cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota semarang,
Jawa tengah
INDONESIA
Bioma : Berkala Ilmiah Biologi
Published by Universitas Diponegoro
ISSN : -     EISSN : 25982370     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
BIOMA (ISSN 1410-8801) adalah Majalah Ilmiah Biologi yang bertujuan mewadahi semua informasi hasil penelitian, telaah pustaka, makalah teknis, dan kajian buku, dari berbagai cabang ilmu Biologi. Diharapkan penerbitan ini dapat berkontribusi dalam penyampaian informasi ilmiah yang merupakan mata rantai proses kegiatan ilmiah. Terbit sejak tahun 1999.
Arjuna Subject : -
Articles 12 Documents
 1   2 
Search results for , issue "Vol. 20, No. 1, Tahun 2018" : 12 Documents clear
Perbandingan Karakter Ekologi OPT (Organisme Pengganggu Tanaman) Dan Musuh Alaminya Pada Masa Tanam Yang Berbeda Di Sawah Organik Dan Anorganik Hadi, Mochamad
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (36.128 KB) | DOI: 10.14710/bioma.20.1.40-43

Abstract

Kualitas dan kuantitas tanaman padi sebagai produsen dalam jaring makanan akan mengundang hadirnya serangga herbivore sebagai konsumen pertama. Hadirnya serangga herbivore atau sering disebut OPT (Organisme Pengganggu Tanaman) di ekosistem sawah akan mengganggu produktivitas tanaman padi. Namun demikian hadirnya OPT di ekosistem sawah juga akan mengundang serangga musuh alaminya sebagai konsumen tingkat kedua, baik predator maupun parasitoiid, yang akan mengontrol keberadaan OPT. Pertanian organik adalah manajemen pertanian yang meniadakan  penggunaan bahan kimia sintetik sebagai sarana produksi, baik berupa pupuk maupun pestisida. Penelitian bertujuan untuk mengetahui bagaimana karakter  ekologi serangga OPT dan musuh alaminya pada masa tanam yang berbeda yaitu padi dan palawija pada sawah organik dan anorganik. Karakter ekologi dianalisis dengan jumlah jenis, jumlah individu, indeks keragaman (H’), kelimpahan (Di) dan kemerataan (e). Hasil penelitian menunjukkan bahwa secara umum karakter ekologi OPT dan musuh alami di dua masa tanam yang berbeda hampir sama, baik di sawah organik maupun anorganik. Jumlah jenis maupun jumlah individu OPT dan musuh alaminya di sawah organik maupun anorganik pada dua masa tanam yang berbeda juga menunjukkan hasil yang hampir sama. Keragaman dan kemerataan persebaran OPT dan musuh alaminya juga tidak berbeda pada kedua masa tanam yang berbeda. Namun demikian pada kedua masa tanam menunjukkan perbedaan dalam jenis OPT maupun musuh alaminya yang hadir, namun antara sawah organik dengan sawah anorganik tidak menunjukkan perbedaan.            Kata kunci :  OPT, musuh alami, masa tanam, sawah organik dan sawah anorganik.
Utilization of Ficus benjamina by Birds at Urban Habitat in Depok Pradana, Dimas Haryo; Mardiastuti, Ani; Yasman, Y
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (77.125 KB) | DOI: 10.14710/bioma.20.1.75-78

Abstract

Most of the research about the relationship of birds and figs were conducted at natural habitat. We conducted a research about this relationship at urban habitat in Depok and specifically studied utilization of Ficus benjamina by birds as feeding and nesting tree.  The objective of our research was to describe the F. benjamina utilization by urban birds in Depok.  Scans sampling and nest counting were used during this study.  Our research shows that F. benjamina was used as feeding tree by most of birds which lives at urban habitat in Depok.  Our research also shows that some birds used this fig species as nesting tree.    Key Words : birds, Ficus benjamina, urban, Java
Keanekaragaman Dioscorea spp dan habitatnya di Kabupaten Kudus, Jawa Tengah Diversity and habitat of Dioscorea spp in Kudus, Central Java Fatma, Lania Yuchanitz; Jumari, J; Utami, Sri
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (244.325 KB) | DOI: 10.14710/bioma.20.1.17-24

Abstract

Dioscorea spp (Yam) is one of the potential local food producers. It has advantage of high species diversity, containing high carbonhydrate and easy to grow. The aim of this research is to determine the variants of Dioscorea spp, examine the structure and composition of trees around Dioscorea spp habitat and determine the enviromental factors of Dioscorea spp habitat. The research was carried out in May-June 2017. The sampling technique was using exploration and quadratic method by plotting the trees into 5 squares (10 m x 10 m) with diameter of stem more than 10 cm. The name of each species, number of individuals and stem diameter measurement of each plot were recorded. The data of diversity Dioscorea spp and environmental factors were analyzed by sort of descruptive set and the trees was analyzed by vegetation analysis. The results showed that 4 species of Dioscorea spp. There are D. hispida, D. bulbifera, D. alata and D. esculenta. D. alata has 3 variants called uwi ireng, uwi ungu and uwi bangkulit. D. esculenta has 2 variants called gembili bebek and gembili terpong. The trees around Dioscorea spp obtained 21 species with the most important index is banana (Musa paradisiaca) and sengon (Albizia chinensis). The environmental factors were indicated the appropiate growth of Dioscorea spp. Key words: Dioscorea spp, local food stuffs and variant types
Pengaruh Suhu Pengeringan Terhadap Kadar Air, Kadar Flavonoid dan Aktivitas Antioksidan Daun dan Umbi Rumput Teki (Cyperus rotundus L.) Syafrida, Mulia; Darmanti, Sri; Izzati, Munifatul
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (96.996 KB) | DOI: 10.14710/bioma.20.1.44-50

Abstract

Purple nutsedge (Cyperus rotundus) is one of the medicinal plants that are potential to be developed as one source of antioxidants. This plant is quite interesting to developed because it is cheap and easy to obtain. The part of  purple nutsedge that often used is the tuber, leaves have not been widely used, whereas it contains flavonoids that can be used as an antioxidant. Post harvest handling is very important, especially in drying method. Drying aims to get a simplicia that is not easily damaged so it can be stored for a long time. This research was aimed to study differences of water content, flavonoids and antioxidant activity in leaves and tubers to the effect of different drying temperatures. The experimental analysis of this research is a Completely Randomized Design of two factors: the influence of different drying temperature (control (± 27 ºC), 30 ºC, 40 ºC and  50 ºC) and different parts of organs (leaves and tubers) with each of the three time repetition. Parameters include the study of  water content, levels of flavonoids and antioxidant activity. Data were analyzed using ANOVA followed by Duncan’s test at the level of 95%. The results showed that there was no interaction between drying temperature and organ difference in water content, flavonoids and antioxidant activity of purple nutsedge. Leaves of purple nutsdege have flavonoids and antioxidant activity is higher than the bulb. Water content, flavonoids and antioxidant activity decreases with increasing drying temperature.Keywords: purple nutsedge (Cyperus rotundus L.), drying temperature,  flavonoids, antioxidant activity
Keanekaragaman Jenis Tumbuhan Paku (Pteridophyta) di Jalur Pendakian Selo Kawasan Taman Nasional Gunung Merbabu, Jawa Tengah Astuti, Fitri Kusuma; Murningsih, M; Jumari, J
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (88.805 KB) | DOI: 10.14710/bioma.20.1.25-30

Abstract

Indonesia has a very high biodiversity, as well as ferns (Pteridophyta).Selo climbing lane at Merbabu Montain Nasional Park selected as the study site because of the many ferns that were founded in this area.The purpose of this study was to analyze the diversity of ferns species.in tropical rain forest ecosystem of high mountains and sub-alpine forests ecosystem on Selo climbing lane at Merbabu Mount National Park. There are many human activity in Selo climbing lanesupposed to influence the existing plants. This research was held on August-December 2016. The method usedinventory inSelo climbing lane and Plot, then analyzed using diversity index. The results found 33 species of ferns from 15 families. The diversity of ferns in the tropical rain forest ecosystem of high mountains fall into the medium category except at post II (2412 masl) has low diversity. Diversity in the sub-alpine forest ecosystem can not be calculated. Key word: diversity, fern, Selo climbing lane.
Pengaruh Kandungan Ekstrak Daun Zodia (Evodia suaveolens) Terhadap Mortalitas Larva Nyamuk Aedes aegypti Basundari, Sinta Anas; Tarwotjo, Udi; Kusdiyantini, Endang
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (61.693 KB) | DOI: 10.14710/bioma.20.1.51-58

Abstract

Aedes aegypti mosquito is a vector of dengue hemorrhagic fever (DHF). One place that is endemic by A.aegypti mosquitoes is the city of Semarang, specifically  in Tembalang District. Tembalang district is one of the areas with highest DHF incidence rate. A.aegypti mosquito vector control is still using artificial insecticide, where the insecticide has negative impact to health and environment. Zodia leaves (Evodia suaveolens) are known to have potential as a natural insecticide, because they have secondary metabolites such as tannins, alkaloids, flavonoids that can be used as biolarvasides. This study aims to determine the content of phytochemical compounds of zodia leaves extract and to know the mortality in each population to zodia leaves extract. The extract of zodia leaf is obtained using maceration method. Chemical compounds contained in zodia leaves were analyzed using FT-IR. This research method is bioassay test, where the larvae are soaked with various series of concentration of zodia leaf extract. Each series of concentrations required ten larvae. The larvae used came from five kelurahan in Tembalang Subdistrict. The data were processed using probit analysis to obtain LC50. The results of LC50 obtained from the smallest to largest is 39,94 (34,67-45,28); 41,98 (36,6-48,07); 46,18 (39,28- 53,97); 47,62 (39,92-54,32) and 49,44 (42,24-58,25). The result of LC50 shows that is not significantly different, because there is the value of the overlapping fiducial limits between each population
Kualitas Telur Puyuh Jepang (Coturnix coturnix japonica L.) berdasarkan Variabel pH telur, Indeks Kuning Telur (IKT) dan Indeks Putih Telur (IPT) setelah Penyimpanan yang Dilakukan Perendaman Pada Air Kapur Sebelum Penyimpanan Djaelani, Muhammad Anwar
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.455 KB) | DOI: 10.14710/bioma.20.1.31-34

Abstract

Puyuh Jepang (Coturnix coturnix japonica L.) banyak dibudidayakan untuk diambil telurnya karena produktivitas telur yang tinggi. Nilai gizi telur puyuh tidak kalah dengan telur unggas lain, sehingga dapat menambah variasi dalam penyediaan sumber protein hewani. Telur merupakan salah satu bahan makanan yang hampir sempurna. Bahan makanan ini mengandung zat gizi lengkap antara lain protein, lemak, vitamin dan mineral. Telur segar yaitu telur yang baru diletakkan oleh induk disarangnya, mempunyai daya simpan yang pendek. Salah satu faktor yang menyebabkan rusaknya telur adalah lama waktu penyimpanan . Penelitian ini bertujuan untuk menganalisis kualitas telur puyuh berdasarkan pH Telur,  nilai Indeks Kuning Telur (IKT), Indeks Putih Telur (IPT) setelah perendaman dengan air kapur. Sampel yang digunakan adalah telur puyuh yang diambil pada hari kedua peneluran. Digunakan Rancangan acak  lengkap dengan 5 kelompok perlakuan yaitu P1 kelompok telur,diamati pada hari ke 2. P2 kelompok telur disimpan dan diamati pada hari ke 16. P3 kelompok telur direndam pada air kapur selama 1 menit, disimpan dan diamati pada hari ke 16. P4 kelompok telur disimpan dan diamati pada hari ke 30. P5 kelompok telur direndam pada air kapur selama 1 menit, disimpan dan diamati pada hari ke 30. Data yang diperoleh dianalisis menggunakan ANOVA dengan taraf signifikansi 5%. Hasil penelitian menunjukkan semua variabel penelitian menenunjukkan penurunan seiring dengan bertambahnya waktu penyimpanan. Penurunan kualitas disebabkan faktor lamanya penyimpanan yang menyebabkan perubahan kondisi telur. Kata kunci : Penyimpanan telur, pH telur, Indeks Kuning Telur, Indeks Putih Telur
Pengaruh Pemberian Hidrogen Peroksida (H2O2) Dalam Pengendalian Ektoparasit, Dan Kelangsungan Hidup Benih Ikan Nila Salin (Oreochromis niloticus) Di Balai Besar Perikanan Budidaya Air Payau Jepara Arini, Priesty Dyah; Muhammad, Fuad; Baskoro, Karyadi; Fahris, Noor
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.015 KB) | DOI: 10.14710/bioma.20.1.59-65

Abstract

Nile tilapia fish (saline) is tolerable to high salinity and has a better resilience in environmental change, make it perfect for fish culture in the ponds. Problems which usually occur in fish culture is disease which is triggered by the decrease of water quality so that the parasytes begin to emerge. The ectoparasyte which usually attacks the fish is Trichodina sp. By adding hydrogen peroxide into the water medium, this type of ectoparasyte is expected to be controlled. This research is conducted to examine the influence of the hydrogen peroxide concentration difference to the increase of water medium quality, ectoparasyte controlling, and the survival rate of nile tilapia fish. The used method is by adding hydrogen peroxide into the water medium in various concentration, 0 ppm as control, 5 ppm, 10 ppm, and 15 ppm given in three times until day 10. The result of this research shown that different hydrogen peroxide concentration may influence the quality of the water medium, controling ectoparasyte,  increase nile tilapia survival rate. The medium with hydrogen peroxide concentration (15 ppm) shows the best result. Keywords: nile tilapia fish, Trichodina sp, hydrogen peroxide, water medium quality, ectoparasyte control, survival rate.
Isolasi dan Identifikasi Bakteri Pelarut Fosfat dari Tanah Gambut Larasati, Ella Dewani; Rukmi, MG Isworo; Kusdiyantini, Endang; Ginting, R Cinta Badia
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (383.652 KB) | DOI: 10.14710/bioma.20.1.1-8

Abstract

Phosphate (P) are macronutrients that necessary for growth and development of plants, But the availability of phosphate dissolved in the ground are very limited because trend is bound to minerals ground form phosphate complexs. One of the alternative to improve the efficiency of phosphate is by utilize phosphate solubilizing bacteria. Phosphate solubilizing bacteria is bacteria capable of dissolving phosphate that is not available become available, so that it can be absorbed by plants. Peat soils can be used as a source of phosphate solubilizing bacteria because , peat soils formed from litter and organic matter so, many microorganisms which live in peat soils one of them is a phosphate solubilizing bacteria. The aim of this research is to isolat, identify bacteria to species level using Biolog system GenIII Mircoplate, and test the ability of phosphate dissolution. The isolation is done with the methods spread plate in a media pikovkaya solid and testing the ability to isolat qualitatively glimpsed clear zone around colonies, measuring phosphate solubilizing index. testing the ability isolats quantitatively by measuring solubility phosphate using spektrofotometer, and identification isolats using Biolog System. Eighteen isolates phosphate solubilizing bacteria successfully obtained from of peat soils, two isolates of them potential in solubilizing phosphate, According to Biolog system the second isolates identified as Pseudomonas tolaasii (isolate PG2T.5) and a Bacillus pumilus (isolate PG3TT.2), each is about phosphate dissolved successive of 24,81 mg/L and 22,62 mg/L Key words: Peat Soil, Isolation, Phosphate Solubilizing  Bacteria, Biolog System Identification
Pemanfaatan Bakteri Asam Laktat yang Di Isolasi Dari Saluran Pencernaan Ayam Lokal Untuk Pembuatan VCO Secara Fermentasi Khotimah, Husnul; Baniyah, Laelatul; Hanafi, Imam; Wardani, Permadi Wisnu Aji; Sari, Saskia Maisi Monika; Nur Jannah, Siti
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (143.82 KB) | DOI: 10.14710/bioma.20.1.35-39

Abstract

Indonesia merupakan negara tropis yang memiliki banyak pulau dan merupakan negara produsen kelapa utama di dunia. .Pada tahun 2014 luas areal perkebuan tanaman kelapa di dunia mencapai 11 juta ha dan 93% berada di wilayah Asia Pasifik. Hal ini merupakan peluang untuk pengembangan kelapa menjadi aneka produk yang bermanfaat. Salah satu pemanfaatan kelapa dalam bidang kesehatan dalam upaya mendukung visi Indonesia sehat 2015 adalah dengan adanya VCO (virgin coconut oli). Proses pembuatan VCO adalah dengan cara fermentasi tidak mengalami proses pemanasan dan difermentasi dengan menggunakan bakteri asam laktat hasil dari isolasi pada saluran pencernaan ayam lokal, sehingga VCO yang dihasilkan memiliki kualitas yang baik. Berdasarkan uji fisik (uji viskositas) menunjukkan sampel H dengan isolat BUB 3 bahwa nilai viskositas sebesar 58,4325 Pa.s dan densitas 937,5 Kg/m3. Pada uji kimia (uji asam lemak bebas) didapatkan hasil kadar asam lemak bebas sampel H (BUB 3) dengan paling mendekati kadar asam lemak bebas menurut  SNI 7381 tahun 2008 tentang VCO yaitu kadar asam lemak bebas maksimal dalam VCO adalah sebesar 0,2%. Sedangkan berdasarkan uji hasil pengujian organoleptik dari 11 koresponden didapatkan hasil bahwa tingkat kesukaan dari koresponden terhadap tekstur dari sampel VCO yaitu 7, yang berarti suka. Tingkat kesukaan terhadap aroma dari sampel VCO yaitu 7, yang berarti suka. Tingkat kesukaan terhadap rasa dari sampel VCO yaitu 5, yang berarti netral. Sedangkan tingkat kesukaan terhadap warna dari sampel VCO yaitu 5, yang berarti netral dan menunjukkan kualitas VCO yang didapatkan baik. Kata kunci: VCO, BAL, saluran pencernaan ayam, fermentasi

Page 1 of 2 | Total Record : 12

 1   2 

Filter by Year

2018 2018


Reset
Filter By Issues
All Issue Volume 28 Issue 1 Year 2026 (Issue in Progress) Volume 27 Issue 2 Year 2025 Volume 27 Issue 1 Year 2025 Vol. 26 No 2, Tahun 2024 Vol. 26, No 1, Tahun 2024 Vol. 25 No 2, Tahun 2023 Vol. 25, No 1, Tahun 2023 Vol. 24, No 2, Tahun 2022 Vol. 23, No 2, Tahun 2021 Vol. 23, No 1, Tahun 2021 Vol. 22, No 2, Tahun 2020 Vol. 22, No 1, Tahun 2020 Vol. 21, No 2, Tahun 2019 Vol. 21, No 1, Tahun 2019 Vol. 20, No 2, Tahun 2018 Vol. 20, No. 1, Tahun 2018 Vol. 19, No. 2, Tahun 2017 Vol. 19, No. 1, Tahun 2017 Vol. 18, No.2, Tahun 2016 Vol. 18, No.1, Tahun 2016 Vol. 17, No.2, Tahun 2015 Vol. 17, No.1, Tahun 2015 Vol. 16, No.2, Tahun 2014 Vol. 16, No.1, Tahun 2014 Vol. 15, No.2, Tahun 2013 Vol. 15, No.1, Tahun 2013 Vol. 14, No. 2, Tahun 2012 Vol. 14, No.1, Tahun 2012 Vol. 13, No. 2, Tahun 2011 Vol. 13, No. 1, Tahun 2011 Vol. 12, No. 2, Tahun 2010 Vol. 12, No. 1, Tahun 2010 Vol. 11, No. 2, Tahun 2009 Vol. 11, No. 1, Tahun 2009 Vol. 10, No. 2, Tahun 2008 Vol. 10, No. 1, Tahun 2008 Vol. 09, No. 2, Tahun 2007 More Issue