This research aimed at analyzing the influence of 'Process Oriented Guided Inquiry Learning' model assisted by realia media, in which it was to improve the scientific literacy and critical thinking skill of primary school students, especially for the material of energy. This quasi-experiment research used single factor independent groups design. The research sample of this research were fourth grade students of SD Inpres Oeba 2 Kupang City, East Nusa Tenggara Province, of which students were in the academic year of 2019/2020. The technique of sample collection was carried out purposive sampling for 2 classes. The IVA class was used as the experimental class (POGIL model assisted by the realia media), in which it consisted of 30 students and the IVB class was used as the control class (expository learning) that consisted of 28 students. The learning was carried out in four meetings. The data of scientific literacy and the results test of critical thinking were collected by means of objective test on the energy material. Multivariate Analysis of Variance (MANOVA) was used to analyze the data using significance level of 0.05. The results indicate that (1) There is a significant difference between the students' scientific literacy who gain the POGIL learning assisted by the realia media and the students' scientific literacy who get the expository learning; and (2) There is a significant difference between the critical thinking of students who get POGIL learning assisted by realia media and the students who get the expository learning. It can be concluded that there is a significant difference between the scientific literacy and the students' critical thinking taught by the POGIL learning that assisted by realia media to the students who use expository learning. Since there is a significant difference, it means that the POGIL learning assisted by realia media has an influence on the students' scientific literacy and critical thinking.
Abstract. Wahyudi D, Rifliyah K, Uslan. 2020. Genome evaluation of banana cultivars based on morphological character and Inter-Simple Sequence Repeat (ISSR) molecular marker. Biodiversitas 21: 2982-2990. This study aims to evaluate the genome group and to investigate the genetic variability of banana cultivar using morphological character and ISSR molecular marker. Fourteen banana cultivars with genomic group AA, AAA, AAB, ABB, and BB was used. All samples were Identified morphologically based on minimal descriptors for bananas issued by the International Plant Genetic Resources Institute (IPGRI). Total genomic DNA was extracted using DNA Isolation Kit Promega Wizard®. ISSR primer was used in this study, including UBC834, UBC835, UBC843, UBC848, and UBC855. Clustering analysis was used to evaluate genome grouping of the banana cultivar. Clustering analysis of morphological character was performed using the unweighted pair group method with arithmetic mean (UPGMA) algorithm and Bray-Curtis coefficient similarity using Paleontological Statistics (PAST) software. Morphological and ISSR was successfully differentiate banana cultivars and relatively similar to previous genome grouping. However, pisang Triolin (AAB) must be evaluated since it belongs to AAA group. The identification of cultivars and classification of their genome groups based on morphological characteristics and proved by molecular markers will strengthen the establishment of Musa improvement strategy especially in Indonesia and ease the breeder to identify desirable traits of progenitor to be included in the breeding program.
Abstract. Uslan, Pharmawat M. 2020. Genetic diversity of Sterculia quadrifida in Kupang, Indonesia based on RAPD (Random Amplified Polymorphic DNA) markers. Biodiversitas 21: 3407-3414. This study aims to determine the genetic diversity of Sterculia quadrifida R.Br. in Kupang based on RAPD markers. Samples of S. quadrifida were collected from the yard and community forest in Kupang City (Sub-districts of Oebobo, Kelapa Lima, Maulafa, and Alak) and mixed forest in the Kupang District (Sub-districts of Kupang Barat, Nekamese, Taebenu, and Fatuleu). DNA was isolated by the CTAB method and amplified by six RAPD primers (OPD-11, OPF-11, UBC-106, UBC-127, UBC-250, and OPB-04). The data were analyzed in the MVSP software using UPGMA method and Nei & Li similarity coefficient. Total of 131 DNA bands ranging from 250-1400 bp was obtained. Populations of S. quadrifida in Kupang were divided into two main clusters and 12 sub-clusters with. The highest genetic diversity was found in Kelapa Lima of 0.1050, while the lowest genetic diversity was found in S. quadrifida population in Fatuleu of 0.0305. The population of S. quadrifida in Kupang has high genetic diversity and also clustered based on their geographical distribution
Abstrak Faloak merupakan tanaman yang tumbuh di lahan kritis. Sebagai upaya mendukung pemuliaan dan konservasi tanaman faloak diperlukan informasi keragaman genetiknya. Salah satu metode analisis keragaman genetik adalah menggunakan penanda DNA yang berbasis PCR. Untuk itu diperlukan kondisi PCR (Polymerase Chain Reaction) yang tepat sehingga diperoleh hasil yang dapat dianalisis lebih lanjut. Penelitian ini bertujuan menentukan kondisi optimum PCR-RAPD (Polymerase Chain Reaction-Random Amplified Polymorphic DNA) tanaman faloak. Ekstraksi DNA dilakukan dengan metode CTAB. Optimasi dilakukan dengan menggunakan beberapa konsentrasi DNA cetakan dan MgCl2. Kondisi optimum PCR-RAPD tanaman faloak yang menghasilkan pita produk PCR yang jelas diperoleh menggunakan 50 ng/ul DNA, 3 mM MgCl2 serta jumlah siklus termal 45 x. Kata kunci : PCR-RAPD, optimasi, tanaman faloak Abstract Faloak is a plant that grows on critical lands. In an effort to support breeding and conservation of faloak, information about its genetic diversity is required. One of the methods of genetic diversity analysis is using PCR-based DNA markers. For that purpose, proper PCR conditions is needed in order to obtain results that can be further analyzed. This study aimed to determine the optimum conditions for PCR-RAPD of faloak plants. DNA extraction was conducted using CTAB. Optimization was done by using several concentrations of DNA templates and MgCl2. The optimum conditions of PCR-RAPD of faloak plants that produce clear band of PCR products were obtained using 50 ng/ ul DNA, 3 mM MgCl2 and 45x thermal cycles Keywords : PCR-RAPD, optimization, faloak plant
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