E-Journal Center for Plant Conservation Botanic Gardens-LIPI (Indonesian Institute of Sciences / Lembaga Ilmu Pengetahuan Indonesia)
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Keanekaragaman dan status konservasi Impatiens (Balsaminaceae) di Gunung Singgalang, Sumatra Barat
Full text linkFour species of Impatiens were collected from Mt. Singgalang, West Sumatra, Indonesia, namely I. singgalangensis Grey-Wilson, I. buennemeijeri Grey-Wilson, I. delectans Rild., and I. diepenhorstii Miq., of which the last three were collected in this mountain for the first time. I. buennemeijeri where previously reported to be endemic to Mt. Malintang, Likewise, I. delectans and I. diepenhorstii were reported as Mt. Kerinci endemics but are successfully collected here in the forests of Mt. Singgalang. Here descriptions, illustrations, and preliminary conservation status of those species are provided.Empat jenis Impatiens telah dikoleksi dari Gunung Singgalang, Sumatra Barat, Indonesia, yaitu I. singgalangensis Grey-Wilson, I. buennemeijeri Grey-Wilson, I. delectans Ridl., dan I. diepenhorsti Miq. Tiga jenis di antaranya, yaitu I. buennemeijeri, I. delectans, dan I. diepenhorstii pertama kali dikoleksi dari lokasi ini. I. buennemeijeri yang sebelumnya dilaporkan endemik di Gunung Malintang; I. delectans dan I. diepenhorstii yang diinformasikan endemik di Gunung Kerinci berhasil dikoleksi di hutan Gunung Singgalang. Dalam artikel ini disajikan deskripsi, gambar, dan status konservasi awal jenis-jenis tersebut
KARAKTERISASI STOMATA DAN AKAR PLANLET HASIL IRADIASI SINAR GAMMA PADA PROTOKORM Grammatophyllum scriptum (L.) Blume
Full text linkGrammatophyllum scriptum (L.) Blume, popularly known as tiger orchid, is one of Bogor Botanic Gardens’ collections. This species produces giant inflorescences with up to 27 flowers in each stalk. This study aims to characterize the stomata and roots of G. scriptum plantlets resulted from gamma irradiation. Gamma irradiation doses were applied for 0, 15, and 30 Gray (Gy). The gamma irradiation of 15 and 30 Gy showed a significant effect on stomatal density and minimum width of stomatal opening, but did not significantly affect the root tissue. The plantlets with a dose of 30 Gy showed thinner velamen tissues, lower stomata density, narrower stomatal opening, and a higher number of damaged stomata compared to those of the 15 Gy irradiated plantlets. The changes in stomata and roots at different doses as the effect of irradiation will lead to different ways to adapt to the environment.Grammatophyllum scriptum (L.) Blume atau dikenal sebagai anggrek macan merupakan salah satu anggrek koleksi Kebun Raya Bogor. Jenis ini memiliki perbungaan raksasa dengan ±27 kuntum bunga. Studi ini bertujuan untuk melakukan karakterisasi stomata dan akar dari planlet G. scriptum hasil iradiasi sinar gamma. Dosis iradiasi yang digunakan adalah 0, 15, dan 30 Gray (Gy). Hasil pengamatan menunjukkan iradiasi dengan dosis 15 dan 30 Gy memberikan pengaruh yang signifikan pada kerapatan dan lebar minimum bukaan stomata, namun tidak berpengaruh secara signifikan pada jaringan akar. Planlet dengan dosis 30 Gy memiliki jaringan velamen lebih tipis, stomata dengan kerapatan lebih rendah, celah stomata lebih sempit, dan jumlah stomata rusak lebih banyak, bila dibandingkan dengan planlet dosis iradiasi 15 Gy. Perubahan yang terjadi pada stomata dan akar pada dosis yang berbeda sebagai efek dari iradiasi akan memunculkan cara yang berbeda untuk dapat beradaptasi terhadap lingkungan
INTERSEPSI, LOLOSAN TAJUK, DAN ALIRAN BATANG EMPAT JENIS POLONG-POLONGAN UNTUK KONSERVASI TANAH DAN AIR
Full text linkLegume trees species (Fabaceae family) are widely used in the rehabilitation of degraded land as pioneer plants and soil fertilizers. The hydrological performances of legume trees for soil and water conservation have not been well known. The purpose of this study was to evaluate the amount of canopy interception, stem flow, and throughfall of four legume trees species in the Purwodadi Botanic Gardens. Four local legume species of Purwodadi Botanic Gardens collections were selected, namely Pterocarpus indicus, Cassia javanica, Senna siamea, Saraca indica and their hydrological performances were observed during 20–30 rainy days. The results indicated that the four legumes species have a similar canopy architecture model, namely trolls. Variations in the morphological characteristics of trees and leaves contribute variation value for canopy interception, throughfall, and stem flow. Interception and throughfall of the four tree species were valued at 30–70%, with a small stem flow ranging from 1–2%. Based on their hydrological performances, planting of the four legumes tree species for soil and water conservation requires efforts to control their high throughfall characteristic.Jenis polong-polongan (suku Fabaceae) banyak digunakan dalam kegiatan rehabilitasi lahan terdegradasi sebagai tanaman pionir dan penyubur tanah. Kinerja hidrologi pohon jenis polong-polongan dalam kaitannya dengan konservasi tanah dan air belum banyak diketahui. Tujuan penelitian ini adalah untuk mengevaluasi besarnya lolosan tajuk, aliran batang dan intersepsi empat jenis polong-polongan terseleksi di Kebun Raya Purwodadi. Empat jenis pohon polong-polongan lokal yaitu Pterocarpus indicus, Cassia javanica, Senna siamea, dan Saraca indica diamati kinerja hidrologinya selama 20–30 hari hujan. Hasil penelitian menunjukkan bahwa keempat jenis polong-polongan yang memiliki model arsitektur tajuk yang sama yaitu troll dengan variasi karakteristik morfologi pohon dan daun menghasilkan variasi nilai pada intersepsi tajuk, lolosan tajuk dan aliran batang. Intersepsi dan lolosan tajuk keempat jenis pohon mempunyai nilai seimbang berkisar 30–70%, dengan aliran batang yang dihasilkan kecil berkisar 1–2%. Berdasarkan kinerja hidrologinya tersebut, penanaman keempat jenis polong-polongan untuk konservasi tanah dan air memerlukan upaya pengendalian lolosan tajuknya
Studi awal injeksi in vivo auksin dan sitokinin pada kuncup bunga Rafflesia patma Blume
Full text linkThe controlling mechanisms for the growth and differentiation of Rafflesia from a flower bud into the anthesis stage is currently unknown, particularly if any plant growth regulator (PGR) physiological pathways play some type of roles. In the wild, the number of flower buds available to study are extremely limited. In this study, we grouped six flower buds of Rafflesia patma Blume into three different treatments: two buds injected with auxin (indoleacetic acid, IAA), two buds injected with cytokinin (kinetin), and two buds injected with sterile distilled water as a control. Buds enlarged with both IAA and kinetin treatments compared to the control, but only buds injected with IAA showed a transition stage with the bract revealed (cupule-bract stage from previously cupule stage) within two weeks of five weeks of observation. These results raise further questions whether Rafflesia development is more likely due to auxin exposure when in flower bud as compared to cytokinin. Future studies should include increased sample size for treatments, enhanced PGR administration to allow exposure to the tissue and less tissue damage, injection of other PGRs such as gibberellin (GA) and jasmonic acid (JA), and histological tissue analysis to investigate PGR effects in depth.Mekanisme yang mengendalikan pertumbuhan dan diferensiasi Rafflesia dari kuncup bunga hingga tahap anthesis belum diketahui sampai saat ini, terutama peran zat pengatur tumbuh (ZPT) dalam mekanisme fisiologinya. Jumlah kuncup bunga tanaman ini di alam yang tersedia untuk penelitian sangat terbatas. Studi ini menggunakan enam kuncup bunga Rafflesia patma Blume yang dikelompokkan dalam tiga perlakuan berbeda, yaitu dua kuncup diinjeksi dengan auksin (asam indolasetat-IAA), dua kuncup diinjeksi oleh sitokinin (kinetin), dan dua kuncup terakhir diinjeksi oleh akuades steril sebagai kontrol negatif. Hasil penelitian menunjukkan adanya perbesaran kuncup pada perlakuan IAA dan kinetin dibandingkan kontrol, tetapi hanya pada perlakuan IAA yang menunjukkan tahap transisi dengan merekahnya braktea (tahap kupula ketahap kupula braktea) dalam dua minggu dari lima minggu lama pengamatan. Hal ini memunculkan pertanyaan apakah perkembangan Rafflesia lebih bergantung pada auksin dibandingkan sitokinin. Rekomendasi untuk penelitian selanjutnya adalah penggunaan sampel kuncup yang lebih banyak, penerapan cara pemberian hormon dengan lebih baik, penggunaan ZPT lain seperti giberelin (GA) dan asam jasmonat (JA), dan penerapan analisis histologi untuk melihat pengaruh ZPT yang diberikan pada perkembangan jaringan pada kuncup
FENOFASE BUNGA Sarcotheca macrophylla Blume (Oxalidaceae) DAN INTERAKSINYA DENGAN FAKTOR LINGKUNGAN DI KEBUN RAYA BOGOR
Full text linkSarcotheca macrophylla Blume as known as kerumbai merah is an endemic plant of Borneo belonging to the family Oxalidaceae. Its fruits are edible and the Dayak Kenyah people in West Kutai, East Kalimantan, also use them as shampoo. Taxonomic studies of this species has been reported, however, studies on its flowering phenophases and phenology has never been found in the literature. This study aimed to describe the flowering development phases of S. macrophylla and determine the environmental factors affecting the process. Descriptive observations of the growth phase and environmental factors were carried out in the Bogor Botanic Gardens. The time of floral initiation of S. macrophylla was 30 days. The phase of the single flower small bud took place for 6 days. The phase of large bud occurred in 12 days. The anthesis phase needed 1–2 days. The fruit development took place for 36–40 days. The biotic factor that is thought to influence the flowering process is air temperature. The biotic factor that influenced the fertilization of S. macrophylla was insect visits from the families Hymenoptera, Curculionidae, Mitidae, and CicadellidaeSarcotheca macrophylla Blume Yang dikenal dengan nama kerumbai merah merupakan tumbuhan endemik Borneo anggota suku Oxalidaceae. Buah dari tumbuhan ini dapat dimakan dan masyarakat Dayak Kenyah di Kutai Barat, Kalimantan Timur memanfaatkannya sebagai sampo. Kajian mengenai taksonomi jenis ini telah dilaporkan, namun kajian mengenai fenofase dan fenologi pembungaan belum pernah ditemukan dalam pustaka. Tujuan penelitian ini adalah untuk mendeskripsikan proses pembungaan dan faktor lingkungan yang memengaruhi perkembangan bunga S. macrophylla. Pengamatan deskriptif dari fase perkembangan bunga dan faktor lingkungan yang mempengaruhinya dilakukan di Kebun Raya Bogor. S. macrophylla memiliki waktu inisiasi pembungaan selama 30 hari. Fase kuncup kecil bunga tunggal berlangsung selama 6 hari. Fase kuncup besar terjadi selama 12 hari. Fase antesis memerlukan waktu selama 1–2 hari. Perkembangan buah membutuhkan waktu selama 36–40 hari. Faktor biotik yang diduga berpengaruh pada proses pembungaan adalah suhu udara. Faktor biotik yang mempengaruhi pembuahan S. macrophylla adalah kunjungan serangga dari Hymenoptera, Curculionidae, Mitidae, dan Cicadellidae
ZINGIBERACEAE UTILIZATION FROM EAST BANYUMAS PRODUCTION FOREST AS NATURAL EDIBLE ADDITIVES
Full text linkBenefits of Zingiberaceae family’s plants for rural communities in forest villages are as raw gingery-stuff sources for food additives and health purposes. The superiority of Zingiberaceae’s plants is able to grow well under tree stands and on open sites. Survey on 50 respondents at forest villages under the Forest Management Unity of East Banyumas revealed that those gingery stuffs from eight Zingiberaceae’s plant species (i.e. Alpinia galanga (L.) Willd., Amomum cardamomum Willd., Boesenbergia rotunda (L.) Mansf., Curcumma domestica Val., C. zanthorrhiza Roxb., Etlingera elatior (Jack) R.M.Sm., Kaempferia galanga L. and Zingiber officinale Rosc., have been utilized as edible additives for food and drinks by the community in production forest vicinity. Zingiberaceae-derived additives were categorized as safely consumed for food ingredients/dressings, colorings, aromas, and healthy drinks. Cultivation of Zingiberaceae’s plants could bring economic values and positive impacts to the community and production forest environments. Several Zingiberaceae-derived food ingredients and local drinks have been modified into very-recent recipes, favored for special menus in ISFE’s cuisine-related tourism sites and in modern restaurants. Prospect of Zingiberaceae is expectedly able to develop productive efforts and economies in forest villages; and sustain production forest continually
Kegiatan Orientasi Calon Peneliti Baru Kebun Raya Purwodadi di Taman Nasional Alas Purwo Tahun 2019
Full text linkIn early 2019, four researcher candidates have been assigned to Purwodadi Botanic Garden. A series of training in Alas Purwo National park was organized to develop their technical skill mainly on plants identification. As a result, 35 plant species were collected, consisting of 29 genera from 28 families. The data from these activities was published in an accredited national journal.In early 2019, four researcher candidates were placed to Purwodadi Botanic Garden. In order to develop their abilities, orientation activities were carried out in the form of training on the introduction and identification of plants in the Alas Purwo National Park. From these activities, an additional about 35 number of plant collections were obtained, consisting of 29 genera and 28 families. In addition, the researcher candidates have also published the data from these activities in an accredited national journal