Judul: Preferensi Pakan Imago Aulacophora indica (Gmelin) (Coleoptera: Chrysomelidae) terhadap Empat Jenis Tanaman Cucurbitaceae.
Abstrak: Aulacophora indica (Gmelin) is an important beetle attacking on Cucurbitaceae plants. Damage to plants is strongly influenced by the food selection and consumption patterns on leaves. This study aims to examine the feeding preferences of adult A. indica on four types of Cucurbitaceae host plants, namely cucumber (Cucumis sativus), pariah (Momordica charantia), squash (Luffa acutangula), and chayote (Sechium edule); to observe beetles grouping on four types of plants above; to evaluate the behavior of feeding, the concumption capability on preferred food, and the perching behavior during feeding; to count the time and duration of beetles copulation, the timing of oviposition and the number of eggs laid. The food treatments were given to paired adults, separate females, and males beetles in situ. The areal leaf damage was measured everyday. The preference test was conducted for 5 days, while the feeding behavior was observed until 7 weeks after treatments. Results of this experiment showed that the beetles chose a cucumber as a host plant. Area of cucumber leaf consumption by the beetles was 1608.00 mm2 and 2732.40 mm2 inside and outside the laboratory room, respectively. Beetles tended to be more colonized on the upper rather than the lower surfaces of cucumber leaf were 83.53% and 77.03%, respectively. Total consumption of paired A. indica, females and males on cucumber leaves ranged 154.44 to 309.86 mm2/day, 33.27 to 70.50 mm2/day and 27.76 to 46.16 mm2/day. The copulation time of A. indica was occurred between 06:00 am to 05:30 pm. The copulation period spent was 46.00 to 118.54 minutes/day. The females prefered laying eggs in a midday, mostly between 09.30 am to 02.25 pm. Each female laid 51 to 64 eggs/day. The beetles A. indica prefered a cucumber as a host plant and fed optimally on cucumber leaf and could successfully produced eggs during experiment.
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Judul: Host acceptance and food efficiency by Epilachna vigintioctopunctata on several host plants
Abstrak: Epilachna vigintioctopunctata (Fabricius) (Coleoptera: Coccinellidae) is commonly known as hadda beetle. This insect is a phytophagous and causes a serious pest and built a tremendous damage to solanaceaeous crops. The suitability of a certain host plant could affect on feeding activity and digestibility of food that support insect growth and development. Recently, food acceptance and suitability on several varieties of host plants by E. vigintioctopunctata has not been reported in Indonesia. The objective of this research was to investigate the host acceptance and food efficiency by E. vigintioctopunctata on several host plants. Both larvae and adults bite on six species of leaves Solanum melongena, S. tuberosum, Lycopersicon esculentum, Physalis angulata, Cucumis sativus, and Cucurbita pepo. The larvae and adult beetles mostly fed on S. melongena with the areal leaf consumed 6.75 and 1.771 cm2/insect/day, followed by L. esculentum, 4.416 and 1.35 cm2/insect/day. The average rate of consumption on L. esculentum by early 4th instar larvae was 1.5 x 105 μg/insect/day higher than S. melongena was 1.0 x 105 μg/insect/day. On the other hand, the average growth rate and efficiency of conversion of digested food were 3723.7 μg/insect/day and 43.17% higher than in S. melongena than L. esculentum were 2984.8 μg/insect/day and 19.94% respectively. This beetle has low consumption but high efficiency of utilization food on S. melongena.
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Judul: Peranan Public Relations Pada Perusahaan Media Massa Televisi Setelah Relaunch Perusahaan (Kasus Marketing Public Relations Perusahaan Media Massa Televisi Trans7)
Abstrak: Strategi yang ditempuh perusahaan untuk menaikkan citranya adalah dengan melakukan hubungan dengan publik atau kegiatan Public Relations. Peranan Public Relations tidak hanya ke dalam perusahaan atau organisasi saja tetapi juga keluar perusahaan. Kegiatan Public Relations berperan dalam menyusun strategi komunikasi yang tepat untuk menaikkan citra perusahaannya. Dalam hubungannya dengan pencitraan positif terhadap publik internal, Public Relations berperan untuk menumbuhkembangkan tanggung jawab sosial perusahaan. Dengan demikian, akan menciptakan motivasi kerja, loyalitas, dan peningkatan kinerja karyawan. Penelitian ini bertujuan untuk : 1). Mengkaji proses perubahan manajemen perusahaan dari TV7 menjadi Trans7, dan 2). Mengkaji peran PR dalam pembentukan citra perusahaan dan mengkaji strategi yang dilakukan perusahaan dalam mempromosikan program yang ditayangkan setelah perusahaan melakukan relaunch. Metode penelitian ini menggunakan pendekatan kualitatif. Penerapan metode kualitatif ini menggunakan strategi penelitian kasus. Trans7 terletak di Menara Bank Mega, Jalan Kapten P. Tendean Kav. 12- 14A Lantai 20, Jakarta Selatan. Berawal dari kerjasama strategis antara Para Group dan Kelompok Kompas Gramedia pada tanggal 4 Agustus 2006, Trans7 lahir sebagai sebuah stasiun swasta yang menyajikan tayangan yang mengutamakan kecerdasan, ketajaman, kehangatan penuh hiburan serta kepribadian bangsa yang membumi. Trans7 yang semula bernama TV7 berdiri dengan ijin dari Departemen Perdagangan dan Perindustrian Jakarta Pusat dengan Nomor 809/BH.09.0S/III/2000. Pada tanggal 22 Maret 2000 keberadaan TV7 telah diumumkan dalam Berita Negara Nomor 8687 sebagai PT. Duta Visual Nusantara Tivi Tujuh.
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