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2021 ◽  
Vol 15 (4) ◽  
pp. 1619-1628
Author(s):  
Mberdoum Memti Nguinambaye ◽  
Ngam-Asra Nadjioroum ◽  
Otchom Boy Brahim

Cette étude s’inscrit dans le contexte de la valorisation des espèces végétales spontanées ayant des valeurs  nutritives et économiques afin de contribuer à leur domestication. Cette étude a consisté à tester les capacités germinatives des graines de l’Ampelocissus multistriata par les procédés physiques, chimiques et mécaniques d’une part et tester l’aptitude au bouturage des tiges feuillées, des tiges feuillées avec des racines tubéreuses d’autre part. Pour cela, une surface de 400 m2 a été délimitée au sein de la Faculté des Sciences Exactes et  Appliquées de l’Université de N’Djamena pour les deux tests. Par ailleurs, les procédés physiques, chimiques et mécaniques ont été menés à l’Université de Ouagadougou. Les résultats obtenus, ont montré que les tiges feuillées n’ont pas bouturé. Par contre, les tiges feuillées munies des racines tubéreuses ont bouturé à 73,23 %. En ce qui concerne la germination des graines, tous les procédés des traitements physiques, chimiques et mécaniques n’ont pas pu lever la dormance de ces graines. Leurs téguments, très durs, n’ont pas été scarifiés et cela n’a pas permis à l’eau et l’oxygène d’y entrer pour que les graines puissent germer. Seules, les graines ayant séjourné dans le tube digestif des animaux et qui ont été scarifiées par les enzymes intestinales et les sucs digestifs ont toutes germé. Il s’agit d’une endozoochorie. La connaissance des modalités de la propagation par les graines ou par les boutures peut apporter une importante contribution à la conservation de la diversité végétale, à la domestication et à la valorisation de cette plante.   English title: Germinative capacity of seeds and aptitude for cutting of stems, tuberous roots of the species Ampelocissus multistriata (Baker) Planch This study is part of the context of valuing spontaneous plant species with nutritional and economic values in order to contribute to their domestication. This study consisted in testing the germination capacities of the seeds of Ampelocissus multistriata by physical, chemical and mechanical methods on the one hand and testing the aptitude for cuttings of leafy stems, leafy stems with tuberous roots on the other hand. For this, an area of 400 m2 has been defined within the Faculty of Exact and Applied Sciences of the University of N’Djamena for the two tests. In addition, the physical, chemical and mechanical processes were carried out at the University of Ouagadougou. The results obtained showed that the leafy stems did not cuttings. In contrast, the leafy stems with tuberous roots cut at 73.23%. Regarding seed germination, not all physical, chemical and mechanical treatment processes were able to break the dormancy of these seeds. Their very hard seed coats were not scarified, and this did not allow water and oxygen to enter them for the seeds to germinate. Only the seeds which have stayed in the digestive tract of animals and which have been scarified by intestinal enzymes and digestive juices have all germinated. It is an endozoochory. Knowing the methods of propagation by seeds or cuttings can make an important contribution to the conservation of plant diversity, to the domestication and enhancement of this plant.


2018 ◽  
Vol 7 (4) ◽  
pp. 134
Author(s):  
Joan Lee

Sustainable Agriculture Research wishes to acknowledge the following individuals for their assistance with peer review of manuscripts for this issue. Their help and contributions in maintaining the quality of the journal are greatly appreciated. Sustainable Agriculture Research is recruiting reviewers for the journal. If you are interested in becoming a reviewer, we welcome you to join us. Please find the application form and details at http://www.ccsenet.org/journal/index.php/sar/editor/recruitment and e-mail the completed application form to [email protected].   Reviewers for Volume 7, Number 4 Aftab Alam, Edenworks Inc. New York, United States Benedict Jonathan Kayombo, Botswana College of Agriculture, Botswana Beye Amadou Moustapha, Rice Research Center, Cote d'Ivoire Daniel L Mutisya, Kenya Agricultural & Livestock Research Organization, Kenya Dietrich Darr, Hochschule Rhein-Waal, Germany Entessar Mohammad Al JBawi, General Commission for Scientific Agricultural Research, Syria Esther Shekinah Durairaj, Michael Fields Agricultural Institute, USA Giuseppina Migliore, University of Palermo, Italy Inder Pal Singh, Guru Angad Dev Veterinary and Animal Science University, India Katarzyna Panasiewicz, Poznan University of Life Sciences, Poland Manuel Teles Oliveira, University Tras os Montes Alto Douro (UTAD), Portugal Mehmet Yagmur, Ahi Evran University, Turkey Mirela Kopjar, University of Osijek, Croatia Mirza Hasanuzzaman, Sher-e-Bangla Agricultural University, Bangladesh Murtazain Raza, Subsidiary of Habib Bank AG Zurich, Pakistan Nehemie Tchinda Donfagsiteli, Institute of Medical Research and Medicinal Plants Studies, Cameroon Raghuveer Sripathi, Advanta US, Inc., USA Ram Niwas, District Institute of Rural Development, India Roberto José Zoppolo, Instituto Nacional de Investigación Agropecuaria, Uruguay Samuel Obae, University of Connecticut, United States Samuel Pare, University of Ouagadougou, Burkina Faso Stefano Marino, University of Molise, Italy Tenaw Workayehu, Hawassa Research Center, Southern Agricultural Research Institute, Ethiopia


2018 ◽  
Vol 5 (1) ◽  
pp. 52-64
Author(s):  
Pier Luigi Rossi ◽  
Minata Traore ◽  
Fatoumata Maïga Diallo

Nous avons rendu disponibles, en libre accès sur internet, les collections de mémoires et de thèses soutenues à l’Université de Bobo Dioulasso et à l’Université de Ouagadougou 1 (Burkina Faso). L’analyse des données de consultation (« fichiers de log » présents sur le serveur hôte) permet de produire plusieurs indicateurs concernant l’impact et la visibilité internationale des documents constituants les collections. Nous présentons la répartition temporelle et géographique des consultations, les fréquences des accès spécifiques à chaque document, la nature des questions, l’impact des moteurs de recherche. Ces résultats montrent qu’en mettant à disposition sur Internet des documents scientifiques produits par des institutions africaines, l’importance de leur visibilité et de leur impact peuvent être démontrés en utilisant les données de consultation disponibles sur le serveur. La comparaison de ces données avec celles disponibles pour les documents en libre accès de l’Institut français pour le développement (IRD) permet de conclure que les niveaux de consultation pour les publications scientifiques des pays du « Nord » et du « Sud » sont assez similaires.Two major collections of dissertations and theses defended at the University of Bobo Dioulasso and the University of Ouagadougou 1 have been made available open access on the Internet. The data analysis of accesses available via the host server makes it possible to produce several indicators concerning the impact and the international visibility of the available documents. We will present the temporal and geographical distribution of the consultations, the specific frequencies for each document, the nature of the questions, the impact of the search engines. These results seem to show that by making available on the Internet scientific documents produced by African institutions their visibility and impact are demonstrable with the data collected by the server. A comparison of these data with those available for the open access documents of the French Institute for Development (IRD) show that the levels of consultation for scientific publications from "Northern" and "Southern" countries are quite similar.


2016 ◽  
Vol 12 ◽  
pp. 5-21
Author(s):  
Rüdiger Wittig ◽  
Sita Guinko ◽  
Karen Hahn-Hadjali ◽  
Brice Sinsin ◽  
Georg Zizka ◽  
...  

The year 1989 represents the starting point of the cooperation between botanists of the Goethe-University in Frankfurt (Germany) and of the University of Ouagadougou (Burkina Faso). Some years later, the University of Abomey-Calavi (Benin) joined the cooperation. This paper gives an overview on joint projects, resulting publications and theses, and on other achievements of this fruitful cooperation, which meanwhile also comprises partners of Ivory Coast, Niger and Senegal.


2013 ◽  
Vol 46 (02) ◽  
pp. 434-435

After a competitive application process, the APSA Africa Project Steering Committee is pleased to announce that the 6th annual Africa Workshop will take place in Ouagadougou, Burkina Faso, hosted by the Institute for Governance and Development (IGD). The US-based workshop leaders are Leonardo Villalón and Kenneth Wald (both University of Florida). Their Africa-based colleagues are Einas Ahmed (Centre d'Études et Documentation Économiques, Juridiques et Sociales, Sudan), Augustin Loada (University of Ouagadougou and IGD, Burkina Faso), and Mahaman Tidjani-Alou (University of Abdou Moumouni, Niger). The theme of this year's workshop is “Religion and Politics in Comparative Perspective,” and will be held from July 1 to July 12 at the IGD's Center for Democratic Governance.


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