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All Journal Jurnal Ilmu Lingkungan Jurnal Lahan Suboptimal JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Bioma : Jurnal Biologi Indonesia Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Seminar Nasional Lahan Suboptimal Jurnal Pengabdian Masyarakat Bumi Raflesia

Chandra Irsan

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Author-ID : 475065

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Physics Other

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Aplikasi Ekstrak Kompos Meningkatkan Hasil dan Menekan Penyakit Padi Sistem Ratun di Sawah Pasang Surut Kabupaten Banyuasin Suwandi Suwandi; Muhammad Ammar; Chandra Irsan
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 2 (2012)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Suwandi et al. 2012. Application of Extract Compost Increased Yield and Suppressed the Diseases of Ratoon Rice Crop in Tidal Swamp of Banyuasin Regency. JLSO 1(2):116-122.A field study was conducted to test the effects of the biofertilizer preparations on yield and diseases of ratoon rice crop in the reclaimed tidal swamp of Telang II, Banyuasin Regency of South Sumatra. The biofertilizer were prepared either as dormant inoculant in liquid formulation or active inoculant in compost extract. Both preparations contain chitinolytic, cellulolytic and phosphate solubilizing bacterial community. The result showed that the yield of ratoon crops of Ciherang rice variety in the suboptimal land increased by 67% (923 kg/Ha) in response to single spraying of the compost extract. The ratoon sprayed with the compost extract had a lower incidence of neck blast and panicle blight and produced less empty grains compared to non-sprayed control. The application of extract compost appears to be a feasible method for increasing production of ratoon rice in tidal swamps.

Tingkat Parasitisasi dan Deskripsi Parasitoid yang Memarasit Aphis gossypii (Glover) (Hemiptera: Aphididae) Asal Agroekosistem Dataran Rendah dan Dataran Tinggi Sumatera Selatan Riyanto Riyanto; Siti Herlinda; Abu Umayah; Chandra Irsan
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The parasitic level research and description of the parasitoid species which were parasitic towards Aphis gossypii (Glover) (Hemiptera : Aphididae ) origin the agroecosystem of the lowland and highland of South Sumatra has not been reported, although this information is needed as a foundation of biological control of A. gossypii in South Sumatra. The purpose of this study was to determine the parasitic level and provide information about the description of the parasitoid which were parasitic towards A. gossypii origin the agroecosystem of the lowland and highland of South Sumatra. Survey and exploration the parasitoid which were parasitic towards A. gossypii conducted at 11 sites in South Sumatra vegetable center.Â The identification of parasitoid species was conducted in the laboratory of Entomology Department of the Faculty of Agriculture University of Sriwijaya. The results showed the parasitic level of Aphidius sp. and Diaeretiella rapae was higher during the dry season in both lowland and highland compared to the parasitic level of Aphelinus sp. However, Aphelinus sp. could only spread in the lowland. The main characteristics of Aphidius sp. (Aphidiidae) has shaped antennae filiform and segmented 13. The front wings have a triangular pterostigma. D. rapae, (Aphidiidae) has shaped antennae filiform and segmented 14. The front wings has a triangular pterostigma. The hind wing has a perfect basal cells. Aphelinus sp. (Aphelinidae) has an shaped goblets antennae and eight segmented and the last segments three of the antennae enlarged or club. Marginal venation long wings, while the venation postmarginal and stigma reduction. In addition there are two species of hyperparasitoid which were found to be parasitic towards parasitoid A. gossypii, were Ooencyrtus sp. and Aphiidencyrtus sp. (Encyrtidae) especially in the lowland.

Uji Kisaran Inang Penyakit Downy Mildew (Pseudoperonospora cubensis) dan Antraknosa (Colletotrichum Sp.) pada Beberapa Tanaman Cucurbitaceae Erise Anggraini; A. Muslim; Azizah Zuriana; Chandra Irsan; Bambang Gunawan
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 7 No. 2 (2018): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Anggraini et al, 2018. Host-Range Analysis of Downy Mildew (Pseudoperonospora cubensis) and Anthracnose (Colletotrichum Sp.) on some Cucurbitaceae Plants. JLSO 7(2):213-224.Â Inhibiting factors of cucumber cultivation is Downy mildew disease that is caused by Pseudoperonospora cubensis and Anthracnose by Colletotrichum sp. The objective of this research was to observe pathogenicity of activity caused by Pseudoperonospora cubensis and Colletotrichum sp. isolated from cucumber towards Cucurbitaceae plants. The research was conducted at greenhouse and Phytopathology Laboratory, Department of Plant Pests and Diseases Faculty of Agriculture, University of Sriwijaya in September to December 2016. This study used Randomized Block Design (RBD), with four types of plants, 2 treatments and 4 replications. The results showed that the incubation period of the plant inoculation Downy mildew by Pseudoperonospora cubensis range between 4.5-5.0 days. Result of broadest spot area was on melon leaf 2.05 cm2 with the chlorophyll content of 0.4928 mg/g and the lowest result was on cucumber leaf 0.90 cm with the chlorophyll content of 0.7628 mg/g. While the results showed that the incubation period of the applied plant pathogen Colletotrichum sp. ranging from 3.0-4.5 days. Result of broadest spot area was on melon leaf 4.00 cm2 with the chlorophyll content of 0.3932 mg/g and the lowest result was on cucumber leaf 2.42 cm2 with the chlorophyll content of 0.7588 mg/g.

Populasi Serangga Hama dan Artropoda Predator pada Padi Rawa Lebak Sumatera Selatan yang Diaplikasikan Bioinsektisida dari Beauveria bassiana dan Insektisida Sintetik Khoirul Ikhsanudin Hanif; Siti Herlinda; Chandra Irsan; Tili Karenina; Erise Anggraini; Suwandi Suwandi; Susilawati Susilawati
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 1 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Hanif et al, 2019. Population of Pest Insects and Predatory Arthropods Inhabiting Freshwater Swamp Rice of South Sumatra Treated with Bioinsectide of Beauveria bassiana and a Synthetic Insecticide. JLSO (8)1:31-38.Entomopathogenic fungi, Beauveria bassiana, could Â kill various species of insect pests, but Â their impact on predatory arthropods needs to be studied. The aim of this study was to compare population of pest insects and predatory arthropods inhabiting rice sprayed with bioinsecticide of B. bassiana and conventional rice field using a synthetic insecticides. Bioinsecticide was made from conidia of B. bassiana and sprayed on rice canopy. The plot of conventional farmers was sprayed with synthetic insecticides made from Abamektrin. The results showed that the application of bioinsecticide of B. bassiana was not proven to reduce the pest insect population. The abundance of natural enemies of pest insects, such as Â spiders and predatory insects was also more abundant in plots sprayed with Â bioinsecticide than conventional plots that used synthetic insecticide. The synthetic insecticides have been shown to reduce the abundance of predatory insects and spiders. Bioinsecticides containing carrier of Â liquid compost were proven to increase the growth and development of rice, which was an increase in the number of rice tillers per clump in plots applied by bioinsecticide. Thus, B. bassiana of bioinsecticide with liquid compost carrier material was safer and could maintain the abundance of predatory arthropods and increased rice growth.

Co-Authors , Arsi A. Muslim Abu Umayah Ahmad Sultoni Pulungan Ajeng Tri Mughniy Amarisya Shafa Luzia Andes Triani Andika Tiara Sukma Ardia Ayu Pramesti Regita Lince Arinafril Arsi Arsi Arsi Arsi Arsi Azizah Zuriana Azzahra Nur DL B. Gunawan Bambang Gunawan Cindi Azzahra Dr. Susilawati Susilawati Edo Farhan Ella Apriyana Endi Darmawan Erise Anggraini Famita Dewi Filli Pratama Fina Sunariah Fitra Gustiar, Fitra Gilang Putra Bintang Gunawan Ade Putra Sihite Harman Hamidson Harman Hamidson Helmi Syaputra Hendra Hendra Indah Wulan Suci Irmawati Irmawati Kevin Christian Bakkit P Khairi Sardilla Khodijah Khodijah Khoirul Ikhsanudin Hanif Lailaturrahmi Lailaturrahmi Lidya Karlina M Al-Fatih Abdurrosyid M Bagas Tiyantara May Shintya Simbolon Meirizqi NS Muhammad Ammar Muhari Muhari Mutiara Raihanah Nanda Wahyu Suryana Nur Amalia N Nurhayati Nurhayati Nurhayati Oktaviani R Anwar Efendi R Putra Munandar Rahmat Pratama Rahmatul Khaira Raja Bonar Lubis Raudhatul Fatricia Rian Adrian Riana, Nanda Rilwa Wallingga Risda Muli Riyanto Riyanto Rohima Rahmah S Imam Nugraha Shakeilla Aretha Zelika SITI HERLINDA Sri Rahayu Ningsih Suheyanto Suheryanto Suparman Suparman SHK Susilawati Susilawati Suwandi Suwandi Suwandi Suwandi Suwandi Tezzia Nofetra Tika Rahmawati Tili Karenina Titi Tricahyati Vera Fadhlia Amy Wagiyanti Wagiyanti Weri Herlin Yuanita Windusari YULIA PUJIASTUTI Yusi Ananda Zahratul Fauziah Zahrotun Nisa Yusuf

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