Hemibagrus nemurus (Valenciennes, 1840) is one of the freshwater fish with high economic value and popular with the public. The bream in Siak River, Pekanbaru City, faces pressure due to environmental pollution, especially by heavy metals. This study aims to determine the growth pattern of baung fish and the quality of Siak River waters. The research was conducted in 2 locations, namely Kecamat…
The Elaeocarpaceae family is a group of green flowering plants classified under the Angiosperms, comprising 615 species across 12 genera. This family plays an important role in forest ecosystems, and its wood is utilized in the furniture industry. However, the identification and classification of species within the Elaeocarpaceae family face various challenges due to overlapping morph…
Plant diseases caused by pathogenic fungi are one type of disease that attacks cultivated plants. This study aims to test the activity of Trichoderma spp. local isolates of Riau against pathogenic fungi Ganoderma boninense and Colletotrichum spp. the Colletotrichum spp. isolation were taken from Capsiccum annuum fruit and Sansevieria trifasciata leaves with symptoms of anthracnose disease. The …
Citrus is one of the genus of the Rutaceae family originating from Asia. This study aims to determine the histochemical characteristics of the fruit skin of four species of Citrus (Rutaceae) from Pekanbaru Riau and the level of toxicity based on the LC50 value. The samples used were Citrus aurantiifolia, Citrus hystrix, Citrus limon, Citrus medica. This research was conducted from October 2024 …
The soil surface beneath mangroves is never flat, especially in the back zone. The presence of burrowing fauna such as mud lobsters (Thalassina anomala) can modify the soil surface through bioturbation processes, resulting in the formation of mounds or protrusions, as well as depressions. These modifications can influence water retention and flow. Consequently, they are also suspected to affect…
Earthworms are a group of animals that play an important role as bioindicators of soil fertility. The agricultural system applied to a land can affect the presence of earthworms. This study aims to analyze earthworm density and physico-chemical conditions of monoculture and polyculture vegetable plantations in Alampanjang Village, Kampar Regency. This research was conducted in January 2025. Pur…
Pelam mango (Mangifera laurina) is known to contain bioactive compounds such as flavonoids, phenolics, gallic acid, quercetin which are able to act as antimicrobials. The same bioactive compounds are thought to be produced by endophytic fungi. This study aims to test the antimicrobial activity of ethyl acetate of the endophytic mushroom M. laurina against Propionibacterium acnes, Staphylococcus…
Sagu merupakan salah satu komoditas unggulan yang menjadi mata pencaharian utama bagi masyarakat pesisir di Kabupaten Kepulauan Meranti, khususnya di Desa Maini. Kabupaten ini dikenal sebagai daerah penghasil sagu terbesar di Indonesia dan telah ditetapkan sebagai Sentra Sagu Nasional. Dengan luas perkebunan sagu mencapai 39.951 hektar dan produksi tahunan sekitar 39.851 ton, sagu memiliki pote…
Efforts to strengthen students' character have become a key aspect of Efforts to strengthen students' character have become a key aspect of Efforts to strengthen students' character have become a key aspect of Efforts to strengthen students' character have become a key aspect of Efforts to strengthen students' character have become a key aspect of Efforts to strengthen students' character have …
Keterampilan komunikasi interpersonal merupakan kemampuan individu untuk menjalin hubungan sosial secara efektif, yang mencakup aspek keterbukaan, empati, saling mendukung, sikap positif, dan kesetaraan. Siswa yang terisolir adalah mereka yang mengalami kesulitan dalam menjalin hubungan sosial, cenderung menyendiri, dan kurang diterima oleh lingkungan sekitarnya. Kondisi ini dapat berdampa…
Perilaku phubbing adalah tindakan menyakiti orang lain dalam interaksi sosial karena lebih asik dan fokus pada smartphone sehingga mengabaikan keberadaan dan komunikasi dengan orang yang ada disekitarnya. Kebiasaan ini dapat mengganggu kelancaran proses komunikasi tatap muka dan menjadi salah satu faktor penghambat dalam interaksi sosial seseorang. Maka dari itu, perlu adanya upaya untuk m…
Penelitian ini berjudul “Pengaruh Layanan Konseling Kelompok dengan Teknik Assertive training Terhadap Sikap Asertif Siswa Introvert di SMA Dharma Loka Pekanbaru”. Penelitian ini bertujuan untuk mengetahui gambaran Sikap Asertif siswa introvert sebelum dan sesudah diberikan layanan konseling kelompok dengan teknik Assertive training, mengetahui perbedaan tingkat sikap asertif sebelum d…
This research seeks to examine the connection between students’ personality types, as identified through the MBTI (Myers-Briggs Type Indicator) and their economic learning outcomes of twelfth-grade social science students at SMAN 15 Pekanbaru. Personality types can influence students' learning styles and understanding of the material, making it essential to understand these personality ty…
This study aims to determine the knowledge of sexual violence among children aged 5-6 years before and after being given the "Kenali dan Lindungi Diri" (Recognize and Protect Yourself) animated video at TK-PG LAB FKIP UNRI. This research is a quantitative experimental study with a pre-experimental design using a one group pretest-posttest model. The population in this study consisted of 64…
The complexity in determining the priority scale for handling physical road reconstruction work at the Padang Lawas Regency Public Works Agency, Fiscal Year 2024 is a challenge so that it can be completed systematically using a measurable scientific methodology. The activities stated in the Padang Lawas Regency Public Works Agency work plan in the Highways Sector are 35 physical work packages. …
This research was conducted in September 2024 in the coastal waters of Pengudang Village. This research aimed to identify the species composition and analyze the abundance of periphyton attached to seagrasses at three different observation stations in the coastal waters of Pengudang, Bintan, Riau Islands. Periphyton, a complex community of microorganisms, plays a vital role in food webs and …
Mature seeds of lamtoro (Leucaena leucocephala (Lam.) de Wit) contain high levels of protein and carbohydrates, various secondary metabolites, and exhibit strong antioxidant activity. These seeds have the potential to be developed as functional foods in the form of sprouts and microgreens. The aim of this study was to assess the feasibility of lamtoro sprouts and microgreens as functional foods…
Mangrove ecosystems have an important ecological role in maintaining the balance of the coastal environment and becoming a habitat for various microorganisms that support biogeochemical processes. This study aims to detect and analyze the diversity of microorganisms, especially bacteria, from mangrove sediments in Bengkalis Regency, Riau, using a molecular approach through Next-Generation Seque…
Agroforestry systems play an important role in climate change mitigation through carbon sequestration and biodiversity conservation. This study aims to analyze vegetation structure and carbon stocks in traditional agroforestry lands in the villages of Pagaruyung, Air Terbit, and Sungai Putih, Tapung Subdistrict, Kampar District, Riau Province. The research was conducted from January to March 20…
Tacca chantrieri André is an exotic ornamental plant with potential medicinal properties, however it has limitations in generative propagation due to its low germination rate and slow growth, making in vitro propagation necessary. Tissue culture is considered an effective method for shoot multiplication of T. chantrieri. This study aims to determine the effect of BAP application and the optima…