Antioxidant activity of some Sudanese medicinal plant methanolic extracts

Traditional medicines play a very important role in the health care system in Sudan, Cadaba glandulosa , Aristolochia bracteolata , Boscia senegalensis and Nymphaea lotus are used in folkloric medicine to remedy some diseases. The methanolic extracts were used to evaluate antioxidant activity to the plants which were mentioned above. B senglensis was shown high activity equal to 87+1, while N. lotus was represented 82+2. Also A. bracteolate and C. glandulosa exhibited moderate values (54+0.03 and 41+0.04 respectively).

Suitability of Parkinsonia aculeata (L.) Wood Grown as an Architectural Landscape Tree in North Darfur State for Interior Design and Furniture

Wood samples of Parkinsonia aculeata (L.) were collected from Al bohaira Gardens of Al Fashir Town (the capital of North Darfur State, Western Sudan) where they were planted as architectural landscape trees and studied to determine their physical and mechanical properties as potential wood species for structural and furniture purposes. Moisture content, wood density (basic and oven-dry), as well as radial and tangential shrinkage were determined. The mechanical properties studied included static bending strength, compression strength parallel to the grain, the modulus of elasticity (MOE), the modulus of rupture (MOR), and the maximum crushing strength. The obtained results were compared with those of the well-known dominant small hardwood tree in the same area (Boscia senegalensis ). The wood of P. aculeata has shown medium oven-dry density (534.0 kg m-3) with reasonable bark-to-wood and shrinkage ratio. Due to the acceptable bending and compression strength results, P. aculeata wood can be considered as a suitable wood for interior design and decoration work as well as its suitability for indoor furniture.

Effet de l’application de différentes doses de fertilisants organiques sur la croissance et le rendement de la tomate (Solanum lycopersicum L.) en conditions semi-contrôlées

L'objectif de cette étude est d’évaluer les effets de l'application de différents fertilisants organiques (fumier de vache, litières de Balanites aegyptiaca (L.) Del., Boscia senegalensis (Pers.) Lam. ex Poir. et Sclerocarya birrea (A. Rich.) Hochst) sur les paramètres de croissance et de rendement de la variété F1 Mongal de la tomate (Solanum lycopersicum L.) en conditions semi-contrôlées. L’étude a été effectuée à la ferme agricole de l’Université Gaston Berger de Saint Louis au Nord du Sénégal entre avril et juin 2018. Le dispositif expérimental utilisé est en blocs aléatoires randomisés avec quatre (04) répétitions, huit (08) traitements et trois (03) doses (0,2%, 0,5% et 0,8%). Les traitements appliqués sont : T0 (témoin sans apport de fertilisant), T1 (litière de Balanites aegyptiaca), T2 (litière de Boscia senegalensis), T3 (litière de Sclerocarya birrea), T4 (fumier), T5, T6 et T7 (mélange à proportion égale (½+ ½) de fumier et chacune des trois (03) litières). Après application des différents fertilisants organiques, une durée de décomposition de 15 jours a été observée avant semis dans des pots de 1,5 kg. Après 60 jours de croissance, les résultats obtenus ont montré que les effets sur la croissance de la tomate varient en fonction de la dose et de la qualité de la matière organique apportée. Les litières de B. senegalensis appliquées seules ou en combinaison avec le fumier et la litière B. aegyptiaca utilisée seule ont amélioré significativement certains des paramètres étudiés (hauteur, surface foliaire, biomasse sèche aérienne et couleur du feuillage) aux doses de 0,5% et 0,8%. Les meilleurs effets ont été induits par la plus forte dose (0,8%) de B. senegalensis. La litière de S. birrea n’a pas eu d’effets significatifs sur les paramètres de croissance et de rendements de la tomate. Le fumier n’a montré aucun effet sur les paramètres de croissance de la tomate par rapport au témoin sans fertilisant. Ainsi, la litière de B. senegalensis dans les conditions de cet essai, a montré un grand potentiel pour l’amélioration des paramètres de croissance et de rendement de la tomate. ABSTRACT The objective of this study is to evaluate the effects of the application of different organic fertilizers (manure, Balanites aegyptiaca (L.) Del., Boscia senegalensis (Pers.) Lam. ex Poir. and Sclerocarya birrea (A. Rich.) Hochst) on the growth and yield parameters of the F1 Mongal variety of tomatoes (Solanum lycopersicum L.) under semi-con controlled conditions. The study was conducted at the Gaston Berger University of Saint Louis farm in northern Senegal between April and june 2018. The experimental design used is randomized blocks with four (04) replicates, eight (08) treatments and three (03) doses (0.2%, 0.5% and 0.8%). The treatments applied are: T0 (control without fertilizer), T1 (Balanites aegyptiaca litter), T2 (Boscia senegalensis litter), T3 (Sclerocarya birrea litter), T4 (manure), T5, T6 and T7 (equal proportion of manure and each of the three (03) litters). After application of the various organic fertilizers, a decomposition time of 15 days was observed before sowing in 1.5 kg pots. After 60 days of growth, the results obtained showed that the effects on tomato growth vary according to the dose and quality of the organic matter supplied. B. senegalensis litter applied alone or in combination with manure and B. aegyptiaca litter used alone significantly improved some of the parameters studied (height, leaf area, aerial dry biomass and foliage color) at doses of 0.5% and 0.8%. The best effects were induced by the highest dose (0.8%) of B. senegalensis. S. birrea litter did not have significant effects on tomato growth and yield parameters. Manure showed no effect on tomato growth parameters compared to the control without fertilizer. Thus, the litter of B. senegalensis under the conditions of this trial showed great potential for improving tomato growth and yield parameters.