Revitalisasi dan Eksplorasi Kearifan Lokal (Local Wisdom) dalam Konteks Pembangunan Karakter Bangsa

Traditional culture, including local knowledge, a sign of backwardness and obstacles inachieving socio-economic progress. An opinion that further strengthen the polarization betweenindigenous innovation. Local culture (also often called cultural areas) is the term commonly used todistinguish a culture of national culture (Indonesia) and global culture. Local culture is a culture that isowned by the people who occupy a particular locality or region different from the culture of which isowned by the people who are in a different plac

Peramalan Produksi Kelapa Sawit Menggunakan Peubah Agroekologi di Kalimantan Selatan

Estimation on oil palm production is important for company planning. However, there are only few studies have been conducted in Kalimantan. The objective of the study was to identify agronomic and agroecological factors determined production of oil palm in Kalimantan. The study was conducted at PT Ladangrumpun Suburabadi, Minamas Plantation Angsana Estate, Tanah Bumbu District, South Kalimantan, Indonesia from February 15 to June 15, 2010. Data were collected from the company, government institutions and interviews with the company staffs. Results showed that seven parameters signifi cantly determined estimation of oil palm production. Out of 18 possible linier models, 6 models showed good fi t as predictor. The best modeling as predictor was determined by current plant age (in months), fertilizer application at 18 months before harvest (MBH), relative air humidity at 6 MBH (%), light intensity at 18 MBH (%), rainfall at 6 MBH (mm), level of water defi cit at 24 MBH (mm) and number rainy day at 18 MBH (days). It was expressed in equation Y = 3.15 + 0.010 age -0.016 fertilizer -0.016 light intensity -0.005 water defi cit -0.015 number of rainy day. This fi nding implies that recording data of agronomic and ecological factors are important for production estimation. Eventhough the model is best fi t to the study site, however, it needs further verifi cation when applied in larger area of the other sites in Kalimantan

Genetic Variations of Amorphophallus Variabilis Blume (Araceae) in Java Using AFLP

Amorphophallus variabilis Blume, a member of Araceae, is a native tuber crop in Java, Madura and Kangean Islands,Indonesia. The plant showed high variations in morphology. However, genetic variations at molecular level have not beenwell studied. Amplified fragment length polymorphism (AFLP) was carried out using 8 primers combination of EcoRI andMseI on 78 accessions collected from 28 sites in Java, Indonesia. Results showed that AFLP markers able to generatepolymorphism among accessions. A total of 220 polymorphisms were found. The differences among accessions at the geneticlevel were high, and 5 clusters were constructed. Grouping was independent of geographical origin, similar to clustering ofmorphological characteristic of flowers as in the previous report. Accessions from one site composed of one to four differentcluster groups, showed that variation in single site was observed. Regarding conservation program of the A. variabilis innatural population, it is reasonable to protect one bigger site rather than many small sites, but it should be recommended tomaintain conservation areas in several districts. Further study on population structure should be carried out to explain suchvariability

Representation and content in student's exam note sheets

Various forms of representation are used to understand physics concepts. This study aims to reveal the representations used by students in summarizing their physics teaching materials. The observed representations include mathematical equations, verbal statements and graphs. The participants were students who attended lectures in two academic years, namely 2016 and 2018. Students were permitted to freely write a summary of lecture material that would be used as resources during the exam. The research investigated the types of representations used and their percentages. In addition, the content in the summary was also taken into consideration. The results showed that the representation of mathematical equations or formulas, verbal explanations and graphs were used by 100%, 97% and 40% of the total students, respectively. This finding is also reflected in the percentage of paper area used in the summary; the uses of formulas are 60%, verbal explanations are 32.5% and the remaining 4.2% are graphs. Most note sheets contain almost all of teaching material. This students’ tendency should be considered for teaching strategy

Growth and Production of Amorphophallus paeoniifolius Dennst. Nicolson from Different Corm Weights

The effect of different seed corm weight on the growth and production of elephant foot yams (Amorphophallus paeonifolius Dennst. Nicolson) were studied. Two forms of corm with same weight were prepared, i.e., whole corm and vertically sectioned by 1/2. The fresh mass of each whole corm and corm section was the same. Six different corm weights were compared, i.e., 50, 100, 200, 500, 1000 and 2000 g. Growth and development of  elephant foot yam were determined by corm weigth, large seed corm produced larger leaf and fresh mass of daughter corms. On the contrary, number of leaf decreased with increasing seed corm weight. Plants from whole seed corms emerged earlier and they were larger than those from the sectioned corms, irrespective of weight. Plants from small sized whole corm emerged earlier than the larger ones. Dissecting the main bud caused the development of lateral buds, resulted in a delay of leaf emergence. The lower yield obtained by the use of sections might be related to the late emergence leading to shorter vegetative period in the field. In the cultivation, it is recommended to use whole seed corms of 100 or 200 g.   Key words :  Elephant foot yams, tuber crop, Araceae, corm weight, tuberization rat

Morpho-physiological Characterization and Genetic Diversity of Cocoyam Accessions (Xanthosoma sagittifolium (L.) Schott)

Tania or cocoyam (Xanthosoma sagittifolium (L.) Schott) is a member of Araceae; the cormels contain carbohydrate that is valuable in the food industry and to supports food security. However, information on the diversity in cocoyam accessions to support higher productivity and breeding program is still limited. The research aimed to characterize morpho-physiology and diversity of cocoyam accessions. The research was carried out from December 2018 to July 2019 at the Leuwikopo Experimental Farm, IPB Bogor. The research used seven accessions collected by the Agency for the Assessment and Application of Technology (BPPT) namely S8, S22, S27, S29, S31, S32, and S37. Accessions were maintained with a spacing of 50 cm x 50 cm under 50% shading net. Cluster analysis used the unweighted pair group method using the arithmetic average (UPGMA) method. The study showed that there was diversity in 31 of the 51 morphological and physiological characters. Of the 31 various variables, only 14 variables had a PIC value of more than 0.5. The color of the inner petiole and stomatal density were important characters in the characterization of cocoyam because it had the highest diversity. At the accession level, they were grouped into two groups, Group I had accession S29 members, and the rest were grouped into Group II. Group II had three subgroups, namely A (S8 and S32), B (S22, S27, and S31), and C (S37). Accessions S27 and S31 had a high degree of similarity. Keywords: Araceae, climate change, dry land, food security, tanniaTalas kimpul (Xanthosoma sagittifolium (L.) Schott) anggota Araceae merupakan salah satu sumber karbohidrat di daerah kering untuk ketahanan pangan. Hingga saat ini, kajian keragaman genetik kimpul untuk mendukung produktivitas dan kegiatan pemuliaan masih relatif terbatas. Penelitian bertujuan melakukan karakterisasi morfo-fisiologi dan mempelajari keragaman aksesi talas kimpul. Penelitian dilaksanakan pada Desember 2018 sampai Juli 2019 di Kebun Percobaan Leuwikopo, IPB Bogor menggunakan tujuh aksesi talas kimpul koleksi Badan Pengkajian dan Penerapan Teknologi (BPPT) yakni S8, S22, S27, S29, S31, S32, dan S37. Aksesi dipelihara di bawah naungan paranet 50% dengan jarak tanam 50 cm x 50 cm. Analisis klaster menggunakan metode unweighted pair group method using arithmetic average (UPGMA). Penelitian menunjukkan adanya keragaman pada 31 dari 51 karakter morfologi dan fisiologi. Dari 31 peubah yang beragam, hanya 14 peubah yang memiliki nilai PIC ≥ 0.5. Warna tangkai daun bagian dalam dan kerapatan stomata merupakan karakter penting dalam karakterisasi kimpul karena memiliki keragaman yang paling tinggi. Pada taraf Aksesi mengelompok menjadi dua grup, Grup I beranggota aksesi S29, dan sisanya mengelompok pada Grup II. Grup II memiliki tiga subgrup yakni A (S8 dan S32), B (S22, S27, dan S31), dan C (S37). Aksesi S27 dan S31 memiliki tingkat kemiripan yang tinggi. Kata kunci: Araceae, belitung, ketahanan pangan, lahan kering, perubahan ikli

Cassava growth and yield on ultisol of different soil organic carbon content and NPK fertilizer levels

The demand for cassava tuber in Indonesia is high, however, domestic production is still limited therefore increasing production is important. Ultisol soils have the potential for cassava production, but low soil fertility in such soils needs to be improved. The research aimed to evaluate the effect of soil organic carbon (SOC) and NPK fertilizer on the growth and yield of cassava tuber in an ultisol. The experiment was conducted at the Jonggol Experimental Farm, IPB Bogor, West Java from September 2022 to January 2023. The experiment used a split-plot design with three replications. The main plot was SOC level of 1.93 (control), 2, 3, and 4%, and the subplot was NPK 15-15-15 level of 150, 300, 450, and 600 kg ha-1. SOC level was increased through the application of cow manure 0, 3.59, 54.93, and 106.27 tons ha-1 corresponding to SOC levels of 1.93 (control), 2, 3, and 4%, respectively. Results showed that enhancing SOC up to 3% and NPK 300 kg ha-1 were enough to support cassava growth as shown by plant height, stem diameter, and leaf number. The leaf number was the highest in the 3% SOC+150 kg NPK, 2% SOC+300 kg NPK or+450 kg NPK, and control+600 kg ha-1 NPK treatment. Leaf greenness was only affected by adding NPK fertilizer; a high greenness value was obtained at NPK level of > 150 kg ha-1 and 300 to 600 kg ha-1 resulting in non-significantly leaf greenness. The status of N and K in the leaves increased by SOC and NPK treatments, while the P status was unaffected. SOC at a level of 3% and NPK at a level of 150 kg ha-1 stimulated cassava to produce the highest fresh tuber weight (1.85 kg per plant) at 4 months after planting. Cassava productivity in ultisol soil can be increased by applying cow manure of 54.93 tons ha-1 to enhance SOC up to 3% combined with NPK of 150 kg ha-1. Keywords: Extensification; food security; intensification; tuber production; nutrient uptak

LAPORAN INDIVIDU KEGIATAN PRAKTIK PENGALAMAN LAPANGAN (PPL) UNIVERSITAS NEGERI YOGYAKARTA DI SMA NEGERI 1 GAMPING

Praktik Pengalaman Lapangan (PPL) Universitas Negeri Yogyakarta semester khusus 2015 yang berlokasi di SMA Negeri 1 Gamping telah dilaksanakan oleh mahasiswa pada tanggal 10 Agustus 2015 sampai 12 September 2015. Kelompok PPL di lokasi ini berjumlah 26 mahasiswa yang terdiri dari 2 mahasiswa dari prodi Pendidikan Kimia, 2 mahasiswa dari prodi Pendidikan Fisika, 2 mahasiswa dari prodi Pendidikan Biologi, 2 mahasiswa dari prodi Pendidikan Matematika, 2 mahasiswa dari prodi Pendidikan Bahasa Inggris, 2 mahasiswa dari prodi Pendidikan Sosiologi, 3 mahasiswa dari prodi Pendidikan Seni Rupa, 2 mahasiswa dari prodi Pendidikan Jasmani Kesehatan Rohani, 2 mahasiswa dari prodi Pendidikan Ekonomi, 2 mahasiswa dari prodi Pendidikan Basa Jawa, 2 mahasiswa dari prodi Pendidikan Bimbingan Konseling, 2 mahasiswa dari prodi Pendidikan Geografi dan 1 mahasiswa dari prodi Pendidikan Sejarah. SMA Negeri 1 Gamping merupakan salah satu sekolah yang ditunjuk oleh pihak UNY untuk menjadi lokasi PPL Pendidikan Kimia pada tahun 2015. Tujuan dari program PPL Pendidikan Kimia adalah untuk memberikan pengalaman kepada mahasiswa dalam bidang manajerial dan pembelajaran di sekolah; memberikan pengalaman kepada mahasiswa dalam rangka melatih dan mengembangkan profesionalismenya dalam bidang keguruan atau pendidikan; memberikan kesempatan kepada mahasiswa untuk mengenal, belajar, dan memahami seluk beluk sekolah dengan segala permasalahannya; serta memberikan kesempatan kepada mahasiswa untuk menerapkan pengetahuan dan kemampuan yang telah dimiliki dalam proses pembelajaran. Selama kegiatan PPL, praktikan melakukan praktik mengajar mandiri dan terbimbing di empat kelas, yaitu kelas XA, XB, XC dan XD untuk mata pelajaran Kimia. Dari keseluruhan praktik mengajar, praktikan melakukan praktik mengajar sebanyak 12 jam per minggu dengan jumlah tatap muka sebanyak 38 kali selama kegiatan PPL. Selama PPL, praktikan juga menyusun program- program agar pelaksanaan PPL berjalan dengan lancar. Secara umum, program- program yang telah direncanakan dapat berjalan dengan baik dan lancar. Praktikan telah berusaha untuk menekan semua hambatan yang terjadi selama melaksanakan program kerja, sehingga program tersebut akhirnya berhasil dilaksanakan. Praktikan berharap, semoga laporan ini dapat bermanfaat bagi semua pihak yang terkait

The Potential of Social Capital in the Implementation of Payment for Environmental Services in Tawang Retention Pond

A high level of space and land utilization in the city of Semarang, Indonesia, has caused degradation of natural resources, both terrestrial and aquatic. In particular, the impact of flooding and high spring tides has worsened over time. Payment for Environmental Services (PES) is now being developed globally as a market-based instrument to attribute value to ecosystem, environmental and social services provided by natural resources, recognizing the value of social capital. Local networks and communities play important roles and have positive impacts on economic welfare and local development. The aim of this study is to analyse the potential of social capital as source of support in implementation of PES in Tawang Retention Pond. This research use mixed methods (both qualitative and quantitative approaches) to produce a more complete picture by combining and comparing information from different sources. The result shows that the characteristics of the community surrounding Tawang retention pond is included in a type of Bridging Social Capital which is characterized by a sense of spontaneous (reciprocity), mutual trust and social networks such as members of the SHGs (Self-Help Groups) who indulge in the activities of gathering, social funds that bridge the poor to join a self-help community groups. This qualitative result is strengthened by the results of correlation analysis where there is a significant correlation between social capital and PES with a coefficient of 59.5%. This means social capital is potentially an important factor in the application of PES.