The aim of the research is to increase students’ learning motivation in learning classification of living things subject by using android-based biology educational game that accompanied with e-module. The type of this reserach is is a... more
The aim of the research is to increase students’ learning motivation in learning classification of living things subject by using android-based biology educational game that accompanied with e-module. The type of this reserach is is a quasi-experiment research with nonequivalent control group design that concluded in at SMP N 3 Sragen, Central Java. The population of this study were the grade VII students of SMP N 3 Sragen in 2020/2021 academic year with the students of VII A class as the experimental class and the students of VII B class as the control class. Instrument that uses in this research is questionnaire. The control class only using google form as the learning medium, while the experimental class using google form that added by android-base biology educational game with e-module. The result shows that students learning motivations in the experimental class from 76,18 to 90,23, while in control class also increase from 74,73 to 82,14. Therefore, it can be concluded that th...
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Kekurangan air menyebabkan lahan dalam kondisi cekaman kekeringan sehingga pertumbahan tanaman dapat terhambat. Mikoriza merupakan biostabilizer yang dapat ditambahkan untuk tanaman bertahan. Penelitian ini bertujuan untuk mengetahui... more
Kekurangan air menyebabkan lahan dalam kondisi cekaman kekeringan sehingga pertumbahan tanaman dapat terhambat. Mikoriza merupakan biostabilizer yang dapat ditambahkan untuk tanaman bertahan. Penelitian ini bertujuan untuk mengetahui pengaruh serta ada tidaknya interaksi pemberian mikoriza dan Trichoderma sp., terhadap pertumbuhan tanaman bawang merah varietas Crok Kuning (Allium cepa L. Aggregatum group) pada berbagai variasi frekuensi penyiraman. Jenis penelitian merupakan eksperimen dengan model Rancangan Acak Lengkap (RAL) dengan dua faktor yaitu pemberian mikoriza (tanpa mikoriza, mikoriza, Trichoderma sp., kombinasi mikoriza + Trichoderma sp.) dan variasi frekuensi penyiraman (setiap hari, 3 hari sekali, dan 6 hari sekali). Parameter pertumbuhan yang diamati adalah tinggi tanaman, jumlah daun, panjang akar berat segar dan kering daun, umbi, akar, dan persentase infeksi mikoriza. Analisis data menggunakan uji Two-Way ANOVA varian faktorial dilanjut uji Duncan apabila perlakuan ...
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This research aims to determine optimum combination of addition 2-iP and 2,4-D with different concentration and the nodus position for induction Dendrobium Red Emperor ‘Prince’ axial shoots. The research employed a CFR design with two... more
This research aims to determine optimum combination of addition 2-iP and 2,4-D with different concentration and the nodus position for induction Dendrobium Red Emperor ‘Prince’ axial shoots. The research employed a CFR design with two factors, namely: variation of combined concentration 2-iP and 2,4-D (A: 1 ppm 2-iP + 2 ppm 2,4-D; B: 2 ppm 2-iP + 1,5 ppm 2,4-D; C: 3 ppm 2-iP + 1 ppm 2,4-D; D: 4 ppm 2-iP + 0,5 ppm 2,4-D) each treatment was repeated 6 times and the nodal position (top, middle, bottom). The basic medium is NP+CW. The axillary bud growth is measured based on the time of bud emerge, shoot growth, explant percentage which form axillary bud, root growth, and plantlet wet weight. Data obtained were analyzed using ANOVA and continued with DMRT 5%. Results show that B treatment give fastest bud emerging time, and highest stem diameter, buds height, leaves length, leaves width, roots length. A treatment shows best results on shoots number, plantlet wet weight, number of leaves...
Movement system material learning requires direct experience to find concepts and associate them with the real world. The need for teaching materials based on local culture in learning biology is one of the important needs to bring... more
Movement system material learning requires direct experience to find concepts and associate them with the real world. The need for teaching materials based on local culture in learning biology is one of the important needs to bring students in traditional knowledge and values in the community environment. The purpose of this study was to analyze the motions of starling's lawu dance as a learning resource in the movement system material for grade VIII Junior High School students. This research is a type of exploratory descriptive research. The informant of this study was a science teacher at Junior High School. Data collection techniques were carried out by interviews, FGDs, and assessment of the feasibility of learning resources. Data analysis techniques are used in descriptive research through the stages of data reduction, data presentation, and data conclusion. The results of the study show that there are 22 motion vectors for the starling lawu dance which have the potential t...
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This study aims to; 1) Determine the effectiveness of PBL brainwriting method supplemented with the concept on improving students' critical thinking skills; 2) Determine the effectiveness of PBL with brainwriting method supplemented... more
This study aims to; 1) Determine the effectiveness of PBL brainwriting method supplemented with the concept on improving students' critical thinking skills; 2) Determine the effectiveness of PBL with brainwriting method supplemented with concept mapping on improving students' problem solving; 3) Determine the effectiveness of PBL brainwriting method supplemented with concept mapping on improving students' critical thinking and problem solving skill simultaneously; and 4) To determine the relationship between critical thinking and problem solving. This type of research is a quasi experiment, sampling using a cluster sampling technique. The instruments of this study used test questions on critical thinking ability and problem solving ability. The results of the study with the MANOVA test showed that there was a significant simultaneous effects PBL model of the brainwriting method supplemented with concept mapping on critical thinking and problem solving skills, the PBL mod...
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Research Interests: Horticulture and Biology
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Pembangunan sektor sumber daya manusia memiliki arti yang sangat penting dalam rangka upaya memacu pembangunan masyarakat Indosesia secara berkelanjutan. Pembangunan manusia bukan sededar terfokus pada penyiapan tenaga ahli, siap dan... more
Pembangunan sektor sumber daya manusia memiliki arti yang sangat penting dalam rangka upaya memacu pembangunan masyarakat Indosesia secara berkelanjutan. Pembangunan manusia bukan sededar terfokus pada penyiapan tenaga ahli, siap dan terampil sebagai pelaku pembanguanan wawasan berpikir, yaitu penghayatan pembangunan berwawasan lingkungan.
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A number of Spathoglotis plicata mutant orchids were derived from in vitro culture of X-ray irradiated seeds obtained from previous studies. This study aims to identify the physiological and molecular characteristics of the S. plicata... more
A number of Spathoglotis plicata mutant orchids were derived from in vitro culture of X-ray irradiated seeds obtained from previous studies. This study aims to identify the physiological and molecular characteristics of the S. plicata mutant orchid. There were 4 groups of mutant orchids corresponding to the irradiation dose of 6, 12, 18 and 24 rad and 1 wild type group as a control. Observations on physiological variations such as the rate of photosynthesis, chlorophyll content, water conductance, transpiration, total protein and catalase activity were carried out. The chlorophyll content was measured using the Winterman and De Mots method, while the rate of photosynthesis and other related parameters were measured with a Li-Cord-6400 photosynthesis gauge. Molecular characterization was observed from the protein content and catalase activity. Protein content was measured using the Bradford method with bovine serum albumin (BSA) as a protein standard, while the catalytic activity of ...
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The development of S. plicata orchid variants is important to increase their genetic diversity. This study aims to determine the genetic diversity of S. plicata orchid variants based on RAPD analysis. The research sample was 15 plant... more
The development of S. plicata orchid variants is important to increase their genetic diversity. This study aims to determine the genetic diversity of S. plicata orchid variants based on RAPD analysis. The research sample was 15 plant variants consisting of wild type and mutant orchid variants. Molecular characterization was used to identify the genetic diversity of orchid variants based on the PCR-RAPD using eight universal primers from the screening results. The DNA amplicon electropherogram from RAPD results was converted to binary data and analyzed with GenAlex 6.1 to obtain the genetic distance, scatter diagram, and the percentage of DNA polymorphism. The data were also analyzed using NTSYS ver.2.2 to obtain a dendrogram cluster using the Unweighted Pair-Group Method using Arithmetic Average (UPGMA). The results showed that DNA polymorphism was found in the wild-type and mutant orchid variants. The percentage of DNA polymorphism of mutant orchid groups was greater than that of w...
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Tujuan penelitian ini adalah mengetahui pengaruh kombinasi penambahan air kelapa dan vitamin B1 terhadap pertumbuhan anggrek D. nobile serta mengetahui konsentrasi vitamin B1 yang optimum untuk pertumbuhan anggrek D. nobile pada media... more
Tujuan penelitian ini adalah mengetahui pengaruh kombinasi penambahan air kelapa dan vitamin B1 terhadap pertumbuhan anggrek D. nobile serta mengetahui konsentrasi vitamin B1 yang optimum untuk pertumbuhan anggrek D. nobile pada media kultur in vitro berbasis pupuk. Penelitian ini merupakan penelitian eksperimen dengan menggunakan rancangan tersarang (nested design) dimana faktor I adalah perlakuan air kelapa (dengan air kelapa dan tanpa air kelapa) dan faktor II adalah variasi konsentrasi vitamin B1 (0 ml.L-1, 0,25 ml.L-1,0,5 ml.L-1, dan 1 ml.L-1). Sampel anggrek yang digunakan adalah bibit anggrek D. nobile (umur 11 bulan) dalam kultur in vitro yang mempunyai keseragaman karakter pertumbuhan (memiliki dua daun dan belum memiliki akar). Pertumbuhan anggrek D. nobile diukur berdasarkan pertambahan jumlah daun, jumlah akar, jumlah tunas, panjang daun, panjang akar, tinggi tanaman, diameter batang, diameter akar, dan berat basah tanaman pada umur 10 minggu setelah subkultur. Data pene...
Research Interests: Horticulture and Biology
This study was aimed at determining and comparing the effectiveness of project-based learning and 5E learning cycle instructional models in improving the acquisition of new biological knowledge related to the human immune system. This... more
This study was aimed at determining and comparing the effectiveness of project-based learning and 5E learning cycle instructional models in improving the acquisition of new biological knowledge related to the human immune system. This quasi experiment study with a pretest-posttest non-equivalent control group design was conducted in SMAN 1 and SMAN 8 Yogyakarta, Indonesia during the academic year 2018/2019. A cluster sampling technique was used to select 3 eleventh grade classes of natural science from each school. The criterion referenced essay test was used to measure the students’ learning achievements and the data collected were analyzed using SPSS version 23. The results show that both PjBL and 5E learning instructional models were effective to improve the students’ ability to acquire new biological knowledge related to the human immune system. PjBL model was more effective than 5E learning cycle model in improving the students’ ability to acquire new biological knowledge relat...