Recent Research Advances in Biology Vol. 5

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dc.contributor.authorWasha B., Washa
dc.date.accessioned2021-02-28T23:36:43Z
dc.date.available2021-02-28T23:36:43Z
dc.date.issued2021-02-20
dc.descriptionAn overharvested species D. melanoxylon has a highly valued wood but not propagated.en_US
dc.description.abstractA study was conducted in Dalbergia melanoxylon (African Blackwood) comparing the ability to form seedling between seed germination in the soil, germination in the Murashge and Skoog medium (MS) and rooting of the cuttings to form a seedling. An overharvested species D. melanoxylon have a highly valued wood but not propagated. This is why in recent years there have been some efforts to conduct investigations that can improve seedling production. About 2 kilograms of seeds were purchased from TTSA and cuttings (root, softwood, and hardwood stem cutting) were collected from the forest for an experiment in 2010 at the Botany Department University of Dar es Salaam. Three treatments were employed for soil germination (Low, Medium, and High moisture level) while two treatments were employed for MS germination (Half strength and Full strength). Sterilizing reagents were 35%, 70% alcohol and 2.6% sodium hypochlorite. The sterilizing duration was 10, 20, and 30 minutes. Softwood, semi-hardwood, hardwood, and root cuttings were introduced in a non-mist propagator using soil inoculated with mycorrhizae. Data recorded include germination percentage, moisture level, MS concentration, sterilizing reagent concentrations and time used to sterilize the seeds, temperature, and humidity in the propagator and sprouting percentage of cuttings. Standard procedures were used to analyze and compare germination and rooting data as described by Zar, [1]. The highest germination in the soil was 21% while that of the MS was 19.8%, rooting was 100% in softwood cuttings and 37% in root cutting while semi-hardwood and hardwood cutting didn’t root at all. The two germination mediums (soil and MS) did not differ significantly while using cuttings implies harvesting of the existing forests which is not recommended. More investigations especially genetic transformation of the species for easy access in tissue culture are needed to improve seedling production of D. melanoxylon for the propagation of the species.en_US
dc.description.sponsorshipMkwawa University College of Educationen_US
dc.identifier.citationDOI: 10.9734/bpi/rrab/v5/1603Cen_US
dc.identifier.isbn978-93-90516-94-0
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5540
dc.language.isoenen_US
dc.publisherBook Publisher Internationalen_US
dc.relation.ispartofseriesISBN: 978-93-90516-93-3,;eBook ISBN: 978-93-90516-94-0
dc.subjectDalbergia melanoxylon; african blackwood; cuttings; rooting; murashige and skoog; germination; moisture level and non-mist propagator.en_US
dc.titleRecent Research Advances in Biology Vol. 5en_US
dc.title.alternativeChapter 2 The African Blackwood (D. melanoxylon) Seedling Initiation Technicality, (Germinability and Rootability)en_US
dc.typeBook chapteren_US
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