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In-Vitro Antifungal Test of Methanol Extract of Butterfly Pea (Clitoria ternatea L.) Seeds Against Colletotrichum sp. the incitant of anthracnose of Red Chilli Suganda, Tarkus; Amanda, Lauren Thalita; Maharani, Yani
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.v6i2.48350

Abstract

Colletotrichum sp. the incitant of anthracnose, is very detrimental disease in chili plants. Anthracnose control relies on synthetic fungicides that can have a negative impact on the environment and human health, so more environmentally friendly control alternatives are needed. The butterfly pea plant (Clitoria ternatea L.) is often used as a traditional medicine because it contains functional compounds that are antifungal and antibacterial. This study aimed to test the antifungal effect of the methanol extract of butterfly pea seeds against Colletotrichum sp. of chili plants. The research was carried out from February to April 2023 at the Phytopathology Laboratory of the Department of Pests and Plant Diseases, Faculty of Agriculture, Universitas Padjadjaran. The research method used was an experimental method with poison food techniques in a Completely Randomized Design consisted of 5 treatments with 5 replications. The treatment concentrations of extract used consisted of 1%, 2%, 3%, control, and fungicide mancozeb 0.2% as a comparison. The results showed that the methanol extract of butterfly pea seeds provided the highest inhibition of colony growth (34%) at a concentration of 3%. Inhibition of conidia production of 28.8% was shown at a concentration of 1% but no inhibition at concentrations of 2% and 3%. Methanol extract from butterfly pea seeds could not inhibit the germination of conidia of the fungus Colletotrichum sp. but the germinated conidia become aborted and fail to develop as miselia. The effectiveness of the methanol extract of butterfly pea seeds is still lower than the mancozeb fungicide.
STRATEGI KONSERVASI PELESTARIAN DAN NILAI KEPENTINGAN BUDAYA (INDEX OF CULTURAL SIGNIFICANCE) PISANG ROID LOKAL JATIGEDE: STRATEGI KONSERVASI PELESTARIAN DAN NILAI KEPENTINGAN BUDAYA (INDEX OF CULTURAL SIGNIFICANCE) PISANG ROID LOKAL JATIGEDE Ismail, Ade; Karuniawan, Agung; Qosim, Warid Ali; Maharani, Yani; Pratiwi, Vika Faraditha; Wijaya Kusumah, Fajar Maulana
Jurnal Kajian Budaya dan Humaniora Vol 5 No 2 (2023): Jurnal Kajian Budaya dan Humaniora (JKBH), Juni 2023
Publisher : PT. RANESS MEDIA RANCAGE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61296/jkbh.v5i2.132

Abstract

Banana is one of the community's most cultivated and utilized agricultural commodities. Currently, Indonesia only has 101 registered types of local varieties of bananas, one of which is Roid bananas from the Jatigede District. The local community has not taken care of Roid bananas and let them grow wildly. The exploitation of Roid usage without any conservation and preservation efforts can affect the scarcity of banana Roid as a genetic resource. Therefore, it is necessary to identify the istribution and genetic diversity of banana Roid through in situ exploration and characterization. This study aimed to identify genetic diversity's potential and arrange the conservation strategy for banana Roid (Musa spp.) in Jatigede District. This activities was conducted in April – November 2022 in Ciranggem Village, Jemah Village, and Mekarasih Village. The data was collected by exploration, survey, and interview methods. Banana Rod has the highest ICS value of 99 compared to other types of bananas. The proposed method of conservation and preservation of local varieties is in situ conservation centered in Mekarasih Village, Jatigede District, Sumedang
Kutudaun (Hemiptera: Aphididae) pada gulma di sekitar lahan pertanian di Jawa Barat beserta kunci identifikasinya Maharani, Yani; Hidayat, Purnama; Rauf, Aunu; Maryana, Nina
Jurnal Entomologi Indonesia Vol 15 No 2 (2018): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.15.2.68

Abstract

Aphids (Hemiptera: Aphididae) are considered as one the most important pest in the world. Some species of aphids were reported as serious pests and plant virus vectors, especially on horticultural crops. Weeds in the agricultural area can serve as an alternative hosts for some aphids which are plant pests or plant virus vectors. The objective of this research was to identify aphid species of weeds in the agricultural production area in West Java and to provide the identification key. Aphids collection was done on the weeds in the agricultural fields in 9 districts of West Java. Aphids were collected from 13 species (5 families) of weeds. The identification of aphid was peformed based on the adult specimens. The research manased to come up with 12 species of aphid on weeds. Three of the 12 collected species were Epameibaphis frigidae (Oestlund), Metopolophium dirhodum (Walker), and Pseudaphis sijui (Eastop) has never been reported in West Java. Six species were known as vectors of plant viruses in agricultural crops. The most commonly found aphid species was Schizaphis graminum (Rondani) in the yard grass (Eleusine indica).
Siklus hidup dan kesintasan ulat grayak Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) dari beberapa daerah di Jawa Barat: Life cycle and survivorship rate of fall armyworm Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) from several areas in West Java Susanto, Agus; Leider, Putri Artha; Maharani, Yani; Rizkie, Lilian; Bari, Ichsan Nurul; Subakti-Putri, Syifa Nabilah
Jurnal Entomologi Indonesia Vol 21 No 2 (2024): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.21.2.167

Abstract

Spodoptera frugiperda Smith is a major pest of corn plants. Information on the life cycle and survival of this pest is important for proper and effective control. This study was conducted to determine the life cycle and survival of S. frugiperda in several areas in West Java. This study was conducted from June to August 2020. Samples were taken from several areas divided into three categories: highlands in Lembang District (1,100 m asl), middlelands in Jatinangor District (858 m asl), and the lowlands in Tarikolot District (103 m asl). Sampling used the observation method to study the effect of differences in altitude on population, life cycle, and survival. The results showed that there was no significant difference in the development time of S. frugiperda among the three different areas. The average development time of S. fugiperda was 24.55 days (highlands), 24.36 days (middlelands), and 24.07 days (lowlands). The survival percentage of S. frugiperda from highland, middle, and lowland areas in the egg phase was 95.44%, 97.34%, and 96.89%, larval phase 98.46%, 98.65%, and 98.48%, and pupal phase 87.63%, 88.08%, and 93.43%. The sex ratio of S. frugiperda from the highlands was 1:1, from the middlelands was 1:1.28, and from the lowlands was 1:0.89. Location did not affect the width parameter of the head capsule in S. frugiperda. Based on the test results, it is known that the life cycle, survival, and sex ratio of S. frugiperda from several regions do not have significant differences.
The diversity and ecological roles of insects and arachnids in arabica coffee (Coffea arabica) plantation in Palasari, Bandung Regency: Keanekaragaman dan fungsi ekologis serangga dan arachnida pada ekosistem kopi arabika (Coffea arabica) di Palasari, Kabupaten Bandung Maharani, Yani; Dewi, Ajeng Putri Kusuma; Rasiska, Siska; Hutapea, Dedi; Maxiselly, Yudithia; Sandrawati, Apong
Jurnal Entomologi Indonesia Vol 21 No 1 (2024): March
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.21.1.54

Abstract

The diversity of arthropod communities is often used as a bioindicator of environmental changes, specifically in coffee farms with various management systems. Significant impacts of the environmental changes lead to alterations in the community structure and function of arthropods. The aim of this research was to determine the diversity and ecological roles of insect and arachnids in arabica coffee plantations in Bandung Regency. Sampling was conducted on five plots measuring 100 m2 each, with a separating distance of 50 m, in coffee farms located in Legok Nyenang Village, Bandung Regency. This was performed five times per weekly intervals using sweep nets, yellow tray traps, and beating sheets. Subsequently, collected samples were identified based on morphological characters at the Pest Laboratory, Faculty of Agriculture, Padjadjaran University. A total of 269 insects species (11 orders and 98 families, total 669 individuals) and 23 species of Arachnida (one order and 13 families, total 44 individuals) were found, The most abundance of natural enemies were the parasitoid, Megacampsomeris prismatica (Hymenoptera: Scoliidae) and the predator, Tetragnatha sp. (Araneae: Tetragnathidae). Meanwhile, the ecological function of the group with the lowest number was pollinators (Hymenoptera: Apidae). Although the diversity of insects and arachnids species found in coffee farms was high (H' = 5.10), the evenness and dominance index were relatively low. These results showed the potential of coffee plantations as ecosystems for conserving predatory arthropods biodiversity. Consequently, coffee cultivation practices and pest management strategies must prioritize the protection of beneficial insects such as natural enemies and pollinators.
Diversity of Soil Surface Arthropods in Raspberry (Rubus idaeus L.) Plantations in Cisarua, West Bandung District, West Java Province Maharani, Yani; Delvino Eka Praditya Setyadharma; Luciana Djaya; Rika Meliansyah; Muhamad Kadapi
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.40-54.2026

Abstract

Raspberries are exotic fruits from the Rosaceae family that are in high demand among the public. Information on plant pest organisms and the diversity of arthropods associated with raspberry plants is needed to develop raspberry cultivation in Indonesia. This research aims to study the diversity of arthropods in raspberry plantations in Cisarua District, West Bandung Regency, West Java Province. The research was carried out using a survey method on land measuring 25 x 2.5 meters at an altitude of 1126 meters above sea level (masl). Sampling was carried out using yellow sticky traps, pitfall traps, knockdown methods, flying insect nets, and six direct observations. The observations yielded 1170 arthropods across 9 orders, 40 families, and 55 genera. The diversity index value is categorized as medium and tends to be high (H' = 2.99); the evenness index value is categorized as high (E = 0.75); and the dominance index value is low (C' = 0.09). Based on their ecological function, the arthropods obtained are grouped as decomposers, herbivores, natural enemies (predators and parasitoids), and pollinators. The largest group of decomposer arthropods comes from the Psychodidae family; the most herbivorous come from the Aleyrodidae family; the most natural enemies come from the Chloropidae and Araneidae families; and the most pollinators come from the Tipulidae family. The values obtained indicate the stability of the raspberry planting ecosystem, with no dominant individuals.
Pengaruh Pupuk Majemuk Mikro dan N, P, K terhadap Kadar Mn Tanaman dan Hasil Tomat Sofyan, Emma Trinurani; Devnita, Rina; Setiawan, Ade; Maharani, Yani; Risman, Riky
AGROSCRIPT: Journal of Applied Agricultural Sciences Vol 8 No 1 (2026): June (In Press)
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36423/agroscript.v8i1.2711

Abstract

Penurunan produktivitas tanaman pada ordo Inceptisols disebabkan oleh ketidakseimbangan hara seperti mangan, sehingga diperlukan pemupukan yang tepat dan berimbang. Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi pupuk majemuk mikro dan  N, P, K terhadap kadar Mn tanaman dan hasil tomat (Solanum lycopersicum L.) pada Inceptisols asal Jatinangor. Penelitian dilaksanakan di Lahan Percobaan Kimia Tanah dan Nutrisi Tanaman, Fakultas Pertanian Universitas Padjadjaran, menggunakan Rancangan Acak Kelompok (RAK) dengan enam perlakuan dan empat ulangan: Kontrol;  N, P, K Rekomendasi; ½ Majemuk Mikro + N, P, K Rekomendasi; 1 Majemuk Mikro +N, P, K Rekomendasi; 1 ½ Majemuk Mikro + N, P, K Rekomendasi; 1 Majemuk Mikro + ¾ N, P, K Rekomendasi. Parameter yang diamati meliputi kadar Mn tanaman, diameter buah, jumlah buah, dan bobot buah per petak. Hasil penelitian menunjukkan bahwa kombinasi pupuk majemuk mikro dan N, P, K berpengaruh nyata terhadap seluruh parameter pengamatan. Perlakuan F menghasilkan kadar Mn tertinggi serta memberikan diameter, jumlah, dan bobot buah per petak lebih tinggi dibandingkan perlakuan kontrol. Peningkatan tersebut masing-masing sebesar 157,8%, 44,7%, 132,0% dan 127,3%. Hasil ini menunjukkan bahwa pemupukan berimbang antara unsur hara makro dan mikro mampu meningkatkan efisiensi pemupukan serta produktivitas tomat secara optimal pada Inceptisols.
Karakterisasi Bakteri Endosimbion pada Saluran Pencernaan Penggerek Buah Kopi (Hypothenemus hampei Ferrari) dari Buah Kopi Arabika dan Robusta di Jawa Barat Saraswati, Indriana; Maharani, Yani; Meliansyah, Rika; Hidayat, Purnama
Agrikultura Vol 37, No 1 (2026): April, 2026
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v37i1.68766

Abstract

Penggerek buah kopi (Hypothenemus hampei) merupakan hama paling merusak pada tanaman kopi di dunia. Kemampuannya untuk beradaptasi di dalam buah kopi dan mendegradasi kafein diduga dipengaruhi oleh keberadaan bakteri endosimbion, khususnya yang menghuni saluran pencernaan. Namun, informasi dasar mengenai bakteri endosimbion usus pada berbagai jenis kopi di Indonesia masih terbatas, terutama kajian komparatif fenotipik antara populasi yang berasosiasi dengan kopi arabika dan robusta. Penelitian ini bertujuan untuk mengkarakterisasi secara fenotipik dan menentukan kelompok awal bakteri endosimbion usus H. hampei yang dikoleksi dari perkebunan kopi arabika di Garut dan Sumedang serta kopi robusta di Bogor dan Pangandaran. Isolasi bakteri dilakukan menggunakan media selektif pektin agar dan diperoleh delapan isolat. Seluruh isolat menunjukkan morfologi koloni yang serupa, yaitu berbentuk bulat, bertepi rata, berwarna putih hingga putih susu, dengan elevasi datar hingga cembung. Karakterisasi mikroskopis menunjukkan bahwa seluruh isolat merupakan bakteri Gram-negatif berbentuk batang pendek; tujuh isolat bersifat motil dan satu isolat tidak motil. Uji biokimia menunjukkan hasil positif pada uji fermentasi karbohidrat, Uji Simmons sitrat, dan uji aktivitas katalase. Karakteristik fenotipik tersebut menunjukkan bahwa isolat mengarah pada kelompok Enterobacteriaceae yang umum dilaporkan sebagai endosimbion serangga. Isolat yang berasal dari inang arabika dan robusta menunjukkan profil fenotipik dan metabolik yang konsisten, yang mengindikasikan adanya struktur komunitas bakteri usus yang relatif konservatif pada H. hampei sebagai hasil tekanan seleksi dari lingkungan internal saluran pencernaan. Penelitian ini memberikan dasar awal secara fenotipik untuk memahami peran endosimbion dalam adaptasi penggerek buah kopi serta menegaskan pentingnya kajian lanjutan, khususnya terkait interaksi dengan senyawa pertahanan tanaman kopi dan serangga inangnya.
Characterization of Eco-Friendly Straw Based on Chitosan from Pupae Exuviae of Black Soldier Fly (Hermetia illucens) Sulaeman, Rico; Putri, Raden Roro Zakiah Diva Wisnu; Damayanti, Regita; Fauzan, Fathan; Hadiyan, Muhammad Ribhan; Maharani, Yani
AgriHealth: Journal of Agri-food, Nutrition and Public Health Vol 5, No 2 (2024): October
Publisher : Research and Development Center for Food, Nutrition and Public Health (P4GKM) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agrihealth.v5i2.86274

Abstract

Utilizing materials with high natural degradation capabilities is viable for managing a sustainable environment. Chitosan derived from the exuvia of black soldier flies-BFS (Hermetia illucens) offers a potential alternative to chitosan sourced from crustaceans and food plants. It can be used to create straws and other chitosan-based products. The research aimed to analyze the characterization of chitosan from BSF exuvia as an environmentally friendly raw straw material. This study began by collecting BSF pupae exuviae, which was cleaned and dried for chitosan extraction. The test was carried out using various levels of chitosan, i.e., 0%, 0.5%, 1%, 1.5%, and 2%, with observation parameters on tensile strength and elongation, biodegradability, water absorption, and contact angle. The research was conducted with 5 repetitions per sample at each chitosan concentration level. The results showed that higher concentrations of chitosan led to increased tensile strength, ranging from 1.38 to 3.65 N mm-². The contact angle and hydrophobicity values varied between 69.87° and 103.66°, while the elongation at break values ranged from 4.5 to 285%. The 4 formulas on the biodegradability test showed no noticeable difference according to statistical analysis of variance (ANOVA test). Based on the formulation tested, a chitosan concentration of 2% (P4) is the best formulation as an ingredient in making eco-friendly straw.