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Peran Gulma Cynodon dactylon sebagai Sumber Inokulum Bipolaris pada Tanaman Padi Yulia, Endah; Nabilla, Anisa; Widiantini, Fitri; Dewi, Vira Kusuma
Agrikultura Vol 36, No 2 (2025): Agustus, 2025
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v36i2.63430

Abstract

Penyakit bercak coklat yang disebabkan oleh Bipolaris oryzae masih menjadi kendala signifikan dalam budidaya tanaman padi. Selain sumber infeksi utama, keberadaan gulma di sekitar lahan sawah dapat berkontribusi terhadap perkembangan penyakit dengan berperan sebagai inang alternatif atau reservoir patogen. Penelitian ini bertujuan untuk mengidentifikasi patogen penyebab bercak daun pada Cynodon dactylon serta mengevaluasi patogenisitasnya terhadap tanaman padi. Penelitian ini dilaksanakan pada bulan Desember 2021 hingga Maret 2022, dengan kegiatan pengambilan sampel di lahan sawah wilayah Kabupaten Sumedang, Jawa Barat, serta analisis laboratorium di Laboratorium Fitopatologi, Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Padjadjaran. Kegiatan lapangan meliputi observasi gejala dan penilaian intensitas penyakit, sedangkan kegiatan laboratorium mencakup isolasi patogen, identifikasi morfologi, dan uji patogenisitas menggunakan metode detached leaf assay. Hasil penelitian menunjukkan terdapat lima isolat dengan karakter morfologi yang sesuai dengan Bipolaris spp., yang seluruhnya menimbulkan gejala khas bercak coklat pada daun padi dalam uji patogenisitas. Temuan ini mengonfirmasi bahwa C. dactylon dapat berperan sebagai reservoir Bipolaris spp., sehingga berpotensi menjadi sumber inokulum penyakit bercak coklat pada tanaman padi.
Strategi Pengendalian Terpadu Penyakit Bulai pada Tanaman Jagung: Penyuluhan Terhadap Kelompok Tani Widara Cigasong Majalengka Suganda, Tarkus; Susanto, Agus; Yulia, Endah; Hersanti, Hersanti; Widiantini, Fitri; Natawigena, Wahyu Daradjat
Agrikultura Masyarakat Tani Vol 2, No 3 (2025): Juli
Publisher : Fakultas Pertanian, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrimasta.v2i3.65476

Abstract

Penyakit bulai yang disebabkan oleh oomiset Peronosclerospora spp. merupakan salah satu penyakit utama pada tanaman jagung. Di Majalengka, pada musim tanam 2021/2022 serangannya mencapai sekitar 20% pertanaman jagung, dengan kehilangan hasil diperkirakan mencapai 40% pada lahan yang tidak dilakukan pengendalian. Untuk mengendalikan penyakit bulai diperlukan strategi pengendalian terpadu, yang menurut laporan Pengendali Organisme Pengganggu Tanaman (POPT) setempat, para petani masih kurang mendapatkan informasi tentang strategi pengendalian penyakit bulai yang benar. Satu kegiatan penyuluhan tentang strategi pengendalian terpadu telah dilaksanakan pada tanggal 3 Juli 2025 di Balai Desa Cigasong Majalengka. Kegiatan penyuluhan dilakukan dalam dua tahap, dimulai dengan pemaparan materi dan diskusi, kemudian dilanjutkan dengan kunjungan dan demonstrasi pengendalian di lapangan.  Hasil diskusi menunjukkan bahwa pengetahuan petani Kelompok Tani Widara tentang pengendalian penyakit bulai masih belum benar. Demonstrasi cara penanganan penyakit bulai di lapangan mendapat apresiasi dari petani dan diharapkan dapat menjadi acuan dalam praktik budidaya tanaman jagung yang benar untuk mengendalikan penyakit bulai.  Booklet panduan penanganan penyakit bulai yang dibagikan kepada petani, diharapkan menjadi pedoman berkelanjutan
Early Detection of Fungicide Resistance Through Sensitivity Testing of Various Fungicide Active Ingredients and Genetic Variation of Downy Mildew-Causing Peronosclerospora maydis from Maize (Corn) Production Centers in Java, Indonesia Adhi, Satriyo Restu; Widiantini, Fitri; Yulia, Endah
AGRIVITA Journal of Agricultural Science Vol 46, No 2 (2024)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v46i2.4276

Abstract

Maize downy mildew disease in Java, caused by Peronosclerospora maydis, can cause yield losses of up to 100%. Disease management of downy mildew using synthetic fungicides has been reported to cause resistance to P. maydis. This study identified early fungicide resistance in P. maydis from several maize production centers in Java (Blitar, Kediri, Klaten, Cianjur, Garut, Jatinangor, Rancakalong, and Sukabumi) by examining fungicide sensitivity levels and detecting genetic variation. The study was conducted at the Laboratory of Biotechnology of Plant Protection, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran from November 2018 to August 2019. The results showed that isolates from Blitar and Kediri (East Java) indicated resistance to metalaxyl and fenamidone. While in general, P. maydis isolates from West Java and Central Java still have sensitivity to metalaxyl, dimethomorph, fenamidone, and oxathiapiproline. Oxathiapiproline was the most effective fungicide in damaging P. maydis conidia in all locations. Based on the results of molecular identification, there is intraspecies genetic variation based on phylogenetic analysis.
Breeding Methods for Antrachnose Resistant Chili Pepper in the Last Decade: A Review Putra, Fitriansyah; Carsono, Nono; Widiantini, Fitri; Bakti, Citra; Mitalo, Oscar W.; Kang, Seung Won
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 8 No 2 (2024): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v8i2.796

Abstract

Chili is one of the most economically valuable commodities cultivated worldwide. The high interest in chili can be attributed to capsaicin, which provides a spicy sensation when consumed. The level of interest in chili cultivation does not necessarily correlate with the yields obtained. The loss in production and yield can be attributed to the disruption of the Colletotrichum spp., which causes anthracnose disease. Breeding for anthracnose-resistant chili has been a focus of research for many scientists in various countries. Conventional and molecular methods are employed in the production of anthracnose-resistant chilies. This study will examine a range of articles and investigate the development of anthracnose-resistant chilies. The article was searched in the Scopus database. The articles were filtered based on the publication date range of 2014 to 2024, resulting in 343 articles. Furthermore, the articles were evaluated based on predetermined criteria, resulting in the identification of 22 articles. The breeding of anthracnose-resistant chili plants employs a range of conventional and molecular techniques to identify the most suitable lines. Various techniques, including crossing and different kinds of selection, were employed and validated through the development of molecular markers. Markers and genes have been identified, including RA80f6_r1, RA80f6_g1, RA80f6_g2, and RCT1, which are responsible for anthracnose resistance. This review provides an overview of the various anthracnose-resistant chili breeding methods.
Effectiveness of Fermented Coffee Cherry Liquid Extract on Preference of Coffee Berry Borer (Hypothenemus hampei Ferrari) at Coffee Plantation Rasiska, Siska; Widiantini, Fitri; Nadhira, Nadhira
CROPSAVER Vol 6, No 2 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i2.50566

Abstract

Coffee Berry Borer (Hypothenemus hampei Ferrari) are the major pest of coffee crops that can cause damage up to 40 percent. One attempt to control CBB was to use an attractant from the coffee cherry, whose potential can be enhance by fermentation. Fermented coffee will produce metabolites, such as lactic acid, ethanol, and ethyl acetate, which can increase the complexity of the aroma. The study aims to determine the effect of the fermented coffee cherry liquid extract on  CBB attractiveness, assess the intensity of the CBB attack, and other insects trapped. The method used in this research is an experiment designed in groups at the site of people’s coffee plantations, Sindangsari Village, Sukasari-Sumedang District. The treatment in this study was a fermented coffee cherry liquid extract, with a volume of aquadest (150ml), 90ml, 120ml, and 150ml, thus obtaining 9 treatments, and each repeated 3 times. Other insects trapped was identified in Pest Laboratory-Universitas Padjadjaran. The results showed that the treatment of wet fermented coffee cherry liquid extract and the volume of 120ml and 150ml could trap CBB better than the other treatments, but did not affect the intensity of CBB attack on coffee plants. Other trapped insects were dominanted by the Coleoptera order of the Staphillinidae family that acted as predators and Diptera of the Drosophillidae family wich acted like herbivores. Thus, fermented coffee fruit liquid extract can be used as a CBB attractant, but its use for the purpose of controlling CBB needs to be well designed so that it does not have a negative impact on natural enemies or other non-target insects.
Inhibition Effects of Culture Filtrates and Volatile Compounds of Antagonistic Microbes Isolated from Vermicompos and Compost Teas on the Growth of Alternaria solani Sor. in Vitro Istifadah, Noor; Septiandini, Adelia; Hartati, Sri; Widiantini, Fitri
CROPSAVER Vol 5, No 2 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i2.43278

Abstract

Alternaria solani Sor. is one of destructive pathogens in solanaceous plants including tomato. Bacteria and yeast isolated from water extract of organic matters are potential as biological control agents of plant pathogenic fungi. Mechanisms of antagonism of bacteria and yeast can be through antibiosis. This study was conducted to examine the abilities of culture filtrate and volatile compounds produced by antagonistic bacteria and yeast isolated from compost and vermicompost teas to inhibit the growth of A. solani in vitro. The experiments were arranged in randomized complete design with four replications. The culture filtrate experiment applied well diffusion method, while the volatile compound effect experiment used petri dish sandwich method. The results showed that the culture filtrates of four bacteria and three yeast isolates inhibited the growth of A. solani in vitro by 16.6-87.5%. The highest inhibition level was showed by KSB4 isolate (Bacillus subtilis), a bacterial isolate from cow manure compost tea. In the volatile compound effect experiment, the tested bacteria and yeast isolates inhibited the pathogen growth by 31.3-75.2%, with the highest inhibition was showed by KcB3, a bacterial isolate from vermicompost tea. The isolate that its culture filtrate and volatile compounds both showed high inhibition level (62.7% and 87.5%) on A. solani growth was KSB4 isolate (B. subtilis).
Co-Authors Aditya Bintan Pratama Agung Karuniawan Agung Kurniawan Agus Susanto Agus Susanto Agus Susanto Aina Anna Roosda Andang Purnama Andang Purnama Andang Purnama Asri Peni Wulandari Avissa Ayuningdiyas Betty Natalie Fitriatin Ceppy Nasahi Citra Bakti, Citra Danar Dono Danar Dono Deni Ariyono Dewi, Vira Kusuma Dinda Sekar Ayu Fiko Dwindry Formanda Dwisari Januarily Pitaloka Elga Sari Ema Komalasari Ema Komalasari, Ema Emma Trinurani Sofyan Endah Yulia Endah Yulia Endah Yulia Endah Yulia Yulia Fajri Maulana Anugrah Fakhrurroja, Hanif Feliatra Fiko, Dinda Sekar Fitri, Elysa Fuji Hartati Fuji Hartati Ghifari, Raden Faqih Hilmiy Hadi Syahir Muhadam Hersanti - Hersanti HERSANTI Hilda Sandra Utami Ida Nurhelawati Ida Nurhelawati Ifa Dwi LUTHFIANA Kang, Seung Won Kartika Sari Kirana Sonya Harviana Krissanti, Petra Sulistya Dian Lindung Tri Puspasari Luciana Djaya, Luciana Margaretta Christita, Margaretta Mia Rahmah Qadryani Mitalo, Oscar W. Muhammad Maksum Nabilla, Anisa Nadhira, Nadhira Neneng S Widayani Nia Rossiana Nono Carsono Nono Carsono Noor Istifadah Nugraha, Gema Takbir Parakkasi, Karmilla Prabowo, Yudhisa Hendri Putra, Fitriansyah Putu Ghita Novilaressa Ramdan Firmansah Rangga Irawan Prasetyo RIKA MELIANSYAH Riswandi, Hafiz Rizqullah, Ahmad Fauzan Safri Ishmayana Santa Monica Santika Sari Satriyo Restu Adhi Septiandini, Adelia Serly Noviyawati Silviya Rahma Dhiya Syafira Siska Rasiska SIska Rasiska, SIska Sri Hartati Sri Hartati Sri Hartati Sudarjat Sudarjat Sukmono Suwignyo Susanti, Rista Syahnur, Fitika Syarif Hidayat Tarkus Suganda Tati Herlina Tiara Febricyanti Putri Senjaya Tualar Simarmata Vira Kusuma Dewi Vira Kusuma Dewi Wahyu Daradjat Natawigena, Wahyu Daradjat Wawan Kurniawan Yulia, Endah Yulia Yunira, Alma Yusup Hidayat Yusup Hidayat