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INDONESIA
Jurnal Ilmu Pertanian
Published by Universitas Gadjah Mada
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 10, No 1 (2025): April" : 7 Documents clear
Seed germination and growth of Joseph’s coat (Amaranthus tricolor L.) following exposure with Naphthalene-1-Acetic Acid (NAA) and 2,4-Dichlorophenoxyacetic Acid (2,4-D) Ilmam, Hadyan Pratama Lutfi; Dewi, Kumala
Jurnal Ilmu Pertanian Vol 10, No 1 (2025): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.88687

Abstract

Amaranthaceae is a family of plants that can be used as vegetables and medicinal herbs. Amaranthus tricolor L. is commonly cultivated because it has fast growth rate and short life cycle that can be boosted by growth regulators such as auxins. A. tricolor L. is commonly cultivated because it has a fast growth rate and short life cycle. Growth regulators, such as auxins, can boost the growing process. This research aimed to study the effects of Naphthalene-1-Acetic Acid (NAA) and 2,4-Dichlorophenoxyacetic Acid (2,4-D) on the seed germination and growth of A. tricolor L. and to determine effective concentration of NAA or 2,4-D application to A. tricolor L. This research was arranged in a completely randomized design with exogenous hormones application as treatments. The treatments consisted of various concentrations of NAA and 2,4 D (0 ppm, 10 ppm, 20 ppm, 40 ppm, and 80 ppm) applied to A. tricolor L. plants every two weeks. Germination test of A. tricolor L. was carried out for 14 days, and the application of NAA and 2,4-D on A. tricolor L. plant was given for 56 days. Observations were made on the plant height, fresh and dry weight, stomatal density, and the content of chlorophyll and carotenoid. Data analysis was conducted using one-way analysis of variance and Duncan Multiple Range Test (DMRT) with significance level of 5%. NAA treatment delayed seed germination by one day compared to control, while 2,4-D treatment inhibited germination for several days with the higher concentration of 2,4-D applied, the greater inhibition of seed germination. NAA of 10 ppm increased plant height, fresh and dry weight, chlorophyll content, and leaf area of A. tricolor L. The application of NAA and 2,4-D reduced stomatal density and carotenoid content of A. tricolor L., with greater effects at higher concentrations of synthetic auxins. This research concluded that NAA or 2,4-D inhibited germination of A. tricolor L. seeds, NAA of 10 ppm effectively increased plant growth and chlorophyll content, but higher NAA concentrations inhibited growth. Application of 2,4-D with concentrations above 40 ppm could be lethal for A. tricolor L. 
Hydro-chemical characteristics and evaluation of water quality for irrigation purposes in the Madukismo Sugar Factory Area, Kasihan, Bantul Artiwiputri, Hayuning Endraswari; Pulungan, Nur Ainun Harlin Jennie; Gunadi, Rahmat
Jurnal Ilmu Pertanian Vol 10, No 1 (2025): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.93894

Abstract

River water is crucial for irrigation requirements although it may be jeopardized by both natural phenomena and anthropogenic activity. The rice fields in Mrisi Hamlet, Tirtonirmolo, Bantul are irrigated by water sourced from the vicinity of the Madukismo sugar factory. This raises worries on the contamination of irrigation water by waste from sugar factories, which would subsequently affect rice fields. This study aimed to (i) examine the quality and hydro-chemical features of irrigation water in the study region, and (ii) investigate the impact of irrigation water on NPK concentration in soil and rice yield. The employed research approach is descriptive quantitative. Laboratory analysis was conducted on samples of water, soil, and vegetation. The analysis of water samples was conducted at the source areas, as well as at the inlet, middle, and outflow points of the tertiary irrigation channel traversing the rice fields. Samples were collected from rice fields irrigated with uncontaminated water and those contaminated by sugar industry effluent. The evaluation of irrigation water quality is founded on PP No. 22 of 2021. A statistical study using the ANOVA test was conducted to evaluate plant development across different locales. The study's results indicated a considerable disparity in irrigation air quality between contaminated and unpolluted areas, as evidenced by the metrics of air temperature, total dissolved solids (TDS), chemical oxygen demand (COD), and biological oxygen demand (BOD). The quality of irrigation water contaminated by sugar industry effluent surpassed the established maximum limit for irrigation water. Nevertheless, the waste from the Madukismo sugar refinery positively influenced plant output. The growth and productivity of rice plants on contaminated soil exceeded those on unpolluted land. The rice yield in the contaminated region was 8,000 kg/Ha, higher than in the control area, which yielded just 4,800 kg/Ha.
Assessment of acid soils for sanitary landfill in Khana Local Government Area of Rivers State, South – South, Nigeria Peter, Kaananwii Dum; Nwidae, Vincent Mmbue
Jurnal Ilmu Pertanian Vol 10, No 1 (2025): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.96883

Abstract

Open dumping of refuse is the order of the day and the collective method for discarding municipal solid waste, and the inefficient way of handling waste coupled with poor planning of landfill has resulted to environmental pollution and land degradation. Sanitary landfills are therefore necessary for the appropriate disposal of municipal waste. Thus, this study was carried out to assess the soils of Beeri in Khana Local Government Area for sanitary landfill. Three soil map units (pedons) based on vegetation, toposequence and drainage were identified and delineated in the study area. A modal soil profile of 2 m × 2 m × 2 m dimensions was dug in the identified soil map units, and the genetic horizons were labeled and sampled for laboratory analysis. Results obtained revealed that sand fractions varied from 804 g/kg in horizon-B of pedon 2 to 924 g/kg in pedon 1; silt content varied between 14 g/kg in horizon-AB of pedon 3 to 24 g/kg in B-horizon of pedons 1 and 2; and clay content decreased from 172 g/kg in B-horizon of pedon 2 to 52 g/kg in pedon 1. Bulk density decreased from 0.935 gcm⁻³ in horizon-Ah of pedon 1 to 1.4550 gcm⁻³ in B-horizon of pedon 2. Soil pH ranged from strongly acidic 4.89 in AB-horizon of pedon 2 to slightly acidic 5.47 in Bw-horizon of pedon 1. Effective cation exchange capacity decreased from10.86 cmolkg⁻¹ in pedon 2 to 2.84 cmol/kg in pedon 3. Soil suitability assessment of the study area indicated that the soils were not suitable (N) for the construction and operation of sanitary landfill as a result of defects in soil texture, high sand and low clay contents, porosity, and low ECEC. Therefore, it is necessary to make efforts to improve texture, bulk density, porosity, and ECEC through appropriate management practices so that the physical and chemical properties of the soil can be improved to a moderate to high level of suitability for sanitary landfill.
Yield gap analysis between irrigated and rainfed rice agroecosystem Handoko, Handoko; Kurniasih, Budiastuti; Taryono, Taryono
Jurnal Ilmu Pertanian Vol 10, No 1 (2025): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.97040

Abstract

Rice is an essential crop for worldwide food security, providing the primary feeding for nearly half of the people on earth. In order to meet the increasing demand for rice, it is necessary to reduce the yield gap between irrigated and rainfed rice agroecosystem; therefore, a descriptive approach is used to estimate the yield gap (Yg) between irrigated (Yp) and rainfed rice agroecosystems (Yw) and identify its key factors. This research aimed to identify the causes of the yield gap between irrigated and rainfed rice agroecosystems and evaluate the causes of the yield gap so as to minimize the yield gap. This research had been conducted from December 2021 to April 2022 in two different locations, an irrigated and a rainfed rice agroecosystem (planted between M. cajuputi stands). Fourteen genotypes were grown in a complete randomized block design consisting of three blocks in each location (irrigated and rainfed rice fields). The experimental unit at each research location was 20 m² (4 m × 5 m), and the harvest area was 12 m² (3 m × 4 m), consisting of 192 populations of rice plants. The results showed that soil fertility limiting factors, including total nitrogen, phosphorus and available potassium caused the yield gap. The maximum yield recorded was in G2 (8.83 ton.ha⁻¹) in the irrigated agroecosystem, while the minimum yield was in G8 (0.64 ton.ha⁻¹) in the rainfed agroecosystem. Yield gap analysis revealed a gap of 5.27 ton.ha⁻¹ between the irrigated and rainfed systems. The most significant yield gap was observed in G3 at (6.92 ton.ha⁻¹), whereas the least was in G10 (3.17 ton.ha⁻¹). The genotype G2, exhibiting the highest yield in the irrigated agroecosystem, is recommended for planting, while G4, with a potential yield of 4.14 ton.ha⁻¹, is suggested for rainfed agroecosystems.
Effects of color shade-net on the growth and yield quality of garlic in the lowlands area Rachma, Izza Azkiya; Sulistyaningsih, Endang; Handayani, Valentina Dwi Suci
Jurnal Ilmu Pertanian Vol 10, No 1 (2025): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.98082

Abstract

Garlic is a bulbous plant that grows and produces superb bulb yields in environments with temperatures between 15−25°C and humidity levels of 60−70%. A challenge in garlic growing in lowland areas is the suboptimal bulb growth caused by elevated air temperatures (23−37°C). Through experimentation with the 'Lumbu Putih' variety, predominantly cultivated at low elevations in Gunung Kidul Regency, the use of shade nets is anticipated to modify the microclimate, hence establishing optimal circumstances for garlic plant development. This research specifically targeted to identify the shade net colors that can alter the microclimate to optimize the development, productivity, and quality of garlic production. The study was performed in Logandeng Village, Playen District, Gunung Kidul Regency, Yogyakarta Special Region, at an elevation of approximately 215 meters above sea level. The treatments were organized according to a randomized complete block design (RCBD) including three levels: open land as a control, white shade nets, and black shade nets. Each treatment level comprised five replications organized as blocks. The data collected was analysed by analysis of variance (ANOVA) and the least significant difference (LSD) test at a significance threshold of 5%. The findings indicated that the shade net treatment enhanced the leaf count, leaf surface area, plant development rate, and dry weight per plant. The black shade net treatment yielded a superior quantity of cloves and an increased bulb density relative to the white shade net. According to the findings of structural equation modeling (SEM) study, garlic production is directly controlled by the yield component of 96.2% and indirectly affected by the growth component of 88.3%. The yield and growth component factors that generate direct and positive contributions, as indicated by the Stepwise Multiple Regression analysis, include total root length, plant dry weight, bulb diameter, and clove count.
Utilization of red cabbage (Brassica oleracea var. Capitata L.) anthocyanins as a sensor for nitrite detection in domestic wastewater Rogo, Ben Haryan Adi; Natasya, Vika Aulia; Attamimi, Najwa Sabila; Muliawan, Sidiq; Laila, Farida
Jurnal Ilmu Pertanian Vol 10, No 1 (2025): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.98146

Abstract

Monitoring wastewater quality is increasingly essential for enhancing wastewater treatment procedures. Domestic wastewater, produced by residential and commercial operations, contains considerable organic, inorganic, and biological pollutants, including nitrite ions, which provide serious health hazards. This research develops a nitrite detection sensor utilizing anthocyanins derived from red cabbage (Brassica oleracea var. Capitata L.). The extraction utilized ultrasonic-assisted extraction (UAE) using a solvent combination of 96% ethanol, distilled water, and 80% acetic acid, resulting in the maximum anthocyanin content of 7.653 mg/g dry weight. The sensor's performance was assessed in terms of stability, selectivity, and sensitivity. The results demonstrated temperature stability at 30°C, with a retention rate of 98.92%, and selectivity for nitrite was verified in the presence of several possible interfering chemicals. Sensitivity tests indicated a detection threshold of 250 ppm for nitrite. The sensor exhibited a shelf life of 19 hours at ambient temperature (25°C) and 11 days at 5°C.
Genetic parameters and yield potential of Indonesian soybean varieties (Glycine max L.) in wetland during dry season Ridara, Fadila; Fitriani, Riska; Algina, Azka; Ustari, Debby; Karuniawan, Agung
Jurnal Ilmu Pertanian Vol 10, No 1 (2025): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.103816

Abstract

Cultivating soybean in wetland areas presents unique challenges, particularly during water-limited conditions like dry season, where yield performance can vary significantly among genotypes. This research aimed to assess the yield potential of Indonesian soybean varieties in wetland during dry season, to estimate genetic parameters, and to determine the relationship among traits. Twenty soybean genotypes were evaluated using Randomized Complete Block Design (RCBD) with three replications. Yield components measured included seed weight per plot, number of seeds per plant, and overall yield potential (tons per hectare). The results revealed significant variation among the genotypes. The estimation of genetic parameters indicates that traits comprising plant height, 100-seed weight, and the number of seeds per plant have high heritability and significant CVG/CVP ratios, suggesting efficient genetic selection potential and opportunities for genetic improvement through breeding. Pearson’s correlation network plot shows positive associations between traits, including plant height (PH), weight of biomass (WB), weight of seed per plot (WSP) and yield. 'Deja 1' variety exhibited the highest yield potential at 1.75 tons per hectare, while 'BS 99' variety showed the lowest at 0.18 tons per hectare. These findings underscore the importance of genotype selection in enhancing soybean productivity in water-limited environments. The study offers valuable insights for future breeding programs aimed at improving soybean yields in challenging conditions, such as dry season in wetlands, thereby contributing to sustainable agricultural practices in Indonesia.

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