Pub Date : 2022-04-12DOI: 10.31258/jnat.20.1.24-29
Bagus Susilo Putra
Invasive plants are plants that can interfere with other plant life because invasive plants use competition and harm the host they live on. Animal conservation is currently the focus of research so that biodiversity is always maintained in the National Park such as mantangan (Merremia peltata (L.) Merr.) Chromolaena odorata (L), Stachtarpheta jamaicensis. Based on the way of life and rapid reproduction of this invasive plant, it disturbs the habitus of other plants in developing so that it can damage the food chain in the National Park. Conservation of animals in National Park must be in line with the conservation of the surrounding ecology so that the natural ecosystems in the National Parks and biodiversity are fully preserved.
{"title":"Types of Invasive Plants and Threats to Animal Conservation in National Park","authors":"Bagus Susilo Putra","doi":"10.31258/jnat.20.1.24-29","DOIUrl":"https://doi.org/10.31258/jnat.20.1.24-29","url":null,"abstract":"Invasive plants are plants that can interfere with other plant life because invasive plants use competition and harm the host they live on. Animal conservation is currently the focus of research so that biodiversity is always maintained in the National Park such as mantangan (Merremia peltata (L.) Merr.) Chromolaena odorata (L), Stachtarpheta jamaicensis. Based on the way of life and rapid reproduction of this invasive plant, it disturbs the habitus of other plants in developing so that it can damage the food chain in the National Park. Conservation of animals in National Park must be in line with the conservation of the surrounding ecology so that the natural ecosystems in the National Parks and biodiversity are fully preserved.","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128198287","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}
Bagus Susilo Putra, M. Kanedi, N. Nurcahyani, G. N. Susanto
Birds are one of the most diverse animals in the world, especially in Indonesia. Liwa Botanical Garden located in Pekon Kubu Perahu, Balik Bukit District, West Lampung Regency, is a conservation area with the theme of conservation and development of ornamental plants, representing the flora of Southern Sumatra. This research is a continuation of the collaboration between the Department of Biology and Balitbang UPTD Liwa Botanical Garden, West Lampung Regency. The presence of birds in the Liwa Botanical Garden is also a bioindicator of biodiversity for the environment in this area. By maintaining the presence of birds in the Liwa Botanical Garden means protecting their habitat and existing plants. The purpose of this study was to determine the species of birds based on the height of the perched trees in the Liwa Botanical Garden and the abundance of their species. The method used in this research is the point count with the observation time for 9 days in the morning and evening at the height of the tree in 3 different observation stations. Birds on KRL are mostly found on perches at an altitude of 2 - 7 meters, in the category of shrubs and trees, there are 19 out of 25 bird species found. The highest Relative Abundance Index (IKR) was Collocalia esculenta at 39.91% and the lowest IKR value was 7 bird species, each with 0.14% value. The conservation status of the 25 bird species based on IUCN is Least Concern (LC) and based on CITES there is one species that is included in Appendix II, namely Ictinaetus malayensis while based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia No. P.20 / MENLHK / SETJEN / KUM.1 / 6/2018 there is one bird species that is included in the protection, namely species Ictinaetus malayensis
{"title":"Bird Species Based on Tree Height Perched in the Liwa Botanical Garden, West Lampung Regency","authors":"Bagus Susilo Putra, M. Kanedi, N. Nurcahyani, G. N. Susanto","doi":"10.31258/jnat.20.1.9-14","DOIUrl":"https://doi.org/10.31258/jnat.20.1.9-14","url":null,"abstract":"Birds are one of the most diverse animals in the world, especially in Indonesia. Liwa Botanical Garden located in Pekon Kubu Perahu, Balik Bukit District, West Lampung Regency, is a conservation area with the theme of conservation and development of ornamental plants, representing the flora of Southern Sumatra. This research is a continuation of the collaboration between the Department of Biology and Balitbang UPTD Liwa Botanical Garden, West Lampung Regency. The presence of birds in the Liwa Botanical Garden is also a bioindicator of biodiversity for the environment in this area. By maintaining the presence of birds in the Liwa Botanical Garden means protecting their habitat and existing plants. The purpose of this study was to determine the species of birds based on the height of the perched trees in the Liwa Botanical Garden and the abundance of their species. The method used in this research is the point count with the observation time for 9 days in the morning and evening at the height of the tree in 3 different observation stations. Birds on KRL are mostly found on perches at an altitude of 2 - 7 meters, in the category of shrubs and trees, there are 19 out of 25 bird species found. The highest Relative Abundance Index (IKR) was Collocalia esculenta at 39.91% and the lowest IKR value was 7 bird species, each with 0.14% value. The conservation status of the 25 bird species based on IUCN is Least Concern (LC) and based on CITES there is one species that is included in Appendix II, namely Ictinaetus malayensis while based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia No. P.20 / MENLHK / SETJEN / KUM.1 / 6/2018 there is one bird species that is included in the protection, namely species Ictinaetus malayensis","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130465681","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}
Pub Date : 2022-04-12DOI: 10.31258/jnat.20.1.15-23
Arnis En Yulia, M. Khoiri, S. Yoseva, N. Nuraida
The research was aimed to see the effect interaction of giving tofu dregs compost and npk fertilizer to get the right dose towards growth and the highest production of purple eggplant. The research was conducted at Experimental Garden, Faculty of Agriculture, Riau University, Pekanbaru. The research was conducted for 5 months, from february to june 2020. The reasearch was conducted experimentally in 2 factors. The first factor was the of tofu waste compost consists of 3 levels (0, 10 and 20 ton.ha-1). The second factor was the of NPK fertilizer (0, 100 and 150 kg.ha-1) which consist of nine treatments combination. The observed parameterswere the height of the plant (cm), the days of flowering (days), the days of harvesting (days), the fruit length (cm), the fruit diameter (cm), the number of fruits per plant (fruit), the fruit weight per fruit (g), the fruit weight per plant (g) and the fruit weight with plot (g). The data in this research was analyzed in using variance and followed by Duncan's multiple distance test at 5% level. The results showed that tofu waste compost and NPK fertilizer increased the growth of eggplant such as the height of the plant, the days of flowering, the days of harvesting, the number of fruits per plant, the fruit length, the fruit weight per fruit, the fruit weight per plant and the fruit weight with plot and does not increase fruit diameter. The giving tofu waste compost at a dose 20 ton.ha-1 and NPK fertilizer 150 kg.ha-1 gave the best eggplant growth and production until the plants were 90 DAP
{"title":"The Effect of Tofu Dregs Compost and NPK Fertilizer the Growth and Production of Purple Eggplan (Solanum melongena L.)","authors":"Arnis En Yulia, M. Khoiri, S. Yoseva, N. Nuraida","doi":"10.31258/jnat.20.1.15-23","DOIUrl":"https://doi.org/10.31258/jnat.20.1.15-23","url":null,"abstract":"The research was aimed to see the effect interaction of giving tofu dregs compost and npk fertilizer to get the right dose towards growth and the highest production of purple eggplant. The research was conducted at Experimental Garden, Faculty of Agriculture, Riau University, Pekanbaru. The research was conducted for 5 months, from february to june 2020. The reasearch was conducted experimentally in 2 factors. The first factor was the of tofu waste compost consists of 3 levels (0, 10 and 20 ton.ha-1). The second factor was the of NPK fertilizer (0, 100 and 150 kg.ha-1) which consist of nine treatments combination. The observed parameterswere the height of the plant (cm), the days of flowering (days), the days of harvesting (days), the fruit length (cm), the fruit diameter (cm), the number of fruits per plant (fruit), the fruit weight per fruit (g), the fruit weight per plant (g) and the fruit weight with plot (g). The data in this research was analyzed in using variance and followed by Duncan's multiple distance test at 5% level. The results showed that tofu waste compost and NPK fertilizer increased the growth of eggplant such as the height of the plant, the days of flowering, the days of harvesting, the number of fruits per plant, the fruit length, the fruit weight per fruit, the fruit weight per plant and the fruit weight with plot and does not increase fruit diameter. The giving tofu waste compost at a dose 20 ton.ha-1 and NPK fertilizer 150 kg.ha-1 gave the best eggplant growth and production until the plants were 90 DAP","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132661047","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}
Pub Date : 2022-04-12DOI: 10.31258/jnat.20.1.30-34
R. Kurniawan, S. Wahyuni, Fitrian Armando
One of the plants that have the potential as antibacterial ingredients is Rhizophora apiculata leaf because it contains secondary metabolites, such as tannins, saponins, flavonoids, steroids, and terpenoids. This study aims to find out the inhibition of hot water extract of R. apiculata leaves in inhibiting the growth of Edwardsiella tarda. The research method used is an experimental method which includes sample preparation, extraction, antibacterial activity test using the Kirby-Bauer disc method and applying a Completely Randomized Design (CRD). The doses used were 100% (10000 ppm), 90% (9000 ppm), 80% (8000 ppm), 70% (7000 ppm), 60% (6000 ppm), 50% (5000 ppm), 40% (4000 ppm), 30% (3000 ppm), 20% (2000 ppm), 10% (1000 ppm) and control (Oxytetracycline). The results showed that the hot water extract of R. apiculata leaves at a dose of 1000-10000 ppm gave various inhibitory diameters ranging from 6.25-10.08 mm and the clear zone formed was classified as medium
{"title":"Inhibition Test of Hot Water Extract of Rhizophora apiculata Leaves Against Edwardsiella tarda Bacteria in-Vitro","authors":"R. Kurniawan, S. Wahyuni, Fitrian Armando","doi":"10.31258/jnat.20.1.30-34","DOIUrl":"https://doi.org/10.31258/jnat.20.1.30-34","url":null,"abstract":"One of the plants that have the potential as antibacterial ingredients is Rhizophora apiculata leaf because it contains secondary metabolites, such as tannins, saponins, flavonoids, steroids, and terpenoids. This study aims to find out the inhibition of hot water extract of R. apiculata leaves in inhibiting the growth of Edwardsiella tarda. The research method used is an experimental method which includes sample preparation, extraction, antibacterial activity test using the Kirby-Bauer disc method and applying a Completely Randomized Design (CRD). The doses used were 100% (10000 ppm), 90% (9000 ppm), 80% (8000 ppm), 70% (7000 ppm), 60% (6000 ppm), 50% (5000 ppm), 40% (4000 ppm), 30% (3000 ppm), 20% (2000 ppm), 10% (1000 ppm) and control (Oxytetracycline). The results showed that the hot water extract of R. apiculata leaves at a dose of 1000-10000 ppm gave various inhibitory diameters ranging from 6.25-10.08 mm and the clear zone formed was classified as medium","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114616806","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}
This study aims to determine the best dose of propolis to treat Carassius auratus infected with Aeromonas hydrophila seen leucocyte differentiation from C.auratus. The method used was experimental method with Completely Randomized Design (CDR) with one factor consisting of five treatment levels and three replications. The treatment was Kn (not infected with A. hydrophila and untreated propolis), Kp (infected with A. hydrophila but not treated with propolis), and fish infected with A. hydrophila treated propolis with dose P1 (700 ppm), P2 (800 ppm), and P3 (900 ppm). Treatment is done by injection of propolis in fish infected by A. hydrophila in intramuscular. The fish used are 8-10 cm in size and kept for 14 days post-infection. The results showed that propolis solution has been able to treat C. auratus from infected A. hydrophila. The dose of propolis 800 ppm is the best dose to treat C. auratus infected A.hydrophila, seen from leukocyte differentiation (lymphocyte 80,25%, monocytes 10,09% and neutrophils 9,66%).
{"title":"Leukocytes Differentiation of Goldfish (Carassius auratus) Infected with Aeromonas hydrophila Bacteria and Post-treatment with Propolis Solution","authors":"M. Riswan, I. Lukistyowati, Henni Syawal","doi":"10.31258/jnat.19.1.6-12","DOIUrl":"https://doi.org/10.31258/jnat.19.1.6-12","url":null,"abstract":"This study aims to determine the best dose of propolis to treat Carassius auratus infected with Aeromonas hydrophila seen leucocyte differentiation from C.auratus. The method used was experimental method with Completely Randomized Design (CDR) with one factor consisting of five treatment levels and three replications. The treatment was Kn (not infected with A. hydrophila and untreated propolis), Kp (infected with A. hydrophila but not treated with propolis), and fish infected with A. hydrophila treated propolis with dose P1 (700 ppm), P2 (800 ppm), and P3 (900 ppm). Treatment is done by injection of propolis in fish infected by A. hydrophila in intramuscular. The fish used are 8-10 cm in size and kept for 14 days post-infection. The results showed that propolis solution has been able to treat C. auratus from infected A. hydrophila. The dose of propolis 800 ppm is the best dose to treat C. auratus infected A.hydrophila, seen from leukocyte differentiation (lymphocyte 80,25%, monocytes 10,09% and neutrophils 9,66%).","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"42 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129155650","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}
Pub Date : 2022-03-15DOI: 10.31258/jnat.19.2.37-42
Ichwanul Harif, A. Tanjung, E. Elizal
This study aims to determine the abundance and distribution pattern of gastropods in the intertidal bay, Kambang Lengayang District, Pesisir Selatan Regency, West Sumatra. The benefits of this research are expected to be a reference or information for further research in Kambang Bay which in the end is expected to minimize the adverse effects of gastropod hunting. The research method used in this study is a survey method, namely direct observation and sampling which is divided into 3 stations where the sampling station 1 is taking in the coastal waters of the bay in an area where there is no community activity, station 2 is taking in the waters of the bay in the fishing trawl area. station 3 taking in the coastal waters of Kambang in the reclamation area. Based on the analysis of organic sedimentary material in the study area, the average value was obtained at station 1 (3.55%), station 2 (4.20%) and station 3 (3.33%). Based on the analysis, the sediment fraction that dominates each station is sand. The gastropods found at the study site were Clypeomorus bifasciata, Littoraria scabra and Cerithulata cingulata. The abundance of gastropods in the coastal waters of Kambang ranged from 2.33 to 5.00 Ind/m2. The results of the ANOVA test showed that the abundance of gastropods in the bay waters showed 0.214 beaches, indicating that the difference in abundance between stations was not significant. The gastropod pattern found at the study site is generally in groups.
{"title":"Abundance and Distribution Patterns of Gastropods in the Intertidal Bay of Kambang Lengayang Sub-District, Southern Coastal District, West Sumatera","authors":"Ichwanul Harif, A. Tanjung, E. Elizal","doi":"10.31258/jnat.19.2.37-42","DOIUrl":"https://doi.org/10.31258/jnat.19.2.37-42","url":null,"abstract":"This study aims to determine the abundance and distribution pattern of gastropods in the intertidal bay, Kambang Lengayang District, Pesisir Selatan Regency, West Sumatra. The benefits of this research are expected to be a reference or information for further research in Kambang Bay which in the end is expected to minimize the adverse effects of gastropod hunting. The research method used in this study is a survey method, namely direct observation and sampling which is divided into 3 stations where the sampling station 1 is taking in the coastal waters of the bay in an area where there is no community activity, station 2 is taking in the waters of the bay in the fishing trawl area. station 3 taking in the coastal waters of Kambang in the reclamation area. Based on the analysis of organic sedimentary material in the study area, the average value was obtained at station 1 (3.55%), station 2 (4.20%) and station 3 (3.33%). Based on the analysis, the sediment fraction that dominates each station is sand. The gastropods found at the study site were Clypeomorus bifasciata, Littoraria scabra and Cerithulata cingulata. The abundance of gastropods in the coastal waters of Kambang ranged from 2.33 to 5.00 Ind/m2. The results of the ANOVA test showed that the abundance of gastropods in the bay waters showed 0.214 beaches, indicating that the difference in abundance between stations was not significant. The gastropod pattern found at the study site is generally in groups.","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122909836","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}
Pub Date : 2022-03-15DOI: 10.31258/jnat.19.2.51-56
Ridwan Saiful Basri Pasaribu, S. Nedi, E. Elizal
The study was conducted from March to May 2021 which aims to identify the types, abundance of microplastics and compare the abundance of microplastics between stations in the waters of the Long Strait of High Cliff Subdistrict. Survey methods are applied and PVC pipes are used to collect sediment samples from three different stations with three sampling points at each station. The types of microplastics found are fragments with the most jumblah with film and fiber. The most widely found types are fragments, followed by film and fiber. The abundance of microplastics at Tanjung Harapan Port (5900.00 partkels /kg of dry sediment) is higher than the mouth of the Dorak coastal river (5306.67 partkels/kg of dry sediment) and Banglas Village Mangrove Ecotourism (4120.00 partikels/kg of dry sediment). The results showed that the abundance of microplastics between stations differed significantly. Microplastic differences based on further independent test samples t-test showed that each station compared to mangrove ecotourism area will be significantly different, while between Tanjung Harapan Port and the mouth of the Dorak coastal river showed no significant difference
{"title":"Analysis of Microplastics on Sediments in the Waters of Selat Panjang of Tebing Tinggi Subdistrict, Meranti Islands Regency, Riau Province","authors":"Ridwan Saiful Basri Pasaribu, S. Nedi, E. Elizal","doi":"10.31258/jnat.19.2.51-56","DOIUrl":"https://doi.org/10.31258/jnat.19.2.51-56","url":null,"abstract":"The study was conducted from March to May 2021 which aims to identify the types, abundance of microplastics and compare the abundance of microplastics between stations in the waters of the Long Strait of High Cliff Subdistrict. Survey methods are applied and PVC pipes are used to collect sediment samples from three different stations with three sampling points at each station. The types of microplastics found are fragments with the most jumblah with film and fiber. The most widely found types are fragments, followed by film and fiber. The abundance of microplastics at Tanjung Harapan Port (5900.00 partkels /kg of dry sediment) is higher than the mouth of the Dorak coastal river (5306.67 partkels/kg of dry sediment) and Banglas Village Mangrove Ecotourism (4120.00 partikels/kg of dry sediment). The results showed that the abundance of microplastics between stations differed significantly. Microplastic differences based on further independent test samples t-test showed that each station compared to mangrove ecotourism area will be significantly different, while between Tanjung Harapan Port and the mouth of the Dorak coastal river showed no significant difference","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130645939","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}
Pub Date : 2022-03-15DOI: 10.31258/jnat.19.2.43-50
Tri Vani Bernadetha Ginting, S. Nasution, I. Effendi
Rupat Strait related to the Strait of Malacca is a national and international shipping lane and makes the region affected by anthropogenic activities that result in a decrease in the quality of the waters such as the increasing amount of heavy metal content. The most easily contaminated organism of heavy metals is bivalves due to and its low mobility, bivalves being filter feeders, and the ability to accumulate contaminants,. The purpose of this study was to look at genetic changes in bivalves (P.acutidens) contaminated by heavy metals. The study was conducted from February to March 2021. Bivalve sample was collected from the waters of Rupat Strait and sample analysis was conducted in the Marine Biology Laboratory and Genetics Laboratory of Riau University. Bivalve DNA is isolated with Geneaid Tissue Genomic DNA Mini Kit. DNA isolation results were then carried out PCR process and sequencing process was carried out in PT. Genetika Science Indonesia. The results of study show that sequencing results obtained by samples derived from Selinsing have the most changes in the composition of nitrogen bases compared to samples from the other two stations.
{"title":"Genetic Change of Pharella acutidens Influenced by Pb and Cd Metals in Rupat Strait Waters","authors":"Tri Vani Bernadetha Ginting, S. Nasution, I. Effendi","doi":"10.31258/jnat.19.2.43-50","DOIUrl":"https://doi.org/10.31258/jnat.19.2.43-50","url":null,"abstract":"Rupat Strait related to the Strait of Malacca is a national and international shipping lane and makes the region affected by anthropogenic activities that result in a decrease in the quality of the waters such as the increasing amount of heavy metal content. The most easily contaminated organism of heavy metals is bivalves due to and its low mobility, bivalves being filter feeders, and the ability to accumulate contaminants,. The purpose of this study was to look at genetic changes in bivalves (P.acutidens) contaminated by heavy metals. The study was conducted from February to March 2021. Bivalve sample was collected from the waters of Rupat Strait and sample analysis was conducted in the Marine Biology Laboratory and Genetics Laboratory of Riau University. Bivalve DNA is isolated with Geneaid Tissue Genomic DNA Mini Kit. DNA isolation results were then carried out PCR process and sequencing process was carried out in PT. Genetika Science Indonesia. The results of study show that sequencing results obtained by samples derived from Selinsing have the most changes in the composition of nitrogen bases compared to samples from the other two stations.","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127230241","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}
Pub Date : 2022-03-15DOI: 10.31258/jnat.19.2.57-64
Wili Heriko, Tri Nopsagiarti, A. Permana
This research has been carried out in Kedundung Island Village, Central Kuantan District, Kuantan Singingi Regency. This research takes place for approximately four months starting from November 2017 until March 2018. This study aims to determine the effect of Tofu Liquid Waste as Liquid Organic Fertilizer on Plants and Production of Paddy Rice (Oriza sativa L). The parameters observed in this study include: plant height, age of flowering, age of harvest, number of productive tillers, and dry grain weight. This study aims to determine the effect of Tofu Liquid Waste as Organic Fertilizer on the Growth and Production of Rice Field Crops. The design used in this study is a Non Factorial Randomized Block Design (RBD) consisting of one factor, namely factor A (Tofu Liquid Waste) consisting of 4 levels: A0 (control), A1 (600 mL/plot), A2 (1200 mL/plot), A3 (1800 mL/plot). The observational data from each treatment were statistically analyzed and continued with the Next Test of Honestly Significant Difference at the 5% level. The results showed that the Tofu Liquid Waste treatment had a significant influence on the parameters of observation of Plant Height, Flowering Age, Harvest Age, Number of Productive Tillers and Dry Grain Weight. The best treatments were A3 for observation of Plant Height (124.91 cm), Flowering Age (73.99 days), Harvest Age (95.74 days), Number of Productive Tillers (50.91 stems), and Dry Grain Weight (100.16 g)
{"title":"Utilization of Tofu Liquid Waste as Organic Fertilizer on the Growth and Production of Paddy Rice Plants (Oryza sativa L)","authors":"Wili Heriko, Tri Nopsagiarti, A. Permana","doi":"10.31258/jnat.19.2.57-64","DOIUrl":"https://doi.org/10.31258/jnat.19.2.57-64","url":null,"abstract":"This research has been carried out in Kedundung Island Village, Central Kuantan District, Kuantan Singingi Regency. This research takes place for approximately four months starting from November 2017 until March 2018. This study aims to determine the effect of Tofu Liquid Waste as Liquid Organic Fertilizer on Plants and Production of Paddy Rice (Oriza sativa L). The parameters observed in this study include: plant height, age of flowering, age of harvest, number of productive tillers, and dry grain weight. This study aims to determine the effect of Tofu Liquid Waste as Organic Fertilizer on the Growth and Production of Rice Field Crops. The design used in this study is a Non Factorial Randomized Block Design (RBD) consisting of one factor, namely factor A (Tofu Liquid Waste) consisting of 4 levels: A0 (control), A1 (600 mL/plot), A2 (1200 mL/plot), A3 (1800 mL/plot). The observational data from each treatment were statistically analyzed and continued with the Next Test of Honestly Significant Difference at the 5% level. The results showed that the Tofu Liquid Waste treatment had a significant influence on the parameters of observation of Plant Height, Flowering Age, Harvest Age, Number of Productive Tillers and Dry Grain Weight. The best treatments were A3 for observation of Plant Height (124.91 cm), Flowering Age (73.99 days), Harvest Age (95.74 days), Number of Productive Tillers (50.91 stems), and Dry Grain Weight (100.16 g)","PeriodicalId":404489,"journal":{"name":"Jurnal Natur Indonesia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131127912","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}
Pub Date : 2021-10-15DOI: 10.31258/jnat.19.2.29-36
Indra Wariski, Y. Siregar, B. Amin
This research was carried out in March 2021 to analyze the heavy metal content of Pb and Cu in the sediment and flesh of the horn shell (Cerithidea obtusa). Sediment samples and horn shells were taken from the coastal waters of Panipahan, Panipahan Village, and Teluk Pulai Village, Rokan Hilir Regency, Riau Province. The method used in this research is a survey method. Sampling was determined by using purposive sampling at three different stations. The results of this study showed that the metal content of Pb and Cu was highest in sediments around residential areas (44.7150 g/g and 104.4200 g/g), while the horn shell was found in areas far from anthropogenic activities (2.4717 g/g and 8.6617 g/g). Differences in the metal content of Pb and Cu in the sediments were found between stations, while for horn shells there was no difference between stations. The metal content of Pb in the sediment did not show a significant effect (F < 0.05) Pb content in horn shells, as well as Cu. The results of the calculation of the PTWI (Provisional Tolerable Weekly Intake) value indicated that the horn shell in the waters is acceptable for consumption
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