bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ecotourism management of coastal forest area in small islands, Bandar Lampung City: an internal factor analysis
Authors: Arioen Refi , Tsani Machya Kartika , Harianto Sugeng Prayitno , Surnayanti  , Zuhelmi Tomy Pratama , Novasari Destia , Rachmah Widya Anisa 
Published: December 2023

Abstract
Bandar Lampung City has small islands that have the opportunity to be used as ecotourism objects in coastal forest areas. Pasaran Island and Permata Island are the islands that have been developed and managed. The presence of this ecotourism attraction may have a positive impact on the community’s economic and environmental education efforts to keep the environment protected. The administration of this ecotourism region truly needs a good management strategy to support these. To create a plan for managing ecotourism on Pasaran Island and Permata Island, it is essential to understand the internal elements involved in the management of ecotourism. This study’s goal was to identify the internal variables that affected how ecotourism was managed on Pasaran Island and Permatan Island. This research was conducted on Pasaran Island and Permata Island, with a qualitative descriptive method. Data collection uses in-depth interview techniques, field observations and field notes. Resource persons for key informants were determined by purposive sampling technique. The results showed that 9 strengths and 10 weaknesses were found among the 19 internal management elements for Pasaran Island. 16 internal characteristics, including 10 strengths and 6 weaknesses, were present in Permata Island.
The new settlement Long Pahangai II Village mapping plans based on participatory and land suitability in Mahakam Ulu Regency, East Kalimantan
Authors: Herlambang H , Aryanto  , Prasetyo A 
Published: December 2023

Abstract
Long Pahangai II Village shows a worrying condition due to flooding, erosion, and river flows, which have caused damage to most of the houses, infrastructure, and public facilities. Therefore, the community agreed to move to a new location across the river. The new Kampung Long Pahangai II settlement plan was preceded by a planning process involving the community in a participatory manner and considering environmental and forest conditions. This research aims to create a new village plan map for Long Pahangai II Village by considering land suitability conditions and community desires through participatory mapping activities. The research used two approaches: mapping the land suitability and community participation to create a new village planning map. A new settlement plan map was determined through group discussions, taking into account land suitability and community preferences. The research results show that organizational plans based on the results of participatory mapping need to be adapted to the community and the direction of the land according to topographic conditions. The area designated for the organization is 6.77 ha, the protected area is 33.07 ha, and around 29.53 ha is for the buffer area.
Social forestry development in East Kalimantan: challenges and opportunities
Authors: Purwanti E , Sardjono M A , Wijaya A , Rahmina  , Putra H , Wahyuningtyas DC , Sormin DH , Setiawan EP , Wulandari E , Hidayat T 
Published: December 2023

Abstract
Social forestry (SF) is a strategic government program with the primary goal of enhancing the well-being of communities living around forested areas. This study aims to evaluate institutional governance and performance of social forestry holders in East Kalimantan, Indonesia. This research also analyses challenges and opportunities of social forestry development in the region. The research findings indicate that in April 2023, there were 123 social forestry permit holders in East Kalimantan, managing a total area of 271,113 hectares. Among these permit holders, 51 (42%) demonstrated good institutional governance and performance, while 19 (15.45%) had good governance but weak performance. Furthermore, 15 (12.20%) permit holders had weak governance but good performance, and there were 38 (30.9%) permit holders with both weak institutional governance and performance. The social forestry program in East Kalimantan still faces several challenges, including institutional capacity, funding and institutional issues, and policies. Strategies that can be implemented include: integrating the social forestry program with village planning (Integrated Area Development/IAD), strengthening institutions through mentoring and building a center of excellence, accessing markets for commodities, and providing funding and financing access for the social forestry holders.
Habitat suitability of Proboscis Monkey Nasalis larvatus Wurmb. in Muara Kaman Sedulang Nature Reserve, East Kalimantan
Authors: Hidayat A , Sulistioadi Y B , Kustiawan W , Sukartiningsih  , Haryanto Z , Suba R B 
Published: December 2023

Abstract
Proboscis monkey (Nasalis larvatus Wurmb.) is an endemic primate species to Borneo’s island. Muara Kaman Sedulang Nature Reserve is one of protected area for this species in the island, but it’s riverine habitat is largely lost by forest fires and conversion for aquaculture, agriculture and settlements. A conservation action in the area needs spatial information regarding the habitat suitability of proboscis monkey. This study aimed to project a spatial model for habitat suitability of proboscis monkey in the reserve through species distribution modelling (SDM) using the Maximum Entropy (MaxEnt), based on the species’ occurrence records and environmental predictors. The results showed that suitable habitat for proboscis monkey was 3,410.27 ha (5.22% of the nature reserve total area). Model performance evaluation shows an accuracy of the Area Under Curve (AUC) value of 0.940, which is a very good category. Jackknife-test results showed the presence of secondary swamp forest (40.8%), distance from water bodies (25.9%), land cover (12.4%), secondary forest (6.3%) and mixed gardens (5.1%) are five variables that significantly contribute to the distribution of proboscis monkeys in the reserve. This study provides suggestions for conservation of proboscis monkey in remaining suitable habitat, which include local people involvement, monitoring and habitat restoration.
Conservation of endangered tree in the coal mining area in Tabang, East Kalimantan: biodiversity offset and protection
Authors: Sitepu Bina Swasta , Rengku Mardi Tofani , Priyono  , Teguh  , Warsidi  , Suharja Iman , Wibisono Yusub , Wahyudin  , Laban Banjar Yulianto , Herlambang Yustinus Aditya , Yassir Ishak 
Published: December 2023

Abstract
Coal production that conducted open mining techniques transformed the ecosystem and was followed by the degradation of land quality. After the activity, biodiversity loss and water and soil damage occur in the ecosystem. This study observed the potential of endangered trees as essential elements of the ecosystem that experienced negative impacts after the coal mining activity and how to improve the situation. Vegetation analysis was conducted with eight line of plotted stripe random sampling, and followed with calculation of IVI, diversity index, and evenness index. Tree identification in the 3.2 ha of sample plot in the forest area of the coal mining concession indicated that there are 224 species of trees and 17 species are endangered with the domination of the Dipterocarpaceae family and one species is protected. Collection of seedlings and saplings of the species, followed by transferring the plants into the arboretum area developed to protect tree species in the surrounding area, could be a solution to ensure the species’ existence. Using seedlings and saplings as enrichment species in the restoration and rehabilitation area are also an application of biodiversity offset that is part of sustainable biodiversity management in the mining industry.
Alaban wood (Vitex pinnata) as a promising feedstock in the community-scale charcoal industry: A case study of KPHP Kendilo, Indonesia
Authors: Sudaryanto E , Haqiqi M T , Yuliansyah  , Rujehan  , Amirta R 
Published: December 2023

Abstract
Indonesian forest production management unit, also called KPHP, have initiated various programs to develop the prosperity of local societies around forest area, including their independence in the energy sector. Charcoal is an ancient green energy which is still traditionally produced by those people for daily usage. Currently, the demand of charcoal for many modern industries in the world has been growing, showing its high potential as future export commodities since Indonesia has a richness in the forest biomass resources for charcoal feedstock. Therefore, we conducted a suitability analysis of the community-scale charcoal production at KPHP Kendilo, one of the forest management units located in East Kalimantan province. Alaban wood (Vitex pinnata) is considered the most potential biomass in this area, indicating its high availability in nature for charcoal feedstok. It was converted by a drum kiln technique using ratio of fuel wood and raw material at 1 : 2 (dry matter) for approximately 4 hours. It showed that the plant having diameter of above 15 cm possessed the highest charcoal yield (6.83 ton/ha), with appropriate energy properties (7,001 kcal/kg). Finally, this study points out the promising of Alaban wood in KPHP Kendilo for charcoal production in the rural communities.
Plants Performance in the coal mining restoration area in Tabang, East Kalimantan
Authors: Sitepu Bina Swasta , Priyono  , Wibisono Yusub , Wahyudin  , Laban Banjar Yulianto , Herlambang Yustinus Aditya , Yassir Ishak 
Published: December 2023

Abstract
Coal mining production in East Kalimantan use open mining methods that changes ecosystem performance. After mining activity, the company is obligate to restore and rehabilitate the area to improve the land conditions. The study aims to evaluate plant performance in four different plants age to give brief information in restoration and rehabilitation in post coal mining land. Four different ages of two species, Falcataria falcata and Enterolobium cyclocarpum, were measured for diameter, height, and survival rate in the 0.25 ha of the plot sample. The measurement indicated that Falcataria falcata could reach diameter and height rate per year in 2.89 centimetres and 2.08 meters, respectively. As comparison, The Enterolobium cyclocarpum diameter performance could reach 3.54 centimetres per year; however, height performances only reach 1.75 meter per year. The first species indicated better indication for the standing performance; however, the other species indicated better performance in the canopy cover that could be advantage for soil micro climate and water conservation.
Performance of six potato genotypes as raw material for the national potato chip industry
Authors: Kusmana  , Handayani T 
Published: December 2023

Abstract
Industries that process potato chips still use imported raw materials because the potatoes grown by farmers are table potato varieties that are not suitable for making chips. The research aims to obtain raw material varieties suitable for national chips industry. The study was arranged using a Randomized Complete Block Design with 4 Replications. The number of genotypes tested was 6 genotypes derived from breeding programs of Ministry of Agriculture, the plant population per plot was 60 plants. The test results obtained the Bonito Agrihorti variety with very good quality attributes of processed chips such as high Specific Gravity (Sg) of 1.080, low reducing sugar of 0.07%, high starch content of 11.44% and also high yield productivity of 24.5 ton Ha-1. Test frying was obtained that Bonito Agrihorti showed excellent due to taste, chip color, crispness, appearance with a score of 4. The impact of the results of this study can be used as a recommendation for potato chip growers as well as industries to use the Bonito Agrihorti variety as an industrial raw material and can substitute imports industrial potato raw materials.
Analysis of Curly Red Chili Farming at Farmer-Level in Kerinci Highland
Authors: Edi S , Syafri Z R , Nurhayati N , Meilin A 
Published: December 2023

Abstract
Curly red chili (Capsicum annum L.) is a horticultural commodity with high economic value and a big role in domestic needs, export commodities, and the food industry. Chili production at Kerinci farmer level still needs to be increased due to low knowledge of chili cultivation technology, pest attacks, and the use of superior varieties. This research aims to determine cultivation technology and farming analysis of curly red chili in Kerinci Highlands. The research was carried out at the chili production center in Sungai Lintang Village, Kayu Aro Barat District, Kerinci Regency, from October to December 2022. Brief understanding of rural areas by meeting with village community leaders and chili producers followed by interviews with selected respondents using a questionnaire of 30 farmers consisting of three groups. Each group consists of 10 farmers based on the chili planting time in early 2022. Analysis of chili farming that uses plastic mulch with productivity of 8,860 kg/ha and without plastic mulch with 6,480 kg/ha. Economically, chili farming at the farmer level in Kerinci is profitable with an R/C ratio of 1.47 and a B/C ratio of 2.47 for respondents using plastic mulch and an R/C ratio of 0.83 and B/C ratio of 1.83 for respondents without plastic mulch.
Manipulation of flowering and fruiting induction through branch bending and fertilizer application in mandarin citrus cv. Batu 55
Authors: Devy N.F. , Hardiyanto  , Sugiyatno A. , Mufidah Lyli 
Published: December 2023

Abstract
Shoot modification for triggering flowering and fruiting induction in tropical mandarin citrus is not extensively documented, hence this research is critically important. The purpose of this study was to determine the influence of branch bending and fertilizer application on flowering and fruiting, hormonal level status, and physiological features in mandarin citrus cv. Batu 55. From May 2021 to March 2022, the investigation was carried out at Farmer‘s citrus orchard Dau in Malang (1,300 m above sea level), East Java, Indonesia. Bending (B1) or unbending (B0) and fertilizer (F1) or no fertilizer (F0) treatments were performed on existing three-year-old Mandarin cv Batu 55 trees with a planting distance of 3 x 3 m. The experiment was set up in a factorial randomized block design with four interaction treatments (B0F0, B0F1, B1F0, B1F1) and three replications. When compared to the control, the bending treatment with fertilizer application treatment raised the percentage of flowering plants by 100%. Five and nine months after treatments, the amount of fruit produced and harvested by this treatment was more than 19 and 1.6 times that of control plants, respectively. Branch bending and unbending treatments had relatively similar effects on the endogenous hormonal status and physiological behavior. Branch bending at the appropriate time of year may be beneficial in stimulating flowering and fruiting in mandarin cv Batu 55.
Mapping of chili varieties by vitamin C levels
Authors: Kirana Rinda , Deswina Puspita , Dwiatmini Kristina , Harmanto  
Published: December 2023

Abstract
One of the secondary metabolites produced by chili peppers is ascorbic acid. Ascorbic acid, better known as vitamin C, is a supplement that is widely consumed by humans. The study aims to map 37 varieties of chili peppers, consisting of 19 varieties of big chilies, 10 varieties of curly chilies and 8 varieties of cayenne peppers based on vitamin C levels. The chili peppers under study were planted at Lembang, West Java in March and harvested in August 2020. Measurements of vitamin C levels were conducted using the HPLC method. Vitamin C level data were mapped using the PAST 3.1 statistics program. The study succeeded in mapping chili varieties based on vitamin C levels to very low (2 varieties), low (10 varieties), medium (11 varieties), high (13 varieties), and very high (1 variety) categories. Big chili vitamin C levels ranged from 77.4 to 158.3 and averaged 122.7, curly chili vitamin C levels ranged from 92.9 to 168.0 and averaged of 137.5, and cayenne peppers vitamin C levels ranged from 45.6 to 144,9 with and averaged 92.2. The research showed that curly chilies had higher levels of vitamin C than big chilies and cayenne peppers.
Rice Growth Response and Yield to Different Planting Systems in Merauke Regency, South Papua
Authors: Beding Petrus A. , Palobo Fransiskus , Tiro Batseba M. W , Lewaherilla Niki E , Soplanit Alberth 
Published: December 2023

Abstract
Technological use potentially serves as the main factor in increasing production and productivity. One of the cultivation technologies that could be used to increase rice productivity through Legowo cultivation system and tegel system. Previous studies report that jajar legowo planting system could increase productivity by 1-1.5 tonnes/ha, or by more than 30% when compared to conventional planting systems. The study was conducted in Kamangi Village, Tanah Miring District, Merauke Regency from April to July 2019. This study applied a factorial randomized design, with the first being four rice varieties: Inpari 35, Inpari 36, Inpari 37 and Inpari 43. The second factor was the cultivation approaches, including jajar legogo and tegel planting systems. The rice field used in the study was owned by farmers and covered an area of 3 hectares, with 1.5 hectares using the jajar legowo 4:1 planting system and the remaining 1.5 hectares using the tegel planting system. The parameters observed included plant height, number of productive tillers, number of panicles per hill, and dry grain yield per plot. The data were analyzed using Analysis of Variance (ANOVA), If the results of the analysis of variance show a real effect, then proceed with the Duncan Multiple Range Test (DMRT) at the 5% level. The research results indicate that the productivity of the Inpari 37 variety using the jajar legowo 4:1 cultivation technique shows better results compared to the tegel system.
Applications of Natural Rooting Inducer and Immersion Time on Root Growth of Chrysanthemum Shoot Cuttings
Authors: Rineksane I.A. , Khasanah U. , Sarjiyah  
Published: December 2023

Abstract
Chrysanthemum is a cut ornamental plant whose production in Indonesia in 2021 occupies the highest position namely 344 million compared to other ornamental plants. Production of chrysanthemum seedlings using the shoot cuttings method requires growth regulators to support the rooting process. It is necessary to use natural growth regulators which are cheaper and easier to obtain to encourage cutting root growth. This study aims to determine the appropriate natural root induction substances and immersion time for root induction of shoot cuttings of Chrysanthemum morifolium sp. This research was conducted at Kulon Progo Regency, Special Region of Yogyakarta, Indonesia. The study was conducted using a single-factor experimental method and arranged in a Completely Randomized Design with 3 replications and 5 samples for each replication. The treatments tested were 80% shallot extract, 100% coconut water, and 100% rice water with an immersion time of 5, 15, and 25 minutes respectively, and commercial rooting induction substances-Rootone F® which was applied and left for 5, 15 and 15 minutes. Parameters observed were the percentage of viable cuttings, plant height increase, the number of leaves increased, percentage of rooted cuttings, number of roots, root length, shoot fresh weight, shoot dry weight, root fresh weight, and root dry weight. Observations were analysed using analysis of variance at the α level of 5%. If there is a significant difference between the treatments tested, then a further test is carried out using Duncan‘s Multiple Range Test. The results showed that 80% shallot extract with 15 minutes of immersion could replace the use of Rootone-F® and showed the best relative results on the parameters of the number of roots, root fresh weight, and root dry weight of Chrysanthemum morifolium cuttings.
Characterization of Fusarium Wilt Disease Among Different Strawberry (Fragaria sp.) Cultivars In Indonesia
Authors: Triasih U , Harsonowati W , Dwiastuti M E , Widyaningsih S. 
Published: December 2023

Abstract
Strawberry can be intensively cultivated in small-scale farms without a sequential crop rotation over time. However, to prevent pathogen infection, strawberry requires a continuous pesticide treatment that can harm soil qualities and exacerbate soil-borne pathogen infection. One of the important soil-borne diseases found in strawberries is fusarium wilt. Characterization of symptoms and disease resistance in different cultivars are crucial. This research aims to evaluate the disease resistance level of several strawberry cultivars to the causing pathogen. Eight strawberry cultivars were used in this research, i.e. OSO Grande, SC Pujon, EBI 13, Korea, Local Batu, Chandler, BK and RB AOI. These cultivars were inoculated with the pathogen to assess level of the disease resistance by root dip inoculation method. In this research, Fusarium oxysporum is found to be the main cause of crown rot and wilting in these cultivars. The disease intensities were not significantly different among cultivars. The highest and lowest intensities of the infected crown were recorded in the Korea and BK cultivars with 50% and 16.7% respectively, although there are differences in percentage of crown infected. Similarly, the crown root diameter is not significantly different among cultivars. On the other hand, the trichome size of these cultivars appeared to be affected by the pathogen infection, shown by the size reduction in the infected cultivars.
Application of 1-MCP does not slow down the ripening process of Mango (Mangifera indica L)
Authors: Prabasari Indira , Setiawan Chandra K. , Utama Nafi A. , Mabsyuroh Minna A. 
Published: December 2023

AbstractFruits and vegetables are perishable so that they are easily degraded and thus have a short shelf life. Some studies have been carried out intensively to extend the shelf life of fruit with the application of 1-methylcyclopropene (1-MCP) which is an ethylene inhibitor (indirectly) to slow down the ripening process and extend its shelf life. The benefits of using 1-MCP to delay fruit softening have also been published, however the inhibition of ripening and fruit softening by 1-MCP in mango (Mangifera indica) is very limited. 1-MCP delays fruit softening during storage by indirectly inhibiting ethylene synthesis and slowing the activity of cell wall-damaging enzymes, such as pectin methyl esterase (PME). To study the effect of 1-MCP on mango fruit quality and its shelf life, the experiment was carried out by measuring weight loss, colour, firmness, vitamin C, total soluble solids, titratable acidity, and reducing sugars periodically. For all fruit samples, the pulp was chopped, frozen in liquid nitrogen, and then stored at 8°C until further use. The results showed that application of 1-MCP at room temperature did not slow down neither the senescence process nor the shelf life of mango fruit on weight loss, colour, firmness, vitamin C, total soluble solids, titratable acidity, and reducing sugars parameters.