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This study was conducted to investigate the effect of different pre-sowing treatments of seeds on germination and growth performance of native threatened tree species Lithocarpus elegans at the nursery of Chittagong University, Bangladesh. Seeds were placed to eight pre-sowing treatments e.g. control (PT0), treated with sand paper rubbing (PT1), nicking (PT2), seeds immersed in cold water for 24 hours (PT3), seeds immersed in cold water for 48 hours (PT4) and seeds immersed in cold water for 7 days (PT5), seeds sown at propagator house (PT6), seeds immersed in cold water for 7 days and then sown at propagator house (PT7). Germination percentage was found highest (100%) in seeds sown at propagator house (PT6) followed by seeds immersion in cold water for 24 hours (PT3) (91.11%). For fertilizer dose experiment to seedlings at the nursery level, treatment FT1: 100 kg/ha (0.33679 g urea/pot/seedling) comparing with other treatments FT0: 0 kg/ha (Control), FT2: 200 kg/ha (0.67358 g urea/pot/seedling) showed better performance in case of shoot length, collar diameter, number of leaves, shoot fresh weight, total fresh weight, total dry weight, volume index. Finally, it can be concluded that Lithocarpus elegans seedlings revealed better performances under the seed pre-treatment PT6 (seeds sown at propagator house) and fertilizer dose FT1 (100 kg N ha-1) in growth and biomass production.
Ahmed ZU, Begum ZNT, Hasan MA, Khodker M, Kabir SMH,Ahmad M, Ahmed ATA, Rahaman AKA, Haque EU. Encyclopedia of flora and fauna of Bangladesh. Angiosperms: Dicotyledons (Acanthaceae-Asteraceae). Asiatic Society of Bangladesh. Dhaka; 2008b.
Khan MS, Rahman MM, Ali MA. Red data book of vascular plants of Bangladesh. Bangladesh National Herbarium. BinimoiPrinters, Dhaka; 2001.
Hossain MA, Hossain MK, Salam MA, Rahman R. Composition and diversity of tree species in dudhpukuria-dhopachori wildlife sanctuary of Chittagong (South) forest division,Bangladesh. Res J Pharm Biol Chem Sci. 2013;4(2):1447–1457.
Ahmed ZU, Begum NT, Hasan MA, Khodker M, Abir SMH, Ahmad M, Ahmed ATA, Rahaman AKA, Haque EU. Encyclopedia of flora and fauna of Bangladesh. Angiosperms: Mono-cotyledons (Orchidiaceae-Zingiberaceae), Asiatic Society of Bangladesh. Dhaka. 2008a;6:408.
Dayamba SD, Savadogo P, Diawara S, Sawadogo L. Perspectives in restoration: Storage and pretreatments of seeds for better germination of Sudanian savanna-woodland species. J For Res. 2016; 27(4):773–778.
Djavanshir K, Pourbeik H. Germination value: A new formula. Silvae Genet. 1976; 25, 79-83.
Manavalan A. Seedling Vigour and Bioproductivity in Woody Biomass Species. Ph.D. thesis. Madurai: Madurai Kamarajar University; 1990.
Abdul-Baki A, Anderson JD. Vigor determination in Soybean seed by multiple Criteria. Crop Sci. 1973;13:630-633.
Dickson A, Leaf AL, Hosner JF. Quality Appraisal of White Spruce and White Pine Seedling Stock in Nurseries. The Forestry Chronicle. 1960;36(1):10–13.
Hoque ATM R, Hossain MK, Mohiuddin M, Hoque MM. Effect of Inorganic Fertilizers on the Initial Growth Performance of Michelia champaca Linn. Seedlings in the Nursery. J of Bio. Sci. 2004;4(4):489-497.12.
Afa FD, E Bechem E, Andrew FA, Genla FB, Ambo Ndah NR. Effects of organic and inorganic fertilizers on early growth characteristics of Khaya ivorensis Chev (African mahogany) in nursery. African Journal of Plant Science. 2011;5(12):722 729.
Hossain MS, Hossain MK. Effect of NPK fertilizers on the growth of Telsur seedlings. Bangladesh J Agric and Environ. 2006;2(1):17-24.
Andrew EE, Limbi TB, Ayamoh EE, Response of Four Species of Tropical Timber Seedlings to Urea and Folivert Fertilisers in Nursery. Journal of Advances in Agriculture. 2018;9:1579-1593.
Awang K, Katim I. Growth response of Gmelina arborea Roxb. Seedlings to N, P and K fertilizers on Bungor Soil. Malay For. 1986;9:358-370.
Zwierink M. Growth response of potted seedlings of Gmelina arborea roxb. to an omission trial of nitrogen, phosphorus potassium and lime. For Res Rep SR. Sarawak For. Dept. 1984;25.
Onuwaje O, Uzu F. Growth response of rubber seedlings to N, P and K fertilizer in Nigerai. Fert Res. 1982;3:169-175.
Van den Driessche R. Fertilizer experiments in conifer nurseries of British Columbia. B C For Ser Res. 1977;79: 32.