Jurnal Ilmu Pertanian Indonesia
Not a member yet
955 research outputs found
Sort by
Severity and Incidence of Spodoptera frugiperda Attack on Maize Plants in Sleman District
Full text linkSpodoptera frugiperda (Lepidoptera: Noctuidae) is an invasive pest of maize that has caused damage and economic losses to maize crops in Indonesia. Damage caused by its larvae can be seen from the incidence and level of damage to maize plants, especially in the leaves. This study aimed to analyze the severity and incidence of S. frugiperda larvae infestation on maize plants in Sleman Regency. The study was conducted on the vegetative phase of maize plants in Sleman District. Sampling locations were determined using the survey method, and the fields were using the stratified scheme. The maize fields used for sampling were decided by a purposive method. Calculation of incidence and damage level was done using the letter W scouting procedure. Data was analyzed with a correlation test to see the relationship between damage level and S. frugiperda incidence in the district. The highest damage level was found in Ngaglik Subdistrict with 51 infested plants with high damage, while the lowest was found in Minggir Subdistrict with 179 infested plants with low damage. The highest incidence rate was found in Seyegan (47.55%), and the lowest in Minggir Subdistrict (11.96%). The conclusion of this study is that S. frugiperda infestation has been found in Sleman Regency with low to severe infestation, while the incidence rate is low to moderate.
Keywords: Maize, occurrence, severity, Sleman, Spodoptera frugiperd
The Effect of Selenium Biofortification on The Growth and Biochemical Responses of Two Microgreen Species
Full text linkMicrogreens are a type of vegetable crop that may be grown at a young age (7−14 days) and have a high nutritional value. Microgreens from the Brassicaceae family, such as red radish and broccoli, contain a variety of antioxidants. Selenium biofortification improves microgreen quality and selenium content. The purpose of this study was to determine the influence of selenium levels and the differences between microgreen species. This study was carried out in November−December 2023 at a housing development on Kudan Street in Semarang City, Central Java. Chlorophyll and carotenoid analyses were performed at the Plant Physiology and Breeding Laboratory, Faculty of Animal and Agricultural Sciences, the Waste Treatment Laboratory at the Faculty of Engineering conducted the phenol analysis, while the Cendekia Nanotech Hutama Chemical and Biological Analysis Laboratory in Semarang City performed the antioxidant analysis. This study utilized a randomized complete block design with a factorial pattern of 5×2 and four replications. The first factor was selenium concentration, which had five levels: 0, 2, 4, 6, and 8 mg/L. The second factor was microgreen species, which consisted of two components: red radish and broccoli microgreens. The study found that treating broccoli microgreen with selenium at a concentration of 4 mg/L increased total chlorophyll content and antioxidant capability. Broccoli outperformed red radish microgreens on all metrics.
Keywords: antioxidant, biofortification, microgreens, weight, seleniu
Physiological Performance and ‘Productivity of Quail’ Production Period with Addition Moringa Leaf Flour (Moringa oleifera L.) in Feed
Full text linkMoringa leaf powder is a processed product derived from the Moringa tree (Moringa oleifera L.). It contains a rich source of phytonutrients that are effective antioxidants that enhance the health status of humans and livestock. This study assesses quails\u27 physiological performance and productivity during the production period when supplemented with Moringa leaf powder in their feed. The measured parameters include hematological values, stress indicators, performance, and egg chemical quality. The ‘study used 120 female’ quails aged 7 weeks, reared for 4 weeks. A Completely Randomized Design (CRD) was employed, consisting of four levels of dietary treatments and three replications. The supplementation of Moringa leaf flour was administered through feed for 28 days at each treatment level. ‘Data were analyzed using’ ANOVA (Analysis of Variance) and descriptive analysis. The results indicated that the addition of Moringa leaf flour in feed could maintain physiological performance, improve health status, reduce cholesterol levels in egg yolk, and increase iron (Fe) content in egg yolk. The best results in this study were obtained at a supplementation level of 7.5% Moringa leaf flour. The conclusion of this study is that Moringa leaf flour is feasible as a feed supplement at a dosage of up to 7.5%.
Keywords: antioxidant, cholesterol level, egg yolk, feed supplement, stress indicato
Exploration and Identification of the Malacca Plant in North Padang Lawas District, North Sumatra
No full textThe Malacca plant is well-known for its therapeutic benefits and is commonly used to make jam. It is critical to understand the existence and diversity of Malacca plants to preserve germplasm and improve attributes through plant breeding. This study sought to investigate and identify malacca plants in North Padang Lawas Regency. The study was conducted in three subdistricts: Halongonan, Padang Bolak, and Padang Bolak Julu, from May to June 2023. This study employed a survey using purposive sampling. Malacca plant samples from the generative period (flowering and fruiting) were selected. The observation included vegetative characteristics (plant height, stem bark color, leaf size, shape, and color) as well as generative characteristics (flower and fruit shape and color). The findings revealed that there were eight accessions dispersed throughout four settlements. One accession, HT1, is designated as the Phyllanthus emblica species due to changes in leaf, flower, and fruit morphology. In contrast, the remaining seven accessions are categorized as P. indofischeri. The changes can be seen in the shape of the leaf tips, stigma branching, and fruit shape and size.
Keywords: indian gooseberry, Phyllanthus emblica, Phyllanthus indofischer
Added Value Analysis and Affecting Factors in Coconut Sugar Processing
Full text linkThe general goal of processing coconut sugar obtained from coconut sap is to maximize its added value. Purbalingga Regency is a major producer of coconut sugar in Central Java. Molded coconut sugar is the most commonly produced variety of coconut sugar. The purpose of this study is to determine the added value of the coconut brown sugar processing industry, as well as the elements that influence it. The Hayami method of added value analysis was applied, as well as multiple linear regression analysis. The research employed up to 36 coconut brown sugar craftspeople and took place between February and March 2021. The results showed that processing coconut sap adds Rp. 689.81 per kilogram, with an added value ratio of 34.86 percent. The value added category falls into the medium group. Production capacity, raw materials, output price, raw material costs, and other input prices all have a substantial impact on the added value of converting coconut sap to sugar.
Keywords: coconut sap, added value, coconut sugar, Hayam
Factors Determining the Performance of the Indonesian Agricultural Sector in the Era of Climate Change
Full text linkThe agricultural sector plays a crucial role in Indonesia, serving as both a provider of food and a key driver of economic growth. This study aims to analyze the factors influencing Indonesia’s agricultural sector from 1981 to 2021, focusing on agricultural production and its economic value. Climate change has emerged as a critical issue affecting agriculture, with greenhouse gas emissions serving as proxies for measuring its impact. This study employs the Autoregressive Distributed Lag (ARDL) model to examine both short- and long-term relationships. The findings indicate that, in the long run, agricultural land area and economic growth significantly affect the agricultural sector. In the short term, agricultural land area, economic growth, and fertilizer usage are the key factors. However, climate change did not have a significant negative impact on agricultural decline. In contrast, fertilizer usage was positively correlated with agricultural production. These findings highlight the essential role of government policy in fostering agricultural sector development in Indonesia. Strategic initiatives should focus on ensuring an adequate fertilizer supply, expanding agricultural land, and promoting key economic sectors that drive growth and support agricultural sustainability.
Keywords: agricultural sector, ARDL model, climate change, Indonesi
Dry Land Entisol Chemical Properties and Pak Choi Response Upon Application of Tofu Waste LOF and Biochar
Full text linkThis study aimed to examine the changes in the chemical properties of dryland Entisols upon the application of liquid organic fertilizer (LOF) from tofu waste and biochar, especially the content of C-organic, total N, total P, and P2O5 (available P), and the yield of pak choi. This study used a completely randomized factorial design. The first factor was the dose of tofu waste LOF (100, 200, and 300 ml/L water) and the second factor was the type of biochar (soil+rice husk biochar, soil+sawdust biochar, soil+rice husk biochar+ sawdust biochar). The combination of tofu waste LOF (100 ml/L) and the mixture of rice husk biochar and sawdust biochar (1:1:1) resulted in the most significant increase in C-organic (7.37%), total N (0.61%), total P (178.01 mg/100 g), and P2O5 (157.23 ppm) compared to other treatments. However, at a high dose of tofu waste LOF (300 ml/L of water), the contents of C-organic, total N, total P, and P2O5 tended to decrease, presumably due to the low pH of the tofu waste LOF. In terms of plant parameters, rice husk biochar treatment was the best for increasing the fresh weight of the shoots. This indicates that the optimal combination of LOF and biochar improved the chemical properties of Entisol analyzed after harvesting but did not increase the yield of pak choi at the beginning of application. However, rice husk biochar alone provided the best results for pak choi as an indicator plant.
Keywords: C-organic, nitrogen, phosphorus, soil fertility, Timo
Response of Pollen and Productivity of Rice Plants to the Application of Salicylic Acid under Drought Stress
Full text linkRice plants (Oryza sativa) are among the most significant food crops in human life. Efforts to increase food production face a variety of challenges, including droughts. Drought stress is abiotic stress that has a significant impact on rice plant growth and development. Plants treated with salicylic acid are more resistant to water shortage. Salicylic acid influences plant growth in terms of weight, height, and grain yield. The use of salicylic acid may increase the weight of plant seedlings. The purpose of this study was to determine how rice plant productivity responds to the addition of salicylic acid during drought stress. The study was carried out in a greenhouse from August to December 2020 utilizing a Completely Randomized Design with two variables: plant variety and drought stress. The cultivars used were Indragiri, Mendawak, and IR64. The drought treatment factors were control, drought stress, and drought stress treated with salicylic acid. There were nine treatment combinations and three replications, totaling 27 experimental units. The data collected were analyzed using Analysis of Variance. If significant differences were discovered, the analysis was extended with Duncan\u27s Multiple Range Test at a 95% confidence level. The findings revealed that both individual factors and their interactions had a substantial influence on various variables. The interaction factor had a substantial impact on pollen fertility, panicle length, number of full grains, weight per 1,000 grains, and yield potential. The rice variety had a substantial effect on pollen fertility, panicle length, number of filled grains, and yield potential, but not on the weight of 1000-grains.
Keywords: drought stress, rice, salicylic aci
Estuary and Marine Waters Characteristics of the Sungai Nibung Village Coastal Waters, Kubu Raya, West Kalimantan
Full text linkSungai Nibung Village is a KKPP3K (Coastal Waters and Small Islands Conservation Area) in Kubu Raya District. This community features an abundance of diverse natural resources, such as crab, fish, shrimp, squid, octopus, and finless dolphins. This indigenous biota is sustained by fertility and high water quality. Water fertility reveals high nutrient concentration and identifies phytoplankton as primary producers. Water contains nutrients in the form of nitrates and phosphates. Phytoplankton and other aquatic species require these nutrients to survive. The concentration of chlorophyll-a, the primary pigment of phytoplankton, which has a role in photosynthesis, can also be used to estimate the trophic state of waterways. The fertility of Sungai Nibung Village waters in the sea (Station I and II), estuary (Station III), and river (Station IV and V) has been assessed. Nitrate and phosphate levels in water samples were assessed in line with SNI 06-2480-1991 and SNI 06-6989.31.2005, respectively. The chlorophyll-a was evaluated using the trichromatic method with a UV-Vis spectrophotometer at 664, 647, and 630 nm. Sungai Nibung Village\u27s waters include 0.9−1.5 mg/L nitrate and 2.06−2.19 mg/L phosphate. Chlorophyll-a levels range from 2−5 μg/L, placing them in the low category.
Keywords: chlorophyl-a, Sungai Nibung Village, nitrate, phosphat
Identification and Distribution of Marine Debris along the West Aceh Coastline
Full text linkThis study was undertaken in September 2023 in the West Aceh Coastal area with the goal of identifying and analyzing the distribution of marine creatures discovered at the two research sites. The sampling of marine debris was determined using a transect length of approximately 100 m. Transect distances were separated into four categories: 0, 25, 50, 75, and 100 m. Marine debris was detected using Lippiat et al. (2013) categories and NOAA (2013) size classifications. The data on the identification and distribution of marine debris was analyzed descriptively. The results revealed that organic waste (wood and its derivatives) was in the highest quantity and composition at both research stations, with 1386 (73%) and 8953 fractions (97.1%). This is followed by the number and composition of inorganic waste (plastic) at the two research stations, which are 492 fragments (26%), and 205 fragments (2.2%). The lowest amount and composition of inorganic waste (non-plastic) were found at both research stations, such as metal/metal, glass, rubber, and clothing/other fibers, namely (metal: 6 and 11; glass: 2 and 1; rubber: 2 and 28; clothing and other fibers: 18 and 24) with respective compositions ranging (metal: 0.3% and 0.1%; glass: 0.1% and 0.0%; rubber: 0.1% and 0.3%; clothing and other fibers: 0.9% and 0.3%). A one-way examination of the spatial distribution of marine debris at each research substation (Substations 1, 2, and 3) revealed no significant differences (p value > 0.05) between the two research stations.
Keywords: coastal, debris, marine, West Aceh