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The aim of this research to investigate the effect of drought and water pressure of Acacia senegal seedlings on different seed sources in Kordofan. The experiment was designed with a Randomized Complete Design of three replicates and three seed sources namely Elmazroub, Elrahad and Abassya and three irrigation levels (100, 50 and 25) % field capacity and two types of soil namely sandy and clay. Seedlings measurements were recorded (length, number of branches, number of leaves, and root collar diameter) and at the end of the experiment destroyed samples were taken to find out the biomass. Analysis of Variance was used as well as multiple Range Test. Results of showed that there were significant differences between the different sources of Acacia senegal tree in most of the measured variables. Elmazroub seed source was recorded as the best in term of water stress. The results indicated that the most appropriate field capacity for irrigation is 50% irrigation in both sandy and clay soils. Elmazroub plants showed that the best biomass for seedlings, with an average (1.0 g). The ability of Acacia senegal seedlings to overcome them according to their different environments and drought was a dominant factor in resisting water stress. It is recommended to investigate effect of drought on Acacia senegal seedlings after plantation in the field.
Anderegg William RL, Tamir Klein, Megan Bartlett, Lawren Sack, Adam FA Pellegrini, Brendan Choat, Steven Jansen. Meta-analysis reveals that hydraulic traits explain cross-species patterns of drought-induced tree mortality across the globe, Proceedings of the National Academy of the United States (PNAS); 2016.
Steinkamp Jörg, Hickle Thomas. Is drought‐induced forest dieback globally increasing? Journal of Ecology, British Ecological Society, Special Feature: Forest Resilience, Tipping Points and Global Change Processes; 2015.
Schwinning Susanne, Ehleringer James R. Water use trade‐offs and optimal adaptations to pulse‐driven arid ecosystems, Journal of Ecology, British Ecological Society; 2001.
Winters G, Otieno D, Cohen S, Bogner C, Ragowloski G, Paudel I, Klein T. Tree growth and water use in hyper arid Acacia occurs during the hottest and driest season, Physiological Ecology - Original Research, Oecologia. 2018;188:695–705
Kramer PJ. Drought stress and the origin of adaptations. In adaptation to Water and High Temperature Stress. Eds. N.C. Turner and P.J. Kramer. John Wiley and Sons, New York. 1980;7–20.
Oba G, Inger N, Stenseth NC, Stave JCS, Bjora JK, Muth-ondeki, WKA Bii. Growth performance of exotic and indigenous tree species in saline soils in Turkana, Kenya. J. Arid Environ. 2001; 47:499–511.
Abutaba YIM, Eldoma AMA, Mohamed SM. Variations in Nursery Seedlings Growth Performance of Azadirachta Indica Provenances in Sudan. The Journal of Agriculture and Natural Resources Sciences. 2015;2(2):475-479.
Kundu SK, Tigerstedt PMA. Geographical variation in seed and seedling traits of neem (Azadirachta indica A. Juss.) among ten populations studied in growth chamber. Silvae Genetica. 1997;46:129-137.
Khalil AAM, Grace J. Acclimation to drought in acerpseudoplatanus. (Sycamore) seedlings. Journal of Experimental Botany. 1992;43(257):1591-1602.
Kundu SK. Evaluation of provenance variation onearly growth and survival of neem (Azadirachta indica) in Bangladesh and India. Journal of Trop For Sci. 2000;12(3):509-523.
Kramer PJ. Water relations of plants. Academic press. New York; 1983.
Abrames MD. Sources of variation in osmotic potentials with special reference to Northern America tree species. For. Sci. 1988; 34:1030-1046.
Cregg BM. Seed sources variation in water relations gas change, and needle morphology of mature ponderosa pine trees. Can. J. For. Res. 1993;23:749-755.
Abutaba YIM, Eldoma AMA, Mohamed SM. Study of variation in drought tolerance among seedlings of four selected (Azadirachta indica. A. Juss) seed sources from Sudan, Jour. of Nat. Resour. & Environ. Stu. 2014;2,2(6):1-8.
ISSN 1683-6456 (Print): ISSN 2332-0109.
Sarr Mame S, Seiler John R, Sullivan Jay, Diallo Adja M, Strahm Brian D. Drought resistance and gum yield performances in a Senegalia senegal (L.) Britton progeny trial in Senegal, New Forests; 2021.
Tuomela K. Physiological and morphological response of Euclyptus microtheca provenances to water viability in tropical dry land. PhD thesis, Tropical Forestry reports (13). University of Helsinki, Department of Forest Ecology; 1997.
Otieno DO, Schmidt Adiku MWT, Tenhunen J. Physiological and morphological responses to water stress in two Acacia species from contrasting habitats, Heron Publishing—Victoria, Canada, Tree Physiology. 2005; 25:361–371.
Abutaba Yahia IM, Hammad Zeinab M. Comparing The performance of seedling growth of acacia senegal under shade and direct sunlight, International Journal of Agriculture, Environment and Bioresearch. 2020;5(04):2020.
Raddad EY, Luukkanen O. The influence of different Acacia senegal agroforestry systems on soil water and crop yields in clay soils of the Blue Nile region, Sudan, Agricultural Water Management. 2007; 8761–72.
Zlatev Z, Lidon FC. An overview on drought induced changes in plant growth, water relations and photosynthesis. J. Food Agric. 2012; 24:57-72.
Wentworth MMH, Murchie JE, Gray D, Villegas C, Pastenes M. Pinto and P. Horton. Differential adaptation of two varieties of common bean to abiotic stress. II. Acclimation of photosynthesis. J. Exp. Bot. 2006;57:699-709.
Ehleringer JR. Variation in gas exchange characteristics among desert plants. Ecol. Stud. 1994; 100:361–392.