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Forests. Growth and Physiology of Senegalia senegal (L.) Britton Seedlings as Influenced by Seed Origin and Salinity and Fertility Treatments / Mame Sokhna SARR
Forests. Growth and Physiology of Senegalia senegal (L.) Britton Seedlings as Influenced by Seed Origin and Salinity and Fertility Treatments [texte imprimé] / Mame Sokhna SARR, Auteur ; John R Seiler, Auteur ; Jay Sullivan, Auteur . - Octobre 2017 . - 15 p. : Ref.
Langues : Anglais (eng)
Catégories : FORESTERIE Mots-clés : Senegalia senegal salt tolerance fertilizer drought Index. décimale : K030- Génétique et amélioration des plantes Résumé : Multipurpose trees such as Senegalia senegal are widespread in arid and semi-arid lands that have natural or induced saline soils and poor soil fertility. Such environmental problems impact
growth and have the potential to influence plant physiological adaptations. Identifying superior
genotypes better adapted to these environmental stresses will be of great importance for tree selection for reclamation of degraded drylands. The main objective of this study was to examine the growth performance, and physiological and morphological adaptations to salinity, and fertility treatments of different Senegalia senegal families. We used five families (DB16, DB14, K4B19, K17B19, NB1) selected from 60 families of a Senegalia senegal progeny trial in Dahra, Senegal. Seedlings were grown under
greenhouse conditions by watering all plants for three weeks and then stopping all watering for
three more weeks. In a randomized complete block design, a two-level factorial combination was
used for salinity (zero and 183.1 mM NaCl added) and fertility (zero and 100 kg/ha N-P-K added)
treatments. A significant family salt fertilizer interaction was found for all biomass parameters (leaf dry matter, stem dry matter, root dry matter, and leaf area). The fertilizer application resulted in a significant increase of total biomass of all families, ranging from 63% to 237% for NB1 and K17B19, respectively. In contrast, salt only decreased total biomass of NB1 and K17B19 increased growth. Despite similar net photosynthetic rates before treatment started, fertilizer and salinity induced
different effects between families. Prior to drought stress, fertilizer did not affect photosynthesis of DB16, while salt significantly decreased stomatal conductance of all families. DB16 and N1B1, despite significant differences of stomata size and density, significantly decreased transpiration, and thereby increased their intrinsic water use efficiency. Under drought, relative growth rate was significantly
decreased. Given that genotype differences were found, these families and salinity and fertilizer treatments need to be explored in field trials.Exemplaires
Code-barres Cote Support Localisation Section Disponibilité FT1800018 K030-SAR Article scientifique CNRF Rayons Exclu du prêt Documents numériques
Cliquer pour pdfURL Frontiers in Sustainable Food Systems. Multi-Actors’ Co-Implementation of Climate-Smart Village Approach in West Africa: Achievements and Lessons Learnt / J. Bayala
Frontiers in Sustainable Food Systems. Multi-Actors’ Co-Implementation of Climate-Smart Village Approach in West Africa: Achievements and Lessons Learnt [texte imprimé] / J. Bayala, Auteur ; C. Ky Dembele, Auteur ; S. D Dayamba, Auteur ; J Somda, Auteur ; M. Ouédraogo, Auteur ; A. Diakite, Auteur ; A. Alhassane6,, Auteur ; A. B. Bationo3,, Auteur ; S. S. J Buah, Auteur ; D. Sanogo, Auteur ; A. Tougiani, Auteur ; R. B. Zougmoré5, Auteur ; T. S. Rosenstock, Auteur . - 2021 . - 13p. : cart ; tab ; ref.
Langues : Anglais (eng)
Catégories : FORESTERIE Mots-clés : daptation, ecosystem, farming system, mitigation, livelihood, resilience Index. décimale : K110-Techniques et opérations forestières. Pratique de la syiviculture. Résumé : Climate change and variability are significant challenges for the environment and food security worldwide. Development strategies focusing simultaneously on adaptive farming, productivity, and reducing greenhouse gas (GHG) emissions-known as climate-smart agriculture (CSA) strategies-are key to responding to these challenges. For almost a decade, within the framework of Climate Change, Agriculture and Food Security (CCAFS), World Agroforestry (ICRAF), and its partners have been using Participatory Action Research (PAR) to fully engage key stakeholders in co-creating such CSA development strategies. This includes the testing of Agricultural Research for Development (AR4D) CSA scalability options. The multidisciplinary teams include the National Research and Extension Systems (NARES), national meteorological services (NMS), non-profit organizations (NGOs), and local radio programs, among others. The CCAFS-West Africa Program,World Agroforestry-West and Central Africa (ICRAF-WCA), International Union for Conservation of Nature (IUCN), University of Reading, and Centre Régional de Formation et d’Application en Agro-météorologie et Hydrologie
Opérationnelle (AGRHYMET) provide technical backstopping to the national teams. Climate information (CI) was used as an entry point to inform the development of CSA technologies and practices within Climate-Smart Villages (CSV). This groundwork has led to a greater understanding of three critical factors for successful CSV implementation: (1) Building strong partnerships to co-design and develop agricultural systems that improve ecosystemand population resilience, (2) Key stakeholders (researchers, farmers, development agents, and students) capacity strengthening through vocational and academic training, and (3) Using CI for livelihood planning at all scales. These three factors support more effective identification and testing of agricultural technologies andpractices addressing climate variability and change at plot, community, and levels. This paper discusses the PAR-CSA methodology and parameters for evaluation, including biophysical and social change. Keys to success, including communication,
knowledge sharing tools, and scalability are also discussed. Finally, future opportunitiesfor improvement are presented, including knowledge product development, CSA policy and investment planning, capacity building, further engagement of the private sector, and additional research on existing practices and tools.Réservation
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Exemplaires
Code-barres Cote Support Localisation Section Disponibilité FT2200033 K110. BAY Article scientifique CNRF Dépot numérique A télécharger
DisponibleDocuments numériques
Cliquer pour voirURL Geoderma. Influence of the controlled dual ectomycorrhizal and rhizobal symbiosis on the growth of Acacia mangium provenances, the indigenous symbiotic microflora and the structure of plant parasitic nematode communities / Robin Duponnois
Geoderma. Influence of the controlled dual ectomycorrhizal and rhizobal symbiosis on the growth of Acacia mangium provenances, the indigenous symbiotic microflora and the structure of plant parasitic nematode communities [texte imprimé] / Robin Duponnois, Auteur ; H Founoune, Auteur ; D Lesueur, Auteur . - (FR) : IRD, 2002 . - 18p. : ref,;.
Langues : Anglais (eng)
Catégories : FORESTERIE Mots-clés : Ectomycorhize, Acacia, Structure de la Plante, Nématode, Biomasse Index. décimale : K110-Génie forestier Exemplaires
Code-barres Cote Support Localisation Section Disponibilité PV1700018 K110-DUP Article scientifique LNRPV Rayons Exclu du prêt Documents numériques
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GUIDE. Guide pratique de techniques de gréffage de l'Anacarde [texte imprimé] / Halimatou Sadiya BA, Auteur ; Mamoudou Abdoul Touré, Auteur ; Cheikh Oumar Samb, Auteur ; Souley BADIANE, Auteur . - [S.l.] : ISRA, [s.d.] . - 22 pages : ill.
Langues : Français (fre)
Catégories : FORESTERIE Mots-clés : Guide, greffage, greffon, porte greffe, isra, coraf Exemplaires
Code-barres Cote Support Localisation Section Disponibilité FT1900028 BAH Publication CNRF Rayons Exclu du prêt Documents numériques
Cliquer pour voirURL Icraf. Méthodologie expérimentale et collecte des données en agroforesterie / Inge Vissers
Icraf. Méthodologie expérimentale et collecte des données en agroforesterie [texte imprimé] / Inge Vissers, Auteur . - [S.l.] : Icraf, 1993 . - 13p.+ annexes I; II; III;IV : Diagramm; Tabl.
Langues : Français (fre)
Catégories : FORESTERIE Mots-clés : Agroforesteri Formation Collecte des données Index. décimale : K121-Systèmes agroforestiers Exemplaires
Code-barres Cote Support Localisation Section Disponibilité FT2300002 VIS Rapport CNRF Rayons Exclu du prêt In : natural ressources and social conflits in the Sahel. Les acacias gommiers au Sahel : exsudation gommière et production perspectives / J. Vassal
PermalinkIn: Production and utilization of multi-purpose fadder shrubs and trees in West Asia, North Africa and the Sahel. Atriplex. Salsola. Exploitation des arbres à usages multiples dans les systèmes d'élevage des zones soudanienne et sahelienne / S. Touré-Fall
PermalinkIn : sygga. Période de saignée et potentialités en gomme arabique de quelques localités de la zone gommière du Sénégal / M. Dione
PermalinkIn : sygga III troisième symposium sous régional sur le gommier et la gomme arabique. Quelques résultats sylvicles préliminaires concernant les deux phénotypes de acacia senegal / M. Dione
PermalinkInt. J. Biol. Chem. Sci., Vol 8, N°(6). Caractérisation des méthodes de coupe de bois dans les zones aménagée et non aménagée en Haute Casamance, Sénégal / T MBAYE
PermalinkInternational Journal of Biological and Chemical Science. La Régénération Naturelle Assistée (RNA) comme un moyen de reverdir le bassin arachidier au Sénégal : cas du terroir de Khatre Sy / Marcel Badji
PermalinkInternational Journal of Biological and Chemical Science. Valeurs bromatologique et nutritive de jeunes feuilles de Sterculia setigera Del. / MBOW Ma Anta
PermalinkInternational Journal of Biological and Chemical Science, Vol 6; N°3. Caractérisation physico-chimique de la gomme Sterculia de trois localités de la région de Tambacounda au Sénégal / Arona Ndiaye Samba Samba
PermalinkInternational Journal of Biological and Chemical Science, Vol 9, n°2). Etude de la germination de cinq provenances de Tamarindusindica L. en conditions de stress hydrique au Sénégal / Cheikh Oumar Samb
PermalinkInternational Journal of Biological and Chemical Science, Volume 9, Number 1. La Régénération Naturelle Assistée (RNA) comme un moyen de reverdir le bassin arachidier : cas du terroir de Khatre Sy / M Badji
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