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VOL. 5, ISSUE 1 (2023)
A comparative assessment of propagation methods for Lannea schweinfurthii a critical threatened multipurpose tree species in Tanzanian Rangelands
Authors
B I Muzzo
Abstract
Seed, stem cutting with Indole-3-butyric acid (IBA) hormone, and media for air layering were compared in propagating L. schweinfurthii. 250 seeds were sun -dried under tree shade and each 10 sown in petri dishes for the next 5 consecutive days. Each set of 50 seeds was soaked in cold water for 1 day, then thoroughly washed early the 2nd day and unsoaked sun dried under tree shade for 2 days before sowing 10 each in petri dishes randomly with five replicates and watered daily. Germination percentage (GP) and Rate of germination (RG) were computed on 21st day. Using 280 stem cuttings of 7.5 cm length, IBA concentrations 0, 50, 75, and 150 mg/L were investigated by dipping (5 seconds) and soaking (12 hrs) in 10 media under CRD with 3 factorial arrangement. 10 random branches per 10 trees each where air layered with forest soil, rice husks, and saw dust. Sun drying for 2 and 3 days had the highest GP and RG of 64%, 1.24 day-1 and 44%, 0.32 day -1 respectively. However, water soaking for 1 day had higher GP and RG of 92% and 4.62 day-1 respectively. Stem cuttings did not root or shoot in 10 media despite using IBA. Sawdust had the highest root percentage, collar diameter, leaves, and root length of 70.83%, 2.567 cm, 75.01±3.3, and 16.6±1.3 respectively. Conclusively, water soaking L. schweinfurthii seeds for 1 day promote more effective seed growth than sun drying. Air layering using sawdust proved to be the fastest method of propagating L. schweinfurthii.
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Pages:19-27
How to cite this article:
B I Muzzo "A comparative assessment of propagation methods for <em>Lannea schweinfurthii</em> a critical threatened multipurpose tree species in Tanzanian Rangelands". International Journal of Agriculture and Plant Science, Vol 5, Issue 1, 2023, Pages 19-27
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