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Bogor Botanic Garden is an area designated to conserve and protect many species of plants from Indonesia and other countries as well. Most plant collections belonged to plants that continuously producing fruits. Many of fallen fruits produced by different plant species still remained optimally unmanaged and unutilized. The objective of this study was to increase the value of fallen fruits by utilizing it as raw materials for producing organic liquid fertilizer (POC). The first step of this study was conducted by collecting data about the species of fruiting plants. Liquid organic fertilizer was produced using a semi-anaerobic fermentation system with adding an effective microorganism 4 (EM 4). The results showed that there were 19 trees from 15 species such as Parmentiera cereifera, Ficus racemosa, F. fistulosa, and Dillenia indica. The fertilizers are made with a variety of supporting materials to produce liquid organic fertilizer (type A) and liquid organic fertilizer (type B). The temperature and pH had the similar value pattern during the fermentation process. Liquid organic fertilizer (type B) has a C/N ratio of 37.65, higher than liquid organic fertilizer (type A) which is 27.23. In addition, the C-organic liquid organic fertilizers (type B) was higher than liquid organic fertilizers (type A). The C-organic and N, P, and K contents have not reached the minimum technical standard for organic fertilizers that regulated on Decree of the Minister of Agriculture Number 261/KPTS/SR.310/M/4/2019. Eventually, the optimization attempts to increase the C-organic and N, P, and K contents on liquid organic fertilizer will be subsequently required.Abstract Kebun Raya Bogor merupakan kawasan konservasi tumbuhan yang memiliki koleksi berbagai macam jenis tumbuhan yang berasal dari Indonesia maupun dari luar negeri. Sebagian besar tumbuhan merupakan tumbuhan yang menghasilkan buah setiap tahunnya. Selama ini buah dalam jumlah banyak yang jatuh dari pohonnya belum termanfaatkan secara optimal. Tujuan dari penelitian ini adalah untuk meningkatkan nilai tambah limbah buah tersebut sebagai bahan dasar untuk pembuatan pupuk organik cair (POC). Studi awal dilakukan pendataan jenis tumbuhan yang berpotensi menghasilkan buah non-edible. Pembuatan POC dilakukan dengan sistem fermentasi semi-anaerobik menggunakan aktivator Effective Microorganism 4 (EM4). Hasil penelitian menunjukkan terdapat 19 pohon dari 15 jenis tumbuhan di antaranya Parmentiera cereifera, Ficus racemosa, F. fistulosa, dan Dillenia indica. Pupuk organik cair dibuat dengan variasi bahan pendukung yang berbeda menghasilkan POC A dan POC B. Pola perubahan suhu dan pH pada saat proses fermentasi relatif sama untuk kedua jenis POC. POC B memiliki rasio C/N sebesar 37,65 lebih tinggi dibandingkan dengan POC A yang hanya sebesar 27,23. Selain itu, konsentrasi Corganik POC B yang lebih tinggi daripada POC A. Nilai C-organik dan N, P, K diketahui belum mencapai standar teknis minimal pupuk organik berdasarkan SK Menteri Pertanian Nomor 261/KPTS/SR.310/M/4/2019 sehingga diperlukan optimalisasi fermentasi lebih lanjut.

Husaini IPA, Maulany RI, Nasri N, Ngakan PO. 2022. Diversity and use of traditional medicinal plant species in Bantimurung-Bulusaraung National Park, Indonesia. Biodiversitas 23: 5539-5550. The people of Minasatene (Pangkep District) in Bantimurung-Bulusaraung National Park, South Sulawesi (Indonesia) have used traditional medicinal plants for many centuries. However, this local knowledge has not been recorded. This study aims to examine the diversity of plant species used to treat various ailments in the area. A set of semi-structured questionnaires was distributed to 60 respondents, consisting of traditional healers, elderly people, herb sellers and local people of Minasatene. This was used to obtain a demographic profile, vernacular names of plants and their uses, plant parts used, modes of preparation and methods of application. The diversity and use of the medicinal plant species in a traditional context were descriptively analyzed. The data were further extrapolated using Use Value (UV) to analyze the relative importance of plant species based on the number of uses; Fidelity Level (FL) to determine the specific uses of each plant species and preference over other species, and Informant Consensus Factor (ICF) to investigate an agreement between each group of diseases and related remedies. The study reveals that there were 74 species of medicinal plants belonging to 65 genera and 44 families being used as traditional medicines, which have been known to treat 54 ailments. Among the plant species, soursop (Annona muricata) had the highest UV (0,95), while the fig tree species, Ficus septica (100%) had the highest FL with the most frequent citation. From the data gained, it was found that skeletomuscular disorders had the highest ICF value (0,92).

Myrtaceae fruit in Bogor Botanic Gardens (BBG) can be potentially developed as a unique and new fruit consumption style. The study aimed to determine the consumer preferences on Myrtaceae fruit. The method used was organoleptic testing, including a description, hedonic and rank tests. The parameters measured in this study are taste, color, flavor, texture, sound, and size of the fruit. Data analysis performed by the Kruskal-Wallis test. The results showed that most of the respondents preferred the fruit with a medium-size, tastes sour but not bitter, has attractive colors, has no pungent flavor, has soft and smooth texture, and is not crispy when it is bitten and chewed. The hedonic test showed that sample #4 and #7 have the highest average value of 4.7. The lowest average obtained in sample #3, where respondents did not like the sample. There was no significant difference of the average. The ranking of hedonic test result indicates the level of respondents' preferences in sequence are Eugenia sp. from Southeast Sulawesi, Myrtus pendula, Syzygium bankense, Syzygium aqueum, Eugenia sp. from Papua, Syzygium sp. from Seram Island, and Syzygium polycephaloides. Keywords: Bogor Botanic Gardens, consumer preference, Myrtaceae fruits, organoleptic test Abstrak Buah jambu-jambuan koleksi Kebun Raya Bogor berpotensi dijadikan buah konsumsi baru. Tujuan penelitian adalah untuk mengetahui dan menilai preferensi serta tingkat kesukaan masyarakat terhadap jenis buah jambu-jambuan koleksi Kebun Raya Bogor. Metode yang digunakan adalah uji organoleptik melalui metode uji deskriptif, uji kesukaan, dan uji rangking. Parameter uji meliputi rasa, warna, aroma, tekstur, suara, dan ukuran. Analisis data dilakukan secara deskriptif dan non-parametrik Kruskal-Wallis. Hasil penelitian memperlihatkan sebagian besar responden menyukai jenis buah berukuran sedang, rasa dominan masam tetapi tidak pahit, warna mencolok, aroma tidak menyengat, tekstur lunak dan halus, serta tidak renyah saat digigit. Hasil uji kesukaan menunjukan nilai rata-rata tertinggi sebesar 4,7 terdapat pada sampel #4 dan #7. Rata-rata terendah ditunjukkan pada sampel #3 sebesar 3,0, yaitu responden tidak menyukai sampel tersebut. Perbedaan rata-rata tersebut tidak signifikan. Perangkingan hasil uji kesukaan menunjukkan tingkat kesukaan responden secara berturut-turut adalah Eugenia sp. asal Sulawesi Tenggara, Myrtus pendula, Syzygium bankense, Syzygium aqueum, Eugenia sp. asal Papua, Syzygium sp, asal Pulau Seram, dan Syzygium polycephaloides. Kata kunci: buah jambu-jambuan, Kebun Raya Bogor, preferensi konsumen, uji organoleptik

Sorghum (Sorghum bicolor (L.) Moench) is a potential plant for food, livestock feed, biofuel, sugar, alcohol, and other bioindustry products. Sorghum could be adaptable to grow and expand in marginal areas of the world. Varieties of sorghum have their specific morpho-agronomic characters. It would be significant to compare the performance of multiple sorghum varieties to identify a suitable one for the intended use. The increase in biomass plant production could be caused by cultivation factors, such as an increased planting density. This study aims to determine the response of four different sorghum varieties to the treatment of the plant density on the biomass, grain production, and sugar content of stem juice. This research was conducted using two factors: sorghum variety (“Super 1,” “Keler,” “Lepeng,” and “Rio”) and the plant density (two, four, and six plants per hole or 106,667; 213,333; and 320,000 plants ha−1, respectively). The results of the study showed that all four sorghum varieties tested could be used as biomass resources. The highest plant dry biomass was gained from six plants per hole with 44.0 t ha–1, whereas the lowest one was two plants per hole with 30.4 t ha–1. “Super 1” was a superior variety due to the significant highest sugar content of the stem juice (13.9°Brix) and grain production. “Lepeng” variety was the lowest in both sugar content (8°Brix) and grain production, whereas “Keler” and “Rio” varieties contained sugar in between 8.5 and 10.8°Brix of the stem juice.