Nibung (Oncosperma tigillarium) is widely used by coastal communities in Bengkalis Regency. Utilization without conservation efforts to reduce the amount in nature. Taxonomic studies based on morphological characteristics in nibung are difficult because nibung is a plant that takes a long time to grow. So that molecular data support is needed to facilitate taxonomic study. This study aimed to a…
White dragon fruit has high potential in horticulture and economic part. The supply of white dragon fruit seeds is quite limited on a large scale. One way to overcome this problem is with using in vitro techniques. It can produce white dragon fruit seeds in a fast, good quality and uniform plantlets. The purpose of this study was to determine the effect of adding a combination of NAA and IBA at…
Bas island is a small island in Indragiri Hilir regency Riau province that has biodiversity of bamboo’s. Bamboo is plant that has high adaptability, but there was no information about the species of bamboo in Bas Island. The purpose of this research was to find out the diversity of bamboo by identify based on the and examined the species, it uses as well as construcked identification key, bas…
This study aims to determine the right buffer for use in DNA genomic isolation of the Sphagnum sp. and Stenochlaena palustris ferns and produce handout for class XII Senior high school. This research was conducted at the Genetic Laboratory of the Department of Biology, Faculty of Mathematics and Natural Sciences, University of Riau in March-June 2019. The parameters of this study were the prese…
This study aims to determine the structure of weed communities on oil palm plantations in the village of Kepuhi Tengah in Rokan Hulu Regency and the design of learning resources in the form of pocket books. The study was conducted on oil palm plantations in the village of Kepuhi Tengah in Rokan Hulu Regency and in the Biology Education Laboratory of the Teaching and Education Faculty of the Uni…
This study aims to determine the structure community of soil surface insect in palm oil plantation in the village of Kepenuhan Tengah Of Rokan Hulu Regency and to produce a design learning resources in the form of pocket books. The study was conducted at the oil palm plantation in the village of Kepenuhan Tengah Of Rokan Hulu Regency and at the Biology Education Laboratory of the Teaching and E…
Johar (Senna siamea (Lam.) H.S. Irwin & Barneby) is one of species in Leguminosae family. Pharmacognosic studies are a step in determining the identity and quality value of medicinal plants. A study in pharmacognosy is the observation of microscopic characters. The purpose of this study was to analyze the anatomical structure and histochemistry of the leaves and branches of the Johar plant as…
Rubber (Hevea brasiliensis) is one of the plantation has an important role in the economy and one of Indonesia’s leading export commodities. Rubber production often decreases due to diseases, one of them is white root disease caused by Rigidoporus microporus. Common control is using chemical fungicides that can have an effect on environment and human health in the long term. Alternative …
Disease on human skin is the most common infectious disease that occurs in people of all ages which can be caused by infection of Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa. Malay Lingga community use obat pahit potion made in Traditional Medicine Practioner (TMP) as an alternative in medicinal treatment of various diseases on human. The purpose of this re…
Drought stress can limit agricultural production. The expansion of agricultural area especially horticultural cultivation requires peatland as agricultural area, but peat has a high porosity of land that will impact on drought in dry season. Eggplant is one of the favorable horticultural crops to be cultivated, but the eggplant is sensitive to drought during its growth and developmental sta…
Bukit Batu Village is a village that has the largest mangrove forest in Bengkalis, Riau Province. Unfortunatelly, most of mangrove ecosystems in the region are treathened, especially along the coastline. The purpose of this study were to determine the regeneration of mangrove seedling naturally after the deforestation and to determine the characteristics of regeneration in Bukit Batu Villag…
Mungbean (Vigna radiata L.) is an important legume after soybean and peanut. This study aime to analyze the genetic diversity of 10 mungbean genotypes from Riau Province using g-SSR (Genomic-Simple Sequence Repeat) marker. The DNA total was extracted from fresh leaves then amplified using 8 primer pairs of g-SSR. The PCR products were migrated on 2,5% agarose gel in 1X TBE buffer. The DNA …
Indonesia has large peat land areas. However, those areas nowadays are getting decreased due to increasing of peat land conversion into Industrial Plantation Forest (HTI) which is usually followed by drainage treatment. One of Indonesia's drained peatlands for HTI acacia (Accacia crassicarpa) is located in Siak Regency, Riau Province. Drainage causes a decrease in peat soil quality and able…
Cultivated plants and ornamental plants are often attacked by pathogenic fungi resulting in decline of population and crop production. Biocontrol with antagonistic fungi is one of the most effective and environmental friendly methods in suppressing the growth of plant pathogens. This study aimed to examine the antagonistic activity of Riau local fungal isolate against some pathogenic fungi…
Durik-durik (Syzygium sp.) is one of plants belongs to the family Myrtaceae that found in Kajuik Lake, Langgam, Pelalawan District, Riau Province. This plant is well adapted to waterlogging conditions and potential as a source of tolerant genes of flooding. Gene expression analysis requires internal controls such as actin and 18S rRNA. This study aimed to isolate actin and 18S rRNA genes o…
Bacteriocin is a protein substance, with small molecular weight and has antimicrobial activity. This study aimed to characterize bacteriocin from local Lactic Acid Bacteria (LAB) on several variations of pH, temperature, and biopreservative effectivity test of bacteriocin on meat from the aspect of microbiological quality. JN6, JN3, MGS1, PSG2, SR7, and PSG8 isolates showed high bacterioci…
Durik-durik (Syzygium sp.) is one of the plants that have been adapted to wetland ecosystem in Kajuik Lake, Langgam District, Pelalawan Regency, Riau Province. The ability of this plant adaptation can’t be separated from the existence of genes related to the stagnant puddle adaptation. To know the genes involved in the stress, a gene expression analysis can be performed. As a first step, …
This research aims to know the effectiveness of lime juice (Citrus aurantifolia) as a substitute for vinegar and flavor concentrates on the quality of nata de soya and develop learning modules nata de soya by administering lime juice (Citrus aurantifolia) on the matter of biotechnology high school class XII. This study consisted of two phases: the first making of Nata de Soya using the experime…
The aim of this research was to increase critical thinking skill on the subject digestion system grade VIII junior high school. This research was conducted at the Laboratory of Biology Department of the University of Riau PMIPA FKIP and SMPN 23 Pekanbaru in March to September 2016. The research is a research development by using ADDIE model of integration to the stage of development. There are …
This study was conducted to determine the effect of nutrient concentrations on plant growth AB Mix the spinach with hydroponic techniques wick system as well as the design for the development of learning handout on SMP IPA in March-May 2016. The study was carried out by two phases: an experiment: the effect of nutrient concentrations AB Mix the spinach plant growth (Amaranthus tricolor L.) with…