Plankton are creatures (plants and animals) whose lives float or float in water that is washed away by currents. This study aims to determine the diversity of plankton in the Kampar river, Kuala Terusan Village. This research was conducted in August-September 2023. Plankton sampling uses the filtering method with plankton net. Sampling was carried out at 3 observation stations with 3 sampli…
This research aims to develop an e-module based on problem-solving in the environmental change material for senior high school (SMA) grade X. The e-module was developed using the Research & Development (R&D) method with the ADDIE model. The analysis, design, and development stages were carried out from May 2023 to January 2024 in the PMIPA Laboratory of the Faculty of Teacher Training and Educa…
This research aims to determine the level and relationship of learning loss and SRL of SMAN 4 Pekanbaru students on virus material. The type of research is descriptive quantitative using survey method. The population in this study were all students of class XI SMAN 4 Pekanbaru who chose biology subject. The research sample obtained was 59 students. The research parameters measured in this study…
Chinese petai (Leucaena leucocephala) represents a crop enthused by society because of its benefits. Part of the Chinese locus bean that is most exploited is its seed. This study aims to determine the content of secondary metabolites and antioxidant activity in the seeds of chinese petai seed (L. leucocephala) at different fruit ages. Phytochemical tests were carried out qualitatively. An antio…
Tempeh is a food product made from soybeans or other legumes fermented by Rhizopus sp. with a high protein content. Safety and hygiene in the process of making tempeh are very important because they can affect the quality of the tempeh. This study aims to obtain data on the number of coliform contaminations and detect the contamination of Salmonella sp. and Shigella sp. bacteria in tempeh packa…
Liquid organic fertilizer (LOF) is an environmental friendly fertilizer alternative that can be given to plants by watering or spraying. Organic materials such as banana stem waste, coconut water, and rice water can be utilized as basic ingredients for making LOF because it has nutrients that can support plant growth. This study is conducted to determine the effective concentration and LOF appl…
The coconut plant (Cocos nucifera L.) is often called the "Plant of Life" which has social, cultural and economic roles and is also considered a multi-purpose plant. Bantan District, Bengkalis Regency is the largest coconut producer in Riau. Coconut vegetation in Bantan District is found on the coast and on land. The aim of this research is to characterize the diversity of coconut varieties bas…
The propagation of pisang kepok using seedlings derived from its parents is an obstacle for farmers to produce large scale and quality seedlings. In vitro culture is a solution for banana seedling propagation. The growth rate of plants can be supported by the provision of cytokinin type growth regulators (ZPT) such as 6-Benzyl Amino Purin (BAP) and Thidiazuron (TDZ). This study aims to determin…
Riau Province, especially Pekanbaru City, information about the existence of gecko species is still limited. Until now, only Gekko monarchus has been reported to be found in West Sidomulyo Village, Tuah Madani District, Pekanbaru City. This study aims to inventory gecko species and gecko discovery locations in Tuah Madani District, Pekanbaru, Riau; and determining the public's perception of gec…
The national meat self-sufficiency program proposed by the government aims to boost sheep productivity, but it may have negative environmental implications due to increased levels of metabolic production, fermentability, and digestibility, leading to higher greenhouse gas emissions from the livestock sector. Additionally, the prevalence of macro and micro nutritional deficiencies in livestock c…
One of the plants that has the potential to be used as a herbal medicine is the ceremai plant (Phyllanthus acidus (L.) Skeels). Ceremai plant is used by some Indonesian people as a traditional medicine to treat various diseases. This study aims to identify the anatomical structure and analyze the location of the distribution of secondary metabolites in ceremai leaves. The sample used was the th…
Merampuyan (Rhodamnia cinerea Jack) is a species of the Myrtaceae family that has a tree habit and with an average height of 5-6 meters and has simple leaves. Merampuyan leaves have medicinal properties. This research aims to characterize the anatomical structure of merampuyan leaves and identify and determine the location of secondary metabolite compounds contained in them. The samples taken …
Giant prawns can be found in rivers located on Bengkalis Island, such as the Liong River and the Sebauk River, where both rivers have mangrove forests whose existence is continuously diminishing. In addition, the two rivers have several differences in river characteristics and water conditions, such as river position, river length, salinity, and water clarity. The difference is suspected to cau…
Giant prawns are distributed throughout the tropical and subtropical zones of the world, including in Southeast Asia, such as Indonesia, including two rivers on Bengkalis Island; Kembung River and Jangkang River. Its wide distribution results in variations in some of its morphological characters because morphological characters are related to the habitat and water conditions it occupies. This s…
Miracle fruit (Synsepalum dulcificum) is a species of the Sapotaceae family that has a shrub habit and simple leaves. Miracle fruit have potential as medicinal plants. This study aims to characterize the anatomy and histochemistry of the miracle fruit leaves and analyze its potential as a medicinal plants. The methods used were the paraffin method, the paradermal method, and histochemistry. The…
Banana is a member of genus Musa, family Musaceae which has high diversity and is widely used in the worldwide, including in Kecamatan Perhentian Raja District, Kabupaten Kampar. However, studies of the genetic diversity of banana plants are still limited. Therefore, the aim of this research was to analyze the diversity of banana germplams in Perhentian Raja District Kampar Regency based on mor…
The role of butterfly pollinator can maintain ecosystem balance and maintain biodiversity.Butterfly pollinators inadvertently encourage the process of pollination when they land on flower, this process help the natural reproduction plant and enriches the level of diversity. This study aims to determine thetypes of butterflies (Subordo: Rhopalocera) and types of food plants in the protected fore…
Mangifera sumatrana is a type of mango endemic to Sumatra which has the potential to be a natural anti-diabetic agent. This study aims to evaluate the toxicity of ethanol extract of M. sumatrana leaves on the morphological and histological performance of the liver given alloxan. Ethanol extract of M. sumatrana leaves was administered orally at doses of 500, 1000, 2000, and 4000 mg/kg BW to ma…
Tampoi (Baccaurea macrocarpa (Miq.) Mull.Arg) is a member of the genus Baccaurea which is distributed mainly in the regions of Kalimantan and Sumatra. The use of tampoi can be done by exploring the potential of the B.macrocarpa plant as a medicinal plant. This study aims to determine the best type of non-polar solvent in extracting tampoi leaves and determine the content of secondary metabolite…
Indonesia as a multicultural country consists of various tribes which characterize regional culture and are recognized as national identity. Each tribe has its own culture which is passed down from generation to generation, called local wisdom. Siak is a palace city that inherits the Siak weaving craft culture. The value of local wisdom lies in the patterns of Siak Woven cloth which are designe…