Influence of Soil Nutrients, Tree Age, and Sandalwood Provenances on Sandalwood Oil Yield and Quality

Q2 Agricultural and Biological Sciences

International Journal of Forestry Research Pub Date : 2022-12-07 DOI:10.1155/2022/1577979

M. Gathara, B. Kamondo, R. Mwadalu, S. Omondi, Mercy Kivuti, Norman W. Wairagu, Tom Oduor, P. Gachie

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引用次数: 0

Abstract

East African Sandalwood (Osyris laceolata) is an important tree species used in perfumery and pharmaceutical industries. In Kenya, the tree is illegally poached and smuggled mostly to India as a substitute for Asian sandalwood. Therefore, there is a need to domesticate E. A. sandalwood to ease pressure on natural stands. The aim of this study is to determine ecological factors influencing Osyris oil yield and quality to guide the selection of provenances for on-farm domestication. Soil and woody samples were obtained from 12 provenances and used for soil and oil analysis, respectively. The results showed that only tree age significantly influenced the oil yield (r = 0.31, p = 0.04 ). The GC-MS quality results recorded nine common and most abundant compounds across the study sites. These were Z-alpha-trans-bergamotol, alpha bisabolol, lanceol cis, beta bisabolene, alpha santalol, beta santalol, cis-alpha-copaene-8-ol, isopropyl myristate, and isopropyl palmitate. Baringo and Mbooni provenances had the highest number of compounds (8), followed by Homabay (7) while the majority (Chyulu, Kitui, Loita, Maralal, Marsabit, Muranga, and Narosura) had six and Ol Donyo Sabuk and Namanga had the least (5). The species diversity is therefore important for breeding, domestication, and conservation purposes.

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土壤养分、树龄和檀香种源对檀香油产量和品质的影响

东非檀香(Osyris laceolata)是一种重要的树种，用于香料和制药工业。在肯尼亚，这种树被非法偷猎并走私到印度，作为亚洲檀香的替代品。因此，有必要驯化檀香以减轻对自然林分的压力。本研究的目的是确定影响大黄油产量和品质的生态因素，以指导种源的选择和农场驯化。从12个种源获得土壤和木材样品，分别用于土壤和油分析。结果表明，只有树龄对产油率有显著影响(r = 0.31, p = 0.04)。GC-MS质量结果记录了9种最常见和最丰富的化合物。它们分别是z - α -反式佛手柑醇、α -比索洛尔、-杉木醇顺式、-比索洛尔、α -桑塔洛尔、-顺式- α -铜烯-8-醇、肉豆蔻酸异丙酯和棕榈酸异丙酯。Baringo和Mbooni种源的化合物数量最多(8个)，Homabay次之(7个)，Chyulu、Kitui、Loita、Maralal、Marsabit、Muranga和Narosura种源的化合物数量最多(6个)，Ol Donyo Sabuk和Namanga种源的化合物数量最少(5个)。因此，物种多样性对育种、驯化和保护具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Forestry Research Agricultural and Biological Sciences-Forestry

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

18 weeks

期刊介绍： International Journal of Forestry Research is a peer-reviewed, Open Access journal that publishes original research and review articles focusing on the management and conservation of trees or forests. The journal will consider articles looking at areas such as tree biodiversity, sustainability, and habitat protection, as well as social and economic aspects of forestry. Other topics covered include landscape protection, productive capacity, and forest health.