Subjects -> BIOLOGY (Total: 3134 journals)
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BIOLOGY (1491 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1720 Journals sorted alphabetically
AAPS Journal     Hybrid Journal   (Followers: 31)
Abasyn Journal of Life Sciences     Open Access   (Followers: 3)
ACS Pharmacology & Translational Science     Hybrid Journal   (Followers: 5)
ACS Synthetic Biology     Hybrid Journal   (Followers: 38)
Acta Biologica Hungarica     Full-text available via subscription   (Followers: 5)
Acta Biologica Marisiensis     Open Access   (Followers: 3)
Acta Biologica Sibirica     Open Access   (Followers: 2)
Acta Biologica Turcica     Open Access   (Followers: 1)
Acta Biomaterialia     Hybrid Journal   (Followers: 31)
Acta Biotheoretica     Hybrid Journal   (Followers: 3)
Acta Chiropterologica     Full-text available via subscription   (Followers: 5)
acta ethologica     Hybrid Journal   (Followers: 7)
Acta Fytotechnica et Zootechnica     Open Access   (Followers: 3)
Acta Ichthyologica et Piscatoria     Open Access   (Followers: 5)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Musei Silesiae, Scientiae Naturales     Open Access  
Acta Neurobiologiae Experimentalis     Open Access  
Acta Scientiae Biological Research     Open Access   (Followers: 1)
Acta Scientiarum. Biological Sciences     Open Access   (Followers: 2)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis     Open Access   (Followers: 2)
Acta Universitatis Lodziensis : Folia Biologica et Oecologica     Open Access  
Actualidades Biológicas     Open Access   (Followers: 1)
Advanced Biology     Hybrid Journal   (Followers: 1)
Advanced Health Care Technologies     Open Access   (Followers: 12)
Advanced Journal of Graduate Research     Open Access   (Followers: 1)
Advanced Membranes     Open Access   (Followers: 5)
Advanced Quantum Technologies     Hybrid Journal   (Followers: 3)
Advances in Bioinformatics     Open Access   (Followers: 22)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4)
Advances in Biology     Open Access   (Followers: 12)
Advances in Biomarker Sciences and Technology     Open Access   (Followers: 3)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 6)
Advances in Cell Biology/ Medical Journal of Cell Biology     Open Access   (Followers: 26)
Advances in Ecological Research     Full-text available via subscription   (Followers: 45)
Advances in Environmental Sciences - International Journal of the Bioflux Society     Open Access   (Followers: 17)
Advances in Enzyme Research     Open Access   (Followers: 10)
Advances in High Energy Physics     Open Access   (Followers: 26)
Advances in Human Biology     Open Access   (Followers: 8)
Advances in Life Science and Technology     Open Access   (Followers: 12)
Advances in Life Sciences     Open Access   (Followers: 5)
Advances in Marine Biology     Full-text available via subscription   (Followers: 29)
Advances in Tropical Biodiversity and Environmental Sciences     Open Access   (Followers: 5)
Advances in Virus Research     Full-text available via subscription   (Followers: 8)
Adversity and Resilience Science : Journal of Research and Practice     Hybrid Journal   (Followers: 3)
African Journal of Ecology     Hybrid Journal   (Followers: 18)
African Journal of Range & Forage Science     Hybrid Journal   (Followers: 12)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Ageing Research Reviews     Hybrid Journal   (Followers: 13)
Aggregate     Open Access   (Followers: 1)
Aging Cell     Open Access   (Followers: 22)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
AJP Cell Physiology     Hybrid Journal   (Followers: 16)
AJP Endocrinology and Metabolism     Hybrid Journal   (Followers: 26)
AJP Lung Cellular and Molecular Physiology     Hybrid Journal   (Followers: 4)
Al-Kauniyah : Jurnal Biologi     Open Access  
Alasbimn Journal     Open Access   (Followers: 1)
Alces : A Journal Devoted to the Biology and Management of Moose     Open Access  
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 8)
All Life     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Agricultural and Biological Sciences     Open Access   (Followers: 7)
American Journal of Bioethics     Hybrid Journal   (Followers: 18)
American Journal of Human Biology     Hybrid Journal   (Followers: 17)
American Journal of Medical and Biological Research     Open Access   (Followers: 4)
American Journal of Plant Sciences     Open Access   (Followers: 24)
American Journal of Primatology     Hybrid Journal   (Followers: 17)
American Naturalist     Full-text available via subscription   (Followers: 80)
Amphibia-Reptilia     Hybrid Journal   (Followers: 5)
Anaerobe     Hybrid Journal   (Followers: 3)
Analytical Methods     Hybrid Journal   (Followers: 8)
Analytical Science Advances     Open Access   (Followers: 1)
Anatomia     Open Access   (Followers: 12)
Anatomical Science International     Hybrid Journal   (Followers: 3)
Animal Cells and Systems     Hybrid Journal   (Followers: 5)
Animal Microbiome     Open Access   (Followers: 3)
Animal Models and Experimental Medicine     Open Access  
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 2)
Annales Henri Poincaré     Hybrid Journal   (Followers: 2)
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia     Open Access   (Followers: 1)
Annals of Applied Biology     Hybrid Journal   (Followers: 6)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Human Biology     Hybrid Journal   (Followers: 5)
Annals of Science and Technology     Open Access   (Followers: 2)
Annual Research & Review in Biology     Open Access  
Annual Review of Biomedical Engineering     Full-text available via subscription   (Followers: 18)
Annual Review of Biophysics     Full-text available via subscription   (Followers: 24)
Annual Review of Cancer Biology     Full-text available via subscription   (Followers: 3)
Annual Review of Cell and Developmental Biology     Full-text available via subscription   (Followers: 44)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Annual Review of Genomics and Human Genetics     Full-text available via subscription   (Followers: 31)
Annual Review of Phytopathology     Full-text available via subscription   (Followers: 11)
Anthropological Review     Open Access   (Followers: 28)
Antibiotics     Open Access   (Followers: 12)
Antioxidants     Open Access   (Followers: 4)
Antioxidants & Redox Signaling     Hybrid Journal   (Followers: 8)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 3)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apidologie     Hybrid Journal   (Followers: 4)
Apmis     Hybrid Journal   (Followers: 1)
APOPTOSIS     Hybrid Journal   (Followers: 8)
Applied Biology     Open Access  
Applied Bionics and Biomechanics     Open Access   (Followers: 4)
Applied Phycology     Open Access  
Applied Vegetation Science     Full-text available via subscription   (Followers: 9)
Aquaculture Environment Interactions     Open Access   (Followers: 7)
Aquaculture International     Hybrid Journal   (Followers: 25)
Aquaculture Reports     Open Access   (Followers: 3)
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society     Open Access   (Followers: 9)
Aquatic Biology     Open Access   (Followers: 9)
Aquatic Ecology     Hybrid Journal   (Followers: 42)
Aquatic Ecosystem Health & Management     Hybrid Journal   (Followers: 16)
Aquatic Science and Technology     Open Access   (Followers: 4)
Aquatic Toxicology     Hybrid Journal   (Followers: 26)
Arabian Journal of Scientific Research / المجلة العربية للبحث العلمي     Open Access  
Archaea     Open Access   (Followers: 3)
Archiv für Molluskenkunde: International Journal of Malacology     Full-text available via subscription   (Followers: 1)
Archives of Biological Sciences     Open Access  
Archives of Microbiology     Hybrid Journal   (Followers: 9)
Archives of Natural History     Hybrid Journal   (Followers: 8)
Archives of Oral Biology     Hybrid Journal   (Followers: 2)
Archives of Virology     Hybrid Journal   (Followers: 6)
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2)
Arctic     Open Access   (Followers: 8)
Arid Ecosystems     Hybrid Journal   (Followers: 2)
Arquivos do Instituto Biológico     Open Access   (Followers: 1)
Arquivos do Museu Dinâmico Interdisciplinar     Open Access  
Arthropod Structure & Development     Hybrid Journal   (Followers: 2)
Arthropod Systematics & Phylogeny     Open Access   (Followers: 3)
Artificial DNA: PNA & XNA     Hybrid Journal   (Followers: 2)
Artificial Intelligence in the Life Sciences     Open Access  
Asian Bioethics Review     Full-text available via subscription   (Followers: 2)
Asian Journal of Biological Sciences     Open Access   (Followers: 2)
Asian Journal of Biology     Open Access  
Asian Journal of Biotechnology and Bioresource Technology     Open Access  
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Asian Journal of Developmental Biology     Open Access   (Followers: 1)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 3)
Asian Journal of Nematology     Open Access   (Followers: 4)
Asian Journal of Poultry Science     Open Access   (Followers: 3)
Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche     Open Access  
Australian Life Scientist     Full-text available via subscription   (Followers: 2)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Autophagy     Hybrid Journal   (Followers: 8)
Avian Biology Research     Hybrid Journal   (Followers: 4)
Avian Conservation and Ecology     Open Access   (Followers: 17)
Bacterial Empire     Open Access   (Followers: 1)
Bacteriology Journal     Open Access   (Followers: 2)
Bacteriophage     Full-text available via subscription   (Followers: 2)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Plant Taxonomy     Open Access  
Bangladesh Journal of Scientific Research     Open Access  
Berita Biologi     Open Access  
Between the Species     Open Access   (Followers: 2)
BIO Web of Conferences     Open Access  
Bio-Grafía. Escritos sobre la Biología y su enseñanza     Open Access  
Bio-Lectura     Open Access  
BIO-SITE : Biologi dan Sains Terapan     Open Access  
Bioactive Compounds in Health and Disease     Open Access  
Biocatalysis and Biotransformation     Hybrid Journal   (Followers: 5)
BioCentury Innovations     Full-text available via subscription   (Followers: 2)
Biochemistry and Cell Biology     Hybrid Journal   (Followers: 18)
Biochimie     Hybrid Journal   (Followers: 4)
BioControl     Hybrid Journal   (Followers: 2)
Biocontrol Science and Technology     Hybrid Journal   (Followers: 5)
Biodemography and Social Biology     Hybrid Journal   (Followers: 1)
BIODIK : Jurnal Ilmiah Pendidikan Biologi     Open Access  
BioDiscovery     Open Access   (Followers: 2)
Biodiversitas : Journal of Biological Diversity     Open Access   (Followers: 2)
Biodiversity : Research and Conservation     Open Access   (Followers: 30)
Biodiversity Data Journal     Open Access   (Followers: 8)
Biodiversity Informatics     Open Access   (Followers: 3)
Biodiversity Information Science and Standards     Open Access   (Followers: 2)
Biodiversity Observations     Open Access   (Followers: 2)
Bioeduca : Journal of Biology Education     Open Access   (Followers: 1)
Bioeduscience     Open Access   (Followers: 2)
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Bioelectrochemistry     Hybrid Journal   (Followers: 1)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioenergy Research     Hybrid Journal   (Followers: 3)
Bioengineering and Bioscience     Open Access   (Followers: 1)
BioEssays     Hybrid Journal   (Followers: 11)
Bioethica     Open Access   (Followers: 1)
Bioethics     Hybrid Journal   (Followers: 21)
BioéthiqueOnline     Open Access   (Followers: 1)
Biogeographia : The Journal of Integrative Biogeography     Open Access   (Followers: 2)
Biogeosciences (BG)     Open Access   (Followers: 17)
Biogeosciences Discussions (BGD)     Open Access   (Followers: 4)
Bioinformatics     Hybrid Journal   (Followers: 283)
Bioinformatics Advances : Journal of the International Society for Computational Biology     Open Access   (Followers: 3)
Bioinformatics and Biology Insights     Open Access   (Followers: 13)
Biointerphases     Open Access   (Followers: 1)
Biojournal of Science and Technology     Open Access  
BioLink : Jurnal Biologi Lingkungan, Industri, Kesehatan     Open Access  
Biologia     Hybrid Journal   (Followers: 1)
Biologia Futura     Hybrid Journal  
Biologia on-line : Revista de divulgació de la Facultat de Biologia     Open Access  
Biological Bulletin     Partially Free   (Followers: 6)
Biological Control     Hybrid Journal   (Followers: 6)

        1 2 3 4 5 6 7 8 | Last

Similar Journals
Journal Cover
BioLink : Jurnal Biologi Lingkungan, Industri, Kesehatan
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2356-458X - ISSN (Online) 2597-5269
Published by Universitas Medan Area Homepage  [8 journals]
  • INTERACTION OF CO2 AND LIGHT AVAILABILITY ON PHOTOPHYSIOLOGY OF TROPICAL
           COCCOLITOPHORIDS (EMILIANIA HUXLEYI, GEPHYROCAPSA OCEANICA, AND
           OCHOSPHAERA SP.)

    • Authors: Nita Rukminasari, Muhammad Lukman, Khusnul Yaqin
      Pages: 133 - 150
      Abstract: The study to examine the calcification rate, adaptation, and the biotic response of three tropical coccolithophorids (Emiliania huxleyi, Gephyrocapsa oceanica, and Ochosphaera sp) to changes in CO2 concentration. Three selected calcifying coccolitophorids were grown at batch culture with CO2 system at two levels of CO2 (385 and 1000 ppm) and two light dark periods. The parameters measured and calculation including growth rate, particulate organic carbon content, particulate inorganic carbon content, chlorophyll a, cell size, photosynthetic, organic, inorganic carbon production, photosynthesis, and calcification rate. The results showed that there was a different response to carbonate chemistry changes and dark and light periods in any of the analyzed parameters. The growth rate of three selected calcifying microalgae tested was decreasing significantly at high concentrations of CO2 (1000 ppm) treatment on 14:10 hour light: dark periods. However, there was no significant difference between the two CO2 concentrations where they were illuminated by 24 hours light in growth rate. The increasing CO2 concentration and light-dark periods were species-specific responses to photosynthesis and calcification rate for three selected calcifying microalgae.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.7912
      Issue No: Vol. 9, No. 2 (2023)
       
  • 12 TEXTILE DYES DECOLORIZATION BY COPPER-RESISTANT-BACTERIA KLEBSIELLA
           GRIMONTII, SHIGELLA FLEXNERI, ENTEROBACTER CLOACAE ISOLATED FROM CISADANE
           RIVER TANGERANG

    • Authors: Wahyu Irawati, Vania Austine Callista Timotius, Ruben Patrick Adhiwijaya, Bellen Mouretta, Steven Anggawinata, Eunike Bunga Marvella
      Pages: 151 - 162
      Abstract: Dyes and copper are dangerous contaminants because they are toxic. Bioremediation using indigenous bacteria is the best solution to overcome water pollution. Copper resistant bacteria usually have resistance to dyes thereby helping the bioremediation of dye and copper wastes. This study aims to examine the ability of indigenous bacteria isolated from the Cisadane River, namely Klebsiella grimontii IrCis3, Shigella flexneri IrCis5, Enterobacter cloacae IrCis6, and Enterobacter cloacae IrCis9 in terms of resistance and ability to decolorize 12 textile dyes namely methylene blue, malachite green, congo red, mordant orange, reactive black, direct yellow, basic fuchsin, reactive orange, dispersed orange, remasol red, wantex yellow and wantex red. The results showed that Shigella flexneri IrCis5, Enterobacter cloacae IrCis6, and Enterobacter cloacae IrCis9 were resistant to all dye concentrations of 200 and 500 ppm except Klebsiella grimontii IrCis3 did not grow on malachite green and basic fuchsin at concentrations of 200 ppm and methylene blue, malachite green and basic fuchsin concentration of 500 ppm. Only Shigella flexneri IrCis5 has the ability to decolorize 200 ppm basic fuchsin up to 87.23% after 3 days of incubation. The addition of 3 mM CuSO4 reduced the ability to decolorize Shigella flexneri IrCis5 to 0.57%.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.7731
      Issue No: Vol. 9, No. 2 (2023)
       
  • ANALYSIS OF NEW PRIMER PAIR CANDIDATES OF rbcL GENE FOR IDENTIFICATION OF
           MICROALGAE SCENEDESMACEAE

    • Authors: Megga Ratnasari Pikoli
      Pages: 163 - 173
      Abstract: Scenedesmaceae is one of the microalgae groups that has been widely studied as promising biodiesel feedstock. Its morphological identification is often confused by environmental changes, so it requires molecular identification as well. The current study aimed to obtain primer pair candidates that identify the Scenedesmaceae based on the rbcL gene. The research used bioinformatics tools, which harvested rbcL protein sequence data, performed multiple sequence alignments, and designed primers based on conserved and less-conserved regions. The best left and right primers selected based on sequence length, melting temperature, 3' end stability, number of hairpins, and self-dimers, were paired, and three candidates were obtained. The three pairs were examined based on melting temperature difference, number of hetero-dimers, length of amplified nucleotide product, number of hits, and number of genera captured from the GenBank. Sce-16 (F, 5'-TGGTCGTGCTGTTTATGAATGT-3' and 1_RL, 5'-TGCCAAACATGAATACCACCA-3'), which is back-translated according to Hariotina sp. (AOY36008.1), is the most preferred candidate compared to the other two pairs after discussing their advantages and disadvantages. In the future, the proposed primer candidate needs to be validated through in vitro amplification with some optimizations to eliminate potential weaknesses.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.7918
      Issue No: Vol. 9, No. 2 (2023)
       
  • CARBON STORAGE IN SEAGRASS BEDS IN THE LITORAL ZONE OF SANCANG BEACH,
           GARUT

    • Authors: Dedi Koswara, Diana Hernawati, Diki Muhamad Chaidir
      Pages: 174 - 182
      Abstract: The vast expanse of seagrass beds in coastal areas can provide many ecosystem services, one of which is the ability of seagrass beds to absorb and store carbon dioxide (CO2). Carbon dioxide gas (CO2) is one of the components of greenhouse gases that contribute to global warming. So the role of seagrass is very important in the ecosystem. This study aims to determine carbon storage in seagrass in the littoral zone of Sancang Beach, Garut Regency, which was carried out in April-June 2022. Determination of potential carbon storage was carried out by taking seagrass samples with a size of 20 cm x 20 cm, then drying to a constant weight. and calculated using a carbon conversion factor for seagrass biomass of 0.34. The results showed that the carbon content at Station 1 Cibako (145.9331 g C/m2) was higher than Station 2 Cikujangjambe (110.026 g C/m2) and Station 3 Ciporeang (117.771 g C/m2). The average carbon content at Sancang beach is 124,577 g C/m2. The conclusion is that in general the carbon storage below the substrate (below ground) in seagrass in the Litoral Zone of Sancang Beach has a greater value than the value of carbon storage above the substrate (above ground).
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.7778
      Issue No: Vol. 9, No. 2 (2023)
       
  • QUALITATIVE ANALYSIS OF SALAK LEAF EXTRACT (SALACCA SUMATRANA)

    • Authors: Jalilah Jalilah Azizah Lubis, Sahlan Tuah Harahap, Fatma Suryani Harahap
      Pages: 183 - 189
      Abstract: Qualitative analysis research of salak leaf extract has been carried out, where the salak leaf extract Padangsidimpuan has characteristic with a larger size and does leaf has a meat which has a distinctive sour taste, because of its acid content, it is processed in the form of salak leaf (Salacca sumatrana) which aims to analyze the levels of secondary metabolites in salak leaf which are expected to be a cholesterol-lowering herbal medicine. With the appropriate qualitative analysis of salak leaf using the extraction method, namely the maceration method with methanol solvent, the results obtained that salak leaf contains Secondary metabolites consisting of alkaloids, phenolics, saponins, tannins, terpenoids, however, it does not contain flavonoids and steroids.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.8219
      Issue No: Vol. 9, No. 2 (2023)
       
  • UTILIZATION OF EUCALYPTUS GRANDIS LEAF WASTE IN THE PRODUCTION OF VCO
           BASED LIQUID SOAP

    • Authors: Desi Ardilla, Khairunnisa Rangkuti, M. Taufik
      Pages: 190 - 200
      Abstract: Eucalyptus grandis still not much used, especially the leaves. Besides being used as an industrial material, Eucalyptus is also used as a medicinal plant to cure infectious diseases, fever and rheumatism as well as being an antiseptic and can be applied in the form of bath soap. The purpose of this study was to determine the best combination of liquid body soap with the addition of eucalyptus leaf extract with various concentrations. The research method used was a laboratory experiment using a completely randomized design (CRD) method with the addition of eucalyptus oil A = 1% (w/w), B = 2% (w/w), C = 3% (w/w), D = 4% (w/w) and E = 5% in total VCO 80 oil, 40% KOH = 35 g, glycerin = 60 g, propyleneglycol = 35 g, three times the repetition. The parameters observed were the physicochemical properties of soap based on SNI Liquid Bath Soap 06-4085-1996 including free alkali content, namely A = 0.072%, B = 0.052%, C = 0.078%, D = 0.090$, E-), 104% , pH value, A= 8.36, B= 8.78, C= 8.80, D= 8.85 and E=8.94, Specific Gravity A= 1.008, B= 1.018, C= 1.009, D= 1.190, E = 1.014.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.8535
      Issue No: Vol. 9, No. 2 (2023)
       
  • ANALYSIS OF FORMULATION MEDIA FOR PLANTING OYSTER MUSHROOM (Pleurotus
           ostreatus)AGRICULTURAL WASTE BASED MATERIALS

    • Authors: Siti Mardiana, Ellen Lumisar Panggabean, Indah Apriliya, Muhammad Usman
      Pages: 201 - 208
      Abstract: The effort of Indonesian people to fulfill their protein intake in an economically accessible way is by producing and consuming oyster mushrooms, because their protein content was viable as an alternative to animal-based products. Combination of sugarcane bagasse, palm fronds (PKS), and sawdust can be used as growing medium for oyster mushrooms. The aim of this study was: (1) to analyze the change in the pH of the combination media formulation of Palm Oil Frond Waste (PKS), sugarcane bagasse, and sawdust; (2) identifying the composition of nutrients in the aforementioned agricultural waste as a growing medium for oyster mushroom. This study was composed of two steps: 1) Preparing the composition of the growing medium from agricultural waste; and 2) Analyzing nutrient composition of the growing medium of oyster mushroom. The research was conducted by using Analysis of Variance (ANOVA) with a Non-Factorial Completely Randomized Design (RAL). The combination of oyster mushroom growing medium from palm fronds, sugarcane bagasse, and sawdust has different pH levels and nutritional contents. The combination of M0 – M8 oyster mushroom growing medium has the suitable level of pH to grow the mushrooms at 6,5 – 8,0 pH. From the formulation analysis of nutrient in the combination of M0 – M8, it can be used as a reference for the nutrient content of oyster mushrooms growing medium from palm fronds and sugarcane bagasse.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.7504
      Issue No: Vol. 9, No. 2 (2023)
       
  • SOIL QUALITY IN ORGANIC AGRICULTURAL LAND: STUDY OF CHEMICAL ANALYSIS AND
           SOIL MICROBIOLOGY

    • Authors: Melfa Aisyah Hutasuhut, Husnarika Febriani, Leni Widiarti
      Pages: 209 - 218
      Abstract: Increased public awareness for a healthy diet must be balanced with successful cultivation. Organic farming system is the right choice since it leaves all non-organic components. This study aims to identify the chemical and microbiological properties of agricultural soils that apply organic systems located in Batang Buluh Village, Pematang Johar, Deli Serdang Regency, North Sumatra. Chemical analysis was carried out at Socfindo Laboratory in Medan, including testing the pH of H2O, total P and K, C Organic, N Kjehldahl, and CEC (Cation Exchange Capacity). Soil microbiological tests were carried out at Medan Regional Health Lab including gram staining tests and biochemical tests. The results of chemical analysis from the analysis of pH H2O, P and total K, Organic C, N Kjehldahl, and CEC (Cation Exchange Capacity) at the edges and middle each obtained that was pH 5 -6, soil total P content was 0.0260% up to 0.450%, available K analysis, namely 0.200% and 0.210%, organic C content obtained results of 0.970% and 0.630%, N content using the KJehldahl method was 0.150% and 0.090%, and CEC obtained results of 14.330 me/100 and 10.090 me/100 g. Related species of Bacillus contained in the soil were Gram-positive, rod-shaped, spore-forming, aerobic or facultative anaerobic, motile bacteria with peritrichous flagella.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.8178
      Issue No: Vol. 9, No. 2 (2023)
       
  • THE PRESENCE OF PLUMBUM (Pb) AND CADMIUM (Cd) HEAVY METALS OF BROILER
           CHICKEN

    • Authors: Zahra Layli Rochimi, Rahayu Sri Pujiati, Prehatin Tri Rahayu Ningrum
      Pages: 219 - 230
      Abstract: The level of meat production from purebred chickens in East Java Province from 2009 to 2019 reached 510,535.29 tons. The existence of heavy metal contamination in chickens are dangerous for human health due to the lack of good facilities and infrastructure on broiler farms including land and locations that must be environmentally friendly, and when rearing chickens in paying attention to the needs of water and feed for broiler chickens that are not polluted by heavy metals. The objective of this study was to describe the levels of heavy metals in chicken meat at X Chicken Farm in Kertosari Village, Pakusari District, Jember Regency. This research was a type of descriptive research. The subjects of this study were 20 samples of broiler chicken, well water, and 4 respondents. The sampling technique used purposive sampling. Data analysis used descriptive to describe the use of chicken feed, sources of drinking water, and the presence of heavy metal levels of Pb and Cd in chicken. The result indicate that as many as 20 samples of chicken meat contained levels of heavy metals Pb and Cd below the quality standard values according to Indonesian Nasional Standard (SNI) 7387:2009), namely (pb 0.3/kg) and (Cd <0.0200) while for water drinking water used comes from drilled wells containing Pb 0.001 mg/l and Cd 0.001 mg/l..
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.7571
      Issue No: Vol. 9, No. 2 (2023)
       
  • THE EFFECT OF WEED MANAGEMENT USING HERBICIDE ON CORN RESULTS (Zea mays L)

    • Authors: fitria, Nana Trisna Mei Br Kabeakan, Nurhajijah
      Pages: 231 - 238
      Abstract: Weeds are undesired plants to grow so weed management is expected to overcome losses caused by weeds. One way to manage weeds using herbicides is the chemicals used for weed management in plants. This study aims to determine the influence of weed management using herbicides on corn yields. The research was conducted in Sekoci Village, Besitang District, Langkat Regency, North Sumatra in April-June 2021. This study used a non-factorial Randomized Block Design (RBD), with 4 treatments and 3 replications, namely contact, systemic, weeding and weeds without management. The results showed that herbicide management significantly affected 100 seed weight, cob weight per plot and seed weight per plot, but had no significant effect on weed without management. It indicates that the treatment of weed management using herbicides affects plant growth and yield. Weed management for farmers is very important to prevent competition for nutrients between weeds and corn.
      PubDate: 2023-02-15
      DOI: 10.31289/biolink.v9i2.8569
      Issue No: Vol. 9, No. 2 (2023)
       
 
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