Eka Karya Research Articles

Pest-potential organisms on Begoniaceae collection of Eka Karya Bali Botanic Garden

Begonia thrives in shady plantations but can tolerate more sun if the soil moisture is maintained. Therefore, the collection of begonia in Eka Karya Bali Botanic Gardens (BBG) is planted in a greenhouse. This increases the potential damage due to pest attacks. The purpose of this study was to identify the pest-potential organisms on begonia. The research was carried out in April–June 2019 at Begonia Park of BBG using survey methods to identify potential organisms and their damage symptoms. We found three species of insects that attack begonia collection, i.e. Spodoptera litura (Lepidoptera: Noctuidae), Aleurodicus destructor and Bemisia tabaci (Hemiptera: Aleyrodidae), and two species of Gastropods namely Parmarion martensi (Gastropoda: Ariophantidae) and Bradybaena similaris (Gastropoda: Bradybaenidae). This result could be utilized as a reference to determine the pest-controlling technique on Begoniaceae.

Spores Morphological Characteristics of Several Ophioglossaceae and Psilotaceae Fern in "Eka Karya" Botanical Garden - Bali

Ferns of Ophioglossaceae and Psilotaceae families can be found in the "Eka Karya" Botanical Garden, Bali as a collection or naturally growing in the botanical garden and those families are taxonomically classified as primitive ferns. The morphological characteristics of the family of Ophioglossaceae and Psilotaceae or even other types of ferns can be known through the morphological characteristics of the spores. This study aimed to characterize the spore morphology of the Ophioglossaceae and Psilotaceae fern of The "Eka Karya" Botanical Garden. Observation of the morphological characteristics of spores in the "Eka Karya" Botanical Garden was carried out by a simple method without acetolysis. The result of six types of fern plants from the family of Ophioglossaceae and Psilotaceae showed similarities to the spore unit, monads. Each family has unique characteristics that can be used to differentiate each other. The family Ophioglossaceae has a variety of spore colors, trilete spore types, mostly globose-shaped (except for one species the trilobate), the average polar diameter is 28.59±2.19 – 31.00±2.49 μm and the equatorial diameter is 32.85±1.74 – 37.55± 1.71 μm, the P/E ratio is 0.79-0.87, the shape based on the P/E ratio is suboblate, the spore size category is medium and has radial symmetry. For the family Psilotaceae, has a pale yellow-green spore color, monolete type, elongate-ellipsoidal shape, average polar diameter of 26.20±2.76 –29.81±2.96 μm and equatorial diameter of 52.98±2.55 – 63.31±4.65 μm, P/E ratio of 0.47-0.49, shape based on P/E ratio i.e. peroblate, large spore size category and has bilateral symmetry. Those characteristics are valuable taxonomic data that can be used as diagnostic characters for the identification of the families Ophioglossaceae and Psilotaceae.

Creation of ten new variety of Begonia through interspecific Hybridization: A Study from Bali Botanic Garden’s Collection

Begonia is one of the plant genera and very popular as an ornamental plant. Bali Botanic Garden has collected and conserved at least 90 species and 241 exotic Begonia. As an ornamental plant, Begonia has unique, special and beautiful characteristic in its leaf, flower and plant features. Interspecific hybridization is commonly used to improve the morphological character of Begonia. The purpose of this study is to define new variety of Begonia from the interspecific hybridization of Bali Botanic Garden Begonia’s collection. From 2014 until 2022, ten new varieties of Begonia obtained from several species: B. acetosa, B. caravan, B. cuculata white, B. fenicis, B. fimbriata red, B. goegoensis, B. incarnate, B. listada, B. longifolia, B. semperflorens, B. silver queen, B. sizemorae, B. sudjanae, B. tuberosa and B. variepeltata. The new variety are: Begonia “Tuti Siregar”, Begonia “Longisilver”, Begonia “Longigreen”, Begonia “Sizequeen”, Begonia “Bedugul”, Begonia “Eka Karya”, Begonia “Vena Red”, Begonia “Ardaka”, Begonia “Lugrayasa” and Begonia “SuGo”. Out of the ten new varieties, eight varieties have been registered with the Center of Plant Variety Protection and two have already granted Plant Protection Variety Right.

Preface: The International Conference and Workshop in conjunction with the 8th Indonesia Biotechnology Conference (IBC)

The International Conference and Workshop in conjunction with the 8th Indonesia Biotechnology Conference (IBC), which was the first hybrid event held by the Indonesian Biotechnology Consortium, Universitas Nasional (UNAS), in collaboration with National Research and Innovation Agency of Indonesia (BRIN) and Rutgers – The State University of New Jersey USA was held on 16-18 May 2023 at the Prime Plaza Hotel Sanur Bali. The conference is dedicated to providing a forum to build network, exchange ideas about bioscience and biotechnology for addressing the challenges in sustainable developments, especially in Bali – Indonesia, as well as to inspire young academics, scientists and students who are interested in biotechnology (including the new omics technology), biosciences and bioengineering and integrated approaches, and encourage ideas dissemination in these fields.The joint conference’s theme was “Crossroad of Biodiversity, Biotechnology and Health for Enhancing Sustainable Development” to embrace broader ideas and inputs from academics, practitioners from various scientific backgrounds including economics, engineering, politics, culture, social and humanities sciences, as well as to encourage participation and inputs from policy makers in government bodies who are expected to be able to produce integrated solutions to the current biodiversity challenges. Besides, this conference was a stepping stone to integrate some approaches from various disciplines and also an opportunity to build network and joint research between institutions for biodiversity conservation as an asset for developing sciences and supporting sustainable development.The objectives of the conference were: 1) to bring together participants, experts and stakeholders to examine ideas and solutions for maintaining, caring and protecting biodiversity for future sustainable development for human beings, especially in Indonesia, 2) to integrate ideas and inputs from academics from various discipline background to achieve prosperous sustainable biodiversity, 3) to provide a chance of networking between academics and practitioners dealing with biodiversity, 4) to exchange research results on sustainable use as well as conservation of biodiversity, 5) to increase capacity building of young researchers in exploring biodiversity for human health and wellness, and 6) to broaden networking of the participants and to produce a joint research.The benefit of this conference was creating synergy between national and international academics and institutions with various discipline backgrounds, government bodies, and stakeholders dealing with biodiversity for supporting sustainable development and future community prosperity. The conference and workshop are also a premier interdisciplinary forum for life scientists, engineers, and practitioners to present their latest research results, ideas, developments, and applications in relevant areas.The joint conference was attended by academics, researchers and practitioners within broad areas of science and technology such as agriculture, forestry, biotechnology and environment, medicine, biology, veterinary, and social sciences. The presented materials have undergone peer review processes and only qualified papers were selected. Furthermore, all papers were subjected to double-blind peer-review and expected to meet the scientific criteria of significance and academic excellence in IOP Proceeding Conference Series.This two-day conference on 16-17 May 2023 featured research presentations and was closed with discussions with experts and participants to sum up the common conclusion. This occasion was followed by a field visit to Eka Karya Botanic Garden in Bedugul Bali and a workshop for selected participants on 18 May 2023. The first day of the conference consisted of three keynote speakers’ around 25 minutes presentations and three plenary sessions by invited speakers. The second day was organized for a plenary session and parallel sessions which were divided into five topics: (a) Biodiversity for agriculture and health, (b) Biodiversity for environment and tourism, (c) Biodiversity and traditional knowledge and socio -cultural aspects, (d) Biotechnology and biodiversity use, (e) Advanced biotechnology and human health. The invited speakers in the plenary session have a presentation for 30 minutes. The keynote and invited speakers are listed below:List of Keynote speakers, Invited speakers, List of committees are available in this Pdf.

Antioxidant activity of kecombrang flower (Etlingera elatior) methanol extract and identification of its compounds using LC-MS/MS

Introduction: The Kecombrang plant (Etlingera elatior) is a plant that has natural antioxidant potential. The antioxidant activity of a plant depends on the amount of active compound extracted and the extraction method. This study aimed to determine the active compound with LC-MS/MS. Methods: Vacum rotary evaporator, UV-Vis Shimadzu spectrophotometer, set of tools LCMS/MS ACQUITY UPLC®H-Class System (waters, USA). Kecombrang flowers (Etlingera elatior) were obtained from the Soka traditional village, Tabanan and determined at the LIPI-UPT Center for Plant Conservation of the Bali "Eka Karya" Botanical Garden” Bali. Results: Kecombrang flowers (Etlingera elatior) reported that the higher the methanol concentration, the higher the total flavonoids and antioxidants level. Antioxidants were carried out to determine the capacity of the active compounds in the extract to scavenge free radicals. Based on the IC50 value obtained, the methanol extract of kecombrang flowers with a concentration of 99% had the highest antioxidant activity with an IC50 value of 86.59 mg/L and was classified as a strong antioxidant. Kecombrang flowers macerated with 70% methanol and 50% methanol had moderate antioxidant activity, as indicated by the IC50 values ​​of 100.32 mg/L and 123.91 mg/L, respectively. Conclusion: Antioxidant activity test of kecombrang flowers (Etlingera elatior) methanol extract with concentration variation 99%,70%, and 50% the best antioxidant value 99 % low concentration solvent has a high boiling point, so that it evaporates slowly, resulting in a higher extract yield.

Identification and characterization of pathogens causing diseases on Begonia at Eka Karya Bali Botanic Garden

Begonia is one of the world's largest genera of flowering plants that spread in various tropical and subtropical regions worldwide. However, deforestation, overexploitation, climate change, and pathogen-causing diseases have threatened the diversity of begonia. Diseases on begonia need to be handled seriously because the level of spread and damage can result in the death of the plant. Thus, this study was conducted to identify the main pathogens causing diseases in the begonia which is expected to be basic information in determining the effective control treatment. As a result, begonia collections of Eka Karya Bali Botanic Garden were mainly infected by three pathogenic fungi (Fusarium spp., Oidium begoniae, and Botrytis cinerea) and one bacterium (Xanthomonas begoniae).

PENGARUH KOMPENSASI DAN DISIPLIN KERJA TERHADAP KINERJA KARYAWAN DI BALAI KONSERVASI TUMBUHAN KEBUN RAYA EKA KARYA BALI

An organization manage HR with disciplined attitudes and behavior. Employee discipline can have a strong impact on an organization to achieve success. This study aims to determine the effect of compensation and work discipline partially on employee performance at the "Eka Karya" Botanical Garden Plant Conservation Center in Bali, which in one year in 2018 showed that there were employee delays above 47.10%. Therefore, the authors conducted a study by testing the hypothesis about how much influence compensation and work discipline had on employee performance at the Bali Botanic Garden. The approach of this research is quantitative research. So, to answer this hypothesis, it is done by taking a sample of 99 respondents. Data were tested using validity, reliability and classical assumptions and analyzed by multiple linear regression, T test, and F test. Based on the results of the analysis, a conclusion can be drawn as follows: Compensation (X1) has a positive and significant effect on performance (Y) at the Botanical Gardens Conservation Center "Eka Karya" Bali. The amount of regression coefficient b1X1 which is positive is 0.356. This test is supported by a statistical test t (t - test) which states that t count is greater than t table, which means H1 is accepted. Work discipline (X2) has a positive and significant effect on performance (Y) in the Botanical Gardens Conservation Center "Eka Karya" Bali. This can be seen from the regression coefficient b2X2 which is positive at 0.218. This test is supported by a statistical test t (t-test) which states that t count is greater than t table, which means H2 is accepted. Simultaneously compensation (X1) and work discipline (X2) have a positive and significant effect on performance (Y) in the Botanical Gardens Conservation Center "Eka Karya" Bali. This is evidenced through multiple regression analysis Y = 20,556 + 0,356X1 + 0,218X2. In addition, it is confirmed by the F (F-test) test where F count is greater than F table, which means Ho is rejected and H3 is accepted. Compensation is the dominant variable that influences performance in the Botanical Gardens Conservation Center "Eka Karya" Bali with a standarized beta coefficient of 0.553.

PENGARUH KUALITAS PELAYANAN DAN FASILITAS TERHADAP KEPUASAN WISATAWAN NUSANTARA DI DAYA TARIK WISATA KEBUN RAYA “EKA KARYA” BALI

This study aims to determine the effect of service quality and facilities on the satisfaction of domestic tourists in the tourist attraction of the "Eka Karya" Botanical Gardens in Bali. The sampling technique in this study was taken by accidental sampling with a sample size of 100 respondents, the respondents of this research were tourists who were visiting or had visited the tourist attraction of the "Eka Karya" Botanical Gardens in Bali. Meanwhile, this research is quantitative in nature by using the method of multiple linear regression analysis as a data analysis technique. In this study using data collection techniques, namely library research, interviews, observations and distributing questionnaires to obtain data. The results of the multiple linear regression analysis based on the delta test of the coefficient of determination resulted in an R Square of 0.709, meaning that 70.9% of tourist satisfaction can be explained by the variables of service quality and facilities. While 29.1% of tourist satisfaction is influenced by other variables that are not included in this research model. This means that the quality of services and facilities affects the satisfaction of tourists visiting the tourist attraction of the Bali "Eka Karya" Botanical Gardens, the better the quality of services and facilities, the higher the level of satisfaction of visiting tourists.
 

In vitro Antimicrobial and Antioxidant Activity of Meliaceae Plants Collection of Eka Karya Bali Botanic Garden


 
 
 Meliaceae are popularly used to produce terpenoid and limonoid compounds. These compounds have the potential as antioxidants, antimicrobials, insecticides, antipyretics, and anthelmintics. This research aims to determine the antioxidant and antimicrobial activity of Meliaceae leaves extract of Eka Karya Bali Botanic Garden plants collection. The dried leaves of 15 species of Meliaceae were extracted by methanol. In vitro antimicrobial tests were carried out on agar media inoculated by selected microbe. On the other hand, the antioxidant activity was assayed by 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging. As a result, Aphanamixis polystachya against Aspergillus niger (35.21 mm) and Cladosporium sp. (46.21), Toona hexandra against Fusarium solani (37.31 mm), Dysoxylum cauliflorum against Candida albicans (38.19 mm), Chisocheton pentandrus against Salmonella typhimurium (39.53 mm), Sandoricum koetjape against Staphylococcus aureus (50.07 mm), and Toona hexandra against Streptococcus nutans (42.25 mm) exhibited the strongest inhibitory effect. Furthermore, the antioxidant screening showed that Cipadessa baccifera, C. pentandrus, and Sandoricum koetjape exhibited strong antioxidant activity, while T. ciliata showed a very strong antioxidant activity with IC50 33.64 μg/mL. This study reveals an initial screening of the potential of various types of Meliaceae as a source of antioxidants and antibacterials. Furthermore, this information can be used as a new alternative for pharmaceutical companies and the industrial sector in the development of new products.
 
 

Abundance of invasive alien species of teklan (Ageratina riparia (Regel) R. M. King & H. Rob.: Asteraceae) on floor vegetation in “Eka Karya” Botanical Garden, Bali

Ageratina riparia is an invasive alien species that get a particular attention in “Eka Karya” Bali Botanical Garden. This study aims to determine the abundance of invasive alien species A. riparia on forest floor vegetation in “Eka Karya” Bali Botanical Garden, and the factors that influence its abundance. Ageratina riparia is an invasive herb that can disrupt the balance of the ecosystem. The advantages of this plant in reproducing and adapting to the environment, make this plant very easy to grow and develop in a habitat. The purposive sampling method was used with the plot that placed systematically. The research area divided into five research stations with 10 plots (2 x 2 m) for each station. Vegetation data were analyzed to determine the density, relative density, frequency, relative frequency, and important value index (INP), then completed with Shannon-Weiner diversity index (H'), dominancy index (C), evenness index (E) and visualization abundance of species A. riparia of with Non-metric Multi Dimensional Scaling (NMDS). Environmental data is calculated analyses in Detrended Correspondence Analysis (DCA). The results showed that A. riparia at station 1 (Kawasan Kepala Burung) had an INP of 62.50%, station 2 (Taman Usada) with an INP of 52.40%, station 3 (Taman Cyathea) with an INP of 89.09%, station 4 (middle open area) with an INP of 110.25%, and the highest is at station 5 (Taman Upacara Panca Yadnya) with an INP value of 118.92%. The presence of A. riparia can be influenced by all environmental factors measured such as air humidity, soil moisture, soil pH, air temperature and soil temperature, altitude, land slope, and light intensity.

Anti Fungi Potential of Psidium cattleianum afzel ex Sabin extraction as an inhibitor of fungi Fusarium solani

The use of fungicides plays an important role in controlling plant diseases caused by Fusarium. However, the development of environment friendly fungicides is considered more effective, which used the plant secondary metabolites. This study aims to find the latest alternative fungicides using Psidium Cattleianum Afzel plant extract, ex Sabine from the collection of the "Eka Karya" LIPI-Bali Botanical Garden, which can inhibit the growth of F. solani and to find the minimum dose of the plant extract in inhibiting growth of F. solani. The method used was early screening of plant and fungi, medium preparation for fusarium and minimum dose analyze. This study found that based on 19 plants tested, Psidium cattleianum proved effective in inhibiting the F. solani.  Further testing of psidium plants was carried out by looking at the minimum dose of inhibition against fusarium. The inhibition zone contained in the 1% treatment was greater than the concentrations of 0.75%, 0.50% and 0.25%. The research was continued at a concentration reduction of 0.20-0.005% with the results showing that a concentration of 0.20% to a concentration of 0.05% resulted in a moderate inhibition zone of 8 mm to 9.2 mm. Therefore, it can be concluded that the concentration of 1% is the concentration with the minimum dose of Psidium cattleianum in inhibiting the growth of the fungus Fusarium solani.

The Diversity, Distribution and Conservation of Bali’s Medinilla in Eka Karya Bali Botanical Garden

Medinilla is a tropical forest plant that has potential as an ornamental and medicinal plant. The diversity of medinilla in Bali is poorly studied. This study aims to determine the diversity, distribution and conservation activities of Bali’s medinilla at the Eka Karya Bali Botanical Garden. An observational study, documentation and literature were used in this research. Based on this research, it is known that there are six species of medinilla in Bali such as Medinilla crassifolia (Reinw.ex Blume) Blume, Medinilla alpestris Blume, Medinilla laurifolia (Blume) Blume, Medinilla radicans (Blume) Blume, Medinilla speciosa (Reinw.ex Blume) Blume and Medinilla quadrifolia (BI.) Bakh. F. M. quadrifolia is a new distribution record for Bali. All species were discovered in the districts of Buleleng, Bangli, Gianyar, Jembrana, Karangasem and Tabanan districts. Only four species have been conserved in the Bali Botanical Gardens, according to data from the Eka Karya Bali Botanical Gardens' collection, therefore exploration and collection activities are critical. Conservation activities carried out at Eka Karya Bali Botanical Garden are collecting and data collection, maintaining and propagating species of medinilla.

The Diversity, Distribution and Conservation of Bali’s Medinilla in Eka Karya Bali Botanical Garden

Medinilla is a tropical forest plant that has potential as an ornamental and medicinal plant. The diversity of Medinilla in Bali is poorly studied. This study aims to determine the diversity, distribution and conservation activities of Bali’s Medinilla at the Eka Karya Bali Botanical Garden. The research method used are literature study, search for data collection and exploration, amd herbarium observations. Based on this research, it is known that there are six species of Medinilla in Bali such as Medinilla crassifolia (Reinw.ex Blume) Blume, Medinilla alpestris Blume, Medinilla laurifolia (Blume) Blume, Medinilla radicans (Blume) Blume, Medinilla speciosa (Reinw.ex Blume) Blume and Medinilla quadrifolia (BI.) Bakh. F. M. quadrifolia is a new distribution record for Bali. All species were discovered in the districts of Buleleng, Bangli, Gianyar, Jembrana, Karangasem and Tabanan districts. Only four species have been conserved in the Bali Botanical Gardens, according to data from the Eka Karya Bali Botanical Gardens' collection, therefore exploration and collection activities are critical. Conservation activities carried out at Eka Karya Bali Botanical Garden are collecting and data collection, maintaining and propagating species of Medinilla.

Pengaruh Keadilan Organisasi Dan Leader Member Exchange Terhadap Komitmen Organisasi Pada PT. Eka Karya Graha Flora Sukabumi

The purpose of this study was to determine the effect of organizational justice and leader member exchange (LMX) on organizational commitment at PT. Eka Karya Graha Flora Sukabumi. This study uses descriptive and associative methods using saturated sampling technique for sampling by distributing questionnaires to 88 employees of PT. Eka Karya Graha Flora Sukabumi. The data analysis technique used is validity test, reliability test, multiple linear regression analysis including multiple correlation coefficient test, coefficient of determination test, and hypothesis testing t test and f test. The results of this study indicate that organizational justice on organizational commitment has a significant influence and leader member exchange on organizational commitment also has a significant influence. And the results of the influence of organizational justice and leader member exchange have a positive and significant influence on organizational commitment.
 
 Keywords: Organizational Justice; Leader Member Exchange; Organizational Commitment

Pemetaan Kualitas Visual Lanskap Pada Daya Tarik Wisata Di Kebun Raya Eka Karya Bedugul

The visual landscape quality mapping of tourist attraction in Eka Karya Bedugul Botanical Garden. Eka Karya Bedugul Botanical Garden is a national and international reference to the ex-situ conservation of tropical mountain plant and botanical aspect service, environmental education, horticulture, landscape and tourisms. In order to provide tourism services, actual activities such as conserving and improving the quality of view are needed. The beauty of landscape view is not only determined by enviromental characteristic and landscape wealth, but it also is determined through the assessment of people from their perception over a landscape. The research aimed to map the visual quality landscape in Eka Karya Bedugul Botanical Garden and determine the best criteria of visual quality on natural landscape. The research methods used were surverys and visual assesments which include data collecting step, beauty assesment with scenic beauty estimation (SBE), and descriptive analysis about the determinant factor of visual quality on natural landscape. The beauty of the visual quality over the natural landscape was shown through the harmonic combination of landscape form elements. The visual quality over the natural landscape used were the unity of resources, well maintained natural landscape, and giving a lively effect resulted through the use of combining landscape form elements and design. There were seven landscape points that fall under the best visual quality landscape category, which were landscape number 18,32,33,34,37,38, and 40. The visual landscape quality points in Eka Karya Bedugul Botanical Garden need a regular and persistence maintainence to extend the longevity and aesthetic quality of the natural landscape.

Rutaceae: conservation at Eka Karya Bali Botanic Garden and its in vitro antifungal activity screening

Several species of Rutaceae have been widely used and commercialized in all regions in Indonesia. Some species of Rutaceae are consumed as fresh fruit and traditional medicine for various kinds of diseases, as well as to add aroma to various Indonesian culinary. Since 1959, Eka Karya Bali Botanic Garden (Eka Karya BBG) has successfully collected dozens of Rutaceae species with unknown potential. In addition to reporting the conservation of Rutaceae in Eka Karya BBG, this study aimed to screen the antifungal activity of Rutaceae methanolic extract toward Aspergillus niger, Cladosporium sp., and Fusarium solani. Leaves of 13 species of Rutaceae (Boenninghausenia sp., Citrus aurantifolia, C. maxima, C. medica, Clausena sp., Melicope sp., Micromelum sp., Murraya paniculata, Toddalia sp., Zanthoxylum sp., Z. alatum, Z. limonella, and Z. ovalifolium) were collected, cleaned, air-dried, soaked in methanol for three days, then evaporated using a rotary evaporator to obtain the plant crude extract. The in vitro inhibitory assay was conducted by the diffusion method. As a result, only C. medica, Clausena sp., and Z. limonella exhibited antifungal activity against those tested fungi. Their antifungal activity increased on day 2 post-treatment but slowly decreased on day 3. Thus, the result of this experiment can be used as preliminary data to researchRutaceae plant extracts as an alternative method to control pathogenic fungi. However, further research is needed to maintain and increase its inhibitory effect.

Begonia muricata Blume and Begonia serratipetala Irmsch durability as indoor pot plant in Eka Karya Bali Botanic Garden

Begonia is very popular as a foliage plant and some begonia species grow up in pots. Begonia serratipetala and Begonia muricata are Indonesian begonia species that are well suited as indoor potted plants because of their leaf color and shape. In addition, the Bali Botanical Garden's landscape nursery would like to use these begonias for decoration in all buildings. However, it still needs to be studied how long the shelf life of the two begonias is in indoor environments in the highlands without air conditioning (AC). The aim of this study was to investigate the indoor shelf life of B. serratipetala and B. muricata. This research method consists of two steps. The first step was the acclimation phase and the second step was the indoor placement phase. Each begonia was repeated three times. Parameters studied included plant growth (plant height, leaves, leaf width, and leaf length) and environmental factors (sunlight intensity, air temperature, and humidity). The data were analyzed descriptively. Correlation analysis was used to determine the relationship between growth parameters and environmental factors. The result showed that both begonias (B. muricata and B. serratipetala) have similar persistence to indoor begonia species within two weeks, the ideal time for plant replacement

Analysis of Interface & Information Content of LIPI Botanical Gardens Website Based on Scanmic Model

Background of the study: Website is an online media institution to promote and disseminate the information services to the public. The LIPI botanical garden website has interesting information to study, such as information of plant collections, library services, and website content. The Scanmic model can be used to analyze the appearance and information content of the botanical garden website.
 Purposes: to know the plant collections, library services, and website analysis results at LIPI botanical gardens, namely KR Bogor, KR Cibodas, KR Purwodadi, and KR Eka Karya Bali.
 Method: This type of research is descriptive – qualitative, data sources by: information retrieval on the LIPI botanical garden website, literature study, and documentation. Analysis of the website appearance and content by Scanmic model criteria, namely: screen design, content, accessibility, navigation, media use, interactivity, and consistency.
 Findings: The results of this study indicate that the plant collection in each botanical garden is different, and the information can be accessed through library services. The results of the Scanmic model analysis showed that of the 7 criterias of 21 indicators only 15 indicators were fulfill by the LIPI botanical garden website.
 Conclusion: It is necessary to develop the features and content of the LIPI botanical garden website continuosly to be more user friendly and interactive.

Preliminary study of black aspergilli inhabiting Piper rhizosphere from Eka Karya Botanical Garden, Bedugul Bali

The black aspergilli (Aspergillus section Nigri ) occupy a broad spectrum of habitat, and they are an essential group of species in food mycology, medical mycology, and biotechnology. This study aimed to isolate and identify the black aspergilli inhabiting five samples of Piper rhizosphere collected from Eka Karya Botanical Garden, Bedugul Bali. In this study, 71 strains of black aspergilli were isolated, and 20 strains of them have selected and characterized using morphological, molecular, and phylogenetic analysis. Morphological data results are useful for preliminary identification, but they did not have been totally effective in describing and elucidating 20 selected strains into species level. Further molecular identification and phylogenetic analysis based on ITS rDNA showed that from 20 selected strains, four strains were identified as Aspergillus aculeatus sensu stricto, three strains were identified as Aspergillus japonicus sensu stricto, four strains were identified as Aspergillus niger sensu lato, and nine strains were identified as Aspergillus tubingensis sensu stricto. Preliminary exploration of fungi through isolation and identification was the first step to discover the potential strains that able to produce the promising metabolites and bioactive materials. The study results are expected to be the initial microbial resources and information for screening and utilizing the black aspergilli through bioprospecting.

Analysis of Cinnamomum Land Suitability and The Conservation Efforts at Eka Karya Bali Botanic Garden

Cinnamomum is an aromatic plants that have high economic value. At the Eka Karya Bali Botanic Garden Plant Conservation Center, the Cinnamomum collection has a problem, that is drought and deciduous leaves. The purpose of this study is to determine the land suitability class and climate of the growth of Cinnamomum collections. The method used is by matching the Cinnamomum growth conditions data to the actual data on the condition of the land. The results show that the level of land suitability for Cinnamomum collections is S3 (marginally suitable) with a limiting factor is water availability. Strategies that can be used to reduce the impact of excess water are water management and the application of organic matter.