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All Journal Agrikultura BIOVALENTIA: Biological Research Journal
Rahmat Pratama, Rahmat
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

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DRAGONFLIES INVENTORY (Odonata) IN KOTA WARINGIN VILLAGE, PUDING BESAR DISTRICT – BANGKA ISLAND Pratama, Rahmat; Rosalini, Rega Alfi
BIOVALENTIA: Biological Research Journal Vol. 2 No. 2 (2016)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.761 KB) | DOI: 10.24233/BIOV.2.2.2016.43

Abstract

Odonata is considered an environmental indicator group of freshwater habitats. Thus there is a need to have a good baseline data to use it for monitoring fluvial habitats. However, species composition of Odonata in Kota Waringin Village is poorly known.This study aims to determine the diversity of dragonfly species in the Kota Waringin Village, Puding Besar District – Bangka Island. Data were collected at Three different ecosystems in Kota Waringin Village area (River in Forest, River in oil palm plantations and yard). Location for data collection based on the availability of water resources using purposive sampling method. The species were identified using identification books (Dragonfly of Singapore and Australian Dragonfly). Based on research we revealed 13 species of dragonflies are exist in three sampling locations (Agrionoptera insignis, Brachydiplax chalybea, Heliaeschna crassa, Ictinogomphus decoratus melaenops, Nannophya pygmaea, Neurothemis fluctuans, Neurothemis ramburii, Neurothemis terminata, Orthetrum chrysis, Orthetrum Sabina, Rhodothemis rufa, Zyxomma petiolatum and Rhyothemis phyllis). Keywords       :  Odonata, Dragonflies, Inventory, Conservation, Bangka Island
THE EFFECT OF APPLICATED ASH SAWDUST ON SWAMP LAND (INDRALAYA) FOR VEGETATIVE GROWTH OF RED PEPPER (Capsicum annum L.) VAR. CEMETI Pratama, Rahmat; Adriyansah, Fikri; Safitri, Ayu; M.S, Rahman Ismail
BIOVALENTIA: Biological Research Journal Vol. 3 No. 2 (2017)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (173.856 KB) | DOI: 10.24233/BIOV.3.2.2017.81

Abstract

The research " The Effect of Applicated Ash Sawdust on Swamp Land (Indralaya) For Vegetative Growth of Red Pepper (Capsicum annum L.) var. Cemeti ’’ has done, from  September to November 2017. It was conducted at green house and Pest Diseases Plant Laboratory, Plant Protection Department, Agriculture Faculty, University of Sriwijaya. This research was aimed to know the effect of applicated ash sawdust on vegetative growth of red pepper. The Completely Randomized Design with treatments are : 10, 20, and 30 g/ kg marshland and without ash sawdust (control), with 6 replicates each treatments. The result showed that applicated ash sawdust on measure 10 g/ kg soil significantly on number of growth 53.28 cm and number of branch 9.2, but not differ on dry weight of red pepper.Keywords :  Swamp land, ash sawdust, branch, red pepper 
Inventarisasi Spesies dan Intensitas Serangan Hama Tanaman Terung (Solanum melongena L.) pada Dua Sistem Kultur Teknis di Daerah Kabupaten Agam, Sumatera Barat Arsi, Arsi; Lailaturrahmi, Lailaturrahmi; SHK, Suparman; Hamidson, Harman; Pujiastuti, Yulia; Gunawan, Bambang; Pratama, Rahmat; Umayah, Abu
Agrikultura Vol 33, No 2 (2022): Agustus, 2022
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v33i2.40249

Abstract

Terung (Solanum melongena L.) termasuk salah satu komoditas sayuran buah penting yang mempunyai banyak varietas dengan berbagai bentuk dan warna yang khas. Dalam budidaya tanaman terung, beberapa kendala yang sering dihadapi oleh petani. Kendala ini salah satunya adalah adanya serangan organisme pengganggu tanaman. Gangguan hama pada tanaman terung dapat penurunan produksi karena serangan hama mengakibatkan pertumbuhan dan perkembangan tanaman menjadi tidak optimum. Tujuan penelitian ini adalah untuk melakukan inventarisasi spesies dan menentukan intensitas serangan hama tanaman terung pada dua sistem kultur teknis di Kabupaten Agam, Sumatera Barat. Penelitian dilakukan dari bulan Mei sampai Juli 2021. Metode yang digunakan adalah survey atau observasi langsung di lapangan untuk mengamati jenis spesies, jumlah populasi dan intensitas serangan hama dengan pengambilan sampel yang dilakukan secara acak. Penelitian dilakukan di dua lahan pertanaman terung dengan umur tanaman yang berbeda. Jumlah populasi dan intensitas serangan hama dianalisis menggunakan uji t pada taraf kepercayaan 5%. Hama yang ditemukan pada tanaman terung adalah Epilachna sparsa (Coleoptera: Coccinellidae), Empoasca sp. (Hemiptera: Cicadellidae), Bemisia tabaci (Hemiptera: Aleyrodidae), Spodoptera litura (Lepidoptera: Noctuidae), Chrysodeixis chalcites (Lepidoptera: Noctuidae) dan Bradybaena sp. (Stylommatophora: Bradybaenidae). Hasil pengamatan menunjukkan bahwa kultur teknis berpengaruh secara signifikan terhadap populasi hama dan intensitas serangan hama Empoasca sp., B. tabaci, E. sparsa, S. litura, Bradybaena sp. dan C. chalcites , akan tetapi populasi hama dan insitensitas serangan pada masing-masing pengamatan ada yang tidak berpengaruh secara signifikan.
Co-Authors Abu Umayah Arsi, Arsi Ayu Safitri Bambang Gunawan Fikri Adriyansah, Fikri Harman Hamidson Laila Hanum Lailaturrahmi, Lailaturrahmi Rahman Ismail M.S, Rahman Ismail Rega Alfi Rosalini, Rega Alfi SHK, Suparman Yuanita Windusari YULIA PUJIASTUTI