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Kota semarang,
Jawa tengah
INDONESIA
BIOMA
Published by Universitas PGRI Semarang
ISSN : 20865481     EISSN : 25499890     DOI : 10.26877
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Arjuna Subject : -
Articles 16 Documents
 1   2 
Search results for , issue "Vol 1, No 1, April (2011): Bioma" : 16 Documents clear
EFFECT OF PATTERN RATION WITH ADDITION OF SHRIMP WASTE AND SPINACH ON BODY WEIGHT INCREASE KAMPONG CHICKEN Fitriani Ulfatus Saadah; Mei Sulistyoningsih
Bioma : Jurnal Ilmiah Biologi Vol 1, No 1, April (2011): Bioma
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v1i1, April.82

Abstract

Chicken is one source of animal protein for humans. Chicken body weight can be used as one indicator of the amount of protein in the body of chicken. Therefore, efforts to increase body weight become very im-portant in poultry, especially kampong chickens. This study aims to determine the significance of the pattern of food ra-tions by the addition of shrimp waste and spinach to the increased weight of kampong chicken (Gallus bankiva) the most effective. The study was conducted in Semarang. The subjects were 60 chickens that are kept for eight weeks. The design used was completely ran-domized design (CRD) with four treatments and five replicates. Data analyzed by Anova. The results shows that the influence of ration patterns with the addition of shrimp waste and spinach of weight gain, which is very significant at 1% probability level. The highest mean is in D treatment (ration plus the waste of shrimp and spinach) The conclusion is, the pattern of the feed ration is very important in in-creasing kampong chicken body weight. If the pattern rations are proper, the addition of chicken body weight will reach the optimum. Waste shrimp and spinach can meet the nutritional needs of kampong chicken. Key words: kampong chicken, body weight, ration, wastes of shrimp, spinach
ACUTE TOXICITY TEST OF SOUR-SOP LEAF EXTRACT AS BIOPESTICIDE Harsoyo Purnomo; Afri Utami
Bioma : Jurnal Ilmiah Biologi Vol 1, No 1, April (2011): Bioma
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v1i1, April.27

Abstract

ABSTRACT Sour-sop (Annona muricata L) leaf extract is predicted that it can be used as biopes- ticide which is safe to environmental condition. But, toxicity acut test still important to do. The objective of this research is to estimate of the is exposure dose causing 50% mortality (96-h LD50 95% CI) to test orgasnism during 96 h. Toxicity tests with 50 Goldfish (Carassius auratus) were conducted in 20 liters test solution. Five mouthed jar contain 4 liters of test solution with different dose. At least 10 Goldfish weighing 3?óÔé¼ÔÇØ5 g were tested at each dose (0 ppm, 12500 ppm, 13250 ppm, 14000 ppm, and 14750 ppm). Toxicity data were analyzed by statistical linear regression with IBM SPSS Statistics 19. The result prediction with regression estimation was obtained logarithmic (log) va-lue scale?é?á interpolation LD50 is 4.142. Transforming (antilog) of this value was obta-ined 96-h LD50 95% CI = 13868 ppm. Conclusion, Sirsak leaf extract can be used as biopesticide with safety limit 1387 ppm. Key words: toxicity, sour-sop leaf extract, LD50, Carassius auratus, biopesticide.
DEVELOPMENT OF THE LEARNING TOOLS VISIONARY SETS MATERIAL COORDINATION SYSTEM Nurul Chotimah
Bioma : Jurnal Ilmiah Biologi Vol 1, No 1, April (2011): Bioma
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v1i1, April.83

Abstract

Teachers, as facilitators should be creative in designing the learning process. One design alternative that can be used is a learning process oriented SETS. The study aims to determine the role of learning in biological vision SETS in-crease student learning outcomes biology of MAN Lasem Rembang. Research is a research and development (R & D), Kemp model. The study was done in two stages. The first stage is the stage of development of the device and the second stage is the stage of real learning. The results showed an increase in student learning outcomes, activity, process skills, a positive response from students and teachers, and student learning outcomes. The conclusion is, the development of learning tools SETS vision was in-strumental and helpful in the learning process and student learning outcomes on the subjects of biology. Key words: learning tools, SETS, coordination systems, multimedia, learning outcomes
DEVELOPMENT OF THE LEARNING TOOLS OF BIOLOGY TEACHING MATERIAL WASTE MANAGEMENT ORIENTED ENTREPRENEURSHIP Prasetiyo .; Sumarno .
Bioma : Jurnal Ilmiah Biologi Vol 1, No 1, April (2011): Bioma
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v1i1, April.28

Abstract

ABSTRACT Waste management material on the subjects of biology can be used to enhance the values ?óÔé¼ÔÇ??óÔé¼ÔÇ?of entrepreneurship for students. Therefore, we need to develop relevant learning tools. The purpose of this research is to develop entrepreneurship-oriented learning tool which is effective to increase the values ?óÔé¼ÔÇ??óÔé¼ÔÇ?of students entrepreneurship. The study was conducted in SMA 11 Semarang (Semarang 11 th high school) with the subject of tenth grade students of the 2010/2011 school year. The type of research is the research and development (R & D). This research is used to produce certain products, as well as test the effectiveness of these products. Product to be produced is the learning tools of biology that include: instructional materials, lesson plans, syllabi and worksheets. The result showed that the resulting product has validity value of (Va.) = 4. The average score for syllabi, lesson plans, teaching materials and worksheets is = 4. In addition, the entrepreneurship learning interest of students in entrepreneurship-oriented waste management learning have increased 8.2% for ordinary regular classes and 6.4% for the excellent class. The conclusion is, the entrepreneurial-oriented learning tool developed is effective way to increase entrepreneurship interest in learning biology. Key words: waste, entrepreneurship, learning tools
THE EFFECT OF SEVERAL CONCENTRATIONS OF SAKAWA PLANT GROWTH REGULATOR ON SEED GERMINATION AND SEEDLING GROWTH OF LERAK (Sapindus rarak DC) ON COMPOST MEDIA Nurul Sumiasri; Dody Priadi; I.N.K. Kabinawa
Bioma : Jurnal Ilmiah Biologi Vol 1, No 1, April (2011): Bioma
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v1i1, April.84

Abstract

Study of the effect of several concentrations of plant growth regulator (Sa-kawa) on seed germination and seedling growth of lerak (Sapindus rarak D.C ) on compost media was carried out in the Plant and Animal Germplasm Garden of Cibinong. The objective of this study was to know optimum concentration of plant growth regulator on growth of lerak This study was arranged by using randomized complete design (RCD) with 3 (three) replications. The treatments of concentrations variation of plant growth regulator i.e.?é?á 0 (control), 1, 2 and 3 ml/l were used. Each treatment consists of 5 samples (individuals).. The results showed that?é?á the good concentration to the growth parameter?é?á such as growth percentage, plant height, total leaves, root length and total root were 2 ml of Sakawa in?é?á 1ml/l (one liter of water). Keywords: sakawa plant growth regulator, growth, seedling, Sapindus rarak compost
THE USE OF Cymbopogon nardus AS Aedes aegypti LARVASIDA Endah Rita S.D.; Dewi Ratna Ningtyas
Bioma : Jurnal Ilmiah Biologi Vol 1, No 1, April (2011): Bioma
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v1i1, April.79

Abstract

ABSTRACT Control of mosquitoes as vectors of disease is generally performed using synthetic pesticides, with all its negative impacts. So it takes an effort to obtain alternative materials which are more environmentally friendly but also effective in controlling insects that is botanical pesticides. This study aims at: 1) determining the correct dosage of ?é?áleaves extracts and stem of citronella as a botanical pesticide exterminator of?é?á Aedes aegypti mosquito larvae; ?é?á2) determining LD50 extracts of leaves and stems of citronella and safe limits for non target organisms. This research was done in Salatiga B2P2VRP Laboratory and the Laboratory of Organic Chemistry, Department of Chemistry, Faculty of Science, University of Diponegoro. The method used is a bioassay (biological assay) , i.e. acute toxicity testing of chemicals using the or-ganism as a test animal. Subjects were Aedes aegypti three sub stadium (instar) as test target animals, and Goldfish (Carassius auratus) as test animals are not the target. Data obtained from test animals actually target and non target animals were analyzed and interpreted by a simple linear regression analysis. The result showed?é?á that ?é?áLD100 Aedes aegypti larvae mortality was ?é?á24575 ppm, and the LD50 is amounted to 35000 ppm, then the safe limit for other non target organism (environment) is 3500 ppm. The conclusion is that citronella (Cymbopogon nardus) can be used as a botanical pesticide with a safe margin for other organisms is 3500 ppm. Key words: Cymbopogon nardus, larvasida, Aedes aegypti, LD50, Carassius auratus.

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