bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biology and population dynamics analysis of fringescale sardine (Sardinella fimbriata) in Bali Strait waters, Indonesia
Authors: Bintoro Gatut , Setyohadi Daduk , Djoko Lelono Tri , Maharani Fitri 
Published: December 2019

Abstract
Fringescale sardine (Sardinella fimbriata) is small pelagic fish that has an increasing production every year. This can trigger the occurrence of overfishing, so it is necessary to study the biology and dynamic population of fish. This research was conducted in December 2016 -May 2017. The purpose of this research was to determine the biological aspects and population dynamic of fringescale sardine (S. fimbriata) in Bali Strait. Samples were obtained from surface gillnet landed in Muncar fishing port, with 1471 of fish. Results showed that sex ratio was about balanced with the proportion of 55% male and 45% female. Length and weight relationship was negative allometric patterns. Length of first mature (Lm) male and female was 11.95 cm and 10.79 cm respectively. Based on dynamics population analysis it was found that length at first capture (Lc) was 10.44 cm. While K, L∞ and t0 were 0.54/year, 19.6 cm and -0.149 year respectively. In addition there was only one peak recruitment occured in 7th month of recruitment pattern. Another analysis indicated that a value of natural mortality (M) was 1.38 with sea surface temperature (SST) of 29.45°C. According to length frequency data total mortality (Z) was 6.41 so that fishing mortality (F) was calculated to be 5.03. Hence value of exploitation rate (E) was 0.79. It can be concluded that the fisheries resources status is categorized as overfishing.
The Effect of Explant Types and Plant Growth Regulators On Callus Induction of Geranium (Pelargonium graveolens L’Her) In Vitro
Authors: Faizul Huda Moch , Indriyani S , Widoretno W 
Published: December 2019

Abstract
The purpose of this study was to determine the effect of explant types and plant growth regulators on callus induction of geranium (Pelargonium graveolens L’Her). Callus induction was carried out by culturing leaf and petiole explants from ex vitro geraniums on MS + 0.5 mg/l 2.4-D + 0.1 and 0.3 mg/l Benzyladenine (BA) or Kinetin. Each culture was carried out in 5 replications, cultures were incubated in rooms 25°C and 600 lux. The parameters days for callus induction and percentage of callus formation were observed. Geranium callus formation was influenced by types of explants and plant growth regulators. Petiole explants was able to induce callus better than leaf explants. Days for callus induction at second week and percentage of callus formation of petiole explants were 58 and 58% compared to leaf explants were only 53 and 54%. Plant Growth Regulators BA combined with 2.4-D was able to induce callus better than kinetin. The best callus formation was produced from petiole explants cultured on MS + 0.5 mg/l 2.4-D + 0.3 mg/l BA by 84%.
Comparative study of leaf stomata profiles among different ploidy levels and genomic groups of bananas (Musa L.)
Authors: Auliya I , Hapsari L , Azrianingsih R 
Published: December 2019

Abstract
Stomata are presumable to be a potential taxonomic differentiating character. This study was aimed to describe the leaf stomata characteristics of banana from different genomic groups, to analyze its clustering pattern, and to confirm the potential character of leaf stomata as a taxonomic marker. Plant materials used in this study were twelve banana leaves; representing 6 genomic groups (AAw, AAcv, AAA, AAB, ABB, and BBw). Stomata observation was carried out by replica method on both adaxial and abaxial of leaf near to petiole. Results showed that number of stomata in all bananas were higher on abaxial than adaxial. The diploid bananas have rounded shape of stomata while the triploid bananas have elliptical shape. Bananas with B genome tend to have regular stomata arrangement. Ploidy level in bananas is inversely correlated to the number of stomata, but positively correlated to stomata length and size. The diploid bananas were having high number of stomata but smaller stomata length and size, than the triploids. The genome size is influenced to the stomata size. Bananas with A genome tend to have larger stomata size than B genome bananas. Clustering analysis based on stomata profiles resulted two main groups following its ploidy level and genomic groups. Thus, stomata profiles can be used as a complementary character to classify among different genomic groups of banana.
Interspecific variation in herbivory level and leaf nutrients of mangroves Rhizophora
Authors: Trisnawati Indah , Muryono M , Desmawati I 
Published: December 2019

Abstract
Trees and saplings of two mangrove species, Rhizophora stylosa Griff. and Rhizophora mucronata Lam. were observed in herbivory level (leaf damage area and percentage of herbivory) and leaf nutrients (total nitrogen, phosphorus, potassium, water content and deterrent tannin). We observed mangrove habitat located around Institut Teknologi Sepuluh November (ITS) Campus in Surabaya, East Java dominated by Rhizophora vegetation. Herbivorous insects showed an individual abundance of 15.15% of the total insects found in mangroves around the studied areas. Seedlings tended to be significantly higher in relative leaf damage and preferred by the herbivores than trees. One way ANOVA showed a non-significant difference in leaf area damage between two species (F=0.63, p-0.43; F=2.29; p-0.13). The concentration of leaf nutrients was significantly different between two species than habitus. Total nitrogen and water content in R. mucronata were significantly higher than in R. stylosa (F=5.10, p-0.03; F=142.13, p-<0.0001), whereas phosphorous and potassium (K) was significantly higher in R. stylosa than in R. mucronata (F=15.25, p-0.0002; F=75.916; p-<0.0001). Descriptively, R. stylosa leaves tended to be higher in deterrent tannins than R. mucronata, especially in seedling habitus. Leaf age, represented by plant habitus, is less to be related to high leaf palatability and insect herbivore nutrition than mangrove species.
Pesantren-based disaster mitigation strategy : case study pondok pesantren Darunnajah Cipining Bogor
Authors: Nur Aulia Rihlah , Setianingsih A I , Kurniawati  , Narulita S 
Published: December 2019

Abstract
This study aims to analyze the pesantren-based drought disaster mitigation strategy. This research method is a descriptive research method with a qualitative approach to describing drought disaster mitigation in pesantren. To get the right and appropriate informants, the sampling technique in this study used a purposive sample system. Data collection is done by using interview techniques, documentation, literature study, and observation. Mitigation in this research refers to mitigation theory which divides mitigation into 2 (two) forms of strategy, namely: first, structural mitigation, in the way of infrastructure development as a driver to minimize the impact of disasters through the use of technological approaches. The symptoms observed were a compilation of a database of potential landslides and the creation of an early warning system. Second, non-structural mitigation, in the form of management and spatial training to improve community capacity. This research concludes: Mitigation of drought in the Cipunn Darunnajah Islamic Boarding School in Bogor is carried out structurally and non-structurally. Structural mitigation is done by compiling a database of potential hazard areas and installing an Early Warning System (EWS). Non-structural mitigation is carried out by providing information, outreach and training and disaster simulation. Efforts have been made to improve the effectiveness of disaster mitigation through the establishment of Disaster Response Students and Disaster Resilient Alumni.
Characteristic of Geothermal System at Semurup Manifestation, Kerinci: Geological and Geochemistry Investigation-Based
Authors: Jarot W , Hari W U , Muhammad I L , Yuliamorsa S , Anggideliana S , Juventa  , Yosa M 
Published: December 2019

Abstract
Semurup Village on Kerinci Regency, Jambi is indicated potential for geothermal resources; it is proved by the presence of hot springs (Gao Luluk, Gao Dili, and Gao Mudik), non-active geyser, and silica sinter deposit. This research aimed to investigate reservoir characteristics which the approach was to interpret the Semurup hot spring fluid type and reservoir temperature based on elements fluid contained. This research was carried by the analysis of B, Al, Ca, Mg, Na, K, Li, F, Cl, SO4, HCO3 contained of hot spring for reservoir characterization conducted by Cl-SO4-HCO3, B-Li-Cl, and Na-K-Mg ternary diagram and conductive silica geothermometer for reservoir temperature estimation. Semurup hot spring was classified by volcano-tectonic geothermal system, because it was associated with Quartenary Lumut Volcano and Sumatran Fault Zone. Unit stratigraphy was composed by Eosene pyroclastic rocks of Bandan Formation (kaoliniteclay minerals, calcite, feldspar) and Undifferentiated Volcanic Rock Formation (silica minerals, chlorite, and calcite). Geological setting was possibly vary of hot springs (chloride -bicarbonate) and deposits (silica -bicarbonate). There were three types of geothermal manifestation, which were neutral hot spring, geyser, and silica sinter. The result showed that GaoLuluk fluid was dominated by Cl at 53.06% while that of GaoMudik was high in bicarbonate at 72.81%. Silica conductive geotermometers gave equilibirum reservoar temperatures ranging from 166°C -241°C. Based on the geological and geochemical investigation, the reservoir fluid of Semurup manifestation had occured dilution with calcite-contains on groundwater and the reservoir temperature was classified as moderate -high, which was high potential for geothermal energy resource.
Development strategy for the Sustainability of Liberica Coffee In Jambi Province, Sumatera, Indonesia
Authors: Rosyani  , Napitupulu D , Kartika E 
Published: December 2019

Abstract

Abstracts. Indonesia is positioned as the third producer of coffee in the world in which Liberica coffee is one of its types. Currently, Liberica coffee is beginning to be spread in Jambi province market and results in many requests from various provinces and neighboring countries. Unfortunately, the cultivation of Liberica coffee has not grown and developed sustainably. Therefore the purpose of this study is to find out what internal and external factors influence the development of sustainability of the Liberica coffee, and to analyze the strategies for the sustainability of Liberica coffee. FGD were conducted to collect important data from the key informan and the data were analyzed by using SWOT analysis. The results of research shows that the internal factors in term of weakness includes age of plants, low farmers’ knowledge, low family participation, lack of business capital, low maintenance of plants, land conversion, low motivation, weak formation of members in groups. For the internal factors in term of strength consists of intellectual rights, cooperatives, land ownership, strategic locations, farmer groups, low-caffeine. Two main factors belong to external factors which are threat and opportunities. Threat factors include weak of empowerment, land use change, tend to be in one location, and low quality while opportunities factors consist of partnerships, encouragement from researchers, microfinance, institutions, institutional supported, and demand continues to increase. The result of SWOT analysis depict that the position for the development was found on Quadrant 1 (aggressive strategies). Aggressive strategies indicate beneficial since they have opportunities and strengths.
Diversity of Arbuscular Mycorrhizal Fungi from Liberica Tungkal Jambi Coffee Plant Rhizosphere on Peatland
Authors: Kartika Elis , Deviani Duaja Made , Gusniwati  
Published: December 2019

Abstract
Arbuscular Mycorrhizal Fungi (AMF) diversity found in Liberica Tungkal Jambi coffee plant rhizosphere which planted on peatland in Tanjung Jabung Barat, Jambi Province has not been reported. The existence of various types of AMF is important to know because AMF can increase growth and production of coffee plant. This study aims to identify the diversity of AMF species from coffee plant rizosphere on peatlands in Tanjung Jabung Barat. The soil samples were taken from the coffee plant rhizosphere in Parit Pudin, Senyerang, and Serdang Jaya villages at a 0-20 cm depth. The isolation was carried out by Pacioni’s wet screening technique and continued by centrifugation technique from Brunndret, while spore identification was performed based on morphological characterization and its response to Melzer’s solution. The results showed that both in Parit Pudin and Senyerang villages found two genus, i.e. Acaulospora and Glomus, whereas in Serdang Jaya Village only Glomus was found. In Parit Pudin obtained 1 Acaulospora sp. and 6 Glomus sp., in Senyerang found 3 Acaulospora sp. and 6 Glomus sp., and in Serdang Jaya only found 6 Glomus sp. In Parit Pudin village, the spores abundance of Acaulospora sp. and Glomus sp. were 5 and 63 spores per 50 g of soil samples. In Senyerang village, the spores number of Acaulospora sp. and Glomus sp. were 57 and 49.5 spores per 50 g of soil samples, while in Serdang Jaya Village, the number spores of Glomus sp. as much as 46.83 spores per 50 g of soil samples. In all locations studied, there were various types of AMF with different numbers of spores. Spores found in soil samples showed variations in spore shape, spore color, attachment of hypha stalks, and spore walls.
Hydrogen Sulfide Exsposure Coverage for Residents’ Health Risk at Sukawinata Landfill
Authors: Faisya A F , Ardillah Y , Putri D A 
Published: December 2019

Abstract
This study aims was to assess environmental health risk of hydrogen sulfide gases exposure for residents living around Sukawinatan Landfill. Methods: This study was descriptive research and used quantitative analysis method. The approach used was Environmental Health and Risk Assessment. Sample in this research was 100 respondents who were divided two radiuses, 300 meters and 600 meters away from the landfills, 50 respondents for each radius. Purposive Sampling was conducted to select respondents. Air sampling was conducted to assess hydrogen sulfide concentration around landfill. Data was collected through interview using questionnaires, weighing weight and assessment of hydrogen sulfide concentration used impinger. Data analysis was conducted using univariate and risk analysis. Result: The study found that the average of hydrogen sulfide concentration in radius 300 and 600 meters were 0, 0017 mg/m3 and 0, 0023 mg/m3 which were not exceed the threshold based on State Minister of The Environment decision Number 50 in 1996. Then, we still found that the residents remained at risk with RQ ≥ 1. The risk analysis resulted that there were 38% residents in 300 meters and 30% residents in 600 meter radius had RQ ≥ 1. Discussion and Conclusion: Though, the concentration of Hydrogen sulfide was still below the threshold but the residents living around Sukawinata landfill would be at risk to be exposed by Hydrogen sulfide which is dangerous for their health. Relocation of sukawinata landfill should be conducted since it is not eligible for landfill area anymore.
Effect of Growth Regulators on Cell Growth and Flavonoid Production in Cell Culture of Elaecarpus grandiflorus
Authors: Aini Habibah Noor , Nugrahaningsih WH , Ulung Anggraito Y. , Mukhtar Khoirul , Wijayanti Nur , Mustafa Fajar , Rostriana Yosa 
Published: December 2019

Abstract

Elaecarpus grandiflorus has the potential to be developed as a source of bioactive compounds. This study aims to obtain the most optimal medium for cell culture induction and flavonoid production in Elaeocarpus grandiflorus culture. Picloram (3.5, 5 and 7.5 ppm) and 2, 4-D (1.5, 2.5 and 3.5 ppm) were used for induction of cell suspension culture. Cell suspension culture induction was observed through growth parameters (fresh and dry weight of cells) and cell suspension formation. In addition, it was found the production of flavonoids. Induction of cell culture is done by growing callus on Woody Plant Medium (WPM) with a variety of growth regulators. The culture was maintained in a shaker at a speed of 120 rpm for 30 days. At harvest, cells were filtered, weighed and dried. The spectrophotometer was used to determine the total flavonoid content. Quercetin was used as a standard compound. The best cell culture induction was obtained in cells maintained in WPM medium with the addition of 2, 4-D 2, 5 ppm. All cells in various treatment media can produce flavonoids with varying concentrations. WPM medium with the addition of 2, 4 D and Picloram can be used for the production of flavonoids from Elaecarpus grandiflorus cells.
The Sustainable Ecotourism Potential Development With Special Reference to Oliveridley Sea Turtle (Lepidochelys olivacea) Along Bantul Beaches, Indonesia
Authors: Budiantoro Agung , Retnaningdyah C , Hakim L , Leksono A S 
Published: December 2019

Abstract
All seven species of sea turtle are endangered species, Olive ridley Lepidochelys olivacea is listed as red list of threatened species by the IUCN. From 2012 until 2018 only L. Olivacea that can be found landing at Bantul Beaches. Bantul has four beaches for sea turtle conservations; Pandansimo, Goa Cemara, Samas, and Pelangi. The purpose of this study was to obtain information on the perception of general tourists about the potential development of turtle conservation based ecotourism in Bantul. A questionnaire by random sampling used to collect data to respondents (200 visitors). The data processed using quantitative descriptive. SWOT analysis methods use to evaluate the possibility of sea turtle based sustainable ecotourism developtment. The results show that almost of tourist perception about: the condition of the beach in Bantul that is positive; the responses of the beach operators were good; approve of turtle conservation based ecotourism development; agree with the policy to donate for the efforts of turtle conservation; have the perception that the turtle has its attractiveness for beach tourism; agree that giving an explanation of the importance of turtle conservation before the release of hatchlings open to the tourists’ insight about the importance of turtle conservation. The area of the beach during the release of hatchlings is very supportive because of limited visitors when release hatchlings. The presence of donations by tourists in conservation efforts can be used as a source of funding for turtle conservation. From SWOT analysis, the sea turtle conservation in Bantul is potential to be developed into sustainable ecotourism.
Diversity and Distribution of Sea Slugs (Gastropods: Heterobranchia) in Sempu Strait, Indonesia
Authors: Andrimida Anthon , Hermawan R 
Published: December 2019

Abstract
The heterobranch sea slugs are one of the most under-studied marine lifeforms found around the Sempu Strait Area. Currently, the records of their occurrences around this area are only known from the underwater macrophotography enthusiast’s collection and have not been published on a scientific article. We conducted underwater surveys spanning from October 2017 to June 2019 at eleven dive sites of Sempu Strait and yielded 45 different species of heterobranch sea slugs, including 35 species of Nudibranchia, 6 Aplysiida (Anaspidea), 2 Cephalaspidea, and 2 Sacoglossa. The analysis of the sea slugs occurrence on Sempu Strait reveals that the areas around the Western Sempu Strait, including Rumah Apung, Kondang Buntung, Tiga Warna, and Stumbut have the most diverse sea slugs species, even though the majority of the species have a low sighting frequency. The analysis also revealed that roughly a third of the sea slugs encountered on the Sempu Strait areas are found on the coral rubble substrate. This study revealed that Sempu Strait has slightly lower sea slug species diversity than another nearby studied site. The records provided here hopefully could help to encourage macro-photography recreational dive activities to further develop the ecotourism sector around this area.
Screening of rice gene pool for resistance to pyriculariosis by phenotyping and DNA genotyping
Authors: Korotenko T , Zh Mukhina , Garkusha S , Savenko E , Bragina O 
Published: December 2019

Abstract
When creating new resistant varieties of rice of an intensive type, an important aspect of the breeding process is the study of the diversity of cultural genetic resources. In the Krasnodar Territory, in Russia and in the world as a whole, the most harmful and common rice disease is pyricularosis (Pyricularia oryzae Br.et Cav.). The aim of this work was to study the genetic diversity accumulated in the collection of the rice institute (ARRRI, Krasnodar city) for the resistance to the causative agent of pyriculariosis to create a new source material with genes for a wide spectrum of resistance. In the course of studies, the results of phenotypic (1337 samples), immunological (775 samples) and molecular screening (115 samples) of the gene pool of Oryza sativa L. were obtained for the resistance to the pathogen of pyriculariosis. The rate of development of the disease (RDD,%) over the years of testing the general plasma varied within 5.6-85.0%. The proportion of varieties medium resistant to the fungus M. Grisea was significantly higher in almost all countries except Italy and Brazil, where the number of resistant forms was at the level of medium resistant. In the general plasma of Bulgaria, Uruguay, Greece, India and African countries, stable forms were generally absent. The world variety of rice genotypes showing resistance to the local pathogen population has been shown. Screening of the rice gene pool for the presence of the Pi-9 and Pi-k genes made it possible not only to identify carrier donors, but also to establish their frequency of occurrence in the global general plasma. Against a provocative background, the identification of effective resistance genes was carried out using monogenic differentiator lines of Pyricularia oryzae races, 15 resistance genes were isolated.
The technique of automated applying of polymer coatings used for repair of tractor parts
Authors: Psarev D , Khatuntsev V , Mishin M , Astapov S , Rozhnov A 
Published: December 2019

Abstract
Restoration of case parts of machines significantly reduces the cost of their repairing. The present paper proposes a method for restoring case parts using the repair size method. Depending on wear degree, the fitment holes are bored to three repair sizes. The prepared hole is inserted with a new bearing, the outer ring of which is covered with a polymeric coating of the appropriate thickness ensuring the fixity of the joint. As a result of theoretical studies, the model was obtained for the formation of a uniform polymer coating on the outer surface of a rotating cylindrical part. The facility and technological equipment were developed for applying a polymer coating of F-40C elastomer solution onto the outer surface of the rotating bearing. The facility includes screwing lathe 1K62, centering drift pin, bath and magnetic holder MV-V. The holder is designed for mounting a bath filled with polymer solution and its plunging movement when rolling bearings are immersed in polymer solution. The drift pin serves for centering and assembling bearings. The assembled drift pin is inserted into the chuck of the machine rotating the pin when applying polymer coating. The screwing lathe 1K62 is equipped with an INNOVERT frequency converter of H3400A05D5K type, which allows adjusting infinitely the spindle speed from 0 min-1. The paper presents the results of experimental studies on the F-40C elastomer shrinkage, the parameters of the mode of immersing parts into its solution, the dependence of the geometric parameters of the formed polymer coating on the components of application and adhesion modes for polymer coatings based on F-40C elastomer solutions of different viscosity. The acceptable thickness of the polymer coating of elastomer F-40C on the bearing 209, ensuring the non-failure operation of the restored seating with a cyclic radial load of 20 kN is 0.1 mm.