ABSTRACT Spodoptera frugiperda is a pest that can cause the failure of the formation of young leaves on corn plants because it attacks the growing point of plants and causes yield loss on corn plants up to 15-73%. The control that is still often carried out to control S. frugiperda is using chemical insecticides, but this has various negative impacts. Insecticide soursop leaf powder (Annona mu…
ABSTRACT Oryctes rhinoceros L. is a major pest of Elaeis guineensis Jacq. which can reduce yield by 69% at the first harvest and cause 25% mortality in immature plants. Biological control using the fungus Metarhizium anisopliae (Metsch.) inoculated into compost can control the population of O. rhinoceros and can increase the growth of E. guineensis seedlings. This study aims to obtain the …
ABSTRACT The oil palm plant (Elaeis guineensis Jacq.) is a plant that produces food oil, industry and biofuel. Palm oil replanting is the process of replacing old and damaged plants with new plants to increase the productivity of oil palm plantations. This research aims to determine the effect of the interaction of solid compost and NPKMg fertilizer, solid compost factors, NPKMg fertilizer and…
ABSTRACT Corn (Zea mays L.) is the second important food in Indonesia after rice. One of the problems encountered in maize cultivation is the attack of the corn fall armyworm (Spodoptera frugiperda J.E., Smith). The corn fall armyworm S. frugiperda is a threat in maize cultivation, because it can cause a decrease in production of 5-20% when the larvae attack the leaves and 100% when the larvae…
ABSTRACT Sago (Metroxylon spp.) is an important crop in Indonesia, particularly in the Meranti Islands, which have vast peatlands as its ideal habitat. This study aims to identify the physiological characteristics of several sago accessions based on photosynthetic rate, stomatal density, chlorophyll content, and leaf area index. The research used a Split Plot Design with location (A38, C33, an…
ABSTRACT Sago palm (Metroxylon spp.) is a carbohydrate-producing plant that serves as a staple food in several regions of Indonesia, such as Maluku and Papua. However, increasing industrial demand has led to excessive exploitation, causing genetic erosion. Genetic diversity is crucial for ensuring the sustainability of this crop, contributing to the development of superior varieties and ge…
ABSTRACT Peanut (Arachis hypogaea L.) is a vital food crop in Indonesia, widely used for direct consumption, processed products, and animal feed. Production in lowland areas remains low due to the limited adaptability of available varieties to these environments. This study aims to evaluate genetic diversity, heritability values, and inter-character relationships among six peanut genotypes (Ta…
ABSTRACT Peanut is a vital food crop used in food preparations, the food industry, and animal feed. Peanut production in Indonesia remains low, requiring improvement through plant breeding. This study examined the relationship between growth traits, yield components, and total yield in various peanut genotypes to identify traits suitable as selection criteria for yield improvement. Conduct…
ABSTRACT Peanut (Arachis hypogaea L.) is an essential commodity as a source of protein and vegetable oil; however, its productivity remains low. This study aimed to evaluate the phenotypic variation, heritability, and inter-character relationships of peanut genotypes under different phosphorus fertilizer doses. The research was conducted using a randomized block design with two factors. The fi…
ABSTRACT Maize (Zea mays) is one of the most important carbohydrate-producing food crops in the world along with wheat and rice. Maize production in Riau decreased by 15%-75% due to Spodoptera frugiperda J.E. Smith larvae attack. Jengkol fruit rind (Pithecellobium lobatum Benth.) is one of the plants that have the potential as a vegetable insecticide. P. lobatum contains the active compound je…
ABSTRACT This research aims to determine the interaction of providing compost sludge and N, P and K fertilizer, and to obtain the best dose for the growth of oil palm plants (Elaeis guineensis Jacq.) in the main nursery on ultisol media. This research was conducted using a factorial completely randomized design (RAL) consisting of two factors. The first factor of sludge compost consists of…
ABSTRACT Sweet corn (Zea mays saccharata Sturt.) is a horticultural commodity that has high economic value due to its nutritional content and sweet taste. One of the reasons for increasing sweet corn productivity is fertile agricultural land. Riau Province, most of its agricultural land is marginal land such as Dystrudepts soil which has limitations in its chemical properties, namely high …
ABSTRACT Rice crop (Oryza sativa L.) is the main food commodity in Indonesia and a source of energy and carbohydrates for the community. However, rice production in several regions including Riau Province, has decreased due to the attack of plant disrupting organisms, especially the brown planthopper (Nilaparvata lugens Stal.) which can cause yield losses of up to 100%. Alternative control…
ABSTRACT Shallot (Allium ascalonicum L.) is a horticultural crop that is useful as a seasoning and medicine. The need for shallots is increasing as the population increases. Efforts to increase production can be done through fertilization. Rice straw compost organic fertilizer can improve soil structure and increase soil microbial activity. NPK inorganic fertilizer is also needed by shallot pl…
ABSTRACT Peanuts (Arachis hypogaea L.) are an important agricultural commodity in Indonesia, with production increasing every year. One of the main challenges in improving peanut production is the limited availability of superior varieties that are specific to particular locations. Efforts to enhance peanut varieties can be carried out by utilizing the genetic variability available through pla…
ABSTRACT Peanuts are an important food crop rich in fats and proteins. However, the low productivity of peanuts in Indonesia has led to a reliance on imports. One solution to increase productivity is the development of superior varieties through plant breeding approaches. This study aims to determine the genetic correlation of various peanut traits under different doses of phosphorus fertilize…
ABSTRACT Rice (Oryza sativa L.) is a cereal plant whose grain is utilized as a source of carbohydrates. Rice production can be increased by applying the appropriate planting system combined with balanced NPK fertilizer, solid compost, and bio-fertilizers. This study aims to assess the effectiveness of planting systems with a combination of inorganic, organic, and bio-fertilizers on the growth …
ABSTRACT Metisa plana is a bagworm that attacks oil palm plantations in Indonesia and resulted in unstable oil palm production. The usual control used by farmers is using synthetic pesticides which can cause problems. Synthetic pesticides can be reduced by using M. anisopliae local isolate as an environmentally alternative. This study aims to obtain the concentration of entomopathogenic fungus…
ABSTRACT Coptotermes curvignathus Holmgren is a major pest of oil palm. Control of C. curvignathus still uses synthetic chemical insecticides. A solution to reduce the use of chemical insecticides by using environmentally friendly materials is the local entomopathogenic fungi (CEP) Cordyceps militaris. The research was canducted at the Plant Pest Laboratory, Faculty of Agriculture, Riau Un…