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Bioma : Berkala Ilmiah Biologi

bioma
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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.

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Articles 6 Documents

Search results for , issue "Vol. 12, No. 2, Tahun 2010" : 6 Documents clear

Populasi Lychas mucronatus (Scorpiones:Buthidae) di Kampus Undip Tembalang Semarang. Rohman, Arief Fatkhu; Hadi, Mochamad -; Tarwotjo, Udi -
Bioma : Berkala Ilmiah Biologi Vol. 12, No. 2, Tahun 2010
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Scorpion is an animal that has a high adaptability in various environmental conditions. Lychas mucronatus isone species of scorpion of the Buthidae family, which can be found on Campus Diponegoro University, SemarangTembalang. No data population and the spread of L. mucronatus on the campus of Diponegoro University, SemarangTembalang. This study aims to assess the population of L. mucronatus on the campus of Diponegoro University,Semarang Tembalang. This research was conducted in October-November 2009 in the region Undip TembalangHyderabad campus. Samples were taken by hand collecting techniques directly in the field accompanied by an imagecapture scorpion on its habitat. L. population data mucronatus were analyzed descriptively. The results showed L.mucronatus found on campus Undip Tembalang were 22 specimens consisting of 15 females, 2 males, 1 juvenile,and 4 specimens of unknown gender. L. mucronatus females in this study more likely in because of male mortalityduring mating season. L. mucronatus was found in grassland and shrub habitats, fields, and around the tree, L.mucronatus occupy four types of microhabitat characteristics, namely: leaf litter, rotten wood, in the soil, and understones. L. mucronatus most common in grassland and shrub habitats with sloping contour with microhabitat under arock. The presence of predators and competitors are likely to be a factor not found in L. mucronatus in severallocations on campus Undip Tembalang.

Profil Kadar Kolagen Kulit dan Tulang Tikus Wistar pada Berbagai Umur yang Mendapat Perlakuan Stres Oksidatif Hiperkolesterolemia dan Oleoresin Kulit Batang Kayu Manis (Cinnamomum sp) Sunarno, Sunarno; Isdadiyanto, Sri
Bioma : Berkala Ilmiah Biologi Vol. 12, No. 2, Tahun 2010
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Oleoresin cinnamon bark belonging to the phenolic compounds that are known to have potential as antioxidants. On the basis of the potential of these compounds may be used to prevent or repair tissue damage, whether caused by the factors of age and condition of oxidative stress hypercholesterolemia. This study aimed to obtain skin and bone collagen profile of Wistar rats at various ages after oxidative stress treated hypercholesterolemia and oleoresin from the bark of cinnamon (Cinnamomum sp). This study used 54 male Wistar rats with body weight (200 Â± 5 g), which are grouped into six treatment groups combined with the three age groups of mice that is three, six or nine months with three replications. Each group received treatment oleoresin and hypercholesterolemia. Giving oral oleoresin conducted on rats given oral way during the 7 days with a dose of 12 rats mg/200-gr bw / day. Hypercholesterolemic rats was conducted by feeding cholesterol content within 1% during the two months. The results showed that the profile of skin and bone collagen content of the highest found on threemonth old rats treated with oleoresin, oleoresin hypercholesterolemia and given again (P6, 2), namely 57.44 tg / mg and 33.47 tg / mg, while the profile of skin and bone collagen content of the lowest found in rats aged 9 months to get treatment without treatment of hypercholesterolemia oleoresin (P2, 9), namely 28.26 tg / mg and 10.65 tg / mg. From this research can be concluded that the condition of hypercholesterolemia and duration of the aging effect on skin collagen levels decrease and bone, and vice versa oleoresin at the age of young rats that received the treatment of oxidative stress could repair or prevent hypercholesterolemia decreased content of skin collagen and bone. In general, the rats are treated oleoresin and young age profile of the collagen content of skin and bones better compared with rats that do not get treatment in conditions of oxidative stress oleoresin hypercholesterolemia.

Kandungan Klorofil Dan Pertumbuhan Semai Kakao (Theobroma cacao L.) Pada Perlakuan Cekaman Kekeringan Yang Berbeda Prihastanti, Erma -
Bioma : Berkala Ilmiah Biologi Vol. 12, No. 2, Tahun 2010
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Drought stress will result in decreasing the rate of water absorption by plant roots. This decrease will result indisturbances in plant growth, especially in a growing network includes the addition of Growth in dry mass, volume,length or area of cells resulting from the interaction of processes in plants through photosynthesis, respiration,transport, water relations and nutrient balance. Morphological and physiological responses of plants against stressand patterns of plant adaptation to different environments is very important especially for the purposes of cultivationand the prediction of the properties of responsive plant tersebut. Purpose of this research is to examine changes incontent klorofil a and b, and growth (number of leaves and plant height ) cocoa seedling age of 12 months atdifferent water stress.The study was conducted in the village of Plana Banyumas, Central Java Province, which lasted from January2007 to June 2008. Cacao tree used was 12 months in which the cocoa beans used for seeding of hybrid clonesderived from cocoa pods from the village of O, o Kulawi Donggala District of Central Sulawesi. Cocoa seedlingswere given three treatments of water stress that soil water content 75%, 50% and 25%. Observations of variablechlorophyll a and b,number of leaves and plant height after one month and two months of stress.The results showed drought effect on leaf chlorophyll content of seedlings of cocoa, where the plants grown on soilwater content of 50% have chlorophyll a and b are lower than those grown on soil water content 75%. The growth ofcocoa seedlings are best when planted with soil water content 75%, because the soil moisture content of 50% and25% of the number of leaves and plant height decreased

Uji Ekstrak Bawang Bombay sebagai Anti Bakteri Gram Positif Staphylococcus aureus dengan Metode Difusi Cakram Wuryanti, Wuryanti; Mulyani, Nies Suci; Asy'ari, Mukhammad; Sarjono, Purbowatiningrum Ria
Bioma : Berkala Ilmiah Biologi Vol. 12, No. 2, Tahun 2010
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Microbe is a microscopic living organism which is closely linked to human life. One of pathogenic microorganisms such as Staphylococcus aureu,. may cause diseases. Sulfure of several plants are bioactive as antimicrobial. The properties of sulfure in Allium cepa L leads to an assumption that it has antimicrobial properties. Therefore, this study involved the antimicrobial test. The determination steps of antimicrobial Allium cepa L extract consisted of the Allium cepa L extract preparation, microbial regeneration and antimicrobial test. The antibacterial determination were performed by paper disc method. Based on the research data, determination of antimicrobial Allium cepa L extract resulted in inhibition zone area showed that the extract owned antimicrobial property.

Kompetisi Gulma dan Tanaman Wortel pada Perlakukan Pupuk Organik dan Effective MicroorganismsÂ® Utami, Sri -; Rahadian, Rully -
Bioma : Berkala Ilmiah Biologi Vol. 12, No. 2, Tahun 2010
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

A weed is a plant that is considered to be nuisance and unwanted plant in human-controlled settings,especially farm field and garden. The weed that grow in surrounding of crop could decrease yield due to competitionoccur between weed and crop on nutrition, sunlight and water. Organic farming system which has been developednowadays is an environmental friendly organic farming system. The objective of this research is to determine weedcompetition on carrot using several kinds of organic fertilizer. Six treatments were used in this research, i.e., greenmanure, combination of green manure and EM, EM alone and control (without manure and EM). The weed wasgrowth together with carrot for 3 months. The parameters are wet weight and dry weight of carrot per meter square.The results show that manuring could increase weed competition which in turn wet weight and dry weight of carrotare decreasing. The highest competition between carrot and weed occurred in the treatment of combination betweenorganic manure which combines with EM. The added EM on organic manure could increase weed competition oncarrot.

Pengaruh Perbedaan Konsentrasi Pupuk Organik Cair tehadap Produksi Bawang Merah (Allium ascalonicum L) Setiyowati, Setiyowati; Haryanti, Sri; Hastuti, Rini Budi
Bioma : Berkala Ilmiah Biologi Vol. 12, No. 2, Tahun 2010
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Shallot is one an important of vegetable comodity, both in economic value and nutrition ingredients. One of an effort to support the increasing of shallot yield with plantation technology by giving organic liquid fertilizer. The experiment we studied to find out the effect of organic liquid fertilizer with different consentration on yield of shallot. The experiment used Completely Randomized Design consisted 6 consentration of organic liquid fertilizer 0 ml/L (P0), 1 ml/L (P1), 2 ml/L (P2), 3 ml/L (P3), 4 ml/L (P4), 5 ml/L (P5) with 4 replication. The results show that consentration of 4 ml/L organic liquid fertilizer is increas the number of bulb and consentratin of 5 ml/L is increas in tuber wet weight.

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