Artikel Berbahasa Inggris - Portal Jurnal

Total ditemukan 20542 artikel.


PENGARUH PENGGUNAAN MODEL PEMBELAJARAN PROJECT BASED LEARNING (PBL) TERHADAP PENGUASAAN MATERI OLEH SISWA

Oleh: Hidayati, Dwi Febri, Pramudiyanti, Pramudiyanti, Sikumbang, Darlen

The research objective was to know the influence of project besed learning model toward student’s material mastery. The design of the research was pretest-posttest group design. The sample of the research were the students of grade VIIb and VIIc of MTs Nurul Iman Sekincau that were chosen by using...

Penerbit: Universitas Lampung • Publikasi: 28 February 2014

Kelimpahan dan Keanekaragaman Spesies Laba-laba Predator Hama Padi Ratun di Sawah Pasang Surut

Oleh: Herlinda, Siti, Manalu, Hendri Candro Nauli, Aldina, Rinda Fajrin

ABSTRACTAbundance and Species Diversity of Predatory Spiders for Insect Pests Inhabiting Ratoon Paddy in Tidal Lowland.  Ratoon paddy productivity is lower than the main crop.  Increasing productivity of the ratoon paddy is to protect the paddy from pests and diseases. This study aimed to ...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Pengaruh Musim terhadap Perkembangan Atelocauda digitata, Penyebab Penyakit Karat pada Acacia auricaliformis di Yogyakarta

Oleh: Widyastuti, Siti Muslimah, Harjono, ., Susanti, Zjakiyah Ari

ABSTRACTSeasonal effect on the growth of Atelocauda digitata, the cause of rust disease on Acacia auriculiformis in Yogyakarta. The research was aimed to determine the growth of Atelocauda digitata which attacks Acacia auriculiformis in Gunung Kidul, Yogyakarta and determine the process of A. digita...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Keanekaragaman Jamur pada Rizosfer Tanaman Cabai Sistem Konvensional dan Organik dan Potensinya sebagai Agen Pengendali Hayati Colletotrichum gloeosporioides

Oleh: ., Nurbailis, ., Martinius, Azniza, Verry

ABSTRACTFungal diversity of chili rhizosphere at conventional and organic cropping system and its role as biocontrol agent of Colletotrichum gloeosporioides. The aim of this research was  to study fungal diversity in chili rhizosphere at conventional and organic system; to ditermine and identif...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Genetic Variation of Leafhopper, Nephotettix virescens Distant Active Transmitters from Endemic and Non Endemic Areas of Rice Tungro Disease Based on RAPD Marker

Oleh: ., Supriyadi, Wijayanti, Retno

ABSTRACTGenetic variation of leafhopper, Nephotettix virescens Distant active transmitters from endemic and non endemic areas of rice tungro disease based on RAPD marker. Leafhopper, Nephotettix virescens Distant (Hemiptera: Cicadellidae) plays an important role as a vector of rice tungro virus. How...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Aktivitas Antivirus Beberapa Ekstrak Tanaman terhadap Bean Common Mosaic Virus strain Black Eye Cowpea (BCMV-BIC) pada Kacang Panjang

Oleh: Damayanti, Tri Asmira, Panjaitan, Martha Theresia

ABSTRACTAntivirus actitivity of several plant extracts against Bean common mosaic virus strain Black eye cowpea (BCMV-BlC) on Yard long bean.  Bean common mosaic virus (BCMV) is an important virus on yard long bean and it is difficult to control. One of control effort way by utilizing antiviral...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Integration of Botanical Pesticide and Entomopathogenic Fungi to Control the Brown Stink Bug Riptortus linearis F. (Hemiptera: Alydidae) in Soybean

Oleh: ., Suharsono, Prayogo, Yusmani

ABSTRACTIntegration of botanical pesticide and entomopathogenic fungi to control the brown stink bug Riptortus linearis F. (Hemiptera: Alydidae) in soybean. The efficacy of botanical pesticides i.e. Annona squamosa seed powder (ASP) or  Jatropha curcas seed powder (JSP) integrated with entomopa...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Induksi Ketahanan terhadap Penyakit Hawar Daun Bakteri pada Tanaman Padi di Lapangan Menggunakan Rizobakteri Indigenos

Oleh: Khaeruni, Andi, Rahim, Abdul, ., Syair

ABSTRACTInduced resistance to bacterial leaf blight disease in rice field by indigenous rhizobacteria.  Bacterial leaf blight is the most important disease on paddy at Southeast Sulawesi. Utilization of biological agents that induce plant resistance is an alternative tool to control bacterial l...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Parameter Neraca Hayati dan Pertumbuhan Populasi Kutu Putih Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) pada Dua Varietas Ubi Kayu

Oleh: Wardani, Nila, Rauf, Aunu, Winasa, Wayan

ABSTRACTThe life history and population growth parameters of mealybug Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) on two cassava varieties. The development, reproduction, and population growth parameters of the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pse...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014

Efikasi Asap Cair dari Kayu Laban (Vitex pubescens) terhadap Rayap Coptotermes curvignathus

Oleh: Oramahi, HA, ., Purwati, Zainal, Sofian

ABSTRACTEfficacy of liquid smoke from laban wood (Vitex pubescens) against Coptotermes curvignathus. Antitermitic activities of liquid smoke produced from Vitex pubescens against C. curvignathus was evaluated in this study. This research was conducted in two steps, i.e. pyrolisis of liquid smoke and...

Penerbit: Universitas Lampung • Publikasi: 02 March 2014