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ALI NURMANSYAH
Departemen Proteksi Tanaman, Fakultas Pertanian, Institut Pertanian Bogor, Jalan Kamper, Kampus IPB Dramaga, Bogor 16680.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology

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Ketahanan enam galur padi sawah (Oryza sativa L) terhadap wereng batang coklat (Nilaparvata lugens Stål) asal Patokbeusi, Subang : Resistance of six lowland rice lines (Oryza sativa, L .) to brown planthopper (Nilaparvata Lugens, Stål.) from Patokbeusi, Subang Triwidodo, Hermanu; Nurmansyah, Ali; Sartiami, Dewi; Amanatillah, Niky Elfa; Meliyana; Lukvitasari, Luna
Jurnal Entomologi Indonesia Vol 20 No 3 (2023): November
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.20.3.240

Abstract

Release of new varieties requires qualitative as well as quantitative characters of the lines. For rice varieties, resistance to brown plant hopper (BPH) (Nilaparvata lugens, Stål) (Hemiptera: Delphacidae) is an important character that should be tested. The purpose of this study was to determine the resistance of new rice lines of rice cultivar to BPH. In this study, the tests were carried out on 6 (six) lines of candidate varieties developed by IPB University, namely TCIPB202101, TCIPB202102, TCIPB202103, TCIPB202104, TCIPB202105, and TCIPB202106. Resistance to BPH assays was conducted by screening and population development tests. Inpari 30 and Ciherang varieties were used as controls. The results showed that the TCIPB202106 line is the most resistant to BPH attack, while the TCIPB202103 line is the most susceptible to BPH attack. The average number of nymphs in the TCIPB202106 line was three times lower than those in Inpari 30 and Ciherang. The results of the population growth test were in line with the results of the screening test which indicated that the TCIPB202106 line is classified as moderately resistant to BPH.
Semiokimia dan volatil lain pada Cheilomenes sexmaculata (Fabricius) (Coleoptera: Coccinellidae) yang memangsa Aphis gossypii Glover (Hemiptera: Aphididae) pada tanaman cabai: Semiochemicals and other volatiles on Cheilomenes sexmaculata (Fabricius) (Coleoptera: Coccinellidae) that prey on Aphis gossypii Glover (Hemiptera: Aphididae) on chili plants Efendi, Siska; Dadang, Dadang; Winasa, I Wayan; Nurmansyah, Ali
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.21.2.140

Abstract

Cheilomenes sexmaculata (Fabricius) is a potential natural enemy of aphids. Various aspects of the ecology and biology of this predator have been studied; however, there is still limited information on its physiology, particularly regarding pheromones and other semivolatiles. Naturally, intraspecific and interspecific interactions of C. sexmaculata involve a variety of semiochemicals. The information on the semiochemicals of C. sexmaculata, particularly its sex pheromones, footprints, defense mechanisms, aggregation, and other semivolatile characteristics, is still limited in Indonesia. This research was aimed to identify the semiochemical produced by the female of C. sexmaculata. The volatile compounds emitted by C. sexmaculata were captured using the headspace solid-phase micro extraction (SPME) method. The identification and quantification of each volatile compound were analyzed using gas chromatography-mass spectrometry (GC-MS). A total of 47 volatile compounds was identified among the semivolatiles. The identified volatiles comprise 47 compounds, mainly from the hydrocarbon compunds. Methyl isovalerate was the compound with the highest proportion, namely 31.43%. Several compounds identified were known to be components of the C. sexmaculata pheromone, namely methyl isovalerate, limonene, undecane, dodecane, and eicosane. These compounds were reported as components of sex pheromones, aggregation, and alarm. The limonene identified in this experiment was also previously reported in several Coccinelliade as a component of aggregation pheromone.
Co-Authors . Giyanto Abdul Munif Akhmad Rizal Akhmad Rizali Amanatillah, Niky Elfa Arifah Rahayu Ariffatchur Fauzi Auliya Selamet Bonny Poernomo Soekarno Bonny Purnomo Wahyu Soekarno Bonny Purnomo Wahyu Soekarno Budi, Ferri Stya Busyairi Latiful Ashar Dadan Hindayana DADANG DADANG DAMAYANTI BUCHORI Darmayanti Buchori Dede Maryana DEWI SARTIAMI Fanani, Muhammad Zainal Gede Suastika Gede Suastika Giyanto Giyanto Hendrival Hendrival Hermanu Triwidodo I Wayan Laba I Wayan Winasa Inrianti Sari Handayani Irvan Zidni Ita Fitriana Kikin H Mutaqin Lukvitasari, Luna Magdalena Magdalena Mayasari, Astrid Meity Suradji Sinaga Meliyana Mimi Sutrawati Mubin, Nadzirum Muhamad Nurhuda Nugraha Nirma Septia Ramlan Anjas PURNAMA HIDAYAT Putri, Nhyra Kamala Raden Mohamad Herdian Bhakti RAUF, AUNU Roedhy Poerwanto Roestamy, Martin Roschon Ubaidillah Saputra, Bubun Afif Hidayat Aziz Setyono, S. Siska Efendi Siti Tri Wahyuni SRI HENDRASTUTI HIDAYAT Sugeng Santoso Supramana Suryo Wiyono Swastiko Priyambodo, Swastiko Teguh Pratama Utami, Aidha Wasik, Muhammad Alimun Widodo Widodo Widodo Widya Sari Zulaika Zulaika