Green leafhopper (GLH), Nephotettix virescens, is the most efficient vector of rice tungro virus disease. The disease is endemic in some provinces of Indonesia and commonly con-trolled using resistant varieties. Resistance of rice varieties to tungro could be classified into resistance to a virus and a vector. The history of GLH resistant varieties adoption affected the GLH adaptation in an area. The study was conducted in the period of 2009-2011 to evaluate the resistance status of five GLH resistant rice variety groups (T0-T4) using survival and transmission test. The GLH populations were collected from 15 tungro endemic provinces in Indonesia. The GLH was then reared in the greenhouse before used for the test. The degree of resistance to tungro viruses was calculated by adding the value of survival (weight x score of survival rate) and virus transmission rate (weight x score of transmission rate). The weights for survival and transmission rate were set to 40 and 60, respectively. The results showed that the rank of resistant variety groups in decreasing order of resistance were T4, T1, T2 and T3. Five variations in GLH transmission efficiency were identified, i.e. 170, 070, 050, 030 and 010. GLH populations from Bali and West Nusa Tenggara were the most efficient vector for rice tungro virus. We concluded that there were diversities in the degree of resistance among GLH resistant varieties. Variation in virus transmission efficiency (biotype) among GLH populations collected from various tungro endemic areas closely related to the history of adoption of rice varieties.
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This study aims to develop the character of early childhood by using cultural malaybased traditional games. The children's world is synonymous with the playing world so that learning is more easily absorbed by children through play. Traditional games are very important to be introduced so children can find out games that have been around for generations. Children are introduced to traditional games that elevate Malay culture. The Malay culture is a characteristic of the Lancang Kuning earth, so that it became the Riau Vision and Mission in building its territory in reference to Malay Culture. In addition, through Malay culture children are educated in character building. The character of children is shaped according to Malay culture which is full of morality and religion. Child character development is very important to be formed early because character is permanent and inherent in children to adulthood. This study belongs to the category of descriptive research which describes the data relating to the formulation of the problems examined in this study. Data collection used in this study was carried out by total sampling technique. This research uses a Likert scale, namely from the results of observations and interviews. Then, the data analysis technique used is descriptive technique.
Penelitian ini bertujuan untuk meningkatkan kemampuan mengenal huruf hijaiyah anak melalui media gambar. Penelitian ini merupakan Penelitian Tindakan Kelas yang dilaksanakan di kelas B PAUD Duta Raudha Center Riau, dengan jumlah subjek penelitian 19 anak. Instrumen yang digunakan adalah pedoman observasi. Berdasarkan hasil penelitian ini, kemampuan mengenal huruf hijaiyah anak dapat ditingkatkan dengan menggunakan media gambar. Hasil pada siklus I diketahui terdapat peningkatan kemampuan mengenal huruf hijaiyah dibandingkan dengan sebelum tindakan. Pada siklus II diperoleh persentase lebih besar dan berada pada kriteria Berkembang Sangat Baik, dimana telah mencapai indikator keberhasilan yang telah ditetapkan. dengan demikian dapat dikatakan bahwa kemampuan mengenal huruf hijaiyah anak kelas B PAUD Duta Raudha Center Riau dapat ditingkatkan melalui media gambar
Penelitian ini didasari dengan perlunya pemimpin memiliki kompetensi manajerial dan kemampuan demokratik. Kedua hal ini menarik untuk dikaji pada suatu penelitian. Penelitian ini bertujuan untuk melihat pengaruh kompetensi manajerial dan kepemimpinan demokratik kepala sekolah terhadap kinerja guru melalui motivasi kerja sebagai variabel intervening. Metode Penelitian ini menggunakan metode kuantitatif dengan analisis deskriptif dan verifikatif. Penelitian dilaksanakan di MTs yang ada di Kecamatan Bukit Batu Kabupaten Bengkalis dengan sampel sebanyak 50 sampel. Teknik pengumpulan data pada penelitian ini dengan melakukan penyebaran kuesioner, dengan skala Likert. Pengujian hipotesis dalam penelitian ini menggunakan SEM-PLS melalui software SmartPLS Versi 2.0 M3. Hasil penelitian ini menunjukkan bahwa Kompetensi manajerial berpengaruh signifikan tetapi kepemimpinan demokratik tidak berpengaruh terhadap kinerja guru. Kepemimpinan demokratik berpengaruh signifikan tetapi kompetensi manajerial tidak berpengaruh signifikan terhadap motivasi kerja. Untuk mediasi motivasi kerja, menunjukkan hasil kompetensi manajerail dan kepemimpinan demokratik tidak berpengaruh signifikan terhadap kinerja guru MTs di Kecamatan Bukit Batu. Sebagai kesimpulan, kompetensi manajerial memiliki pengaruh terhadap kinerja guru sedangkan kepemimpinan demokratik memiliki pengaruh terhadap motivasi kerja.
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