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BIOMA
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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.
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Articles 164 Documents
Kemampuan Bakteri Probiotik pada medium Soygurt Kacang Merah (Phaseolus vulgaris L) dengan konsentrasi skim yang berbeda dalam menurunkan kadar kolesterol secara in vitro Lunggani, Arina Tri; Lestiana, Epy Vita
BIOMA Vol. 09, No. 1, Tahun 2007
Publisher : BIOMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

Pemanfaatan strain strain bakteri
EKOLOGI BENTANG LAHAN Soeprobowati, Tri Retnaningsih
Bioma Vol. 13, No. 2, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (67.881 KB) | DOI: 10.14710/bioma, 13, 2, 46-53

Abstract

Ekologi Bentang lahanmerupakan dasar dari lingkungan manusia.Manusia sendiri dalam hidupnya tidak dapatterlepas dari hewan dan tumbuhan. Oleh karena itubentang lahan dapat didefinisikan sebagaikarakteristik alami suatu area dari dan atau dekatpermukaan bumi yang terbentuk oleh adanyainteraksi antara faktor abiotik (batuan, air, udara,tanah) dan faktor biotik (tumbuhan, hewan danmanusia) yang saling mempengaruhi dandipengaruhi. Oleh karena itu maka kajian bentanglahan fokus pada kajian hubungan antara ruangdan waktu antara fenomena alam dan proses didalam bentang lahan atau geosfer termasukkomunitas tumbuhan, hewan dan manusia
Fluktuasi Populasi Walang Sangit Leptocorisa oratorius F. (Hemiptera : Alydidae) Pada Komunitas Padi Di Dusun Kepitu, Sleman, Daerah Istimewa Yogyakarta Pratimi, Anita -
Bioma Vol. 13, No. 2, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.766 KB) | DOI: 10.14710/bioma, 13, 2, 54-59

Abstract

Research on population fluctuation of rice bug L. oratorius on paddy community using Situ Bagendit,Ciherang and IR64 rice varieties in Kepitu Village, Sleman was done. This experiment was conducted in April 2011to July 2011 in the paddy community Kepitu Village, Sleman, Daerah Istimewa Yogyakarta. The objectives of theresearch was to predict the population fluctuation of rice bug pest in rice crops in paddy community Kepitu Village,Sleman, Daerah Istimewa Yogyakarta with a special approach using correlogram analysis.The purposive sampling technique was used in this research. Rice terraces of the sampling unit were plotted inrice varieties of Situ Bagendit, Ciherang and IR64 respectively. Rice bug was counted in series of periodical time(every three days). Total number of rice bug per m2 was used for determining the serial correlation coefficient (rs)and the variance of log population density at time t and t +1 (log Nt and log Nt+1) for every three days (t).The valueof rs was associated with s in correlogram. Fluctuation population of the rice bug determined through concistencyperiodicity and amplitude curve of the correlogram. The population distribution pattern was identified by means theratio between variance and the average of total number of rice bug.The result showed that the population fluctuation of rice bug was predicted by the migration, from thereservoir to rice crop and vice versa. The plots which were adjacent to refuge protected from insecticide sprays havehigher abundance of rice bug than the plots which were located far from the refuge. Based on the correlationcoefficient, the population fluctuation of Situ Bagendit rice’s plots has an oscillation trend. The corellogram curveshowed exogenous and irregular type. In the plots planted with Ciherang rice, the pop fluctuation was alsoexperience oscillations with corellogram curve shapes, it indicates endogenous and exogenous type with an irregularperiodicity. In the plots planted with IR64 rice, oscillation occur with the endogenous corellogram curve with nonstationaryand non-periodict type. The pattern of population distribution of rice bug in Kepitu Village was aclustered distribution.
Pertumbuhan dan Produktivitas Tanaman Bawang Merah (Allium ascalonicum L. var.Tiron) Dengan Perlakuan Gracilaria verrucosa Sebagai Penjerap Air Pada Tanah Pasir Umami, Arif -; Darmanti, Sri -; Haryanti, Sri -
Bioma Vol. 13, No. 2, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (118.942 KB) | DOI: 10.14710/bioma, 13, 2, 60-66

Abstract

The aims of this study to determine effect of treatment G.verrucosa as water trappers on growth andproductivity of onions crops grown on sandy soil. The research using CRD with factorial pattern ( 3 x 4 ). The firstfactor is the size of pieces G.verrucosa (U1 =flour, U2 =0.25 cm, U3 = 0.5 cm). The second factor is thecomposition of the mixture G.verrucosa: sand (T1 = 0%: 100%, T2 =10%: 90%, T3 =20%: 80% and T4 =30%:70%). The data obtained were analyzed by ANAVA at the level of significance of 95% followed by Duncans at95% significance level. The results showed that the addition of G. verrucosa able to increase growth and cropproductivity compared with the onion crops grown on sandy soil only. The most influential medium for plantgrowth is a mixture of onion G. verrucosa with sand on the composition of 20%: 80% with G. verrucosa in all sizes,while the most influential medium for the production of onion crop is a mixture of G. verrucosa in all sizes with asandy soil with a ratio of 10%: 90%.
Pertumbuhan Legume pada Ketinggian yang Berbeda Growth of Legums in Different Altitude Sarmita, Fitriani -; Hastuti, Endah Dwi; Haryanti, Sri -
Bioma Vol. 13, No. 2, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (57.084 KB) | DOI: 10.14710/bioma, 13, 2, 67-72

Abstract

Alfalfa (Medicago sativa L.) was one of the example plant that the chlorophyll has been used for medicine,but there were obstacles in cultivation alfalfa (M. sativa L.), becouse the seed must have been imported. Besides that,in Indonesia Alfalfa’s seed was sterile. Legume used in this research will use as chlorophyll alternative source besidealfalfa (M. sativa L.). Legume that have been examined were planted in three location with different altitude that wasSemarang (200 m above sea level), Ungaran (316 m above sea level) and Bandungan (843 m above sea level).Alfalfa (M. sativa L.) is subtropical plant meanwhile legume used to be cultivated in Indonesia is tropical plant.That’s why in this research examined legume were planted in different altitude. Purposes of this research were toknow the growth of legume, knowing if there were interaction among five legumes and planting location withdifferent altitude.. Legumes that were used winged bean (Psophocarpus tetragonolobus (L.) DC.), cowpea (Vignaunguiculata (L.), alfalfa (M. sativa L.), long bean (Vigna sesquipedalis) and common bean (Phaseolus vulgaris L.).The experimental design is completely randomize design with four replication. The data were analyzed by ANOVAtest and continued with Duncan multiple range test with 95% confidence intervals.The results showed that (P.tetragonolobus (L.) DC.) which was planted in Ungaran has the optimum growth of legume.
Pertumbuhan Mencit (Mus musculus L) Setelah Pemberian Biji Jarak Pagar (Jatropha curcas) Muliani, Hirawati -
Bioma Vol. 13, No. 2, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (57.653 KB) | DOI: 10.14710/bioma, 13, 2, 73-79

Abstract

The research of white mouse growth exposed to barbados nut’s seed is aimed to know about the effect ofbarbados nut’s seed on the growth of female white mouse.Thirty two female white mouse were acclimated during 1 week and then alloted into 2 groups, each groupwas treated as follows : P0 (control): were giving of aquadest; P1: were giving of 0,2 grams barbados nut’s seedpowder daily per mouse. Barbados nut’s seed powder were given by pipet to the mouth of the mouse. Long of thetreatment was 14 days and each treatments with 16 replication.Main parameter observed was the change of the body weight. Supporting parameter was the foodconsumption. Data was analyzed by varians analysis with Completely Random Design.The white mouse was exposed of the barbados nut’s seed decrease of the body weight.
Perubahan Kandungan Ammonia, Nitrit dan Nitrat Dalam Air Tambak Pada Model Budidaya Udang Windu Dengan Rumput Laut Sargassum plagyophyllum dan Ekstraknya Izzati, Munifatul -
Bioma Vol. 13, No. 2, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.023 KB) | DOI: 10.14710/bioma, 13, 2, 80-84

Abstract

Salah satu masalah penyebab kegagalan dalam budidaya udang windu adalah tingginya limbah organic akibatsisa pakan yang tidak dikonsumsi. Akumulasi sisa pakan yang sebagian besar komponenya protein ini telahmengakibatkan meningkatnya konsentrasi ammonia, nitrit dan nitrat dalam air tambak. Ammonia dan nitritmerupakan bahan kimia yang dapat meracuni udang yang dibudidayakan. Model budidaya ganda udang denganrumput laut merupakan salah satu teknik untuk menurunkan kandungan ammonia, nitrit dan nitrat dalam air tambak.Penelitian ini bertujuan untuk menguji penurunan kandungan ammonia, nitrit dan nitrat dalam air tambak padamodel budidaya udang dengan rumput laut Sargassum plagyophyllum dan ekstraknya. Penambahan ekstrakSargassum ini diharapkan dapat menurunkan pertumbuhan bakteri pathogen, sebagaimana sifat antibakteri padaekstrak tersebut. Model budidaya udang tanpa rumput laut maupun ekstrak digunakan sebagai kontrol. Rancanganpenelitian ini adalah acak lengkap (RAL), dengan 3 perlakuan dan 3 ulangan. Data yang diperoleh diolah denganANOVA faktor tunggal. Hasil penelitian menunjukkan bahwa model budidaya udang dengan Sargassum dapatmenurunkan ammonia dan nitrit hanya sampai dengan usia pemeliharaan 8 minggu. Lebih dari usia pemeliharaantersebut, kandungan ammonia dan nitrit justru meningkat. Hal ini disebabkan karena Sargassum yang digunakanmengalami kematian akibat turunnya hujan pada minggu ke-10. Penambahan ekstrak Sargassum tidak menimbulkanperbedaan kandungan ammonia, nitrit dan nitrat apabila dibandingakan dengan kontrol.
Specific Leaf Area, Jumlah Trikomata dan Kandungan Kalium Daun Semai Kakao (Theobroma cacao L.) Pada Kandungan Air Tanah Berbeda Prihastanti, Erma -
Bioma Vol. 13, No. 2, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.084 KB) | DOI: 10.14710/bioma, 13, 2, 85-90

Abstract

The existence of global warming caused the climate change such as the occurrence of long dry seasonsassociated with ENSO (El Nino Southern Oscillation). The climatologists predict these events will occur more oftenin the future. Cocoa plants require a relatively uniform distribution of rainfall in the year without a long dry season.The existence of drought stress can affect the rate of decline in the growth and development such as leaf expansionrate and decreased availability of nutrients in the root zone. This study aims to determine changes in specific leafarea (SLA), the number trichomes and K + content of leaves of cocoa seedlings at different soil water content. Thisstudy uses 36 cacao plants with 12-month-old were grown for two months on medium soil with soil water content of75%, 50% and 25%. Parameters observed are the SLA, the number trikomata and K+ content of leaves. The resultsshowed the age of 12 months of cocoa seedlings planted on different soil water content showed differences in SLA,trichomes and K+ content of leaves. The seedling grown optimum when planted on soil water content of 75%,whereas in 50% soil water content began to decline in growth with decreasing SLA and without leaves trichomes.The development and growth of seedlings declined sharply if planted in soil water content of 25%.
Induksi Kalus Binahong (Basella rubra L.) Secara In Vitro Pada Media Murashige & Skoog Dengan Konsentrasi Sukrosa Yang Berbeda Sitorus, Ertina Novaria; Hastuti, Endah Dwi; Setiari, Nintya -
Bioma Vol. 13, No. 1, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma, 13, 1, 1-7

Abstract

Binahong (Basella rubra L.) is a plant medicine consisting secondary metabolites which have virtue asmedicines for several diseases that could also be used as coloring agent. The medicine compounds in secondarymetabolites could be extracted from callus. Sucrose is one of the components that build MS (Murashige & Skoog)medium. Sucrose is important in in vitro culture, it functions as carbon and energy source for explant to grow. Thepurposes of this research are to study the effect of sucrose in MS medium towards B. rubra L callus formation andgrowth; to find the optimum sucrose concentration for callus B. rubra L formation; and also to find the fastestinitiation time to produce callus crumb. This research uses Complete Random Design (CRD) single factor method,i.e., sucrose concentration of 0 g/l, 10g/l, 20 g/l, 30 g/l, 40 g/l with five repetitions. The data is analysed withAnalysis of Varian (Anova) and if a real difference is found the analysis is continued with Duncan Multiple RangeTest (DMRT) with significancy level of 95%. The results show that various sucrose concentrations in MS mediuminfluences callus B. rubra L induction. The highest sucrose concentration, i.e. 40 g/l, which was added into MSmedium, could induce the maximum callus wet-weight of 1,69 g and the fastest callus initiation time of 4,8 day.
Isolasi Yeast Inulinolitik dan Optimasi Produksi Inulinase Pada Berbagai Konsentrasi Nitrogen Yeast Ekstrak Sebagai Sumber N -, Wijanarka -; Sutariningsih, Endang -; Dewi, Kumala -; Indrianto, Ari -
Bioma Vol. 13, No. 1, Tahun 2011
Publisher : Bioma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.472 KB) | DOI: 10.14710/bioma, 13, 1, 8-12

Abstract

Inulin is a linier fructose polymer of plant origin found in the Jerusalem artichoke, dandelion, dahlia tuberand several other members of the family Compositae. Inulin is one of the numerous polysaccharides of plant originthat contain glukose or fructose and that can be used in the food industry and in industrial fermentations as asubtrate. Fifteen yeast growing on inulin as the sole carbon and energi source. An inulinase activity in the liquidculture was measured with sugar reduction. The best optimization conditinos at concentration of 0.75% inulin and 12hour incubation time. On condition that the optimization of inulin activity produced 0.8772 IU by isolate P 12.These yeast have potential uses in the preparation of ingredient food prebiotic.

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