ABSTRACT Arthropods are the largest group of animal that inhabit the soil taking about 65%. Therefore Arthropods paly an important role in the ecosystem. Spiders have huge diversity because they show adaptability to their environment. The purpose of this study was to determine the diversity of spiders in the residential area of Simpang Baru Pekanbaru and around the Arboretum forest of the Univ…
ABSTRACT Binahong (Anredera cordifolia (Ten.) Steenis) is one of the medicinal plant. The parts that are often used in medicine are leaves, but other organs such as stems, apical shoots, and tubers also have the potential to be utilized. The aim of this study was to analyze differences in the content of secondary metabolites and antioxidant activity in leaves, stems, apical shoots, and tubers …
ABSTRACT Mangifera closely related morphologically are quite difficult to distinguish, causing differences of opinion among experts regarding the taxonomic status of several Mangifera species. Therefore, more comprehensive and stable additional data is needed to strengthen the taxonomic status of Mangifera, namely using pollen micromorphological characters. This study aims to add a new source …
ABSTRACT Weeds are undesirable plants that grow around cultivated plants. The present study aimed to determine the diversity of weeds in smallholder oil palm plantation at years seven in Teratak Air Hitam Village, Sentajo Raya District, Kuantan Singgigi Regency. The research was conducted from December 2020 to May 2021. Method used in this study was a survey technique using purposive sampling …
ABSTRACT Macang (Mangifera foetida L) is rarely cultivated by the community and has a low economic value due to its sour fruit taste, coarser fibre and more sap than other species of mangoes. The new discovery about the potential of macang as an antiviral will help conservation efforts of macang in nature while maintaining and increasing its biodiversity value. This study aims to analyze data …
ABSTRACT Ethnobotany is a science about the interaction between humans and the use of plants traditionally. The purpose of the research is to document the utilization of Zingiberaceae plants by local people in Rupat Island, Bengkalis Regency including botanical studies, ethnomedicine and ethnoantropology. The research was conducted from November 2020 - January 2021. The data was collected …
ABSTRACT The diversity of mangoes in Indonesia is one of the important assets of germplasm sources that need to be maintained. Diversity analysis is done to determine genetic resources. Exploration of mango cultivars in the archipelago, especially Kundur Island has never been done. This research aims to explore, identify, characterize and analyze the diversity of Mango in Kundur Island bas…
ABSTRACK Aceh is one of the producing areas of salak cultivation type and wild type because it has a unique topography. Deforestation and land clearing in Aceh resulted in reduced salak habitat and salak wealth in Aceh. The lack of information about salak kinship in Aceh and taxonomic studies based on morphological character are difficult to do in salak, so a molecular approach is needed to fa…
ABSTRACT Nibung (Oncosperma tigillarium (Jack) Ridl.) is a type of palm that belongs to the family Arecaceae, subfamily Arecoideae. Nibung is widely used by coastal communities in Bengkalis Regency. The high utilization of nibung without conservation efforts and the absence of a conservation status that stipulates nibung as a protected plant makes the number in nature less, so that if left unc…
ABSTRACT Sumatra Island has the highest diversity of bamboo species in Indonesia (80 of 161 species in Indonesia.). However, there is no information or data on the inventory of bamboo diversity and its utilization in Riau, especially in Kuantan Singingi Regency of Riau Province. This research aims to know diversity by inventorying and identifying species of bamboo and knowing various forms…
ABSTRACT Bamboo is plant of the family Poaceae sub-family Bambusoideae, in Indonesian species number of bamboo found reaches 161 species or approximately 11.5% of the totally species of bamboo in the world. Kampar Regency is located in Riau Province with geographical conditions located in the middle of Sumatra Island, like this bumpy areas, lowlands, highlands or hills, and swamps, which …
ABSTRACT Giam Siak Kecil-Bukit Batu (GSK-BB) Biosphere Reserve is one of the areas in Riau Province which has the largest area of peatland. Most of the peatlands in Riau have been converted into plantations and industrial plantations (HTI). The conversion of land functions has an impact on changes in vegetation, decreases in the surface of the peat, and affects the quality of the peat soil. Th…
ABSTRACT Peatlands in the Biosphere Reserve Giam Siak Kecil- Bukit Batu (GSK-BB), Riau are mostly converted into Timber Plantation (TP) Acacia, oil palm plantation, rubber plantation and settlements. Peatland conversion will affect the population and soil microbial activity. Population and soil microbial activity are indicators that are sensitive to soil quality. This research aimed to monitor…
ABSTRACT Biosphere Reserve GSK-BB is an area of peat ecosystem that has been largely converted, causing a decrease in the quality of the peat. Generally, parameters of peat quality use biological, physical and chemical factors. This parameter has not high sensitivity. Therefore, Bacterial Key Species (BKS) was developed from 16S rRNA gene sequences as sensitive parameters in monitoring peat qu…
ABSTRACT Peatlands are the result of the decomposition of organic matter under anaerobic conditions that accumulate over hundreds of years naturally. A massive conversion of land function can lead degradation of the peatland quality. The purpose of this study was to determine candidate bacterial key species (BKS) and specific primer design to detect the 16S rRNA gene from BKS that was detected…
ABSTRACT Plastic disposal is one of the greatest problem facing the environment because plastic is difficult to degrade in nature. Biodegradation is an important approach to waste reduction that relies on biological processes to break down plastics pollutants. This study screened fifteen Riau local fungi isolates for their ability to degrade the Low-density polyethylene (LDPE) plastic. Fun…
ABSTRACT Tacca chantrieri is a species of the Tacca genus from the Dioscoreaceae family which is an annual herbaceous tropical plant. T. chantrieri has a unique inflorescence morphology like a bat. T.chantrieri rhizome contains secondary metabolites such as diarylheptanoids, pseudofurostan, withanolide, taccalonolide, saponins, and has played a role as traditional medicine in Southeast China an…
ABSTRACT Surface water quality is regulated by surrounding anthropogenic activity and natural processes, including rainfall, climate change, erosion, weathering. Surface water quality can be determined using a combination of physical-chemical and biological parameters. This study aims to determine the quality of Selais artificial lake water, using physical and biological methods with saprobic …
ABSTRACT Date palm (Phoenix dactylifera L.) are annual plants that live in tropical climates such as in the Middle East and North Africa. Expansion of traditional date palm cultivation is still available by the ability of plants to produce new seeds in large numbers, uniformly, and in a short time. The problem with dates today is the generative propagation through conventional seeds which take…
ABSTRACT The tamarillo (Solanum betaceum Cav.) is a plant from the Solanaceae family that has medicinal properties that can increase immunity. Until now, the tamarillo cultivation is still practiced traditionally so that the fruit production is not as expected. Research on the quality of tamarillo propagation in an effort to increase productivity is still lacking. One that can be applied for m…