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Research Journal of Life Science
Published by Universitas Brawijaya
ISSN : -     EISSN : 23559926     DOI : https://doi.org/10.21776/ub.rjls
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology
Research Journal of Life Science (RJLS) is an open access publishes papers three times a year that emphasize the agriculture, fisheries, animal science, medicine, basic science and food technology. All articles are rigorously reviewed by reviewers. Articles should be created in a language that is easily understood by non-specialist readers in the topic of the article itself, but interested in research. The main objective of RJLS is to provide a platform for the international scholars, academicians and researchers to share the contemporary thoughts and innovations in the field of life science. RJLS aims to promote studies in life science and so become the leading international journals in life science in the world.This journal intends to provide facilities to advance the development and application of interdisciplinary and transdisciplinary research methodologies in life sciences.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 4 Documents
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Search results for , issue "Vol 11, No 1 (2024)" : 4 Documents clear
Effect of Landscape Composition and Habitat Conditions on the Diversity of Predatory Insects (Spiders, Ants, and Ground Beetles) in Cabbage Fields Syahputra, Arif firman; Rizali, Akhmad; Hadi, Mochamad Syamsul
Research Journal of Life Science Vol 11, No 1 (2024)
Publisher : Direktorat Riset dan Pengabdian Masyarakat, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rjls.2024.011.01.1

Abstract

In a landscape, various types of land use compositions and different habitat conditions can affect the diversity and abundance of living organisms, particularly predatory insects. The observed landscape is a cabbage plantation area located in the highlands, featuring diverse habitat conditions, vegetation variations, and surrounding land use compositions such as agriculture, natural habitats, industrial areas, and settlements. This study aims to determine the diversity and abundance of predators, particularly spiders, ants, and ground beetles, in cabbage farming, influenced by differences in landscape composition and habitat conditions in the Malang and Pasuruan districts. Landscape analysis was conducted through direct checking (ground survey), followed by digitization using QGIS software, and data analysis was performed using the RStudio application. Plant age did not affect the diversity and abundance of predatory insects in cabbage plants. Elevation was related to the abundance of ants, as well as the diversity and abundance of ground beetles. The use of insecticides had no relationship with the diversity and abundance of predatory insects. Almost all land use compositions around the study area significantly impacted the diversity and abundance of predators. Therefore, it can be concluded that certain habitat conditions and landscape compositions are related to the diversity and abundance of predatory insects in cabbage plants.
Use Of Organic Fertilizer and IPM in Certified Organic Rice Farming in East Java Winarno, Dinariningrum Rahma; Tarno, Hagus; Mudjiono, Gatot
Research Journal of Life Science Vol 11, No 1 (2024)
Publisher : Direktorat Riset dan Pengabdian Masyarakat, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rjls.2024.011.01.2

Abstract

This study aims to analyze the effect of organic fertilizer use and Integrated Pest Management (IPM) on the success of certified organic rice farming in East Java. The research method used is descriptive quantitative with Structural Equation Modeling-Partial Least Squares (SEM-PLS) analysis. Data was collected by surveying 100 organic rice farmers in Kediri District. The results showed that the use of organic fertilizers and IPM significantly increased the productivity of organic rice. Organic fertilizers, such as compost and animal manure, can improve soil fertility and crop yields. Meanwhile, IPM helps control pests without using chemical pesticides. The SEM-PLS model confirmed that both variables positively and significantly influence the success of organic rice farming. The results also show that farmers who implement organic farming have a higher level of environmental awareness and are more concerned about consumer health. However, some challenges are still faced, such as limited market access and farmers' lack of knowledge about organic farming techniques. Therefore, more intensive efforts are needed to provide education and training to farmers, as well as to develop policies that support the development of organic farming. In conclusion, the application of organic fertilizer and IPM is the key to the success of organic rice farming in East Java. With the right support, organic farming can be a sustainable solution to increase productivity, preserve the environment, and improve farmers' welfare.
Effect of Temperature on the Germination and Spread of the Mycelia of Sporisorium scitamineum Fungus Causes Smut Disease in Sugarcane Tasya, Tasya; Muhibuddin, Anton; Sektiono, Antok Wahyu; Hidayah, Nurul
Research Journal of Life Science Vol 11, No 1 (2024)
Publisher : Direktorat Riset dan Pengabdian Masyarakat, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rjls.2024.011.01.3

Abstract

Sugarcane is presumed to be susceptible to smut disease caused by a basidiomycete fungus, Sporisorium scitamineum. One environmental condition that influences the disease's development is temperature. However, information related to smut disease, especially the influence of the environment (temperature) on the growth of S. scitamineum in sugarcane, is limited. Therefore, studying the effect of different temperature ranges on S. scitamineum growth is necessary. The research, which was arranged using a completely randomized design with 3 (replicates) consisted of two treatments, including temperatures (20, 25, 30, and 35°C) and incubation time (1, 2, 4, and 6 hours). The teliospore suspension was inoculated on a water agar medium and incubated at different times and temperatures. After each allocated time, the plates were taken from the incubator, and then germination of teliospores was observed under a compound microscope. In addition, we also conducted research on the effect of inoculation temperature (25, 30, and 35°C) on the mycelial distribution within sugarcane tissue. The bud setts were immersed in teliospore suspension for 10 minutes at different temperatures, then planted in the polybags and kept for one and two weeks. The results showed that temperature affected the germination of S. scitamineum teliospores, in which the highest germination (92,3%) occurred at 30°C. On the other hand, the lowest germination was at 20°C with 0% germination after 1 hour incubation time. The in vivo study revealed that the distribution of mycelia within sugarcane tissue was similar, either incubated in one or two weeks.
Altitude-Dependent and Host Variety in Fruit Fly Populations: A Study on Bactrocera spp. in East Java Hamdoen, Fadel Muhammad; Tarno, Hagus; Syamsulhadi, Mochammad; Gandaseca, Seca
Research Journal of Life Science Vol 11, No 1 (2024)
Publisher : Direktorat Riset dan Pengabdian Masyarakat, Universitas Brawijaya

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

Abstract

Oriental fruit fly (Bactrocera spp.) are one of the most invasive pests, known for their severe impact on causing damage to wide variety of comodities. In Indonesia, as an agricultural country, possesses vast agricultural areas, in which Bactrocera fruit flies pose a persistent threat to production, particularly in regions known for horticulture. This study aims to identify key environmental drivers influencing their distribution and abundance. A cross-sectional study was conducted across thirteen locations located in four regencies and cities within East Java, Indonesia. Fruit fly samples were collected using a purposive random sampling method, with the quantity of samples adjusted to the fruit availability at the research site. The results showed that B. albistrigata, B. carambolae, and B. dorsalis exhibit strong ecological overlap, sharing similar host plants and environmental preferences, which facilitate their coexistence. Furthermore, the research provides a foundation for predicting potential shifts in population distribution in response to climate change, enabling proactive measures to safeguard vulnerable agricultural systems.

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