Bionature (Journal)
Not a member yet
184 research outputs found
Sort by
Perbandingan Hasil Belajar Biologi Siswa Antara Penggunaan Model Pembelajaran Kooperatif Tipe Bertukar Pasangan dengan Model Pembelajaraan Kooperatif STAD Pada Kelas VII SMP Negeri 24 Makassar
No full textThis research aim to know the comparison between the result of the student’s studying that is learned by using exchange couple type of cooperative learning model with STAD (Student Team Achievement Division) type of cooperative learning model for class VII State junior high school no 24 of Makassar. This research is included of Queasy Experimental research with post test group only design where class VII.7 as 1st experiment and class VII.8 as 2nd experiment class. This research is done in three times of learning process meeting and once evaluation test. Taking data is done by using the test of biology studying result and then analyzed descriptive and inferentially. The result is average value in the 1st experiment class is 62,35 and for 2nd experiment class is 72,38 and after hypothesis test is done with using t-test, so obtained thitung is 2,81 and ttabel 1,99. This result shows that there is difference of result student’s biology studying between the using of exchange couple type of cooperative learning model with STAD (Student Team Achievement Division) type of cooperative learning model, where the result of student’s studying that use STAD type of cooperative learning model is higher than exchange couple type of cooperative learning model. Keywords: exchange couple type of cooperative learning model, STAD (Student Team Achievement Division), result of studying
Analisis Kesesuaian antara Instrumen Evaluasi Formatif dengan Tujuan Kognitif Pembelajaran Biologi di SMP Negeri 1 Watansoppeng
Get PDFPenelitian ini merupakan penelitian deksriptif yang bertujuan untuk mengetahui kesesuaian antara instrumen evaluasi formatif dengan tujuan kognitif pembelajaran biologi pada semester genap tahun ajaran 2011/2012 di SMPN 1 Watansoppeng. Objek penelitian ini adalah rencana pelaksanaan pembelajaran kelas VII, VIII, IX pada semester genap tahun ajaran 2011/2012 di SMPN 1 Watansoppeng. Hasil pengumpulan data dari penelitian ini dianalisis dengan menggunakan analisis deskriptif dengan data persentase. Berdasarkan hasil analisis 186 pertanyaan formatif dan 105 tujuan pembelajaran pada level kognitif, 50 (27%) termasuk dalam kategori sesuai, 75 (40%) kurang sesuai, dan 61 (33%) tidak sesuai. Dengan demikian dapat dinyatakan bahwa tingkat kesesuaian antara instrumen evaluasi formatif dengan tujuan kognitif pembelajaran Biologi semester genap tahun ajaran 2011/2012 di SMP Negeri 1 Watansoppeng pada umumnya dikategorikan kurang atau tidak sesuai
Perubahan Biokimia dan Fisiologi Benih pada Berbagai Tingkat Kemasakan Buah Mengkudu
No full textThis research was conducted to provide Morinda seeds that have certain quality as plant ingredients through use of seed with physiologies ripe.This research was conducted in Green House and Experimental Farm of Biology’s Departement FMIPA if State University of Makassar (UNM that goes on February till August 2008. This test was using Random Plan Group (RPG) of one factor was ripe degree of seed with three levels,that is : old Greed Fruits Colours, Yellow Fruit Colors,and white Fruits Colors. The treatment was repeats according to location of the fruits that had taken that ware up branch, middle part branch, and down part branch. Biochemistry test was on water degrees (%), carbohydrate degrees (%) (Quantifying of sugar degrees, essence and fiber degrees), protein degrees (%), fat degrees (%), and ash degrees (%). Viability and vigor test was on dry seed weight (g), water seed degrees (%), and dry sprout weight (g), sprout power (%), and sprout speed degrees was 95%. Result of the test that the ripe degrees of old Green Fruits Colors was called M-1 Stadium, Yellow Fruits Colors was called M-2 Stadium, and white Fruits Colors was called M-3 Stadium. According to biochemistry changing and physiology so that can be known that M-2 Stadium seeds had Morphologies Ripe (MR), and M-3 Stadium seeds had Physiologies Ripe (PR) Keywords : morinda, seeds, ripe degree
Keragaman Morfologi Hydriastele (Palmae) Endemik Sulawesi di Kawasan Hutan Danau Matano, Soroako
Get PDFPenelitian ini bertujuan untuk mengetahui keragaman morfologi tumbuhan genus Hydriastele endemik Sulawesi, melalui analisis morfologi pada organ vegetatif maupun organ generatif. Manfaat yang diharapkan dari penelitian ini adalah diperoleh sejumlah informasi ilmiah berbasis data morfologi pada sejumlah spesies tanaman yang masuk ke dalam genus Hydriastele yang merupakan spesies Palmae endemik di Sulawesi. Metode yang digunakan adalah eksplorasi dan identifikasi. Eksplorasi dilakukan di kawasan danau Matano dan identifikasi terhadap karakter morfologi vegetatif dan generatif dilakukan di laboratorium biologi UNM. Hasil penelitian mengungkapkan bahwa terdapat 4 variasi morfologi Hydriastele yang ditemukan. Dua diantaranya telah diketahui sebagai jenis endemik Sulawesi yaitu Hydriastele kjellbergii dan Hydriastele microspadix, sedangkan satu jenis lainnya yang diusulkan sebagai jenis baru yaitu Hydiastele longipetalae, dan satu jenis lainnya yang mempunyai kemiripan dengan H. longipetalae tapi memiliki variasi warna yang berbeda pada pelepah, tangkai, dan rachis daun yang berwarna orange kemerahan
Daya Hambat Ekstrak Metanol Daun Sukun (Artocarpus communis Forst) terhadap Pertumbuhan Bakteri Pseudomonas aeruginosa dan Staphylococcus aureus Penyebab Infeksi pada Luka
No full textThis research is aimed to know the inhibiting capacity of methanol extact of Artocarpus communis Forst leaves to bacteria that causing infection on wound, i.e. P. aeruginosa and S. Aureus. Therefore, the sensitivity of both bacteria must be examined to methanol extract of Artocarpus communis Forst leaves. The sensitivity test was condsucted by paper disc method. The inhibition zone of methanol extract of Artocarpus communis Forst leaves was founded as a colourless zone that obtained after incubation for 24 hours. It is means P. aeruginosa and S. Aureus are sensitive to methanol extract of this plant. The inhibition zone is shown by methanol extract of Artocarpus communis Forst leaves toward bacteria coloni growth of P. aeruginosa and S. aureus that describing the linear increasing of consentration from 5% to 20%. It is shown that Artocarpus communis Forst leaves contains the activity compounds as antibacteria, especially P. aeruginosa and S. aureus.
Karakterisasi Isolat-isolat Beauveria Bassiana Galur Lokal Sulawesi Selatan
No full textBeauveria mildew is known as useful natural control agent, due to it’s infection potential agents for controlling insect. The range of its host covers broad range of insects order including Lepidoptera, Coleoptera, Hemiptera and Hymenoptera. In the past, the behavior of B.bassiana was identified based on morphological character, which is have weakness because of environmental effect so the fenotype performance does not manifest the genotype value. Another identification method can be used to complete morphological approach is identification based on physiological behavior (toxin production) and biochemical (protein and isoenzim) where the protein analysis and isoenzim, is order to minimize the influence of environment factor for identification. The research was conducted in Laboratorium Biology UNM, there is 11 isolates B.bassiana used in this research represent location and host. Isolates were analyzed by physiological and isoenzim using electrophoresis. The result of physiological character showed that out of 11 isolates characterized, there are isolates produced beauvericin, interestingly the rest isolates produced unknown on identified metabolites. Based on total band protein pattern and isoenzim showed that there are variation, isolates from the same area or district have more similarity characters than isolates from different area
Induksi Kalus Embriogenik Pada Wortel (Daucus carota L.) Menggunakan 2,4-Dichlorophenoxyacetic Acid (2,4-D)
Get PDFKalus yang dapat berkembang menjadi embrio somatik adalah kalus yang bersifat embriogenik. Kalus embriogenik dapat diinduksi dari suatu eksplan menggunakan senyawa-senyawa stressor atau perlakuan yang memberi cekaman. Penelitian ini bertujuan menginduksi kalus embriogenik pada wortel (Daucus carota L) menggunakan 2,4-D. Penelitian ini dilakukan dalam 2 tahap yaitu; (1) Tahap perkecambahan in-vitro, menggunakan medium ¼ MS; (2) Tahap induksi dan pemeliharaan kalus, menggunakan medium MS + 2,4-D 2 mg/L. Hasil penelitian menunjukkan biji wortel dapat berkecambah dengan baik pada medium ¼ MS dengan rata-rata persentase perkecambahan mencapai 98 % dan panjang hipokotil 3,84 cm. Efisiensi pembentukan kalus mencapai 90.83 %, Warna kalus umumnya putih bening atau putih kekuningan dengan tekstur friable atau remah. Ciri fisik ini merupakan ciri umum kalus yang bersifat embriogenik, yakni kalus yang dapat berkembang menjadi embrio somatik jika di sub kultur pada medium baru yang sesua
Peningkatan Hasil Belajar Biologi Siswa Kelas IX SMP Negeri 2 Bajeng Kabupaten Gowa Melalui Pembelajaran Kooperatif Tipe STAD pada Konsep Pertumbuhan dan Perkembangan
No full textThis research was classroom action research that have purpose to know increating of biology study result. Subject in this research is the ninth class, the amount of thirty five (35) students. This research is carried out during two cycle the result of research give description that there is taught by learning method of the type STAD cooperative in SMP 2 Bajeng of Gowa regency. Keywords: biology study result, cooperative learning, STAD
Pengaruh Perasan Daun Ubi Kayu (Manihot esculenta Crantz) terhadap Mortalitas Keong Mas (Pomacea canaliculata L).
No full textThis study was an experimental study, aimed to determine the effect of cassava (Manihot esculenta Crantz) leaf extract on golden apple snail (Pomacea canaliculata L) mortality and to determine the leaf extract concentration that provide best effect on golden apple snail mortality. The variables of this study were cassava leaf extract as independent variable and golden apple snail mortality as dependent variable. This study used complete random design, consisted of 6 treatments: K0 (without cassava leaf extract application), K1 (50 g/L), K2 (75 g/L), K3 (100 g/L), K4 (125 g/L) and K5 (150 g/L), each treatment had three repetitions using 10 snails in every treatment, so the total number of snails used was 6 x 3 x 10 = 180. The test performed in two steps, pilot test and real test to observe the LC50 and LT50 value with observation parameters including rate and number of golden apple snail mortality for 48 hours observation. The obtained data were analyzed using variance analysis Fα = 0,05 and probit analysis, continued with BNT α = 0,05. It was observed that cassava leaf extract had significant effect on golden apple snail mortality and mortality rate began at 4 hour application. Result of BNT α = 0.05 providing the best effect was concentration of 100 g/L (K3). LT50 value for cassava leaf extract was at 57.280 hours, with regression slope Y = -0,506 + 3,132X. Whereas the LC50 value was 88.716 g/L with regression slope Y = 7,997 – 1,762X. Keywords: golden apple snail (Pomacea canaliculata L)., Manihot esculenta Crantz and mortalit
Potensi Pembelajaran Berpola Pemberdayaan Berpikir Melalui Pertanyaan (PMBP) Dipadu Think Pair Share (TPS) Dalam Upaya Memberdayakan Keterampilan Metakognisi Siswa Multietnis Di SD Kota Ternate
Get PDFPenelitian ini bertujuan untuk mengetahui perbedaan potensi pembelajaran berpola Pemberdayaan Berpikir Melalui Pertanyaan (PBMP) dipadu Think Pair Share (TPS) dan strategi konvensional dalam memberdayakan keterampilan metakognisi siswa. Penelitian ini tergolong quasi experiment, dilaksanakan di kelas VI pada dua SD yang tergolong sekolah multietnis di Kota Ternate tahun ajaran 2011/2012. Pengukuran keterampilan metakognisi menggunakan rubrik metakognisi yang mengacu kepada Corebima. Analisis data untuk menguji hipotesis dilakukan dengan Anakova dalam program SPSS 16.0. Hasil analisis data menunjukkan bahwa pembelajaran berpola PBMP dipadu TPS lebih berpotensi meningkatkan keterampilan metakognisi siswa dibanding strategi konvensional. Tidak ada pengaruh etnis terhadap keterampilan metakognisi, namun hasil uji LSD menunjukkan adanya perbedaan keterampilan metakognisi siswa antara etnis