des acides gras totaux) est proche de celle du lin (Linum usitatissimum). Afin de contribuer à un meilleur équilibre nutritionnel des populations, l’effet de la durée de la supplémentation d’un régime alimentaire à base de granulé (MOD0) par les feuilles et les tiges de cette adventice sur les teneurs en acide linoléique (LA, C18:2 n-6) et en ALA des muscles semimembranosus, l...

Euphorbia heterophylla est une adventice dont les feuilles et les tiges peuvent constituer 70 % de l’alimentation des lapins (Oryctolagus cuniculus L.). Par ailleurs, sa teneur en acide-linolénique (ALA, C18:3 n-3) (56 % des acides gras totaux) est proche de celle du lin (Linum usitatissimum). Afin de contribuer à un meilleur équilibre nutritionnel des populations, l’effet de la durée de la supplémentation d’un régime alimentaire à base de granulé (MOD0) par les feuilles et les tiges de cette adventice sur les teneurs en acide linoléique (LA, C18:2 n-6) et en ALA des muscles semimembranosus, l...

In traditional West African medicine, most practitioners are illiterate for official languages. 1127 local languages exist in this region. The transmission of knowledge in this traditional medicine is notoriously oral. In order to enable practitioners to communicate and preserve this knowledge, we are building SysMEDTRAD, a traditional medicine management system, based on a formal ontology of traditional medicine called ontoMEDTRAD. To overcome the language and illiteracy barriers, we propose to combine realistic photographs of plants with formal iconic descriptions of plants and recipes. This...

In traditional West African medicine, most practitioners are illiterate for official languages. 1127 local languages exist in this region. The transmission of knowledge in this traditional medicine is notoriously oral. In order to enable practitioners to communicate and preserve this knowledge, we are building SysMEDTRAD, a traditional medicine management system, based on a formal ontology of traditional medicine called ontoMEDTRAD. To overcome the language and illiteracy barriers, we propose to combine realistic photographs of plants with formal iconic descriptions of plants and recipes. This...

In traditional West African medicine, most practitioners are illiterate for official languages. 1127 local languages exist in this region. The transmission of knowledge in this traditional medicine is notoriously oral. In order to enable practitioners to communicate and preserve this knowledge, we are building SysMEDTRAD, a traditional medicine management system, based on a formal ontology of traditional medicine called ontoMEDTRAD. To overcome the language and illiteracy barriers, we propose to combine realistic photographs of plants with formal iconic descriptions of plants and recipes. This...

In traditional West African medicine, most practitioners are illiterate for official languages. 1127 local languages exist in this region. The transmission of knowledge in this traditional medicine is notoriously oral. In order to enable practitioners to communicate and preserve this knowledge, we are building SysMEDTRAD, a traditional medicine management system, based on a formal ontology of traditional medicine called ontoMEDTRAD. To overcome the language and illiteracy barriers, we propose to combine realistic photographs of plants with formal iconic descriptions of plants and recipes. This...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

Abstract West Africa, the largest cocoa‐producing region globally, has experienced significant deforestation in recent decades, leading countries to implement large‐scale agroforestry policies; however, most studies on farmers' adoption of agroforestry fail to consider the social (Who?), historical (When?), geographical (Where?), and ecological (What?) factors that influence their motivations to value trees. Drawing from a sample of 150 farmers responsible for the management of 12,096 trees, we quantified the motivations of farmers for 10 material and immaterial uses of trees and used a Bayesi...

In this paper, we provide a theoretical overview of the reasons behind the concentration of technological innovation in some areas. To do so, we first examine the issues of innovation as established by macroeconomic theories of growth then we discuss the incentives for its production according to market structures. Then, using an approach based on the economics and management of knowledge, we analyze the mechanisms and dynamics of the co-localization of innovative industries through the results of theoretical models of industrial organization. Specifically, we show that the localization of inn...

Mucuna pruriens (Fabaceae) is an established herbal drug used for the management of male infertility, nervous disorders, and also as an aphrodisiac. It has been shown that its seeds are potentially of substantial medicinal importance. The ancient Indian medical system, Ayurveda, traditionally used M. pruriens, even to treat such things as Parkinson's disease. M. pruriens has been shown to have anti-parkinson and neuroprotective effects, which may be related to its anti-oxidant activity. In addition, anti-oxidant activity of M. pruriens has been also demonstrated in vitro by its ability to scav...

Mucuna pruriens (Fabaceae) is an established herbal drug used for the management of male infertility, nervous disorders, and also as an aphrodisiac. It has been shown that its seeds are potentially of substantial medicinal importance. The ancient Indian medical system, Ayurveda, traditionally used M. pruriens, even to treat such things as Parkinson's disease. M. pruriens has been shown to have anti-parkinson and neuroprotective effects, which may be related to its anti-oxidant activity. In addition, anti-oxidant activity of M. pruriens has been also demonstrated in vitro by its ability to scav...

Mucuna pruriens (Fabaceae) is an established herbal drug used for the management of male infertility, nervous disorders, and also as an aphrodisiac. It has been shown that its seeds are potentially of substantial medicinal importance. The ancient Indian medical system, Ayurveda, traditionally used M. pruriens, even to treat such things as Parkinson's disease. M. pruriens has been shown to have anti-parkinson and neuroprotective effects, which may be related to its anti-oxidant activity. In addition, anti-oxidant activity of M. pruriens has been also demonstrated in vitro by its ability to scav...

Mucuna pruriens (Fabaceae) is an established herbal drug used for the management of male infertility, nervous disorders, and also as an aphrodisiac. It has been shown that its seeds are potentially of substantial medicinal importance. The ancient Indian medical system, Ayurveda, traditionally used M. pruriens, even to treat such things as Parkinson's disease. M. pruriens has been shown to have anti-parkinson and neuroprotective effects, which may be related to its anti-oxidant activity. In addition, anti-oxidant activity of M. pruriens has been also demonstrated in vitro by its ability to scav...

Mucuna pruriens (Fabaceae) is an established herbal drug used for the management of male infertility, nervous disorders, and also as an aphrodisiac. It has been shown that its seeds are potentially of substantial medicinal importance. The ancient Indian medical system, Ayurveda, traditionally used M. pruriens, even to treat such things as Parkinson's disease. M. pruriens has been shown to have anti-parkinson and neuroprotective effects, which may be related to its anti-oxidant activity. In addition, anti-oxidant activity of M. pruriens has been also demonstrated in vitro by its ability to scav...

Abstract(a, b) variously and irregularly shaped, massive, white-fleshed tubers

Abstract(a, b) variously and irregularly shaped, massive, white-fleshed tubers

Abstract The mirid bug Sahlbergella singularis feeds on cocoa pods and shoots, causing considerable crop losses. As laboratory experimentation requires numerous insects, this study aimed at improving available rearing method of S. singularis for Cameroon. Fifty second to fifth nymphal stages were collected at a cocoa farm and reared to the adult stage on cocoa pods in an insectary ( T = 24.7 ± 0.9°C, RH = 84.5 ± 6.8%, photoperiod: 12 : 12 L : D). Newly emerged females were confined for 5–6 days on cocoa twigs for sexual maturation and each female paired with a male for 24 h. The pairs were ret...

Abstract The mirid bug Sahlbergella singularis feeds on cocoa pods and shoots, causing considerable crop losses. As laboratory experimentation requires numerous insects, this study aimed at improving available rearing method of S. singularis for Cameroon. Fifty second to fifth nymphal stages were collected at a cocoa farm and reared to the adult stage on cocoa pods in an insectary ( T = 24.7 ± 0.9°C, RH = 84.5 ± 6.8%, photoperiod: 12 : 12 L : D). Newly emerged females were confined for 5–6 days on cocoa twigs for sexual maturation and each female paired with a male for 24 h. The pairs were ret...

Abstract The mirid bug Sahlbergella singularis feeds on cocoa pods and shoots, causing considerable crop losses. As laboratory experimentation requires numerous insects, this study aimed at improving available rearing method of S. singularis for Cameroon. Fifty second to fifth nymphal stages were collected at a cocoa farm and reared to the adult stage on cocoa pods in an insectary ( T = 24.7 ± 0.9°C, RH = 84.5 ± 6.8%, photoperiod: 12 : 12 L : D). Newly emerged females were confined for 5–6 days on cocoa twigs for sexual maturation and each female paired with a male for 24 h. The pairs were ret...

Abstract The mirid bug Sahlbergella singularis feeds on cocoa pods and shoots, causing considerable crop losses. As laboratory experimentation requires numerous insects, this study aimed at improving available rearing method of S. singularis for Cameroon. Fifty second to fifth nymphal stages were collected at a cocoa farm and reared to the adult stage on cocoa pods in an insectary ( T = 24.7 ± 0.9°C, RH = 84.5 ± 6.8%, photoperiod: 12 : 12 L : D). Newly emerged females were confined for 5–6 days on cocoa twigs for sexual maturation and each female paired with a male for 24 h. The pairs were ret...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

This study evaluated the antifungal activity of plant extracts against Phytophthora infestans, the causal agent of tomato late blight. It was conducted in an insect-proof high tunnel using a randomized complete block design with three replicates. Treatments included aqueous garlic extract (0.2 g/mL), carapa oil (12% (v/v)) and neem oil (20% (v/v)), mancozeb 80 WP-based fungicide (5 g/L), and the untreated control. The biopesticides were applied once a week, while the chemical fungicide was applied once a fortnight. Applications were done before or after inoculation with 3×105 zoospores/mL of t...

Latex production in Côte d'Ivoire is significantly influenced by meteorological conditions and various diseases, particularly foliar fungal diseases affecting Hevea brasiliensis, which can cause yield losses of up to 100%. This study aims to identify the climatic factors driving the severity of these diseases across different ecological zones. Surveys were conducted in budwood gardens (JBG) across six agroecological zones, with meteorological data collected on-site. The analysis identified Helminthosporium heveae, Colletotrichum gloeosporioides, and Corynespora cassiicola as the most prevalent...

Latex production in Côte d'Ivoire is significantly influenced by meteorological conditions and various diseases, particularly foliar fungal diseases affecting Hevea brasiliensis, which can cause yield losses of up to 100%. This study aims to identify the climatic factors driving the severity of these diseases across different ecological zones. Surveys were conducted in budwood gardens (JBG) across six agroecological zones, with meteorological data collected on-site. The analysis identified Helminthosporium heveae, Colletotrichum gloeosporioides, and Corynespora cassiicola as the most prevalent...

Latex production in Côte d'Ivoire is significantly influenced by meteorological conditions and various diseases, particularly foliar fungal diseases affecting Hevea brasiliensis, which can cause yield losses of up to 100%. This study aims to identify the climatic factors driving the severity of these diseases across different ecological zones. Surveys were conducted in budwood gardens (JBG) across six agroecological zones, with meteorological data collected on-site. The analysis identified Helminthosporium heveae, Colletotrichum gloeosporioides, and Corynespora cassiicola as the most prevalent...

Latex production in Côte d'Ivoire is significantly influenced by meteorological conditions and various diseases, particularly foliar fungal diseases affecting Hevea brasiliensis, which can cause yield losses of up to 100%. This study aims to identify the climatic factors driving the severity of these diseases across different ecological zones. Surveys were conducted in budwood gardens (JBG) across six agroecological zones, with meteorological data collected on-site. The analysis identified Helminthosporium heveae, Colletotrichum gloeosporioides, and Corynespora cassiicola as the most prevalent...

Latex production in Côte d'Ivoire is significantly influenced by meteorological conditions and various diseases, particularly foliar fungal diseases affecting Hevea brasiliensis, which can cause yield losses of up to 100%. This study aims to identify the climatic factors driving the severity of these diseases across different ecological zones. Surveys were conducted in budwood gardens (JBG) across six agroecological zones, with meteorological data collected on-site. The analysis identified Helminthosporium heveae, Colletotrichum gloeosporioides, and Corynespora cassiicola as the most prevalent...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

Aim/background: This study made it possible to assess the importance of Fusarium wilt of cotton in Côte d'Ivoire, through its distribution and the level of pathogenicity of populations of the pathogen. One of the factors limiting cotton production in Côte d'Ivoire is Fusarium wilt, a disease caused by the fungus Fusarium oxysporum f.sp. vasinfectum. Methods: The fungal material obtained from samples of cotton plants showing symptoms of Fusarium wilt in the field was used for the root dip inoculation test to evaluate the level of virulence of the twenty-four (24) isolates representative of our...

AbstractWe evaluated the farmer’s local knowledge and perceptions of sustainable cocoa agroforestry and sustainable soil carbon management in Ghana and Côte d'Ivoire using a social survey research methodology. We employed in-depth interviewing and focus group discussions to solicit information from identified key stakeholders in the cocoa supply chain focusing on the perception of sustainable cocoa agroforestry and soil carbon management. Our results revealed that about 83% and 50.5% of smallholder cocoa farmers from Côte d'Ivoire and Ghana respectively practiced agroforestry on their farms. T...

AbstractWe evaluated the farmer’s local knowledge and perceptions of sustainable cocoa agroforestry and sustainable soil carbon management in Ghana and Côte d'Ivoire using a social survey research methodology. We employed in-depth interviewing and focus group discussions to solicit information from identified key stakeholders in the cocoa supply chain focusing on the perception of sustainable cocoa agroforestry and soil carbon management. Our results revealed that about 83% and 50.5% of smallholder cocoa farmers from Côte d'Ivoire and Ghana respectively practiced agroforestry on their farms. T...

AbstractWe evaluated the farmer’s local knowledge and perceptions of sustainable cocoa agroforestry and sustainable soil carbon management in Ghana and Côte d'Ivoire using a social survey research methodology. We employed in-depth interviewing and focus group discussions to solicit information from identified key stakeholders in the cocoa supply chain focusing on the perception of sustainable cocoa agroforestry and soil carbon management. Our results revealed that about 83% and 50.5% of smallholder cocoa farmers from Côte d'Ivoire and Ghana respectively practiced agroforestry on their farms. T...

AbstractWe evaluated the farmer’s local knowledge and perceptions of sustainable cocoa agroforestry and sustainable soil carbon management in Ghana and Côte d'Ivoire using a social survey research methodology. We employed in-depth interviewing and focus group discussions to solicit information from identified key stakeholders in the cocoa supply chain focusing on the perception of sustainable cocoa agroforestry and soil carbon management. Our results revealed that about 83% and 50.5% of smallholder cocoa farmers from Côte d'Ivoire and Ghana respectively practiced agroforestry on their farms. T...

AbstractWe evaluated the farmer’s local knowledge and perceptions of sustainable cocoa agroforestry and sustainable soil carbon management in Ghana and Côte d'Ivoire using a social survey research methodology. We employed in-depth interviewing and focus group discussions to solicit information from identified key stakeholders in the cocoa supply chain focusing on the perception of sustainable cocoa agroforestry and soil carbon management. Our results revealed that about 83% and 50.5% of smallholder cocoa farmers from Côte d'Ivoire and Ghana respectively practiced agroforestry on their farms. T...

AbstractWe evaluated the farmer’s local knowledge and perceptions of sustainable cocoa agroforestry and sustainable soil carbon management in Ghana and Côte d'Ivoire using a social survey research methodology. We employed in-depth interviewing and focus group discussions to solicit information from identified key stakeholders in the cocoa supply chain focusing on the perception of sustainable cocoa agroforestry and soil carbon management. Our results revealed that about 83% and 50.5% of smallholder cocoa farmers from Côte d'Ivoire and Ghana respectively practiced agroforestry on their farms. T...

The cashew tree (Anacardium occidentale L.) is of vital importance to the Ivorian economy. Côte d’Ivoire is first world producer. However, its cultivation faces several constraints linked to anthracnose. The aim of this study was to assess the efficacy of two formulated bacterial biocontrol agents against anthracnose of cashew. To this end, in vitro confrontation tests were carried out against Colletotrichum gloeosporioides with two previously formulated bacterial biopesticides. Biocontrol tests were then carried out against anthracnose in greenhouses and cashew plantations. The results showed...

The cashew tree (Anacardium occidentale L.) is of vital importance to the Ivorian economy. Côte d’Ivoire is first world producer. However, its cultivation faces several constraints linked to anthracnose. The aim of this study was to assess the efficacy of two formulated bacterial biocontrol agents against anthracnose of cashew. To this end, in vitro confrontation tests were carried out against Colletotrichum gloeosporioides with two previously formulated bacterial biopesticides. Biocontrol tests were then carried out against anthracnose in greenhouses and cashew plantations. The results showed...