EFFECT OF POSITION OF TAPPING, TREE STEM DIAMETER AND TAPPING TOOLS ON FRANKINCENSE YIELD OF<i>BOSWELLIA PAPYRIFERA</i>IN SOUTH KORDOFAN STATE, SUDAN

Ali, Abbas Hassan; Fadl, Kamal Eldin Mohammed; Adam, Idris Musa

doi:10.1080/14728028.2009.9752651

Cited by 7 publications

(9 citation statements)

References 4 publications

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“…Hochst is one of the key plant species in the dry lands of the Horn of Africa. Its aromatic resin frankincense constitutes one of the export articles providing considerable foreign currency for Ethiopia, Sudan and Eritrea (Ogbazghi, 2001;Lemenih, 2005;Ali et al, 2009). Frankincense is used for a variety of purposes from traditional medicine to industries such as pharmacology, perfume and food industries (FAO, 1995;Leung and Foster, 1996).…”

Section: Introductionmentioning

confidence: 98%

Time of collection and cutting sizes affect vegetative propagation of Boswellia papyrifera (Del.) Hochst through leafless branch cuttings

Haile

Gebrehiwot

Lemenih

et al. 2011

Journal of Arid Environments

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Section: Introductionmentioning

confidence: 98%

Time of collection and cutting sizes affect vegetative propagation of Boswellia papyrifera (Del.) Hochst through leafless branch cuttings

Haile

Gebrehiwot

Lemenih

et al. 2011

Journal of Arid Environments

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“…The collection of resin starts after 30-35 days and extends up to the end of June, and generally, there are about 4-9 pickings per season, depending on the weather conditions (Ali et al 2009). The hardened resin is removed at each tapping round, and the tapping wound is re-opened and enlarged (Tolera et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Renewal of the wound at the correct interval of days is critical; otherwise, the old wounds may heal completely (Lemenih and Kassa 2011). During tapping, the cut surface gradually moves upward, and each year a fresh cut is started at a different site (Woldie 2011) immediately above the old wounds (Ali et al 2009). Tree tapping is ceased 2-3 weeks before the rainy season (Gessmalla et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Boswellia papyrifera a tree of economic importance in dry land Sudan: Dendrometric parameters and tapping characteristics

et al. 2023

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Abstract. Dafa-Alla M, Abdelkari HA, Abuelbashar AI, Hassan MH. 2022. Boswellia papyrifera a tree of economic importance in dry land Sudan: Dendrometric parameters and tapping characteristics. Asian J For 7: 10-16. We conducted this research in Abugadaf Natural Forest Reserve (ANFR) located within Blue Nile state, Sudan. The objectives were to examine dendrometric parameters and to analyze tapping characteristics for frankincense production. We randomly distributed 97 sample plots; in each, we counted B. papyrifera trees, measured their diameter at breast height (dbh), total height, bole height, and crown diameter, and examined the correlation between crown diameter and dbh. We examined 116 tapping spots made on 13 randomly selected trees. In each tree, we measured upper and lower tapping heights, calculated potentially untapped bole height, counted the number of tapping spots, measured their dimensions, recorded their directions, and compared mean numbers of tapping spots at four directions using one-way ANOVA (?=0.05). Results revealed that the distributions of dbh and the total height of tapped B. papyrifera followed a bell shape, and that of bole height and crown diameter followed a bell-shaped skewed to the right. Results revealed a significant (P=0.000) correlation between crown diameter and dbh (N=499) that trees were tapped at the four directions without significant difference (P=0.427) between mean numbers of tapping spots at the four directions. The study concludes that current tapping practice doesn’t strictly adhere to recommended tapping guides, particularly with minimum lower tapping height and preference of concentration of tapping in east-west directions.

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“…Researchers in this field have focused primarily on resin production and trade (e.g. Johnson, 1998; Tadesse et al, 2004; Ali et al, 2009) rather than on the species’ ecology or the impacts of exploitation.…”

Section: Introductionmentioning

confidence: 99%

Making business scents: how to harvest incense sustainably from the globally threatened lansan treeProtium attenuatum

Daltry

Prospere²,

Toussaint³

et al. 2015

Oryx

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Wild tree resins generate billions of dollars in revenue annually but many species face extinction. The lansan tree Protium attenuatum has disappeared across most of its range as a result of overexploitation for its valuable oleoresin, which is used as incense. This study in Saint Lucia aimed to determine whether lansan resin could be harvested sustainably. Over  months,  trees were tapped using  experimental methods, and compared with  controls. Significantly more resin was produced by tapping the same trees repeatedly, tapping trees with a wider girth, cutting the same part of the trunk repeatedly, and, in particular, spraying diluted sulphuric acid on the cut. Applying  and % sulphuric acid boosted yields by  and %, respectively, without negative impacts on tree growth, condition or mortality. In contrast, traditional methods used by local tappers were destructive, causing greater decay and infection, slower growth rates and increased mortality. Results show tappers can obtain more resin and maintain healthy populations by tapping mature trees of $  cm diameter at breast height, using only one shallow cut per tree (refreshed every  weeks) and applying weak sulphuric acid solution. A blind survey found consumers could not distinguish between incense produced with or without this stimulant. A national management plan has been devised whereby tappers will be licensed and trained in the optimal method and granted their own forest coupes to manage under Forestry Department supervision. The methods and findings may guide the sustainable use and conservation of other resin-producing trees.

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EFFECT OF POSITION OF TAPPING, TREE STEM DIAMETER AND TAPPING TOOLS ON FRANKINCENSE YIELD OFBOSWELLIA PAPYRIFERAIN SOUTH KORDOFAN STATE, SUDAN

Cited by 7 publications

References 4 publications

Time of collection and cutting sizes affect vegetative propagation of Boswellia papyrifera (Del.) Hochst through leafless branch cuttings

Time of collection and cutting sizes affect vegetative propagation of Boswellia papyrifera (Del.) Hochst through leafless branch cuttings

Boswellia papyrifera a tree of economic importance in dry land Sudan: Dendrometric parameters and tapping characteristics

Making business scents: how to harvest incense sustainably from the globally threatened lansan treeProtium attenuatum

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