Laporan Penelitian Hubungan Soal Ujian Sebagai Alat Evaluasi Belajar Dengan Tujuan Instruksional Pada Modul Sebagai Bahan Belajar

Tujuan dari penelitian ini adalah untuk memperoleh gambaran bagaimana hubungan soal-soal ujian sebagai alat evaluasi belajar dengan tujuan instruksional yang ada pada modul, dan untuk memberi masukan bagi pengembangan soal-soal ujian ataupun modul yang ad

Efektivitas Beberapa Jenis Insektisida Nabati Terhadap Hama Kutu Beras (Sitophilus oryzae L.) pada Beras Siam

This research was conducted to determine the effectiveness of using several type of botanical insecticides and types of botanical insecticides that are more effective against rice weevil pests (Sitophilus oryzae L.) on siam rice. The method used in this research was the Completely Randomized Design (CRD) method which consisted of 6 treatments, each of which was repeated 4 times so that there were 24 experimental units. The treatment is a type of botanical insecticide consisting of P0 = Control (no botanical insecticide), P1 = 7.5 g of breadfruit leaf flour, P2 = 7.5 g of guava leaf flour, P3 = 7.5 g of noni leaf flour, 5 g, P4 = 7.5 g kaffir lime leaf flour and P5 = 7.5 g papaya leaf flour. The results of the research showed that several types of botanical insecticides used, namely breadfruit leaves, guava, noni and papaya, were not effective in controlling rice weevil pests (≤50%) but had the ability to reduce mortality, efficacy and speed of death of rice weevil pests (Sitophilus oryzae L.) and loss of rice weight. The most effective type of botanical insecticide in controlling the rice weevil pest (Sitophilus oryzae L.) is kaffir lime leaves with efficacy and mortality values ​​of 68.75%, pest death rate of 0.69% and rice weight loss percentage 0%

The Effect of Methyl Eugenol Block Plus on Bactrocera dorsalis Complex Total Captured in Chili Plantation

Fruit flies (Bactrocera spp.) are an important pest for horticultural crops, especially fruits and vegetables. One of the most effective and eco-friendly methods to control male and female fruit flies is by usingtraps that use Methyl Eugenol (ME) block plus fruit essence as an attractant. The purposes of this research were to acquire the most effective formulation of ME Block plus fruit essence to catch the most male and female fruit flies on the chili plantation and to detremine the increase in total of fruit flies caught. This research started from December 2017 to January 2018 at Cibeureum Village, Sukamantri District, Ciamis Regency, West Java Province. The research was conducted using a randomized block design consisting of 8 treatments and 3 repetitions. The treatments consisted of adding fruit essence to the ME block: 2 ml of ME on cotton; 2 ml of ME block; 2 ml of ME block + 4 ml of mango essence; 2 ml of ME block + 4 ml of orange essence; 2 ml of ME block + 4 ml of guava essence; 2 ml of ME block + 4 ml of star fruit essence; 2 ml of ME block + 4 ml of chili essence; Antilat (Organic pesticide) as a comparison. The results showed that ME block plus fruit essence has increased the total of male fruit flies caught, but it did not attract female fruit flies. The best combinations with the highest average of male fruit flies caught were ME block plus orange essence with 750.67/5 week, followed by ME block plus chili essence with 746.00/5 wee

Potensi Penambahan Bahan Organik Terhadap Sporulasi dan Infektivitas Beauveria Bassiana Pada Larva Oryctes Rhinoceros

This study aims to determine the potential for adding organic matter in this case the effect of differences in media composition on the growth and sporulation of B. bassiana and in the infectivity of Beauveria bassiana against the larvae of rhino beetle pest (Oryctes rhinoceros). The experiment was carried out using a Completely Randomized Design (CRD) with 2 series, namely: a). Different types of growing media (M) on  B. bassiana consisted of 6 treatments P1: PDA (Potato Dextrose Agar) media; P2: SDYA Media (Sabouraud Dextrose Yeast Agar) + mineral water; P3: SDYA media + coconut water, P4: SDYA media + coconut water + cricket flour 10%; P5: SDYA media + coconut water + grasshopper flour 10% ; P6: SDYA media + coconut water + 10% chicken eggshell flour where each treatment was repeated 5 times b). The application of B. bassiana on O. rhinoceros larvae consisted of 7 treatments, namely P0, P1, P2, P3, P4, P5 and P6, each treatment repeated 4 times. The fastest growth in diameter of B. bassiana was found in SDYA media + eggshell flour but treatment SDYA + coconut water + cricket flour  (P4) had the highest percentage of fungus germination and  had the highest density of B. bassiana spores, also had highest mortality percentage to suppress O. rhinoceros. The latest finding that has not been found by other researchers before is the discovery of modified SDYA + coconut water media with the addition of chicken egg shell flour to accelerate the growth of B. bassiana and SDYA + coconut water + cricket flour media to promote spore germinations of B. bassiana and increases the ability to suppress of O. rhinoceros

PREPARING UNIVERSITAS TERBUKA FOR A WORLD-CLASS UNIVERSITY THROUGH INTERNATIONAL RANKING SYSTEM

Universitas Terbuka (UT) aims at achieving a world class standard. As one of the criteria of a world class university is the world ranking, it is planned that the university should achieve a high position within the ranking. At present, the ranking systems are the Shanghai Jiao Tong University (SJTU) and Times Higher Education Supplement (THES). Positions of open universities in world university ranking are in the lower tier, both according to the THES and SJTU. However, ranking have a positive impact toward universities. Hence, it is possible that through the effort of achieving a high ranking, UT will have the benefit of improving its quality of services toward its stakeholders. If it is possible that ranking system criteria also fits the achievement of quality, there should be an advantage of gaining a high position in world ranking for UT. Therefore the question is how to improve the position of an open university within the international university ranking. Although the main priority of UT mission is to provide access of quality education to those who for some reason cannot attend conventional education, UT has opportunities for improving its rank among world university ranking. The advantage of the ranking is that it can support the effort to become a world class university. UT should improve international cooperation, both in teaching and research, while the research activities should be improved, both in its quality and its publications in accredited international journals. Lastly, the effort for achieving a high position in world ranking should not ignore the main mission of UT to provide access to education

DETEKSI DAN IDENTIFIKASI JAMUR PATOGEN TERBAWA BENIH VARIETAS PADI LOKAL DI KABUPATEN KAPUAS: (Detection and Identification of seedborne pathogenic fungi in Local Rice Varieties in Kapuas Regency)

This study was aimed to detect and identify seed-borne pathogenic fungi in six local rice varieties of Siam Unus, Karangdukuh, Mayang, Gumpal Kuning, Gumpal Putih, and Siam Arjuna in Kapuas Regency. In addition, the objective of this study was also to determine the effect of seed pathogens on the physiological quality and the percentage of infected seeds. The research location was at the Agricultural Cultivation Laboratory, Faculty of Agriculture, University of Palangka Raya, and the study was carried out from September 2020 to February 2021. Seed health testing used the filter method (blotter test), isolation and identification of seed-borne pathogenic fungi using the agar method. The variables observed included macroscopic morphology of pathogens in petri dishes and microscopic evaluation using a compound microscope, seed germination, percentage of infected seeds, frequency of microorganism findings and pathogenicity tests on seed germination. Based on the results of the study, the identified pathogenic fungi carried by local varieties of rice seeds in Kapuas district were Aspergillus spp., A. flavus, A. niger, Curvularia sp. and Oidium sp., however these pathogens did not affect seed germination. The highest numbers of microorganisms observed on the agar method was Aspergillus spp. (37.5%), followed by Curvularia sp. (29%), whereas in the blotter test method the frequency of the fungus Curvularia sp. only 5.6%. The frequency of finding A. flavus and A. niger on the agar method was lower at 21.8%, while the fungus Oidium sp. was detected in very low percentage for only 0.9%. The pathogenic fungus Oidium sp. showed the highest level of pathogenicity in seeds reaching 21.7%, while the pathogenic A. niger, Curvularia sp. and A. flavus showed a lower infection rate, at 13.9% to 17.8% respectively. These pathogenic fungi might cause the seeds to not germinate normally such as leading to necrosis of the hypocotyl and plumules, stunted germination growth, and death of seed germination. Keywords: Detection, identification, seed-borne pathogens, local rice varieties, Kapua

Efektivitas Penghambatan Ekstrak Tumbuhan Obat Lokal Terhadap Pertumbuhan Colletotrichum Gloeosporioides Penyebab Penyakit Bercak Daun Alpukat

Penyakit bercak daun alpukat (Colletotrichum gloeosporioides) sangat merugikan, serangan penyakit terjadi pada daun, ranting, bunga dan buah hingga ke penyimpanan dan pemasaran.  Pengendalian penyakit tanaman yang bersifat ramah lingkungan dan aman bagi kesehatan dapat dilakukan menggunakan tumbuhan obat lokal, namun informasi penelitian tentang hal ini belum banyak.  Penelitian bertujuan untuk engetahui mengetahui efektivitas penghambatan tumbuhan obat lokal yang efektif menekan pertumbuhan jamur patogen C. gloeosporioides penyebab penyakit bercak daun tanaman alpukat secara in vitro.  Perlakuan terdiri dari 4 taraf konsentrasi ekstrak tumbuhan obat lokal yaitu: P0 (kontrol tanpa ekstrak), P1 (ekstrak pasak bumi 5%), P2 (ekstrak pasak bumi 10%), P3 (ekstrak pasak bumi 15%), P4 (ekstrak pasak bumi 20%), P5 (ekstrak akar kuning 5%), P6 (ekstrak akar kuning 10%), P7 (ekstrak akar kuning 15%), P8 (ekstrak akar kuning 20%), P9 (ekstrak umbi hati tanah 5%), P10 (ekstrak umbi hati tanah 10%), P11 (ekstrak umbi hati tanah 15%), P12 (ekstrak umbi hati tanah 20%), P13 (ekstrak umbi sarang semut 5%), P14 (ekstrak umbi sarang semut 10%), P15 (ekstrak umbi sarang semut 15%) dan P16 (ekstrak umbi sarang semut 20%).  Hasil penelitian menunjukkan ekstrak akar pasak bumi pada taraf konsentrasi 20% sangat efektif menghambat pertumbuhan diameter koloni jamur C. gloeosporioides dengan efektivitas penghambatan 94.4%, dan efektif menghambat perkecambahan spora sebesar 6.81%

Foto rongga mulut:langlais & kasle

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Halitosis: nafas tak sedap

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