Abstract. Mela YJA, Bria EJ, Tnunay IMY. 2022. Ethnobotany of semi-arid medicinal plants used by Bunaq Tribe in Lamaknen, Belu District, East Nusa Tenggara, Indonesia. Intl J Trop Drylands 6: 16-25. The diversity of traditional medicinal plants of the Bunaq Tribe in Lamaknen, Belu District, East Nusa Tenggara, Indonesia, is a basic study of the development of local potential in supporting plant conservation in the border areas of Indonesia. This study aimed to determine the types of medicinal plants, the organs used, processing methods and ways of using plants as traditional medicines, and species use-values ??(SUV) by the Bunaq Tribe in Belu District, a semi-arid climatic area in Timor Island, Indonesia. This study uses a descriptive qualitative and quantitative approach. The research method used was semi-structured interviews with village shamans. The results showed that there were 26 families consisting of 63 species of plants used as medicine. Fabaceae had the highest number of species used in medicine. The most widely used growth form was a tree and the most frequently used plant part was the leaf (30%). The most widely applied processing method was boiling. Turmeric (Curcuma longa L.) showed the highest use-value, 0.57, compared to other species. In conclusion, the Bunaq Tribe still preserves traditional knowledge of medicinal plants through village shamans. This information can be used as the basis for developing the social and cultural values of the Bunaq Tribe in the border areas of Indonesia.
The decline in Timorese local garlic yields will have an impact on farmers' income and the existence of the garlic. One of the decline factors is production. The purpose of this study is the implementation of an electric field as a stimulant for garlic growth. The electric field used is an AC electric field with an output frequency of 1.0 kHz. The variation of the electric field used is 1. 28, 1.55, 1.80, 2.12, and 2.48 kV/m. The results showed that exposure to an electric field in garlic resulted in a better germination rate, average germination time, and shoot and root growth rate compared to the control. The treatment of exposure to an electric field of 1.55 kV/m resulted the most optimum in the germination rate, average germination time and growth rate of shoots and roots with the respective values (11.4 ± 0.6) %/etmal, (1.4 ± 0, 1) day, (2.83 ± 0.09) mm/day, and (2.04 ± 0.09) mm/day. Increasing germination, shortening the average germination time and growth rate are expected to increase local Timor garlic production.
Sorghum has great potential to be developed in marginal lands of Indonesia including East Nusa Tenggara. However, the information about sorghum diversity in this area was very limited. This research aimed to describe morphological variation, and assessing the value of genetic diversity based on morphological characters of local sorghum cultivar of East Nusa Tenggara. The exploration and sample collection were conducted in 3 islands, i.e.: Timor, Sumba, and Flores. The observation of morphological characters was based on sorghum descriptor. Morphological character similarities were analyzed using Simple Matching (SM) coefficient, and a dendrogram was constructed using Unweighted Pair Group Method with Arithmetic Average (UPGMA) method. The results showed that 36 accessions of sorghum in East Nusa Tenggara varied in 17 morphological characters. At the similarity coefficients of 48%, all sorghum accessions were separated into 2 groups based on the presence or absence of aleurone layer. Group I consisted of 12 accessions with no aleurone layer, while group II consisted of 24 accessions has aleurone layer. The genetic diversity of sorghum of East Nusa Tenggara is low (I=0.62-0.71 and h=0.37-0.42). The genetic diversity between populations (H T =0.4203) is higher than within populations (H S =0.3961). This study provides the first complete information about sorghum diversity in East Nusa Tenggara that will be useful as basic information for sorghum development in this area in the future.
Lontar is a plant that distributed in tropical areas and has beneficial values for the people in Tuamese Village, Biboki Anleu District, North Central Timor Regency. However, the information about the ethnobotany of lontar is not documented. This research aimed to determine the utilization of lontar in Tuamese Village. Data were collected using semi-structured interview techniques and field observation. The ethnobotany data were analyzed to calculate cultural significance index value. The results showed that the people in Tuamese Village who generally work as lontar farmers use stem, leaves, flowers, and fruit as building and fence materials, handicraft materials, food and drink ingredients, and firewood. Product from sap flower, namely liquid sugar, slab sugar, and traditional fermented drink (sopi) are the leading trade commodity. The utilization of lontar in Tuamese Village is grouped into seven forms of utilization with index of cultural significance 151 and classified very high. The classification means that lontar greatly affects people's lives in Tuamese Village and its use has become cultured. People's dependence on lontar is very high so the conservation effort needs to make the existence of lontar is maintained. Keywords: index cultural significance, lontar, Tuamese
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