Effect of rooting media and indole-3-butyric acid concentrations on regeneration potential of Elgon Olive (Olea welwitschii (Knobl.) Gilg & Schellenb) stem cuttings
| Autor: | Maduka, S M, Msogoya, T J, Chamshama, S A O |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Tanzania Journal of Forestry and Nature Conservation; Vol 86, No 2 (2017) |
| ISSN: | 2408-8129 2408-8137 |
| Popis: | Elgon olive which is prized for durablestructures and furniture has become rare andefforts to increase its population have beenhampered by poor seed germination ratesassociated with dormancy. Search foralternative multiplication of the species istherefore important. The effect of rootingmedia and rooting hormone on regenerationpotential of O. welwitschii were evaluatedusing leafy juvenile stem cuttings as analternative multiplication method. Afactorial experiment with 3 x 3 treatmentcombinations was established in a non-mistpropagator in a complete randomized designwith three replications. Factor one had threetypes of rooting media (fine river sandmixed with decomposed sawdust at 1:1 v/v,red clay subsoil and fine river sand) andfactor two was rooting hormone indole-3-butyric acid (IBA) with three concentrations(0, 3000 and 6000 ppm). Data on rootingpercentages and rooting variables weresubjected to analysis of variance using SAS.The combination of fine sand mixed withdecomposed sawdust media and cuttingstreated with IBA at 6000 ppm provided thehighest (p < 0.05) rooting of 92.3% andlargest (p < 0.05) number of roots percutting of 13.77. The combination of fineriver sand mixed with decomposed sawdustand treated leafy juvenile stem cuttings withIBA at concentration of 6000 ppm isrecommended as alternative technique foroptimum production of O. welwitschiiplanting materials. |
| Databáze: | OpenAIRE |
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