Plant diversity can not only be seen morphologically, but it can also be distinguished anatomically. Anatomical characters can be used to support and strengthen the plant classification. This study aims to determine the anatomical character of the leaves which can be used as a taxonomic identifier at the level of taxa through species representation. A total of 15 species belonging to 12 Indonesian flowering plant families were examined using the paraffin method for the transversal section and HNO3 was used for the paradermal section. Some anatomical characters observed in this study can be used as family characteristics or even species characteristics. The result revealed that all examined samples had similar anatomical characters with previous study which been carried out on the family, genus or species level. These similar anatomical characters consist of one to several characteristic such as stomatal type, anticlinal cell wall, mesophyll tissue, and vascular bundle (petiole and midrib). These results indicate that some anatomical characters can be used as specific characteristics from family level to species level.
{"title":"STRUKTUR ANATOMI DAUN SEBAGAI BUKTI DALAM PEMBATASAN TAKSON TUMBUHAN BERBUNGA: STUDI KASUS 12 SUKU TUMBUHAN BERBUNGA INDONESIA","authors":"Tri Yuni Indah Wulansari, Esthi Liani Agustiani, Sunaryo, Eka Fatmawati Tihurua","doi":"10.14203/bkr.v23i2.266","DOIUrl":"https://doi.org/10.14203/bkr.v23i2.266","url":null,"abstract":"Plant diversity can not only be seen morphologically, but it can also be distinguished anatomically. Anatomical characters can be used to support and strengthen the plant classification. This study aims to determine the anatomical character of the leaves which can be used as a taxonomic identifier at the level of taxa through species representation. A total of 15 species belonging to 12 Indonesian flowering plant families were examined using the paraffin method for the transversal section and HNO3 was used for the paradermal section. Some anatomical characters observed in this study can be used as family characteristics or even species characteristics. The result revealed that all examined samples had similar anatomical characters with previous study which been carried out on the family, genus or species level. These similar anatomical characters consist of one to several characteristic such as stomatal type, anticlinal cell wall, mesophyll tissue, and vascular bundle (petiole and midrib). These results indicate that some anatomical characters can be used as specific characteristics from family level to species level.","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121364014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Flavonoids is one of the secondary metabolites and consists of two phenyl rings (A- and B-rings) connected by a three carbon bridge. Over 8000 kinds of flavonoids were reported from vascular plants and Bryophytes. This paper reviewed the flavonoid characters of the Araceae s.l. (including the Lemnaceae). Major flavonoids of the family were C-glycosylflavones with the exception for subfamilies Gymnostachydoideae and Orontioideae. Other flavonoid classes, i.e. anthocyanins, flavones, flavonols, flavan and proanthocyanidins, were reported in all subfamilies. Flavanone and C-glycosylflavanone were isolated from Spirodela polyrhiza and Anthurium binotii, respectively. However, dihydroflavonol, chalcone, dihydrochalcone, aurone, and isoflavonoids were not reported in the Araceae. Although Araceae s.l. is a large family consisting of ca. 3645 species and ca. 144 genera, flavonoids were surveyed only in 146 species of 48 genera, as far as known.
{"title":"FLAVONOIDS IN THE SPECIES OF THE FAMILY ARACEAE: A REVIEW","authors":"T. Iwashina","doi":"10.14203/bkr.v23i1.1","DOIUrl":"https://doi.org/10.14203/bkr.v23i1.1","url":null,"abstract":"Flavonoids is one of the secondary metabolites and consists of two phenyl rings (A- and B-rings) connected by a three carbon bridge. Over 8000 kinds of flavonoids were reported from vascular plants and Bryophytes. This paper reviewed the flavonoid characters of the Araceae s.l. (including the Lemnaceae). Major flavonoids of the family were C-glycosylflavones with the exception for subfamilies Gymnostachydoideae and Orontioideae. Other flavonoid classes, i.e. anthocyanins, flavones, flavonols, flavan and proanthocyanidins, were reported in all subfamilies. Flavanone and C-glycosylflavanone were isolated from Spirodela polyrhiza and Anthurium binotii, respectively. However, dihydroflavonol, chalcone, dihydrochalcone, aurone, and isoflavonoids were not reported in the Araceae. Although Araceae s.l. is a large family consisting of ca. 3645 species and ca. 144 genera, flavonoids were surveyed only in 146 species of 48 genera, as far as known.","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128207716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Zuhri, D. Latifah, S. R. Ariati, Sudrajat Rahdiana, Emus, Cahyadi
Many botanic gardens have been contributing to the achievement of Target 8 of the Global Strategy for Plant Conservation (GSPC) through seed banking of wild species. Cibodas Botanic Garden (CBG) seed bank as a part of Kew's Millenium Seed Bank Partnership has also been collecting and banking the seeds of Indonesian native plant species. The study aimed to assess seed availability in nature and collect the available seeds in Selabintana Forest, Mt. Gede Pangrango National Park, West Java, to be stored in the long-term seed storage facility at CBG seed bank. Targeted species for the seed collection were focused on the native trees species with orthodox or approximately-orthodox seeds based on the Seed Information Database (SID) list. Pre-collection assessment and sampling of individuals within a population were using random sampling. Forty seed-producing plant species were reported. Due to the limitation number of seeds in the field (less than 250 seeds), only 33 species were Buletin Kebun Raya Vol.23 No. 1, April 2020 [36–45] | 37 collected. Six species were found with a large quantity of seeds, i.e. Begonia isoptera Dryand. ex Sm., Begonia sp., Ficus fistulosa Reinw. ex Blume, Pinanga javana Blume, Saurauia pendula Blume, and Symplocos sp. Most seeds were collected at 1,100–1,200 m asl, in the forest area, as a tree life form, and majority of the seeds were predicted as desiccation-tolerant (orthodox). Two species, i.e. P. javana and S. cauliflora DC., were listed in IUCN Red List as threatened species. Furthermore, this study demonstrated that high-quality seed collections are needed to ensure the long-term seed conservation.
许多植物园通过野生物种种子库为实现全球植物保护战略(GSPC)的目标8做出了贡献。Cibodas植物园(CBG)种子库作为邱园千年种子库合作伙伴关系的一部分，也一直在收集和储存印度尼西亚本土植物物种的种子。本研究旨在评估自然界种子的可用性，并收集西爪哇Gede Pangrango国家公园Selabintana森林的可用种子，储存在CBG种子库的长期种子储存设施中。根据种子信息数据库(seed Information Database, SID)列表，选择种子正统或近似正统的本地树种作为种子采集的目标树种。收集前评估和种群内个体抽样采用随机抽样。报道了40种制种植物。由于田间种子数量有限(不到250粒)，仅采集了33种[36-45][bbb37]。发现种子数量较多的6种，分别为海棠(Begonia isoptera Dryand)。Sm。，海棠属，无花果属。大多数种子采集于海拔1100 ~ 1200 m的森林地区，作为树的生命形式，大部分种子被预测为耐干燥(正统)。爪哇花和花椰菜两种。，被世界自然保护联盟列为濒危物种红色名录。此外，本研究还表明，为了保证种子的长期保存，需要高质量的种子采集。
{"title":"SEED AVAILABILITY ASSESSMENT AND SEED COLLECTION OF WILD PLANTS IN SELABINTANA FOREST, MOUNT GEDE PANGRANGO NATIONAL PARK, WEST JAVA","authors":"M. Zuhri, D. Latifah, S. R. Ariati, Sudrajat Rahdiana, Emus, Cahyadi","doi":"10.14203/bkr.v23i1.4","DOIUrl":"https://doi.org/10.14203/bkr.v23i1.4","url":null,"abstract":"Many botanic gardens have been contributing to the achievement of Target 8 of the Global Strategy for Plant Conservation (GSPC) through seed banking of wild species. Cibodas Botanic Garden (CBG) seed bank as a part of Kew's Millenium Seed Bank Partnership has also been collecting and banking the seeds of Indonesian native plant species. The study aimed to assess seed availability in nature and collect the available seeds in Selabintana Forest, Mt. Gede Pangrango National Park, West Java, to be stored in the long-term seed storage facility at CBG seed bank. Targeted species for the seed collection were focused on the native trees species with orthodox or approximately-orthodox seeds based on the Seed Information Database (SID) list. Pre-collection assessment and sampling of individuals within a population were using random sampling. Forty seed-producing plant species were reported. Due to the limitation number of seeds in the field (less than 250 seeds), only 33 species were Buletin Kebun Raya Vol.23 No. 1, April 2020 [36–45] | 37 collected. Six species were found with a large quantity of seeds, i.e. Begonia isoptera Dryand. ex Sm., Begonia sp., Ficus fistulosa Reinw. ex Blume, Pinanga javana Blume, Saurauia pendula Blume, and Symplocos sp. Most seeds were collected at 1,100–1,200 m asl, in the forest area, as a tree life form, and majority of the seeds were predicted as desiccation-tolerant (orthodox). Two species, i.e. P. javana and S. cauliflora DC., were listed in IUCN Red List as threatened species. Furthermore, this study demonstrated that high-quality seed collections are needed to ensure the long-term seed conservation.","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114532661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Heriyanto, Dolly Priatna, K. Kartawinata, I. Samsoedin
A study on structure and composition of old secondary forest (OSF), young secondary forest (YSF), and old scrub forest (OScF) in Rantau Bertuah Protected Area, Siak Regency, Riau Province, was conducted in September 2018. The purpose of this study was to analyze species composition and structure of forests.The research plot measuring 100 x 100 m (one ha) each was made at OSF, YSF, and OScF. The OSF plot held 33 families, 55 species, and 642 trees with a diameter of ? 10 cm; in YSF 31 families, 56 species, and 450 trees; and in OScF 28 families, 52 species, and 235 trees. At the tree level the OSF was dominated by Calophyllum macrocarpum, Shorea sp., and Gironniera nervosa; the YSF by Palaquium amboinense, Shorea macroptera, and Gironniera nervosa; and the OScF by Macaranga hypoleuca, Gironniera nervosa and Lithocarpus gracilis. Based on the main dominant species and full distribution in the plot, the forest is called the Gironniera nervosa-Lithocarpus gracilis association.
{"title":"STRUKTUR DAN KOMPOSISI HUTAN DI KAWASAN LINDUNG RANTAU BERTUAH, KABUPATEN SIAK, PROVINSI RIAU","authors":"N. Heriyanto, Dolly Priatna, K. Kartawinata, I. Samsoedin","doi":"10.14203/bkr.v23i1.7","DOIUrl":"https://doi.org/10.14203/bkr.v23i1.7","url":null,"abstract":"A study on structure and composition of old secondary forest (OSF), young secondary forest (YSF), and old scrub forest (OScF) in Rantau Bertuah Protected Area, Siak Regency, Riau Province, was conducted in September 2018. The purpose of this study was to analyze species composition and structure of forests.The research plot measuring 100 x 100 m (one ha) each was made at OSF, YSF, and OScF. The OSF plot held 33 families, 55 species, and 642 trees with a diameter of ? 10 cm; in YSF 31 families, 56 species, and 450 trees; and in OScF 28 families, 52 species, and 235 trees. At the tree level the OSF was dominated by Calophyllum macrocarpum, Shorea sp., and Gironniera nervosa; the YSF by Palaquium amboinense, Shorea macroptera, and Gironniera nervosa; and the OScF by Macaranga hypoleuca, Gironniera nervosa and Lithocarpus gracilis. Based on the main dominant species and full distribution in the plot, the forest is called the Gironniera nervosa-Lithocarpus gracilis association.","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126234906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dendrobium spectabile (Blume) Miq. is one of Papuan orchids that is of economic value and threatened. At present, the optimal protocol for asymbiotic seed germination and planlet development of D. spectabile is not yet available. This research aimed to develop an optimal and comprehensive protocol for in vitro culture of D. spectabile to support the conservation and reintroduction of this species. The experiment was conducted using a completely random design, including seed sowing, protocorm subculture (subculture 1), plantlet subculture (subculture 2), and plantlet acclimatization. The highest germination rate at 3 MAS (months after sowing) was found in modified Knudson's C (92.59%). The first subculture at 4 MAP (months after planting) showed that the highest leaf and root growths were found in modified Vacin and Went (4.12 and 2.13, respectively). The second subculture at 6 MAP showed that the highest leaf growth was found in full strength of Murashige and Skoog supplemented with 100 g/l banana homogenate (5.49), while the highest number of roots and average root extension were found in half strength of Vacin and Went supplemented with 100 g/l banana homogenate (7.05 and 0.47 cm, respectively). The plantlets were best acclimatized in media consisting of tree fern fibre and sphagnum moss (2:1).
{"title":"ASYMBIOTIC SEED GERMINATION AND PLANTLET DEVELOPMENT OF Dendrobium spectabile (Blume) Miq.","authors":"E. M. D. Rahayu, M. Mulyani","doi":"10.14203/bkr.v23i1.3","DOIUrl":"https://doi.org/10.14203/bkr.v23i1.3","url":null,"abstract":"Dendrobium spectabile (Blume) Miq. is one of Papuan orchids that is of economic value and threatened. At present, the optimal protocol for asymbiotic seed germination and planlet development of D. spectabile is not yet available. This research aimed to develop an optimal and comprehensive protocol for in vitro culture of D. spectabile to support the conservation and reintroduction of this species. The experiment was conducted using a completely random design, including seed sowing, protocorm subculture (subculture 1), plantlet subculture (subculture 2), and plantlet acclimatization. The highest germination rate at 3 MAS (months after sowing) was found in modified Knudson's C (92.59%). The first subculture at 4 MAP (months after planting) showed that the highest leaf and root growths were found in modified Vacin and Went (4.12 and 2.13, respectively). The second subculture at 6 MAP showed that the highest leaf growth was found in full strength of Murashige and Skoog supplemented with 100 g/l banana homogenate (5.49), while the highest number of roots and average root extension were found in half strength of Vacin and Went supplemented with 100 g/l banana homogenate (7.05 and 0.47 cm, respectively). The plantlets were best acclimatized in media consisting of tree fern fibre and sphagnum moss (2:1).","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134350013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bengkalis Island is one of the islands in Riau Province which produced most rambai (Baccaurea motleyana Müll.Arg.) in the province where the plant has been used as fruit and medicinal plants. None of research has been conducted on the diversity of rambai from Bengkalis Island. The purpose of this study was to identify the diversity of B. motleyana in Bengkalis Island based on morphological characters. Exploration method was used in two sub-districts namely Bantan and Bengkalis. Observation included 37 morphological characters of 50 individuals. Data were analyzed using NTSYSpc2.02 and Minitab 16. The result showed that the generated dendrogram was divided into two main groups, with coefficient similarity values ??ranged from 41–78%. Pearson correlation analysis found that 16 characters had high correlation value. This study provided important information on diagnostic morphological characters and taxonomic groupings of B. motleyana which would be useful as a basis for further research and development.
Bengkalis岛是廖内省出产兰白(Baccaurea motleyana m ll. arg .)最多的岛屿之一，该植物已被用作水果和药用植物。没有一项研究是针对孟加拉岛兰白的多样性进行的。本研究的目的是在形态特征的基础上鉴定Bengkalis岛B. motleyana的多样性。在班坦和Bengkalis两个分区采用了勘探方法。观察了50个个体的37个形态特征。使用NTSYSpc2.02和Minitab 16对数据进行分析。结果表明，生成的树状图可分为两大类，相似系数为??范围从41-78%。Pearson相关分析发现有16个性状具有高相关值。本研究为该植物的诊断形态学特征和分类类群提供了重要信息，为进一步研究和开发提供了依据。
{"title":"KEANEKARAGAMAN RAMBAI (Baccaurea motleyana (Müll.Arg.) Müll.Arg.) DI PULAU BENGKALIS BERDASARKAN KARAKTER MORFOLOGI","authors":"Putri Ramayani, Fitmawati","doi":"10.14203/bkr.v23i1.5","DOIUrl":"https://doi.org/10.14203/bkr.v23i1.5","url":null,"abstract":"Bengkalis Island is one of the islands in Riau Province which produced most rambai (Baccaurea motleyana Müll.Arg.) in the province where the plant has been used as fruit and medicinal plants. None of research has been conducted on the diversity of rambai from Bengkalis Island. The purpose of this study was to identify the diversity of B. motleyana in Bengkalis Island based on morphological characters. Exploration method was used in two sub-districts namely Bantan and Bengkalis. Observation included 37 morphological characters of 50 individuals. Data were analyzed using NTSYSpc2.02 and Minitab 16. The result showed that the generated dendrogram was divided into two main groups, with coefficient similarity values ??ranged from 41–78%. Pearson correlation analysis found that 16 characters had high correlation value. This study provided important information on diagnostic morphological characters and taxonomic groupings of B. motleyana which would be useful as a basis for further research and development.","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126446139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Begonia bimaensis Undaharta & Ardaka is a potential ornamental plant, and currently known only from one population in Sumbawa. Propagation programs, both conventional and in vitro culture are necessary to ensure its conservation. The aim of this research is to observe the effects of explant types and plant growth regulator combination (2,4-D and kinetin) in inducing callus from B. bimaensis leaf in vitro. Callus induction was initiated from three parts of leaf explant, namely petiole, leaf base, and leaf lamina. The explants were planted on Murashige & Skoog (MS) medium with addition of 2,4-D and kinetin. Concentrations of 2,4-D were 0, 0.5, and 1 ppm, while kinetin concentrations were 0, 1, and 2 ppm. Each treatment was replicated 10 times. Results showed that leaf base was the best explant used for callus induction. Medium D1K2 (MS + 1 ppm kinetin) showed the fastest time for callus induction that was at 20 days after planting. The highest percentage of callus production (100%) was found on D1K3 (MS + 2ppm kinetin); D2K2 (MS + 0.5ppm 2,4-D + 1 ppm kinetin); D2K3 (MS + 0.5ppm 2,4-D + 2ppm kinetin) and D3K2 (MS + 1ppm 2,4-D + 1ppm kinetin).
{"title":"PENGARUH JENIS EKSPLAN DAN KOMBINASI ZAT PENGATUR TUMBUH (ZPT) TERHADAP INDUKSI KALUS Begonia bimaensis Undaharta & Ardaka SECARA IN VITRO","authors":"Ema Hendriyani, Tri Warseno, N. K. E. Undaharta","doi":"10.14203/bkr.v23i1.8","DOIUrl":"https://doi.org/10.14203/bkr.v23i1.8","url":null,"abstract":"Begonia bimaensis Undaharta & Ardaka is a potential ornamental plant, and currently known only from one population in Sumbawa. Propagation programs, both conventional and in vitro culture are necessary to ensure its conservation. The aim of this research is to observe the effects of explant types and plant growth regulator combination (2,4-D and kinetin) in inducing callus from B. bimaensis leaf in vitro. Callus induction was initiated from three parts of leaf explant, namely petiole, leaf base, and leaf lamina. The explants were planted on Murashige & Skoog (MS) medium with addition of 2,4-D and kinetin. Concentrations of 2,4-D were 0, 0.5, and 1 ppm, while kinetin concentrations were 0, 1, and 2 ppm. Each treatment was replicated 10 times. Results showed that leaf base was the best explant used for callus induction. Medium D1K2 (MS + 1 ppm kinetin) showed the fastest time for callus induction that was at 20 days after planting. The highest percentage of callus production (100%) was found on D1K3 (MS + 2ppm kinetin); D2K2 (MS + 0.5ppm 2,4-D + 1 ppm kinetin); D2K3 (MS + 0.5ppm 2,4-D + 2ppm kinetin) and D3K2 (MS + 1ppm 2,4-D + 1ppm kinetin).","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"242 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114275545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tri Warseno, R. Iryadi, Dyan Meiningsasi Siswoyo Putri
Epiphytic Rhododendrons is an important component in an ecosystem, but there is not much information and studies related to its ecology. This research aims to inventory and study the distribution and distribution patterns of Rhododendron populations that grow naturally in Eka Karya Botanic Gardens Bali (KREK). Random sampling method was employed to census the host trees especially old ones (more than 20 years) that overgrown with Rhododendrons. The results showed that there is one species of epiphytic Rhododendron identified in the KREK, namely Rhododendron javanicum. It is found typically in thin substrate thickness with moderate light intensity, mostly in zone III and IV. There were five host species, namely Bischofia javanica Blume, Dacrycarpus imbricatus (Blume) de Laub., Glochidion rubrum Blume, Prunus sp., and Syzygium polyanthum (Wight) Walp. with a total number of 31 trees. The results of this study would provide considerations for KREK managers to conserve, develop and utilize policies of epiphytic Rhododendron species.
附生杜鹃花是生态系统的重要组成部分，但目前关于附生杜鹃花生态学的研究较少。本研究旨在调查和研究巴厘岛Eka Karya植物园(KREK)自然生长的杜鹃花种群的分布和分布模式。采用随机抽样的方法对寄主树进行普查，特别是20年以上的杜鹃花丛生的老树。结果表明，在KREK中鉴定出附生杜鹃花(Rhododendron javanicum)一种。寄主主要生长在基质厚度较薄、光照强度适中的区域，主要分布在III区和IV区。寄主有5种，分别是Bischofia javanica Blume、Dacrycarpus imbricatus (Blume) de Laub。杨桃属，杨桃属，杨桃属，白杨属。总共有31棵树。研究结果可为该区附生杜鹃花的保护、开发和利用政策提供参考。
{"title":"INVENTARISASI, DISTRIBUSI, DAN POLA PENYEBARAN Rhododendron EPIFIT DI KEBUN RAYA EKA KARYA BALI","authors":"Tri Warseno, R. Iryadi, Dyan Meiningsasi Siswoyo Putri","doi":"10.14203/bkr.v23i1.6","DOIUrl":"https://doi.org/10.14203/bkr.v23i1.6","url":null,"abstract":"Epiphytic Rhododendrons is an important component in an ecosystem, but there is not much information and studies related to its ecology. This research aims to inventory and study the distribution and distribution patterns of Rhododendron populations that grow naturally in Eka Karya Botanic Gardens Bali (KREK). Random sampling method was employed to census the host trees especially old ones (more than 20 years) that overgrown with Rhododendrons. The results showed that there is one species of epiphytic Rhododendron identified in the KREK, namely Rhododendron javanicum. It is found typically in thin substrate thickness with moderate light intensity, mostly in zone III and IV. There were five host species, namely Bischofia javanica Blume, Dacrycarpus imbricatus (Blume) de Laub., Glochidion rubrum Blume, Prunus sp., and Syzygium polyanthum (Wight) Walp. with a total number of 31 trees. The results of this study would provide considerations for KREK managers to conserve, develop and utilize policies of epiphytic Rhododendron species.","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127469860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. T. Hadiah, Yuzammi Yuzammi, Danang Wahyu Purnomo
Pasak bumi ( Eurycoma longifolia Jack) is an Indonesian native plant species and widely used for its medicinal properties from generation to generation. The demand for this medicinal plant is increasing, both nationwide and worldwide. In contrary to the increasing demands, there are no plantations or such efforts to cultivate this plant to meet commercial needs. Thus, people fulfil the demands by harvesting the plants from its natural habitats in forests. In addition to this lack, there have been forest conversions into other uses such as mining, oil palm plantations and other uses. All those facts result in the decrease of pasak bumi population in the wild, and become the threats for the existence of this species. This study aims to observe the habitat and population of Eurycoma longifolia Jack in its natural habitat at the western block of the conservation forest of PT Sabhantara Rawi Sentosa in Kutai Timur, East Kalimantan. The study applied a transect survey method, comprising five transect lines, each transect contains 10 plots. The results showed that wild population of E. longifolia on the research site was very low. Only one seedling of E. longifolia found in the observation plots, however there were several individuals growing outside the observation plots. Heavy exploitation of the plant and forest conversion into other uses caused the population decrease. Researches to provide bases for commercial plantation of the E. longifolia are strongly recommended to ensure the existence of the species.
{"title":"KAJIAN HABITAT DAN POPULASI PASAK BUMI (Eurycoma longifolia Jack) DI BLOK BARAT KAWASAN HUTAN KONSERVASI PT SABHANTARA RAWI SENTOSA, KUTAI TIMUR, KALIMANTAN TIMUR","authors":"J. T. Hadiah, Yuzammi Yuzammi, Danang Wahyu Purnomo","doi":"10.14203/BKR.V22I1.451","DOIUrl":"https://doi.org/10.14203/BKR.V22I1.451","url":null,"abstract":"Pasak bumi ( Eurycoma longifolia Jack) is an Indonesian native plant species and widely used for its medicinal properties from generation to generation. The demand for this medicinal plant is increasing, both nationwide and worldwide. In contrary to the increasing demands, there are no plantations or such efforts to cultivate this plant to meet commercial needs. Thus, people fulfil the demands by harvesting the plants from its natural habitats in forests. In addition to this lack, there have been forest conversions into other uses such as mining, oil palm plantations and other uses. All those facts result in the decrease of pasak bumi population in the wild, and become the threats for the existence of this species. This study aims to observe the habitat and population of Eurycoma longifolia Jack in its natural habitat at the western block of the conservation forest of PT Sabhantara Rawi Sentosa in Kutai Timur, East Kalimantan. The study applied a transect survey method, comprising five transect lines, each transect contains 10 plots. The results showed that wild population of E. longifolia on the research site was very low. Only one seedling of E. longifolia found in the observation plots, however there were several individuals growing outside the observation plots. Heavy exploitation of the plant and forest conversion into other uses caused the population decrease. Researches to provide bases for commercial plantation of the E. longifolia are strongly recommended to ensure the existence of the species.","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132975968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Increasing genetic variation in plants can be done by irradiation technique. The purpose of this study was to improve genetic variation in Dendrobium macrophyllum and D. undulatum orchids by gamma irradiation to obtain superior seeds. Accute Irradiation treatment was perfomed using orchid protocorms. Irradiation doses given: 0, 10, 20, and 25 Gy. The observed parameters were the number of explants, shoots, dead shoots, and leaves at five months after treatment (MAT) and number of roots in seven MAT. Calculation of Lethal Dosage (LD) 20 and 50 was carried out on three MAT. The results of Curve Expert analysis showed that different levels of radiosensitivity in D. macrophyllum were more sensitive than D. undulatum . D. macrophyllum showed LD 20 at an irradiation dose of 13,98 Gy, LD 50 at an irradiation dose 48,42 Gy, while D. undulatum experienced LD 20 at an irradiation dose of 195,67 Gy, LD 50 at an irradiation dose of 490,67 Gy. Acute irradiation effects were seen in protocorm D. macrophyllum at seven MAT in the presence of inhibition at 10 Gy irradiation doses, which was a decrease in the number of shoot of 2,66, decrease in leaf number 18,84 and decrease in root number 5,17 compared to control
{"title":"IRADIASI AKUT DENGAN SINAR GAMMA PADA PROTOKORM ANGGREK Dendrobium macrophyllum A. Richard DAN Dendrobium undulatum M. A. Clem & D. L. Jones","authors":"Elizabeth Handini","doi":"10.14203/BKR.V22I1.464","DOIUrl":"https://doi.org/10.14203/BKR.V22I1.464","url":null,"abstract":"Increasing genetic variation in plants can be done by irradiation technique. The purpose of this study was to improve genetic variation in Dendrobium macrophyllum and D. undulatum orchids by gamma irradiation to obtain superior seeds. Accute Irradiation treatment was perfomed using orchid protocorms. Irradiation doses given: 0, 10, 20, and 25 Gy. The observed parameters were the number of explants, shoots, dead shoots, and leaves at five months after treatment (MAT) and number of roots in seven MAT. Calculation of Lethal Dosage (LD) 20 and 50 was carried out on three MAT. The results of Curve Expert analysis showed that different levels of radiosensitivity in D. macrophyllum were more sensitive than D. undulatum . D. macrophyllum showed LD 20 at an irradiation dose of 13,98 Gy, LD 50 at an irradiation dose 48,42 Gy, while D. undulatum experienced LD 20 at an irradiation dose of 195,67 Gy, LD 50 at an irradiation dose of 490,67 Gy. Acute irradiation effects were seen in protocorm D. macrophyllum at seven MAT in the presence of inhibition at 10 Gy irradiation doses, which was a decrease in the number of shoot of 2,66, decrease in leaf number 18,84 and decrease in root number 5,17 compared to control","PeriodicalId":274763,"journal":{"name":"Buletin Kebun Raya","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116928437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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