Pub Date : 2021-08-04DOI: 10.30821/KFL:JIBT.V5I1.9643
Rahmadina Rahmadina
This study aims to determine the types of mushrooms, mushroom identification methods, the benefits of mushrooms, and how to collect mushrooms which was carried out from August to November 2019 at the Berastagi Forest Park (TAHURA), Karo Regency, North Sumatra. The sampling site was taken towards the North where the typography of the field is partly flat, steep and hilly with an air temperature of 23°C. Geographically, this Forest Park is located at 001'16"-019"32 North Latitude and 9812'16"- 9841'00" East Longitude. The method used is the Cruise Method or the method of cruising as far as 1 Km. Based on the results of research that has been carried out, it was found that 5 macroscopic mushroom families were Pythiaceae, Marasmiaceae, Ganodermataceae, Coprinaceae, Polyporaceae and 11 species of macroscopic fungi namely, Pythya vulgaris, Trametes versicolor, Ganoderma sp1, Ganoderma sp2, Ganoderma sp3, Marasmius siccus, Coprinus sp1, Coprinus sp2, Coprinus sp3, Laetiporus sp. The benefits of mushrooms in Trametes versicolor can be used for the treatment of HIV. Marasmius siccus is an edible mushroom species. Coprinus sp, a type of fungus used as an antioxidant and 6 species of macroscopic fungi that are toxic (poisonous), namely Pythya vulgaris, Ganoderma sp1, Ganoderma sp2, Ganoderma sp3, Laetiporus sp. Macroscopic mushrooms were collected by cutting the base of the fruit stem. Keywords: Inventory, Mushrooms, Berastagi Forest Park.
{"title":"INVENTARISASI JAMUR DI TAMAN HUTAN RAYA (TAHURA) BERASTAGI KABUPATEN KARO, SUMATERA UTARA","authors":"Rahmadina Rahmadina","doi":"10.30821/KFL:JIBT.V5I1.9643","DOIUrl":"https://doi.org/10.30821/KFL:JIBT.V5I1.9643","url":null,"abstract":"This study aims to determine the types of mushrooms, mushroom identification methods, the benefits of mushrooms, and how to collect mushrooms which was carried out from August to November 2019 at the Berastagi Forest Park (TAHURA), Karo Regency, North Sumatra. The sampling site was taken towards the North where the typography of the field is partly flat, steep and hilly with an air temperature of 23°C. Geographically, this Forest Park is located at 001'16\"-019\"32 North Latitude and 9812'16\"- 9841'00\" East Longitude. The method used is the Cruise Method or the method of cruising as far as 1 Km. Based on the results of research that has been carried out, it was found that 5 macroscopic mushroom families were Pythiaceae, Marasmiaceae, Ganodermataceae, Coprinaceae, Polyporaceae and 11 species of macroscopic fungi namely, Pythya vulgaris, Trametes versicolor, Ganoderma sp1, Ganoderma sp2, Ganoderma sp3, Marasmius siccus, Coprinus sp1, Coprinus sp2, Coprinus sp3, Laetiporus sp. The benefits of mushrooms in Trametes versicolor can be used for the treatment of HIV. Marasmius siccus is an edible mushroom species. Coprinus sp, a type of fungus used as an antioxidant and 6 species of macroscopic fungi that are toxic (poisonous), namely Pythya vulgaris, Ganoderma sp1, Ganoderma sp2, Ganoderma sp3, Laetiporus sp. Macroscopic mushrooms were collected by cutting the base of the fruit stem. Keywords: Inventory, Mushrooms, Berastagi Forest Park.","PeriodicalId":142864,"journal":{"name":"KLOROFIL: Jurnal Ilmu Biologi dan Terapan","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123006759","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}
Lianas are a unique group of climbing plant species that are characteristic of tropical rainforests. This species has important ecological and economic value. This study aims to find out information about the composition and structure and diversity index of lianas. The research method used is a quadratic method with 10 plots laid out by purposive sampling. The results showed that the composition of lianas consisted of 22 families, 31 species and 414 individuals. The highest Importance Value Index in Amydrium humile Schott (INP 23, 145%), where as liana species with the lowest of Value index was Stephania sp. (INP 2, 343%). The diversity index of lianas is in the medium category, with the H’ 2.965.
{"title":"ANALISIS VEGETASI TUMBUHAN LIANA DI GUNUNG SIBUATAN DESA NAGALINGGA KECAMATAN MEREK KABUPATEN KARO SUMATERA UTARA","authors":"Edty Widya Ningsih Harahap, Kartika Manalu, Melfa Aisyah Hutasuhut","doi":"10.30821/KFL:JIBT.V5I1.9400","DOIUrl":"https://doi.org/10.30821/KFL:JIBT.V5I1.9400","url":null,"abstract":"Lianas are a unique group of climbing plant species that are characteristic of tropical rainforests. This species has important ecological and economic value. This study aims to find out information about the composition and structure and diversity index of lianas. The research method used is a quadratic method with 10 plots laid out by purposive sampling. The results showed that the composition of lianas consisted of 22 families, 31 species and 414 individuals. The highest Importance Value Index in Amydrium humile Schott (INP 23, 145%), where as liana species with the lowest of Value index was Stephania sp. (INP 2, 343%). The diversity index of lianas is in the medium category, with the H’ 2.965.","PeriodicalId":142864,"journal":{"name":"KLOROFIL: Jurnal Ilmu Biologi dan Terapan","volume":"275 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122625425","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 : 2021-06-08DOI: 10.30821/KFL:JIBT.V3I2.9014
R. Rahmadina, Novia Anggreyni BATU BARA
Feed is one factor that can support the development of fish farming is intensive and semi-intensive, both freshwater fish, brackish water fish, and sea water fish. While the feed required by the fish since the start of the size of the larvae (fry), up to the size of the parent. However, the feeding of the fish also can be creation to maximize growth. Fish growth is strongly influenced by the quality of the feed and therefore the need to do research, causes of a different kind of feed to seed the growth hormone of catfish. Here the research I did was observe the ratio of the growth rate of catfish that I give a different feed types among which the pellets, the remains of fish and leaves. The research of method used in this study is a quantitative method that is located in the home. And the observation time that I did was for 9 weeks. It turned out that the results shown by the fastest growth in the given fish feed pellets.
{"title":"COMPARISON OF GROWTH RATE OF THREE CATFISH (Pangasius Hypopthalmus) WITH DIFFERENT KINDS OF FEED","authors":"R. Rahmadina, Novia Anggreyni BATU BARA","doi":"10.30821/KFL:JIBT.V3I2.9014","DOIUrl":"https://doi.org/10.30821/KFL:JIBT.V3I2.9014","url":null,"abstract":"Feed is one factor that can support the development of fish farming is intensive and semi-intensive, both freshwater fish, brackish water fish, and sea water fish. While the feed required by the fish since the start of the size of the larvae (fry), up to the size of the parent. However, the feeding of the fish also can be creation to maximize growth. Fish growth is strongly influenced by the quality of the feed and therefore the need to do research, causes of a different kind of feed to seed the growth hormone of catfish. Here the research I did was observe the ratio of the growth rate of catfish that I give a different feed types among which the pellets, the remains of fish and leaves. The research of method used in this study is a quantitative method that is located in the home. And the observation time that I did was for 9 weeks. It turned out that the results shown by the fastest growth in the given fish feed pellets.","PeriodicalId":142864,"journal":{"name":"KLOROFIL: Jurnal Ilmu Biologi dan Terapan","volume":"386 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122353748","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 : 2021-06-08DOI: 10.30821/KFL:JIBT.V5I1.9273
Ayu Syufiatun Br Tarigan
This study aims to isolate nanocellulose from oil palm emptry fruit bunches (OPEFB) using acid hydrolysis method. Hydrolysis was carried out for 2 hours using 10% HCl and followed by centrifugation, ultrasonication and dialysis using a semipermeable membrane. The results obtained were tested by FT-IR, and it was found that there was a -OH functional group at a wavenumber between 3000-3500 cm-1, a C-H group in the area 2850-3000 cm-1, -CH2 bending at a wavenumber 1330-1465 cm-1 and the CO group at wave numbers 1000-1100 cm-1. This indicates that the product is in the form of cellulose. The particle size distribution of cellulose was tested with a PSA (Particle Size Analyzer) and the nanocellulose was about 7.2 nm in size.
{"title":"ISOLASI NANOSELULOSA DARI TANDAN KOSONG SAWIT MENGGUNAKAN HIDROLISIS ASAM SEBAGAI MATERIAL BIOMEDIS","authors":"Ayu Syufiatun Br Tarigan","doi":"10.30821/KFL:JIBT.V5I1.9273","DOIUrl":"https://doi.org/10.30821/KFL:JIBT.V5I1.9273","url":null,"abstract":"This study aims to isolate nanocellulose from oil palm emptry fruit bunches (OPEFB) using acid hydrolysis method. Hydrolysis was carried out for 2 hours using 10% HCl and followed by centrifugation, ultrasonication and dialysis using a semipermeable membrane. The results obtained were tested by FT-IR, and it was found that there was a -OH functional group at a wavenumber between 3000-3500 cm-1, a C-H group in the area 2850-3000 cm-1, -CH2 bending at a wavenumber 1330-1465 cm-1 and the CO group at wave numbers 1000-1100 cm-1. This indicates that the product is in the form of cellulose. The particle size distribution of cellulose was tested with a PSA (Particle Size Analyzer) and the nanocellulose was about 7.2 nm in size.","PeriodicalId":142864,"journal":{"name":"KLOROFIL: Jurnal Ilmu Biologi dan Terapan","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114234253","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 : 2021-03-15DOI: 10.30821/KFL:JIBT.V4I2.8976
Marliana Marliana, Ulfayani Mayasari
One of the plants that can be used as medicine is Wuluh starfruit (Averrhoa bilimbi L.). Starfruit fruit has antipyretic, antiseptic, anti-inflammatory properties, treats coughs and treats rashes. Wuluh starfruit (Averrhoa bilimbi L.) contains chemical compounds of flavonoids, saponins, alkaloids, and tannins. This study aims to determine the anti-fungal inhibition of star fruit (Averrhoa bilimbi L.) on the growth of Pityrosporum ovale which causes dandruff. The method used to obtain the extract of starfruit (Averrhoa bilimbi L.) through a maceration process using ethanol 96% solvent. The anti-fungal inhibition test used the agar diffusion method by sticking disc paper on the media that had been grown by the fungus Pityrosporum ovale. The results of phytochemical screening showed that the fruit of starfruit (Averrhoa bilimbi L.) contained flavonoid, alkaloid, tannin and saponin compounds. The resulting inhibitory power was indicated by the formation of a clear zone at each concentration of 20%, 40%, 60%, 80%, and as a comparison, a positive control of 10% ketonazole was made. The average diameter obtained was 6.26 mm, 7.09 mm, 7.57 mm, 8.07 mm, and 17.29 mm. Based on the results of the study, it was concluded that the extract of starfruit (Averrhoa bilimbi L.) had an inhibitory power against the growth of Pityrosporum ovale.
{"title":"UJI DAYA HAMBAT ANTIJAMUR BUAH BELIMBING WULUH (Averrhoa bilimbi L.) TERHADAP PERTUMBUHAN Pityrosporum ovale PENYEBAB KETOMBE","authors":"Marliana Marliana, Ulfayani Mayasari","doi":"10.30821/KFL:JIBT.V4I2.8976","DOIUrl":"https://doi.org/10.30821/KFL:JIBT.V4I2.8976","url":null,"abstract":"One of the plants that can be used as medicine is Wuluh starfruit (Averrhoa bilimbi L.). Starfruit fruit has antipyretic, antiseptic, anti-inflammatory properties, treats coughs and treats rashes. Wuluh starfruit (Averrhoa bilimbi L.) contains chemical compounds of flavonoids, saponins, alkaloids, and tannins. This study aims to determine the anti-fungal inhibition of star fruit (Averrhoa bilimbi L.) on the growth of Pityrosporum ovale which causes dandruff. The method used to obtain the extract of starfruit (Averrhoa bilimbi L.) through a maceration process using ethanol 96% solvent. The anti-fungal inhibition test used the agar diffusion method by sticking disc paper on the media that had been grown by the fungus Pityrosporum ovale. The results of phytochemical screening showed that the fruit of starfruit (Averrhoa bilimbi L.) contained flavonoid, alkaloid, tannin and saponin compounds. The resulting inhibitory power was indicated by the formation of a clear zone at each concentration of 20%, 40%, 60%, 80%, and as a comparison, a positive control of 10% ketonazole was made. The average diameter obtained was 6.26 mm, 7.09 mm, 7.57 mm, 8.07 mm, and 17.29 mm. Based on the results of the study, it was concluded that the extract of starfruit (Averrhoa bilimbi L.) had an inhibitory power against the growth of Pityrosporum ovale.","PeriodicalId":142864,"journal":{"name":"KLOROFIL: Jurnal Ilmu Biologi dan Terapan","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132439169","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 : 2021-03-05DOI: 10.30821/KFL:JIBT.V4I1.8921
Miza Nina Adlini, Hafizah Khairina Umaroh
Citrus is one of the horticultural plants found in Indonesia and is in great demand. The diversity of oranges is very high as indicated by the number of Citrus members. North Sumatra is one of the province with high citrus productivity. Therefore, this study aims to identify the diversity of citrus plants based on their morphological characters in Nibung Hangus area, Batu Bara, North Sumatra. Data were collected by exploration method. Morphological identification is carried out to assess the morphological diversity of samples taken at the study site, including visual observations of the size, shape and color of plant organ parts. The organs observed included the stems, leaves and fruit of citrus plants. Morphological characterization using the guidelines in IPGRI and the book of Tjitrosoepomo (2002). The data analysis was carried out in a descriptive qualitative. The results showed that there were 5 types of citrus plants found in Nibung Hangus, namely Pamelo Plant (Citrus maxima), Lime Plant (Citrus aurantifolia), Tangerine Plant (Citrus reticulata blanco), Kaffir Lime Plant (Citrus hystrix), and Sunkist Citrus Crop (Citrus sinensis).
{"title":"KARAKTERISASI TANAMAN JERUK (Citrus sp.) DI KECAMATAN NIBUNG HANGUS KABUPATEN BATU BARA SUMATERA UTARA","authors":"Miza Nina Adlini, Hafizah Khairina Umaroh","doi":"10.30821/KFL:JIBT.V4I1.8921","DOIUrl":"https://doi.org/10.30821/KFL:JIBT.V4I1.8921","url":null,"abstract":"Citrus is one of the horticultural plants found in Indonesia and is in great demand. The diversity of oranges is very high as indicated by the number of Citrus members. North Sumatra is one of the province with high citrus productivity. Therefore, this study aims to identify the diversity of citrus plants based on their morphological characters in Nibung Hangus area, Batu Bara, North Sumatra. Data were collected by exploration method. Morphological identification is carried out to assess the morphological diversity of samples taken at the study site, including visual observations of the size, shape and color of plant organ parts. The organs observed included the stems, leaves and fruit of citrus plants. Morphological characterization using the guidelines in IPGRI and the book of Tjitrosoepomo (2002). The data analysis was carried out in a descriptive qualitative. The results showed that there were 5 types of citrus plants found in Nibung Hangus, namely Pamelo Plant (Citrus maxima), Lime Plant (Citrus aurantifolia), Tangerine Plant (Citrus reticulata blanco), Kaffir Lime Plant (Citrus hystrix), and Sunkist Citrus Crop (Citrus sinensis).","PeriodicalId":142864,"journal":{"name":"KLOROFIL: Jurnal Ilmu Biologi dan Terapan","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116784402","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 : 2021-03-05DOI: 10.30821/KFL:JIBT.V4I2.8974
Mawar Simahate, Rahmadina Rahmadina
Arumanis mango syrup is a thick juice produced from the flesh of the mango fruit arummanis with the addition of liquid sugar as a natural preservative to maintain durability save syrup. This research aims to know the concentration of sugar with a variation of different sugars can provide durability syrup mango fruit is longer. This type of research is research using the method of experimentation with proven influence durability save syrup fruit mango arummanis with 40% sugar, sugar 50%, 60%, 70%. The result showed that the concentration of sugar in the variation of 40% have staying power save syrup fruit mango fruit mango is low, i.e., on the 7th day already moldy syrup, sugar concentration at 50% also already moldy on day 8. Note that the concentration of sugar in the variation of 40% and 50% have a staying power save syrup mango fruit is lower, at 60% and sugar concentration of 70% have good conditions until the day to 27. This suggests that the higher the concentration of sugar then endurance save syrup mangoes will be increasingly long.
{"title":"PENGARUH PEMBERIAN KONSENTRASI GULA TERHADAP DAYA TAHAN SIMPAN SIRUP MANGGA ARUMANIS","authors":"Mawar Simahate, Rahmadina Rahmadina","doi":"10.30821/KFL:JIBT.V4I2.8974","DOIUrl":"https://doi.org/10.30821/KFL:JIBT.V4I2.8974","url":null,"abstract":"Arumanis mango syrup is a thick juice produced from the flesh of the mango fruit arummanis with the addition of liquid sugar as a natural preservative to maintain durability save syrup. This research aims to know the concentration of sugar with a variation of different sugars can provide durability syrup mango fruit is longer. This type of research is research using the method of experimentation with proven influence durability save syrup fruit mango arummanis with 40% sugar, sugar 50%, 60%, 70%. The result showed that the concentration of sugar in the variation of 40% have staying power save syrup fruit mango fruit mango is low, i.e., on the 7th day already moldy syrup, sugar concentration at 50% also already moldy on day 8. Note that the concentration of sugar in the variation of 40% and 50% have a staying power save syrup mango fruit is lower, at 60% and sugar concentration of 70% have good conditions until the day to 27. This suggests that the higher the concentration of sugar then endurance save syrup mangoes will be increasingly long.","PeriodicalId":142864,"journal":{"name":"KLOROFIL: Jurnal Ilmu Biologi dan Terapan","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125514979","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 : 2021-03-04DOI: 10.30821/KFL:JIBT.V4I2.8786
Nurul Huda Panggabean
Kelapa sawit di Indonesia dewasa ini merupakan komoditas primadona. Perkecambahan benih kelapa sawit memerlukan waktu yang lama untuk berkecambah yaitu 3 - 4 bulan karena adanya mekanisme dormansi pada benih. Lamanya waktu perkecambahan merupakan suatu kendala bagi konsumen dan produsen benih. Umumnya perlakuan pematahan dormansi diberikan secara fisik, seperti skarifikasi mekanik dan kimiawi. Giberelin merupakan salah satu zat pengatur tumbuh yang sering digunakan dalam memnbantu pematahan biji. Giberelin mengaktifkan enzim hidrolitik yang berperan dalam pemecahan cadangan makanan di dalam benih. Adapun tujuan dari penelitian ini adalah untuk mengetahui proses pematahan dormansi benih kelapa sawit (Elaeis guineensis Jacq.) dengan metode skarifikasi dan konsentrasi giberelin yang sesuai dan mengetahuai adanya interaksi nyata dalam penggunaan metode skarifikasi dan giberelin dalam membantu mematahkan dormansi benih kelapa sawit (Elaeis guineensis Jacq.). Penelitian ini dilaksanakan mulai bulan Juni hingga september 2020 di Laboratorium Fisiologi Tumbuhan Universitas Sumatera Utara, Bahan yang digunakan yaitu biji kelapa sawit varietas Tenera yang diambil dari perkebunan rakyat daerah Deli Serdang, Sumatera Utara. Penelitian ini menggunakan RAL (Rancangan Acak Lengkap) dengan 2 faktor yaitu letak buah pada tandan yaitu Apikal (A), Median (M) dan Basal (B) dan Konsentrasi Giberelin yaitu G0 (0 ppm), G1 (200 ppm), G2 (300 ppm) dan G3 (400 ppm). Berdasarkan hasil yang diperoleh menunjukan bahwa posisi benih pada tandan dan konsentrasi giberelin yang diberikan memberikan pengaruh yang nyata terhadap daya berkecambah (DB) dimana pada perlakuan G3 menunjukan persentase benih berkecambah 36,67% dan kontrol 6,67%. Rata – rata persentase embrio normal yang masih belum berkecambah terdapat pada kontrol (G0) hal ini dikarenakan hormon giberelin berpengaruh terhadap proses perkecambahan benih. Hasil penelitian juga menunjukkan persentase terkecil pada intensitas dormansi terdapat pada G3 yaitu 81,11% dan pada bagian apikal 77,5%. Hasil ini menunjukkan bahwa perlakuan skarifikasi dan giberelin yang sebelumnya juga diberikan perendaman dalam air panas efektif untuk pematahan dormansi benih kelapa sawit. Rata – rata PTM terdapat pada konsentrasi giberelin 400 ppm sebesar 26,67% dan terdapat pada bagian apikal, namun konsentrasi giberelin tidak berpengaruh nyata terhadap potensi tumbuh maksimum. Metode pematahan dormansi benih dengan skrafiksai dan perendaman dalam giberelin memberikan pengaruh yang nyata terhadap daya berkecambah, embrio normal dan intensitas dormansi namun tidak berpengaruh nyata terhadap potensi tumbuh maksimum. Pertumbuhan terbaik benih berasal bagian apikal dari tandan kelapa sawit.Kata Kunci : Pematahan Dormansi, Skarifikasi, Giberelin, Kelapa Sawit
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Pub Date : 2021-03-04DOI: 10.30821/KFL:JIBT.V4I2.8884
Sofiana Gultom, Kartika Manalu, E. Tambunan
This study aims to determine the type, abundance, and frequency of dragonflies (Odonata) in the Lake Sicikeh-cikeh Nature Tourism Park, Lae Hole Village, Parbuluan District, North Sumatra Province. This research was conducted in November 2019. This research used the Exploration method. Observations were made at three stations. Data obtained from the field are processed manually, after the data is collected, processed, then presented in the form of a table and described descriptively. The results showed an abundance of dragonflies in Lake Sicikeh-Cikeh Nature Tourism Park categorized as moderate diversity. The highest abundance of dragonflies is found in the species of Neurothemis fluctuans Fabricius with a relative abundance of 37.17%. The highest relative frequency is found in species of Pseudagrion microcephalum Rambur, Neurothemis fluctuans Fabricius, and Rhodothemis rufa Rambur with a relative abundance value of 15%.Keywords: diversity, dragonflies, lake sicikeh-cikeh nature tourism park
本研究旨在了解北苏门答腊省Parbuluan区Lae Hole村Sicikeh-cikeh湖自然旅游公园蜻蜓(Odonata)的种类、丰度和频率。这项研究是在2019年11月进行的。本研究采用了探索性研究方法。在三个站点进行了观测。从字段中获得的数据是手工处理的，在数据被收集、处理后，然后以表的形式呈现并进行描述性描述。结果表明:西克湖-西克湖自然旅游公园蜻蜓丰富度为中等。蜻蜓的相对丰度最高的是Neurothemis ans Fabricius，相对丰度为37.17%。小头假丝藻(Pseudagrion microcephalum Rambur)、fabicius和Rhodothemis rufa Rambur的相对丰度最高，相对丰度值为15%。关键词:生物多样性，蜻蜓，泗溪湖自然旅游公园
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Pub Date : 2021-03-04DOI: 10.30821/KFL:JIBT.V3I2.8898
Hafizah Asby, Husnarika Febriani, Efrida Pima Sari Tambunan
wet weight, but did not have a significant effect on the number of celery stems (Apium and Celery (Apium graveolens L.) is a vegetable plant that has very bright prospects. Every year the population that continues to increase causes the need for vegetables to also increase. So to meet the needs of consumers celery production needs to be increased. Therefore, it is necessary to look for alternative efforts to increase the yield of celery cultivation, one of which is the application of Bokashi fertilizer. Bokashi is the result of fermentation of organic ingredients with EM4 technology. The purpose of this study was to determine the effect of giving Bokashi on the growth and yield of celery (Apium graveolens L.) and to determine at what dose the application of Bokashi fertilizer on growth and production of celery plants (Apium graveolens L.). The research was conducted at Jalan Sempurna Pasar 7 Termbung and the wet weight of celery was carried out at the Biology laboratory, Faculty of Science and Technology, State Islamic University of North Sumatra, Medan in July 2019 - November 2020. The data obtained were tabulated and analyzed using the One Way Analysis of Variance test. (ANOVA) at the real level (significant) used, namely α = 0.05 and continued with the Duncan's Multiple Range Test (DMRT) to see the significant results between treatments. Data analysis was using the software statistical Product and Service Solutions (SPSS) version 23. The results showed that bokashi fertilizer had a significant effect on plant height and production of celery (Apium graveolens L.) is the D4 treatment with a dose of 40 grams. graveolens L. ). 5.1.2 The optimum dose of bokashi fertilizer which has a significant effect on the growth
芹菜(Apium graveolens L.)是一种具有非常光明前景的蔬菜植物。每年不断增长的人口导致对蔬菜的需求也在增加。因此，为了满足消费者的需求，需要增加芹菜的产量。因此，有必要寻找提高芹菜栽培产量的替代措施，其中之一是施用博卡施肥。博喀什是有机原料用EM4技术发酵的产物。本研究的目的是确定施用柏克石对芹菜生长和产量的影响，并确定施用柏克石肥对芹菜生长和产量的影响。该研究于2019年7月至2020年11月在Jalan Sempurna Pasar 7 Termbung进行，芹菜的湿重在棉兰北苏门答腊国立伊斯兰大学科学与技术学院生物实验室进行。获得的数据被制成表格，并使用单向方差分析检验进行分析。(ANOVA)在真实水平上(显著)，即α = 0.05，并继续使用邓肯多重范围检验(DMRT)来观察治疗之间的显著结果。数据分析使用统计软件产品和服务解决方案(SPSS)版本23。结果表明，40 g的D4处理对芹菜株高和产量有显著影响。坟墓草;5.1.2对生长有显著影响的博克施肥的最佳用量
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