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All Journal Journal of Microbiology, Biotechnology and Conservation
Muhammad Hari Aditia Pratama
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science Immunology & microbiology

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Karakterisasi Hama Baru Spodoptera Frugiperda Pada Tanaman Jagung (Zea mays L.) Di Lombok Barat Erwin Juwanda; Bambang Supeno; Hery Haryanto; Muhammad Hari Aditia Pratama
Journal of Microbiology, Biotechnology and Conservation Vol. 1 No. 1 (2025): Journal of Microbiology, Biotechnology and Conservation (jMBC)
Publisher : Master’s Program in Biology, Faculty of Mathematics and Natural Sciences, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jmbc.v1i1.6062

Abstract

Maize (Zea mays L.) is the main food crop in Indonesia after rice, but is vulnerable to attack by plant pests (OPT), including Spodoptera frugiperda, an invasive insect that attacks corn plants. This research aims to observe the population, level of attack and characteristics of the pest of S. frugiperda in West Lombok Regency. Based on observations, the eggs of this pest are brownish white, round in shape, and have an average size of 0.33 mm × 0.47 mm. The male pupa is reddish brown with dimensions of 14.25 mm × 4.32 mm, while the female pupa is larger, namely 17.53 mm × 5.13 mm. Larvae are found in various instars (2-6) with sizes from 1.53 mm to 35.16 mm, and colors varying from light green to dark brown. Male imagos are smaller than females, with a length of 12.45 mm and a wingspan of 27.73 mm, while female imagos have a size of 14.38 mm and a wingspan of 31.47 mm. The highest population was found at location 3 with 123 larvae, while the lowest population was at location 13 with 1 larva. The highest attack rate occurred at location 7 (50%) and the lowest at location 11 (5%). The observation method includes assessing the level of damage based on the attack intensity score (0–4). This research proposes further studies to understand the distribution and control mechanisms of S. frugiperda in order to minimize its impact on corn cultivation, especially in Nusa Tenggara Barat, Indonesia.
Penampilan Karakter Agronomi Beberapa Genotipe Mutan Padi (Oryza Sativa L.) Baas Selem Generasi Kedua (M2) Hasil Induksi Mutasi Faihrorrozy; Ni Wayan Sri Suliartini; I Ketut Ngawit; Muhammad Hari Aditia Pratama
Journal of Microbiology, Biotechnology and Conservation Vol. 1 No. 1 (2025): Journal of Microbiology, Biotechnology and Conservation (jMBC)
Publisher : Master’s Program in Biology, Faculty of Mathematics and Natural Sciences, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jmbc.v1i1.6080

Abstract

This study aims to determine the differences in the appearance of agronomic characters of several genotypes of rice mutants (Oryza Sativa L.) The second generation Baas Selem (M2) is the result of mutation induction. This research was conducted in June 2021 - October 2021 in Nyiur Lembang Village, Narmada District, West Lombok Regency. The methods used were group random design (RAK) and Augmented Design with the treatment used, namely 24 genotypes of second generation Baas Selem rice seeds (M2) with control plants. The control plant repeated 3 times, while the mutant plant was 1 time, in its application using an augmented design. The data obtained were analyzed using ANOVA and BNT at the level of 5%. The results showed that Baas Selem rice mutants differed markedly in all observed agronomic characters, from plant height, flag leaf area, total number of tillers, number of productive tillers, number of grain contained, number of empty grains, weight of grain contained, weight of empty grain, weight of grain 100 seeds, flowering age of harvest age and panicle length.
Potensi Anti Xanthomonas dari Bakteri Rizosfer Tanaman Kankung Pagar (Ipomoea carnea) Nurmaliana Asmayani; Tri Wahyu Setyaningrum; A.A. Ngurah Nara Kusuma; Nur Indah Julisaniah; Muhammad Hari Aditia Pratama; Wanda Qoriasmadillah; Faturrahman
Journal of Microbiology, Biotechnology and Conservation Vol. 1 No. 1 (2025): Journal of Microbiology, Biotechnology and Conservation (jMBC)
Publisher : Master’s Program in Biology, Faculty of Mathematics and Natural Sciences, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jmbc.v1i1.6159

Abstract

The plant pathogenic bacterium Xanthomonas campestris is a Gram-negative, rod-shaped bacterium that causes damage to plant leaves. This particular disease can result in significant economic losses and a reduction in the quality of agricultural products. An alternative method of dealing with this bacteria is to utilise the rhizosphere of kale (Ipomoea carnea) as a biological control. The objective of this study was to ascertain the antibacterial potential of the rhizosphere bacteria of kale (Ipomoea carnea) against the Xanthomonas campestris bacteria and to identify isolates with enhanced antibacterial efficacy against Xanthomonas campestris using the well diffusion method. A total of 13 bacterial isolates were obtained from the rhizosphere of kale, exhibiting distinctive round colonies, flat edges, and a white or cream colouration. A total of 12 gram-negative isolates and one gram-positive isolate were identified. The highest inhibitory activity against X. campestris was demonstrated by isolates R1, R3, and R11, with an average inhibitory zone diameter of 20.01 mm, 20.79 mm, and 20.57 mm, respectively. These values fell into the very strong inhibition category.
Co-Authors A.A. Ngurah Nara Kusuma Bambang Supeno Erwin Juwanda Faihrorrozy Faturrahman Hery Haryanto I Ketut Ngawit Ni Wayan Sri Suliartini Nur Indah Julisaniah Nurmaliana Asmayani Tri Wahyu Setyaningrum Wanda Qoriasmadillah