Arcadius Akossou

Arcadius Akossou
University of Parakou | UP · Faculty of Agronomy

Full Professor (Biometrics and Forestry)

About

69
Publications
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342
Citations

Publications

Publications (69)
Article
Full-text available
The aim of this study is to analyze the dynamics of land use in the Bandia classified forest from 2000 to 2020. Its objectives are, on the one hand, to identify the factors and impacts linked to changes in land use through a cartographic study and, on the other hand, to analyze the solutions proposed by stakeholders to safeguard this classified for...
Article
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Face aux défis croissants du changement climatique, il est crucial d'explorer les stratégies qui renforcent la résilience des communautés agricole. Cette étude est une contribution à la caractériser les systèmes agroforestiers (SAF) présents dans la commune en analysant leur diversité spécifique, en évaluant l’impact des pratiques agroforestières s...
Article
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The widespread use of mobile telephony and the internet constitutes an asset for digitalization in the agricultural sectors in Africa. Cotton being the leading export crop in Benin, this study aims to understand the determinants of the adoption of digitalization (use of digital machines, membership of a social network for information exchange, use...
Article
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As an important cultural element, people have used plants for centuriesfor various purposes. In Benin, the sale of medicinal plants in city markets is a reality that dates back years. To understand the practices in thefield, an ethnobotanical survey on plants with antidiabetic properties in the communes of Gogounou, Parakou, Abomey-Calavi and Pobew...
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Mobile money has significantly contributed to increasing the rate of financial inclusion in developing countries, including within the agricultural sector. However, although some cotton producers have adopted this technology, their perceptions of it vary from one region to another and from one individual to another. This study, conducted among cott...
Article
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Traditional medicine was, and still is, used by people who rely on the popular use of medicinal and aromatic plants and who are unable to bear the burdens of modern medicine. It is in this context that this study was initiated. The aim is to assess the biological diversity of anti-diabetic plants and local practices used in the traditional treatmen...
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Precision agriculture is experiencing remarkable growth in developing countries. Although a majority of producers have adopted digital technologies, many do not have a good perception. This study examined the case of cotton producers in Northern Benin. In this context, a survey was carried out among 314 cotton producers in the Municipality of Banik...
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Efficiency management of the canopy architecture of fruit trees such as cashew (Anacardium occidentale L.) is important to increase their productivity. In this study, the effects of branch position and pruning intensity on vegetative and fruit-bearing growth of cashew tree were investigated. In this context, the design of complete randomization wit...
Preprint
Full-text available
In this research, we introduce a groundbreaking distribution, termed the Modified Alpha Power Transformed Inverse Power Lomax Distribution (MAPT-IPLD), which offers a fresh perspective for modeling intricate datasets. By ingeniously amalgamating the modified alpha power transformation with the inverse power Lomax distribution, we have crafted a ver...
Preprint
Full-text available
The widespread use of mobile telephony and the internet constitutes an asset for digitalization in the agricultural sectors in Africa. Cotton being the leading export crop in Benin, this study aims to understand the determinants of the adoption of digitalization (use of digital machines, membership of a social network for information exchange, use...
Article
En Afrique subsaharienne, de nombreuses personnes n’ont pas accès à l'eau potable malgré les projets d'infrastructures. Le présent article se donne pour objectif d’évaluer les systèmes de gestion des infrastructures hydrauliques mises en place au centre du Bénin. Ainsi quatre groupes d’infrastructures hydrauliques ont été considérés. Il s’agit des...
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In Benin, Tamarindus indica is an endangered species. To deal with this situation, controlling its multiplication could be a solution. This study therefore aims to evaluate the effect of pre-treatment of its seeds on the germination and initial growth of its seedlings in the nursery. In this context, seven treatments were applied to seeds in a thre...
Article
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The effect of stump sprouts on the growth of trees in the main plantation under system of even-aged forest was investigated in this study. In this context, eight plantations taking into account the age, the number of thinning and the type of soil were selected. In order to assess the practices related to cutting height, a survey was carried out in...
Article
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The advent of management reforms in the field of drinking water supply has led to a new form of water resource management in Benin and in particular in the municipality of Ouessè. The objective of this article is to study the involvement of the populations in the management and supply of drinking water, before and during the leasing in the municipa...
Article
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Mangroves play an important role from an ecosystem and socioeconomic point of view for the riparian populations. They are however strongly degraded nowadays, because of anthropic activities. This study aims at evaluating the floristic potential of the mangrove of the Gbaga channel in order to measure the impact of anthropic activities. Within this...
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L’anacarde représente de nos jours une culture de rente de premier plan pour le Bénin. Bien qu’une attention particulière soit apportée à la filière anacarde, cette dernière demeure confrontée à un certain nombre de problèmes, notamment la méconnaissance des rendements des différentes accessions. Cette étude s’est proposé d’évaluer l’effet de l’âge...
Article
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Dams have been playing very important socioeconomic role for people living in underdeveloped countries. This study evaluates the water quality of four dams (Batran, KarakouDarou, Nawari and Tissarou) in the department of Alibori in northern Benin through physical, chemical and biological parameters. Physical properties including pH, conductivity, t...
Article
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The species yellow-fronted canary undergoes a real traffic due to its song and medico-magical properties in order to supply local commercial networks. This study aims to assess the socioeconomic and cultural importance of this bird in order to identify the cohorts of actors involved along this activity chain. In this context a survey was carried ou...
Article
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Birds use song for several goals as defending territory, alerting a partner to the presence of a predator, or wooing a female for breeding. This study aims to identify the morphometric parameters which determine the variability of the number of syllables in the "sexy" songs of yellow-fronted canary. For this purpose, sixteen morphometric parameters...
Article
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The fluctuation of the price of tomatoes during the year represents, for the Beninese population a real problem, both in terms of food and socio-economic. In this context, this work analyses the evolution of the selling prices of tomatoes in 11 Benin markets from 2006 to 2015. The tomatoes price experienced a high and strong fluctuation in most mar...
Article
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Effects of three different types of ploughing (light, middle and deep) on physical parameters of a tropical ferruginous soil of the Northern Benin, and their consequences on the growth and grain yield of two varieties of maize has been examined. The ploughing was achieved with a disk plow and the other cultural operations achieved manually. Results...
Article
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Agriculture has an important role in the development of the Beninese economy. Now, the sector has a major change with the agricultural motorization. In order to contribute to the sustainable management of farms, this study evaluated the effect of four motorized ploughing depths on soil structure and vegetative growth of maize. Results show that plo...
Article
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Accurate and non-destructive methods to determine individual leaf areas and dry mass of plants are very important. Since they stand as key parameters linked to plant production and are used in functional–structural plant models to simulate plant growth. This paper describes an investigation of the variation in cashew leaf dimensions at different si...
Article
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L’anacardier (Anacardium occidentale L.) occupe une place importante dans l’économie béninoise. La filière est confrontée cependant à un certain nombre de difficultés, notamment la méconnaissance des caractéristiques des différentes variétés par les planteurs. Cette étude est donc une contribution à la caractérisation des anacardiers présents dans...
Article
Maize represents the main food crop and grows in all agro-ecological zones in Benin. Various technologies were introduced to increase its yield; the impact of these technologies can be assessed through a spatiotemporal analysis of the yields. Thereto, the record of yields from 1987 to 2007 of 77 agriculture districts was collected. The spatial anal...
Article
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In Benin, teak plantations are important both economically and environmentally. Unfortunately, the farmer practice for installing plantations is to use seed "from everywhere" with no selection. This study aims at characterizing agronomically and morphologically teak seeds found in Benin in order to contribute to improving the farmer practice. There...
Article
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The aim of this study is to select "Plus Trees" based on dendrometric characteristics and wood properties in teak plantations in Benin and Togo. For this purpose, growth performance was assessed in 569 trees in 5 forests in Togo and 90 trees in 3 forests in Benin, based on diameter at breast height, total height and bole height measurements. Wood p...
Article
Key messageA retrospective architectural analysis performed on planted teaks in Togo showed that the variation of wood radial properties were linked with tree ontogeny, and that these relationships depended on thinning practices and provenance.ContextVariability in growth, flowering and forking in individual trees according to origin and/or thinnin...
Article
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Collinearity of predictor variables is a severe problem in the least square regression analysis. It contributes to the instability of regression coefficients and leads to a wrong prediction accuracy. Despite these problems, studies are conducted with a large number of observed and derived variables linked with a response variable. The aim of this s...
Article
Key message The surface area and dry biomass of leaves can be satisfactorily estimated from simple dimension measurements. These data are useful for estimating carbon allocation in trees using functional-structural growth models. Abstract Leaf area and leaf dry biomass are key parameters linked to plant production and they are used in functional-st...
Article
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Charcoal production is an increasing practice which however, remains traditional in Benin despite the introduction of new techniques of carbonization. The objective of this study is to evaluate the effect of species humidity on the production process, in the perspective of improving the yield in relation to farming practices. To achieve this, three...
Article
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The accuracy of ten methods of scaling (Smalian, Huber, Newton, Neloïd, paraboloid, cone, paracone, cylinder, truncated cone and truncated Neloïd) was evaluated on logs of 0.5, 1, 2 and 3 m cut to different heights of 27 teak trees. For this purpose, the volumes estimated by the ten formulas were compared with real volumes obtained by the technique...
Article
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In order to evaluate the effet of the structure of data collinearity , the quality of three estimators of collinearity was compared by simulation through various data sets. Th results showed that the three estimators are biased at least on small samples. When the variables are nominally independent, the estimator IC is less biased. By contrast, whe...
Article
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The effects of the data structure on the quality of the estimator R-square and adjusted R-square in linear multiple regression was evaluated by Monte Carlo simulation. A total of 216 data were generated through which the number of variables, the theoretical value of R-square value, the colinearity between the explanatory variables and the index of...
Article
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This study aimed to evaluate Pentadesma butyracea seeds germination, species vulnerable in Benin and having recalcitrant seeds, Under the influence of water and light, two key factors characteristic of the natural environment of this specie (forest gallery). The device set up for the study is a Complete Random Block where each level of light is ass...
Article
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Climatic factor’s effect was studied on the radial growth of teak (Tectona grandis L.F.) by using the stem analysis of 36 trees distributed in 6 plantations in Parakou and Tchaourou districts in northern Benin. The results showed that the plantations of Parakou were in general more productive than those of Tchaourou. The annual average growth was e...
Article
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L’étude des caractères morphométriques des abeilles est l’une des étapes d’un programme de conservation de leur diversité. L’objectif de cette étude est de déterminer les caractéristiques morphométriques d’Apis mellifera adansonii au Nord-Est du Bénin afin d’établir la pureté des colonies d’abeilles. Des échantillons d’un minimum de 120 abeilles pa...
Article
La pyriculariose du riz, maladie importante et prévalente dans le département de l’Alibori en République du Bénin, peut en fonction de la zone agro écologique et des systèmes de culture pratiqués, avoir plusieurs sources d’inoculum primaire tels les débris végétaux et les semences. Cette étude montre le rôle que jouent les semences dans les prévale...
Article
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Sanitary constraints of raising turkey in north-west Benin were studied by using a survey and Haemagglutination Inhibition Test (HIT) to detect antibodies of Newcastle Disease (ND) and Avian Influenza (AI). We tested 85 serums from 7- to 24-month-old turkeys raised in 19 farms. ND prevalence rate was 54% but reactions on four sub-types of AI were n...
Article
La pyriculariose du riz, maladie importante et prévalente dans le département de l’Alibori en République du Bénin, peut en fonction de la zone agro écologique et des systèmes de culture pratiqués, avoir plusieurs sources d’inoculum primaire tels les débris végétaux et les semences. Cette étude montre le rôle que jouent les semences dans les prévale...
Article
Full-text available
Monte Carlo simulation method was used to study the effects of the data structure on the quality of the predictions in linear multiple regression. Five hundred forty (540) data files were generated of which the number of variables, R-square, the collinearity between the explanatory variables and the index of coefficient, that measures the importanc...
Article
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Afin de caractériser les systèmes d’élevage bovin de la commune de Gogounou au nord-est du Bénin, une enquête concernant 102 élevages ayant un effectif total de 7.769 têtes de bovins a été réalisée. En utilisant les méthodes d’analyse factorielle des correspondances multiples (AFCM) et de classification hiérarchique ascendante (CAH), une typologie...
Article
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Consequences of variable selection on the interpretation of the results in multiple linear regression. A priori or a posteriori variable selection is a common practise in multiple linear regression. The user is however not always aware of the consequences on the results due to this variable selection. In this note, the presence of omission bias and...
Article
Consequences of variable selection on the interpretation of the results in multiple linear regression. A priori or a posteriori variable selection is a common practise in multiple linear regression. The user is however not always aware of the consequences on the results due to this variable selection. In this note, the presence of omission bias and...

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