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Balinese Hindu community cannot be separated from plant in their life. The information on plant species and how to utilize them are easy to find but limited information about the potency of flowers in the Balinese Hindu community. Flowers have a meaning as sincerity, a symbol of Sang Hyang Widhi , the valour, and also have mythological values. This research aimed to determine the species of flowering plants that are often used for ceremonial and understand the meaning, the cultural conception related to conservation education. The study was carried out in four locations in Tabanan Regency (Baturiti, Penebel, Marga, and Tabanan). Data were collected using an interview with purposive sampling. Data analysis based on the value of Relative Frequency (FR) which is indicated plant most widely used. Â A total of 36 species of flowers are used in traditional Hindu religious ceremonies, of which 29 species are cultivated plants and 7 species are still wild. There are ten of plants which have high FR value, such as: Cananga odorata (FR 0.069), Impatiens balsamina (FR 0.069), Hydrangea macrophylla (FR 0.069), Plumeria acuminata (FR 0.069), Tagetes erecta (FR 0.069), Magnolia champaca (FR 0.069), Gomphrena globosa / bunga ratna (FR 0.047), Gardenia jasminoides / jempiring (FR 0.039), Nymphaea spp./ tunjung (FR 0.030), and Hibiscus rosa-sinensis L./ pucuk (FR 0.030). This research revealed the role of flower in Hindu ceremony and describe the strategic plant conservation due to culture of Balinese Hindu community. Finally, this research expected to documented local knowledge about flowers used as Hindu religious ceremonies, to provide an understanding of the meaning and conceptions of culture related to conservation education.

Citarum watershed is a region of approximately 6,610 km2 in West Java, Indonesia. Citarum watershed has been degraded through historical land use and vegetation clearing. Rehabilitation of Citarum watershed uses Indigofera tinctoria L. that has value as a source of natural blue dye and is considered suitable for the region. Species distribution modelling and Habitat suitability index (SDM/HSI) were undertaken for I. tinctoria. The occurrence and environment data (bioclimatic, topography, and soil type) were input to HSI. Results of the Indigofera tinctoria habitat suitability model in Citarum watershed are very good (0.9–1) for some parts of the Citarum watershed. The medium and high suitability areas were respectively 4.49% and 4.37% of the area were located in the lowlands (Bekasi Regency and Karawang Regency). Prediction based on climate modelling for 2050 and 2070 estimated that the medium-high suitability area of Indigofera tinctoria will be reduced relative to the present.

Penge Pakraman village is a traditional village that has the potency to become ecotourism. The emergence of new tourist attractions affects land changes to support tourism activities. This causes the number of plant species in nature to decrease. Plant conservation by utilizing local wisdom is one effort to reduce the decrease of plant species number. The application of Tri Hita Karana and Tri Mandala in Balinese daily life able to support plant conservation activity. The objective of this research was to determine the role of Tri Mandala concept in plant conservation at Pakraman Penge home garden. Data collection methods are carried out through observation plant location with inventory number and name of plants in house sample. Plant use continues with study literature. The results of an inventory of plant diversity in home gardens of Pakraman Penge village recorded 70 species of plants from 16 houses sample. The plant habitus varied from herbs, shrubs until trees. Plant species in the home gardens have functions for ceremonies (51%), medicinal (24%), ornamental (17%), food (6%), and spices (2%). However, based on the location, most plant species were found in madya mandala and the lowest were found in utama mandala . We also found plants with conservation status consist of least concerned (15 species), vulnerable ( Dracaena draco ), near threatened ( Cycas rumphii ), endangered ( Coffea arabica ). Therefore, the application of Tri Mandala concept on Balinese home gardens supports plant conservation and gives economic benefit in individual level

Living collection such as tree in botanical garden has hazard risk. Tree hazard risk must be evaluated to give safety for visitor and employee. However, standing tree with decay wood inside is often the cause of tree failure. Internal tree defect such as wood decay cannot be seen only from visual investigation but must be done with ArborSonic acoustic tomograph to get accurate result. The objective of this research was to diagnostics wood decay in the stand of Joannesia princeps Vellozo tree using visual investigation and ArborSonic measurement technology. The result shows Joannesia princeps has severe damage cause of wood decay especially in the base of the trunk. Wood decay percentage range from 21-49%. The alleged caused of this damage is stem borer and termites. This information give advantage for Bali Botanical Garden manager to minimize this tree hazard risk by doing activity such as crown pruning, give hazard risk tree sign to limit activity around this tree and do pest management.