Article Per Year (5 Year)
p-Index From 2021 - 2026
2.863
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences Jurnal Fitopatologi Indonesia Cropsaver : Journal of Plant Protection AGRIVITA, Journal of Agricultural Science Journal of ICT Research and Applications JITRO (Jurnal Ilmiah dan Teknologi Peternakan Tropis) Jurnal Agroteknos JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Journal TABARO Agriculture Science PROSIDING SEMINAR NASIONAL AGRIBISNIS Jurnal Agrotek Tropika Agrokompleks
Asmar Hasan
Department Of Plant Protection, Faculty Of Agriculture, Halu Oleo University, Jalan HEA Mokodompit, Kendari 93231, Southeast Sulawesi, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Medicine & Pharmacology Veterinary

Published : 25 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 25 Documents
Search

 1   2   3 
ANALISIS PENGARUH SUHU DAN KELEMBAPAN TERHADAP PERKEMBANGAN PENYAKIT Tobacco mosaic virus PADA TANAMAN CABAI Taufik, Muhammad; Sarawa, Sarawa; Hasan, Asmar; Amelia, Kiki
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Climate, particularly environmental temperature, plays an important role in diseases caused by plant viruses. This study investigated the role of environmental temperature and humidity on development of Tobacco mosaic virus (TMV) on pepper (Capsicum anuum L). The research was conducted by using regression analysis. The results showed that TMV infection in plants could inhibit the growth of chili peppers. The temperature influenced disease development of TMV for up to 56,6%, whereas the humidity did not influence TMV disease development. Keywords: temperature, humadity, TMV, disease development, pepper
UJI KISARAN INANG POTYVIRUS PENYEBAB MOSAIK NILAM (Pogostemon cablin (Blanco) Benth) ASAL SULAWESI TENGGARA HASAN, ASMAR; TAUFIK, MUHAMMAD; -, GUSNAWATY HS; -, SARAWA
Jurnal Agroteknos Vol 4, No 3 (2014)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (167.528 KB)

Abstract

The objective of the research was to determine the host alternate of Potyvirus in Southeast Sulawesi using a host range technique. Observed variables were incubation period, disease incidence, and variation symptom. The research results showed that virus isolates could be mechanically transmitted to melon plant (Cucumismelo) but showing no external symptoms while on tomato (Solanum lycopersicum), long-beans (Vigna sinensis), tobacco (Nicotiana tabacum and Nicotiana benthamiana), swamp-land (Ipomoea reptana), red-amaranth (Alternantheraamoena), chili (Capsicum annum), and egg plant (Solanum melongena) so far the existence of the Potyvirus could not be detected after mechanically inoculated.
APLIKASI EKOENZIM PADA TANAMAN BUAH NAGA (Hylocereus undatus) UNTUK MENGENDALIKAN HAMA SEMUT API (Solenopsis invicta) SUSLINGSIH, SRI ELSA; RAHMAN, ABDUL; YUSWANA, AGUNG; RAHAYU M, RAHAYU; HISEIN, WAODE SITI ANIMA; PAKKI, TERRY; HASAN, ASMAR; BOTEK, MUHAMMAD
Jurnal Agroteknos Vol 12, No 2 (2022)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dragon fruit (Hylocereus undatus) is one type of cactus plant that has favorable prospects to be developed economically and in accordance with tropical climates such as Indonesia. This plant does not escape from the disturbance of pests and plant disease organisms. The fire ant (Solenopsis invicta) is one of pests that cause damage during flowering and fruiting. This study aims to determine the concentration of an effective eco-enzyme solution to control fire ant pests on dragon fruit plants. This study used a completely randomized design consisting of three treatments, namely the concentration of the eco-enzyme solution 0 mL/L water (P0), the eco-enzyme solution concentration 0.5 mL/L water (P1) and the concentration of the eco-enzyme solution 1 mL/L water (P2). The variables observed were mortality and intensity of fire ant attacks on dragon fruit plants every day after application for seven days. The results showed that eco-enzyme solution concentration of 0.5 mL/L water was effective in killing fire ant pests and reducing the intensity of fire ant damage on dragon fruit plants.
DETEKSI POTYVIRUS PADA NILAM (Pogostemon Cablin (BLANCO) BENTH) DENGAN TEKNIK ELISA DI SULAWESI TENGGARA TAUFIK, MUHAMMAD; HASAN, ASMAR; KHAERUNI, ANDI; -, GUSNAWATY HS -; MAMMA, SARAWA
Jurnal Agroteknos Vol 4, No 1 (2014)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.655 KB)

Abstract

Mosaic symptoms were observed on Patchouli (Pogostemon cablin) around North Kolaka and Kolaka, Southeast Sulawesi during surveys in early 2012. Indirect-ELISA based detection was conducted using symptomatic leaf samples. The objective of the research was to determine disease incidence of Potyvirus in several farms of Patchouli plant in Southeast Sulawesi. The results showed that Patchouli plant (Pogostemon cablin) was found to be infected with Potyvirus disease showing mosaic symptoms and malformation on the leaf samples i.e. in Amotowo and Boro-Boro Villages of subdistrict Boro-Boro, and Landabaro Village, Mowila subdistrict of South Konawe regency; Asinua Village of subdistrict Unaaha, Lambuya district of subdistrict Lambuya, and Bungguosu district, Konawe subdistrict of Konawe regency; and Anduonohu district, Poasia subdistrict of Kendari regency. This is the first report on Potyvirus infection on patchouli in Southeast Sulawesi. Keywords: Inderect-ELISA, mosaic, Potyvirus, Pogostemon cablin
Morphometric Analysis of Chili Leaves with Yellow Curly Symptom Using Digital Image Processing Approach and Data Mining Algorithm Hasan, Asmar; Taufik, Muhammad; Bande, La Ode Santiaji; Khaeruni, Andi; Mallarangeng, Rahayu; Gusnawaty HS; Asniah; Syair; Rahman, Abdul
Jurnal Fitopatologi Indonesia Vol 19 No 6 (2023): November 2023
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.19.6.231-237

Abstract

Gejala kuning keriting pada daun cabai umumnya disebabkan oleh infeksi Begomovirus. Daun tanaman terinfeksi tidak hanya mengalami perubahan warna sebagai indikator rusaknya klorofil tetapi juga mengalami perubahan morfologi bentuk. Penelitian ini bertujuan menguantifikasi gejala infeksi Begomovirus berdasarkan perubahan morfologi bentuk daun menggunakan pengolahan citra digital dan algoritma data mining yang akan memudahkan dalam pemantauan dan analisis perkembangan penyakit tanaman. Total 33 citra daun cabai rawit bergejala kuning keriting maupun tidak bergejala menjadi dataset penelitian ini. Citra daun cabai tersebut diolah dan diekstrak karakteristik bentuknya berupa circularity, aspect ratio, roundness, dan solidity menggunakan aplikasi Fiji-ImageJ. Selanjutnya dilakukan uji beda (uji-t), pengelompokan citra menggunakan algoritma Simple K-Means, dan evaluasi ketepatan hasil pengelompokan berdasarkan indeks ARI dan NMI. Hasil penelitian menunjukkan bahwa secara umum ada perbedaan bentuk yang nyata antara daun bergejala dengan daun tidak bergejala. Daun cabai rawit bergejala kuning keriting memiliki rata-rata nilai aspect ratio dan solidity yang lebih kecil dibandingkan daun cabai tidak bergejala, sebaliknya memiliki rata-rata nilai circularity dan roundness yang lebih besar dibandingkan daun cabai tidak bergejala. Evaluasi ketepatan pengelompokan sampel daun cabai rawit bergejala maupun tidak bergejala berdasarkan indeks ARI dan NMI menghasilkan nilai terbaik untuk pengelompokkan ke dalam dua kelompok.
Begomoviruses on two chili types in Southeast Sulawesi Indonesia: variation of symptom severity assessment and DNA-betasatellite identification Taufik, Muhammad; Firihu, Muhammad Zamrun; Hasan, Asmar; HS, Gusnawaty; Variani, Viska Inda; Syair, Syair; Botek, Muhammad
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 24 No. 1 (2024): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.1241-9

Abstract

The association of viral satellite DNA with Begomoviruses influences symptom expression in infected plants. Normalized Difference Vegetation Index (NDVI) is an image processing method used to assess plant health based on the plant’s ability to absorb sunlight for photosynthesis. Therefore, this study aims to assess symptom severity based on symptom variation and NDVI, as well as to detect and identify the presence of beta-satellite DNA associated with chili plants. The study was conducted in North Kolaka Regency, Southeast Sulawesi Province, Indonesia. It involved observations and image recording of symptom variations in the sampled cayenne and big red chili plants, followed by the detection of beta-satellite DNA in the samples using the polymerase chain reaction (PCR). The results confirmed the presence of non-coding satellite DNA associated with the Pepper yellow leaf curl Indonesia virus (PepYLCIV) in all severe, mild, or asymptomatic plant samples. In the phylogenetic tree, the non-coding satellite DNA isolates from Southeast Sulawesi are included in the betasatellite group and exhibit different genetic characteristics from other isolates available in the GenBank database. The cayenne chili with severe symptoms had lower NDVI values than the mild and asymptomatic categories, indicating that this type of chili with severe symptoms had a lower ability to absorb light. Further studies are needed to characterize the alpha-satellite type in the Southeast Sulawesi region for potential use in cross-protection mechanisms against plant virus infections.
The changes of chili leaf structure by Geminivirus infection Taufik, Muhammad; Firihu, Muhammad Zamrun; HS, Gusnawaty; Variani, Viska Inda; Hasan, Asmar; Botek, Muhammad; Tihurua, Eka Fatmawati; Wulansari, Tri Yuni Indah
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 24 No. 1 (2024): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.124109-119

Abstract

The Geminivirus in chili plants is a significant problem in chili cultivation. Symptoms of Geminivirus infection are quite easy to find in chili plants because the symptoms are quite typical: mosaic, yellowing, small leaves, leaf lamina malformation, and stunting. The visual changes in leaf morphology are due to the leaf tissue structure, such as the upper and lower epidermis and the mesophyll tissue, including the palisade and sponge. There is little information about changes in the structure of chili plants infected with the Geminivirus. Therefore, this study aims to add information about changes in the leaf tissue structure of chili plants infected with the Geminivirus. The structural changes observed were palisades. Long palisades were less preferred by whiteflies, so the incidence of geminivirus disease was lower. This information is a reference for assembling chili plants with better structural resistance. The method used was a cross-section of chili leaves, double staining, and observation with a light microscope. Observations on mild symptoms showed epidermal cells shrinking. Some parts of palisade leaves were composed of two layers with shortened cells and tend to be oval. The symptom is that the upper epidermal cells were shrunken, and the palisade also tends to shorten. Severe symptoms of the epidermis on the leaves were curly, shriveled, thinned, and even dying; the palisade is shortened and sometimes looks irregular/tight. Changes in the leaf tissue of chili plants infected with the Geminivirus cause changes at the ultra-structural, cell, or tissue level, depending on the type of virus attack and the attack level.
Virus Gemini Laporan pertama infeksi virus gemini pada tanaman tomat di Sulawesi Tenggara Taufik, Muhammad; HS, Gusnawaty; Hasan, Asmar; Bande, La Ode Santiaji; Hisein, Siti Anima; Hasdiana, Hasdiana; Ulfa, Nur Isnaini; Hartono, Sedyo
Agrokompleks Vol 24 No 1 (2024): Agrokompleks Edisi Januari
Publisher : Politeknik Pertanian Negeri Pangkajene Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51978/japp.v24i1.730

Abstract

Begomovirus termasuk genus dari famili Geminiviridae juga dikenal dengan nama Geminivirus. Geminivirus adalah penyebab penyakit pada beberapa komoditas sayuran termasuk tomat. Infeksi Geminivirus dapat menyebabkan kerugian berkisar 85% bahkan gagal panen, khususnya infeksi terjadi pada tanaman muda. Penularan Geminivirus di pertanaman dimediasi oleh serangga vektor kutukebul Bemisia tabaci (Hemiptera:Aleyrodidae). Tujuan penelitian adalah mengidentifikasi infeksi Geminivirus dan serangga vektor pada pertanaman tomat. Lokasi pengamatan di Desa Wolasi dan Lamomea, Kecamatan Konda, Kabupaten Konawe Selatan. Sampel daun tomat yang bergejala Geminivirus dimasukkan ke dalam kantong plastik sampel ziplock yang telah diisi CaCl2, kemudian dimasukkan di dalam kotak pendingin. Sampel tomat yang bergejala Geminivirus dideteksi dengan teknik polymerase chain reaction (PCR) di Laboratorium Virologi, Faperta Universitas Gadjah Mada. Primer yang digunakan adalah primer universal Geminivirus pAV494 dan pAC1048. Gejala Geminivirus yang ditemukan pada tanaman tomat adalah mosaik ringan atau menguning, daun mengecil, malformasi daun, daun agak menggulung ke atas, dan tulang daun mengalami penebalan. Serangga vektor kutukebul (Bemisia tabaci) dan kelompok telur hampir selalu ditemukan di pertanaman tomat. Teknik PCR berhasil mengamplifikasi DNA Geminivirus yang berukuran 500bp. Kejadian penyakit Geminivirus pada tanaman tomat di Desa Wolasi dan Lamomea adalah 40% dan 34%, secara berturut turut. Penelitian ini telah mengonfirmasi keberadaan infeksi Geminivirus yang pertama kali pada pertanaman tomat di Sulawesi Tenggara.
Potensi teknik proteksi silang terhadap jumlah stomata dan luas daun yang terinfeksi virus gemini pada tanaman cabai rawit (Capsicum frutescens L.) Huttni, Lita Oktafiana; Taufik, Muhammad; HS, Gusnawaty; Hasan, Asmar; Botek, Muhammad
Agrokompleks Vol 24 No 1 (2024): Agrokompleks Edisi Januari
Publisher : Politeknik Pertanian Negeri Pangkajene Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51978/japp.v24i1.749

Abstract

Virus gemini merupakan salah satu organisme pengganggu tanaman yang menyerang beberapa komoditas sayuran termasuk tanaman cabai. Penyakit ini disebabkan oleh Pepper yellow leaf curl virus (PepYLCV) yang masuk dalam genus Begomovirus dari famili Geminiviridae. Penularan virus sangat efisien terjadi melalui perantara serangga vektor kutukebul (Bemisia tabaci) secara persisten. Penyakit virus gemini dapat menimbulkan kerugian yang besar bahkan gagal panen jika tanaman terinfeksi pada waktu masih sangat muda. Salah satu pengendalian virus gemini yang efektif adalah dengan melakukan teknik proteksi silang. Tujuan penelitian ini adalah mengevaluasi kemampuan teknik proteksi silang untuk mengurangi keparahan penyakit virus gemini. Lokasi penelitian di Desa Wolasi, Kabupaten Konawe Selatan. Penelitian dilaksanakan dengan Rancangan Acak Kelompok (RAK), terdiri dari 10 unit perlakuan dan diulang sebanyak 3 kali. Variabel yang diamati adalah masa inkubasi virus gemini, jumlah stomata dan luas daun. Strain lemah mampu menekan laju infeksi strain kuat berdasarkan jumlah stomata dan luas daun sehingga teknik proteksi silang dapat mengurangi keparahan penyakit. Jumlah stomata pada setiap gejala bervariasi tergantung gejala yang ditimbulkan. Daun yang bergejala berat maka jumlah stomatanya lebih sedikit dibandingkan dengan daun yang bergejala sedang dan ringan. Luas daun yang diinokulasi virus dengan strain lemah dengan 1 dan 5 ekor serangga vektor yang disusul dengan virus strain kuat (proteksi silang) memiliki nilai tertinggi yaitu 875,93 cm2 dan 708,37 cm2 dibandingkan dengan luas daun yang diinokulasi virus dengan strain kuat dengan 1 dan 5 ekor serangga vektor yang disusul dengan virus strain lemah yang hanya memiliki nilai 563,50 cm2 dan 556,17 cm2.
Pengukuran keparahan gejala penyakit kuning dan kandungan nitrogen tanaman cabai terinfeksi virus gemini berbasis spektral biosensor Ayu, Sukma; Taufik, Muhammad; M, Rahayu; Hasan, Asmar; Widodo, Catur Joko; Botek, Muhammad; Huttni, Lita Oktafiana
Agrokompleks Vol 25 No 1 (2025): Agrokompleks Edisi Januari
Publisher : Politeknik Pertanian Negeri Pangkajene Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51978/japp.v25i1.832

Abstract

Virus gemini penyebab penyakit keriting daun kuning pada tanaman cabai dikenal dengan Pepper yellow leaf curl virus. Infeksi virus mengakibatkan kerusakan morfologi seperti, malformasi daun, daun kecil, leaf cupping, dan tanaman kerdil. Bukan hanya gangguan morfologi tetapi juga gangguan fisiologi seperti kandungan nitrogen dan klorofil daun tanaman cabai. Seiring dengan perkembangan teknologi digital maka penilaian keparahan gejala, pengukuran kandungan klorofil dan nitrogen dan luas daun terinfeksi virus gemini dapat dilakukan dengan teknik spektral biosensor. Metode ini merekam reflektansi cahaya merah, hijau, dan biru (Red, Green, Blue/RGB) dari objek tanaman cabai. Tujuan penelitian adalah mengukur kandungan nitrogen dan klorofil tanaman cabai terinfeksi virus gemini dan luas daun terinfeksi virus gemini. Metode yang digunakan untuk mengukur reflektansi RGB adalah spektral biosensir dengan menggunakan software ImageJ processing. Pengambilan sampel tanaman cabai terinfeksi virus gemini ditentukan secara acak berdasarkan gejala pada pertanaman cabai di pulau Muna dan Buton. Variabel yang digunakan adalah gejala dan keparahan gejala virus gemini, kandungan nitrogen dan klorofil tanaman cabai terinfeksi virus gemini, luas daun terinfeksi virus gemini. Analisis data dilakukan secara deskriptif. Hasil penelitian menggunakan metode citra digital software ImageJ menunjukkan bahwa gejala bervariasi berpengaruh pada keparahan gejala tertinggi Lakanaha sebesar 95,56%, dan rendah Suka Damai sebesar 33,33%. Kandungan nitrogen meningkat Suka Damai sebesar 49,90 dan rendah Lambiku 10,42, Kandungan klorofil tertinggi Pentiro sebesar 24,21 dan rendah Lakanaha sebesar 1,12. Luas daun tertinggi Pentiro sebesar 4,727 cm2, dan rendah Labukolo 1,243 cm2.
Co-Authors Abdul Rahman Abdul Rahman ANDI KHAERUNI Andi Khaeruni Arifin Tasrif Arini, Rian Asniah Asniah Ayu Kartini Parawansa Ayu, Sukma Botek, Muhammad Eka Fatmawati Tihurua Eko Aprianto Johan Fachry Abda El Rahman Firihu, Muhammad Zamrun GUSNAWATY HS, GUSNAWATY hasdiana, hasdiana HEMI, WA Hijria Hijria Hijria, Hijria Hisein, Siti Anima Hisein, Waode Siti Anima HUTTNI, LITA OKTAFIANA Kiki Amelia, Kiki Kikin H Mutaqin KIKIN HAMZAH MUTAQIN La Ode Santiaji Bande M, Rahayu M, Rahayu Muhammad Taufik Muhammad Taufik MUHAMMAD TAUFIK Niken Nur Kasim Nuriadi Nurmini, Nurmini QAEFA YUHAJIRIN RAHAYU M, RAHAYU Rahayu Mallarangeng Rahayu Mallarangeng, Rahayu Rahmadani SABARIA, WA ODE SARAWA -, SARAWA SARAWA MAMMA, SARAWA Sarawa, Sarawa Satrah, Vit Neru SEDYO HARTONO SRI HENDRASTUTI HIDAYAT SUSLINGSIH, SRI ELSA Syair Syair, Syair Syamsuddin Syamsuddin TAKDIR SAILI TERRY PAKKI TERRY PAKKI, TERRY Ulfa, Nur Isnaini Viska Inda Variani Widodo Widodo Widodo Widodo Widodo Widodo, Catur Joko Wulansari, Tri Yuni Indah Yuswana, Agung