Universitas Islam Kuantan Singingi: E-Journals
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Isolation and Potential Test of Phosphate-Solubilizing Bacteria in the Rhizosphere of Mangrove Plants (Rhizophora mucronata Poir) as Isolates for Biofertilizer
Get PDFMangrove forests play a significant role in environmental sustainability, particularly in their capacity to mitigate coastal erosion caused by seawater intrusion. Specifically, mangrove plants possess the ability to stabilize coastal land by retaining seawater, thereby preventing erosion along shorelines. This study aims to isolate phosphate-solubilizing bacteria and evaluate their potential from the rhizosphere of mangrove plants. The research was conducted at the Central Laboratory of the Stiper Agricultural Institute in Yogyakarta, located in Maguwoharjo, Depok District, Sleman Regency, Yogyakarta, with sampling carried out at Baros Beach in Kretek District, Bantul Regency, Yogyakarta. The study was conducted from January to February 2024. A descriptive research methodology was employed, including sterilizing tools and materials, media preparation, sampling, bacterial isolation, and identification. The analysis involved macroscopic and microscopic observations, measurement of the phosphate solubility index, and biochemical testing. The findings revealed a total of 16 bacterial isolates from five species of mangroves, specifically within the genera Streptococcus and Paracoccus. Notably, the isolate designated as SC 1 exhibited the highest phosphate solubility index, measuring 6.20 mm, indicating its potential for phosphate solubilization
Growth Performance of Oil Palm (Elaeis guineensis Jacq.) in The Productive Phase of Plant in North Labuhanbatu District
Get PDFThis study describes the condition of rejuvenated oil palm plants, the factors influencing their growth and the improvement efforts that can be undertaken to enhance oil palm productivity. The research was conducted on the institutional land of smallholders participating in the community oil palm rejuvenation program (PSR) that had entered the productive plant period (TM) in North Labuhanbatu Regency. The research location was determined by the agroclimatic typology reason, one of which was determined by the representative altitude. The research location was carried out in 3 locations with different altitudes, including Kuala Beringin Village, Kualuh Hulu District (100-115 masl), Pulo Jantan Village, NA IX-X District (32-38 masl) Terang Bulan Village, Aek Natas District (12-17 masl). The study results showed the growth performance of oil palm in the productive plant phase (TM) in North Labuhanbatu Regency. The selection of research locations was based on agroclimatic typology, particularly representative altitude. The study was carried out in three locations with varying altitudes: Kuala Beringin Village in Kualuh Hulu District (100-115 meters above sea level), Pulo Jantan Village in NA IX-X District (32-38 meters above sea level), and Terang Bulan Village in Aek Natas District (12-17 meters above sea level)
Potential of Trenggulun Leaf Essential Oil as an Attractant for Fruit Fly (Bactrocera sp) Pests in Cayyene Pepper (Capsicum frutescens) Plants
Get PDFFruit flies are the main pests of cayenne pepper. One of the environmentally friendly ways to control is with attractants. The research method used is a Group Randomize Desigen (RGD) factorial pattern with two treatment factors. The first factor is the concentration of trenggulun leaf essential oil which consists of four levels, namely K1=concentration of 0,50 ml, K2=concentration of 0,60 ml, K3=concentration of 0,70 ml, K4=concentration of 0,80 ml. The second factor is the application time (W) which consists of three levels, namely W1= application time every 7 days, W2= application time every 10 days, W3= application time every 14 days. This study aims to determine the most effective concentration and application time. The types of fruit flies trapped are female Bactrocera dorsalis, male Bactrocera dorsalis and female Bactrocera umbrosa. The most effective application time is 10 days with a concentration of 0.80 ml of essential oil. The number of female fruit flies trapped is more than male fruit flies because the content of essential oil compounds of trenggulun leaves contains β ocimen which is an attractant for female fruit flies Bactrocera dorsalis and Bactrocera umbrosa
Analysis of Weed Vegetation in Oil Palm Plants (Elaeis guineensis Jacq.) in Bekiun Plantation at PT. Langkat Nusantara Kepong
Get PDFManaging and controlling weeds in oil palm plantations is a crucial undertaking. This research aimed to identify the attributes and categorizations of the prevalent weeds in oil palm crops within the PT plantation. Kepong Bekiun plantation is located in the Kuala district of the Langkat Regency, situated in the North Sumatra Province of Indonesia. The research was carried out from April to July 2024. This research employed the observation method to collect data, which were then analyzed utilizing the understory vegetation analysis method and a purposive sampling technique. The parameters for observation include Relative Density, Relative Frequency, Relative Dominance, and Important Value Index (INP). The study findings revealed the composition of weed vegetation at the Bekiun Plantation in the 2020 and 2004 planting year blocks. Specifically, the results showed that there were 24 types of weeds present, which included 14 types of broadleaf weeds, 2 types of sedges, 4 types of grasses, and 4 types of ferns. The predominant weed species within the Poaceae family is the grass group, specifically Axonopus compressus. The attributes of grass weeds consist of annual weeds that propagate through vegetative means with stolons and generative means through seeds. The growth of Axonopus compressus weeds is optimal in dry to slightly moist, but not waterlogged, conditions
Optimization of Cocoa Rootstock Seedling Growth (Theobroma cacao L.) MCC-02 Clone Using KoHeA+MF Organic Fertilizer Application
Get PDFCocoa (Theobroma cacao) is a significant plantation crop with considerable economic importance. The beans derived from cocoa are abundant in antioxidants, which play a crucial role in cellular protection and the enhancement of endorphin levels. Given the increasing demand and favorable pricing, the future of cocoa cultivation appears promising. A critical factor influencing cocoa production is the quality of seedlings, particularly the rootstock. The growth of cocoa seedlings is affected by various elements, among which soil fertility stands out as a vital component of the planting medium. The necessary properties for optimal growth can be sourced from organic materials. One such organic amendment is KoHeA + MF organic fertilizer, which has demonstrated effective growth and yield improvements in pak choi. This study aims to formulate recommendations for an optimal planting medium composition that incorporates KoHeA + MF organic fertilizer for the nursery of cocoa rootstocks, ultimately producing high-quality seedlings. The research was conducted over a six-month period, from May to October 2024, at the experimental garden of the Payakumbuh State Agricultural Polytechnic, situated at an elevation of approximately 500 meters above sea level. The observed variables included leaf count, plant height, leaf length, and leaf width. The findings indicate that the most effective combination for cultivating the cocoa variety MCC-02 is a soil to KoHeA + MF ratio of 3:1
Potential Antioxidant Content of Three Types of Mimosa Weed from Various Plant Parts using The DDPH (2,2-diphenyl-1-picrylhydrazyl) Method
Get PDFAntioxidants are essential for neutralizing free radical and their presence in plants like mimosa weeds could be beneficial for various applications, include medical uses and agricultural development. This research focus on the potential antioxidant content of mimosa weed species (Mimosa pudica L., Mimosa invisa L., Mimosa pigra L.) from various plant parts (roots, stems, leaves and seed) using the DPPH method (2,2-diphenyl-1-picrylhydrazyl). This study aims to understand the interaction between different types of mimosa weeds and various plant parts in relation to antioxidant activity levels, as well as phytochemical content across the three types of Mimosa sp. using the DPPH method and determine the best-performing weed and plant parts based on the smallest IC50 value and highest phytochemical content. This research was conducted in Padang City. Sample drying and extraction were carried out at the Plant Physiology Laboratory, Faculty of Agriculture, Andalas University, and phytochemical tests were performed at Vahana Scientific Laboratory Padang. The research took place from February to May 2024. The design used was a factorial Completely Randomize Design (CRD). The first factor is the treatment of Mimosa sp. weed species, namely: Mimosa pudica L., Mimosa invisa L. and Mimosa pigra L. The second factor was the treatment of different parts of the Mimosa sp. Namely: root, stem, leaf and seed. From these two factors, 12 treatment combinations were obtained, each repeated three times, resulting in a total of 36 experimental units. The research data were analyzed statistically with the F test at the 5% level and if F count > F table at 5%, then it continued with Duncan’s New Multiple Range Test (DNMRT) at the 5% level. The results showed that there was an interaction between mimosa weed species and plant parts in terms of antioxidant activity, as indicated by the IC50 values. The strongest antioxidant was found in the leaves of Mimosa pigra L., with an antioxidant value of 41.89 mg/L
Utilization of Coconut Water Waste as Liquid Organic Fertilizer for the Growth of Mung Bean Microgreens (Vigna radiata)
Get PDFMicrogreens represent a novel approach to urban farming, characterized by its simplicity, straightforwardness, and cost-effectiveness. This research aims to evaluate the use of coconut water waste as a liquid organic fertilizer (POC) in promoting the growth of green bean microgreens (Vigna radiata). The study was conducted over one week in the Kotapinang District of South Labuhanbatu Regency, utilizing analysis of variance (ANOVA) to assess four treatments with varying doses of coconut water POC: P0 as the control, 10 ml, 20 ml, and 30 ml. The data collected were analyzed using SPSS version 25.00, and the BNT test was applied at the 5% significance level to evaluate the differences between treatments. The results of the observations indicated that at 4 days after planting (DAP), the P3 treatment yielded the greatest plant height, averaging 13.83 cm. Conversely, at 7 DAP, treatment P1 exhibited the highest growth, with an average plant height of 19.66 cm. In terms of leaf width, treatment P1 also performed the best, with an average leaf width of 1.2 cm. These findings suggest that the application of coconut water as POC can significantly enhance the growth of green bean microgreens
Agronomic Appearance of Red Calliandra Plants (Calliandra calothyrsus) in Different Locations
Get PDFRed calliandra (Calliandra calothyrsus) is a leguminous tree native to Indonesia. This species can serve as a renewable alternative energy source to replace coal. Calliandra wood is highly flammable and can be utilized as biomass energy, offering a quality comparable to coal's. PT Semen Padang employs red calliandra as an alternative to coal in cement production, which results in lower carbon emissions. The company has planted calliandra in various locations throughout West Sumatra. This descriptive exploratory study employs a survey method to investigate the places where the plants grow, utilizing direct observation techniques. The three locations observed were behind the PT Semen Padang Training Center (Indarung, Lubuk Kilangan District, Padang City, West Sumatra), PT Semen Padang Mine (Indarung, Lubuk Kilangan District, Padang City, West Sumatra), and Sialangan (V Koto Timur District, Padang Pariaman Regency, West Sumatra). A total of 10 plants were sampled from each location, resulting in 30 plant samples overall. Subsequently, observations and data analysis were conducted. The characteristics observed included the morphology of stems, leaves, and flowers and a chemical analysis of the soil, which assessed pH, organic carbon, total nitrogen, total phosphorus, and total potassium. The results indicated that plant age, soil nutrient availability, and environmental conditions significantly influenced* the vegetative and generative growth of *Calliandra calothyrsus*. Locations with neutral soil pH and high phosphorus content supported greater stem diameter growth, while areas with elevated organic carbon and nitrogen levels promoted enhanced leaf development. Variations in the color of stems, leaves, and flowers were closely related to plant age, light intensity, and the availability of micronutrients. In conclusion, the agronomic differences in red *Calliandra* are determined by the interaction among plant age, soil nutrient status, and growing environment, all of which are critical factors for optimizing biomass production in the future
Increasing Growth and Yield of Soybeans (Glycine max L.) by Providing Banana Stem LOF and SP-36 Fertilizer
Get PDFSoybean productivity in Indonesia remains relatively low, partly due to declining soil fertility. One approach to address this issue is the application of liquid organic fertilizer (LOF) and phosphate fertilizers, such as SP-36. This study aimed to evaluate the effects of various concentrations of banana corm-based LOF and different doses of SP-36 fertilizer, as well as their interaction, on the growth and yield of soybean plants (Glycine max L.). The research was conducted in Medokan, Surabaya, using a two-factorial Randomized Block Design (RBD) with four levels of LOF concentration (0, 500, 600, and 700 ml/l) and three levels of SP-36 concentration (150, 200, and 250 kg/ha). The observed parameters included plant height, number of pods, percentage of empty pods, seed weight per plant, seed weight per hectare, and fruit set. The results indicated a significant interaction between LOF and SP-36 on plant height 42 days after planting, number of pods, percentage of empty pods, and fruit set. The most effective treatment was the combination of 600 ml/l banana corm LOF and 200 kg/ha SP-36. However, seed weight per plant and hectare did not show a significant effect. This study concludes that the appropriate combination of banana corm LOF and SP-36 fertilizer can significantly enhance soybean growth and yield. It is recommended to use 600 ml/L of banana corm LOF combined with 200 kg/ha of SP-36 fertilizer to optimize plant height, number of pods, and fruit set in soybean cultivation
Analysis of Genetic Variation of Ganoderma sp. as an Initial Step in Controlling Palm oil Basal Stem Rot Disease
Get PDFBasal stem rot (BSR) disease caused by Ganoderma spp., particularly Ganoderma boninense, represents a major threat to the sustainability of Indonesia's oil palm industry, resulting in productivity losses of 50-80%. High genetic variation among pathogens constitutes a primary obstacle in developing effective control strategies. This study aimed to analyze the genetic variation in Ganoderma as a preliminary step toward controlling basal stem rot in oil palm using ITS region DNA sequencing with ITS1 and ITS4 primers. Three Ganoderma sp. isolates were used: code 1 from the Biotechnology Laboratory of Lampung University, code 2 from the Plant Pest and Disease Laboratory of Gadjah Mada University, and code 3 from an online store. DNA extraction was performed using the TIANGEN Plant Genomic DNA Kit; PCR amplification with ITS1-ITS4 primers; and the PCR products were sequenced and analyzed using BioEdit and NCBI BLAST. Results showed that isolates code 1 and code 2 were identified as Ganoderma boninense, while isolate code 3 was contaminated with Fusarium sp. Alignment analysis using BioEdit confirmed extremely high genetic variation between the two G. boninense isolates with extensive nucleotide polymorphisms. This significant intraspecific diversity indicates the complexity of basal stem rot pathogen populations and emphasizes the importance of molecular approaches for accurate characterization. These findings provide a scientific foundation for developing more effective and adaptive control strategies and support oil palm resistance breeding programs based on representative pathogen genetic characteristics