ABSTRACT Oil palm (Elaeis guineensis Jacq.) is a strategic agricultural commodity and a major source of vegetable oil with high productivity, making the availability of high-quality planting material a critical factor for sustainable plantation development. In monocotyledonous species such as oil palm, effective vegetative propagation can only be achieved through tissue culture techniques,…
Oil palm (Elaeis guineensis Jacq.) is an important commodity in Indonesia due to its high economic value as a source of vegetable oil and its contribution to national foreign exchange. The continuous expansion of plantation areas increases the demand for planting materials; however, generative propagation requires a long germination period due to seed dormancy. Tissue culture offers an alternat…
ABSTRACT Mung bean (Vigna radiata L.) is one of Indonesia’s important food legumes with great potential for genetic improvement through plant breeding. This study aimed to determine the genetic correlation among yield components and the indirect selection response in mung bean populations to identify key traits for yield improvement. The research was conducted at the Experimental Farm of the…
ABSTRACT Mung bean (Vigna radiata L.) is one of the important food legumes with considerable market potential, but its production in Riau Province remains relatively low, so demand is still supplied from other regions. This study aimed to determine the variability, heritability, selection response, and phenotypic correlations among various seed development traits and yield components in mung b…
ABSTRACT The research on rhizosphere fungi as biological agents has been widely reported. This research aims to observe and obtain the consortia of Mucor spp. and Trichoderma harzianum from mangosteen rhizosphere fungi with a high antagonistic potency to inhibit the growth and to control Phytophthora palmivora, the cause of stem base rot disease on Siamese citrus plants in-vitro. This research…
ABSTRACT Sweet corn (Zea mays saccharata Sturt.) is one of the strategic cereal crops with high economic value and increasing market demand. However, in Riau Province, its productivity has declined annually. Fertilization both organic and inorganic is an important effort to improve sweet corn productivity. This study aimed to determine the interaction between liquid organic fertilizer (LOF) ma…
ABSTRACT Eggplant is an important horticultural crop with high nutritional and economic value. In Riau Province, cultivation is increasingly directed toward marginal lands such as Inceptisols, which are characterized by low fertility, acidic pH, limited nutrient availability, and low organic matter. Improving eggplant productivity on such soils requires integrated fertilization strategies comb…
ABSTRACT ABSTRACTABSTRACT ABSTRACT Maize (Zea mays L.) is one of the main agricultural commodities contributing to national food security and has strategic value because it can be cultivated in various regions. However, maize production in Riau Province has decreased due to infestations by the corn ear borer (Helicoverpa armigera Hubner), which may cause yield losses of up to 40%. Farmers gene…
ABSTRACT Oil palm (Elaeis guineensis Jacq.) is an important plantation crop in Indonesia due to its high economic value as a source of palm oil and palm kernel oil used in various food and non-food industries. Productivity is often disrupted by bunch rot disease caused by the fungus Marasmius palmivorus Sharples, which can lead to yield losses of up to 25%. Chemical pesticides are commonly app…
ABSTRACT Acacia (Acacia crassicarpa) is a priority species in Indonesia’s industrial forest plantations (HTI), widely used for pulpwood production and land rehabilitation. The seeds of this species exhibit physical dormancy due to an impermeable seed coat, which inhibits germination even under optimal conditions. This study aimed to determine the most effective dormancy-breaking treatment ac…
ABSTRACT The low production of okra in Riau is caused by low soil fertility, especially inceptisol soil. This study aims to determine the effect of the interaction of palm oil mill solids and NPK fertilizer, a single factor of palm oil mill solids and NPK fertilizer, and to obtain the best combination of palm oil mill solids and NPK fertilizer. This study was conducted experimentally using…
ABSTRACT This study aims to determine the relationships among several quantitative characters and the direct and indirect effects on the yield of maize (Zea mays L.). The research was conducted at the Experimental Field of the Faculty of Agriculture, University of Riau, from June to September 2024, using a Randomized Block Design (RBD) with 11 genotypes and three replications, resulting in 33 …
ABSTRACT Okra (Abelmoschus esculentus L.) is a type of vegetable that is high in nutrients and beneficial to health. Okra fruit is becoming increasingly popular. This study aims to determine the interaction and main effects of solid compost and coal fly ash. The research was conducted at the Soil Science Laboratory and Experimental Garden of the Faculty of Agriculture, University of Riau, from…
ABSTRACT Mung beans (vigna radiate L.) is one of a group of legume plants that have a high protein content. This study aims to determine the effect of interaction and the main effect of solid compost and coal fly ash. The research was carried out at the Soil Science Laboratory and experimental garden of the Faculty of Agriculture, University of Riau from April 2024 to February 2025. The study …
ABSTRACT Rice is the main staple food in Indonesia with a demand that continues to increase every year, but rice production in Indonesia still does not meet the consumption of the Indonesian people. Therefore, efforts are needed to increase rice production through extensification by utilizing sub-optimal land and intensification by using soil conditioners and superior varieties. Podzolic soil …
ABSTRACT ABSTRACTABSTRACT ABSTRACT Kenaf (Hibiscus cannabinus L.) is an important bast fiber crop widely used as raw material in various industries such as paper, geotextiles, fiberboard, and biocomposites. Fiber quality is strongly influenced by genetic factors and harvest age, which affect agronomic performance as well as the chemical composition of the fiber. This study aimed to analyze the…
ABSTRACT The objective of this study was to examine the response of hormonal priming (gibberellin) to four varieties of kenaf plants that can improve physiological parameters. This study is a factorial experiment designed using a completely randomized design (CRD) consisting of two factors, namely variety and kenaf immersion in solution. Factor I: varieties consisted of 4 levels, namely V1 = K…
ABSTRACT Bird’s eye chili (Capsicum frutescens L.) is an important horticultural commodity in Indonesia; however, its production in Riau Province decreased from 7.4 tons in 2022 to 6.6 tons in 2023 due to unfavorable soil conditions, particularly high soil acidity. Efforts to improve soil conditions were carried out using oil palm empty fruit bunch (EFB) ash as an ameliorant, along with NPK …
ABSTRACT The use of synthetic chemical insecticides, which is commonly practiced, is considered to have negative impacts on the environment and human health. Therefore, it is necessary to develop more environmentally friendly control alternatives, one of which is through the utilization of botanical pesticides. Areca nut (Areca catechu L.) seeds are known to contain active compounds such a…
ABSTRACT Shallots (Allium ascalonicum L.) are an important horticultural commodity with high economic and health value. In Riau, the increasing demand for shallots has not been matched by local production, mainly due to the dominance of peatlands with low fertility. The use of organic amendments such as oil palm frond compost and empty fruit bunch biochar can improve soil fertility and crop pr…