cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Enik Nurlaili Afifah
Contact Email
eniknurlaili21@ugm.ac.id
Phone
+628112632106
Journal Mail Official
jip.faperta@ugm.ac.id
Editorial Address
Gedung A1.Lt.2 Fakultas Pertanian, Universitas Gadjah Mada Jalan Flora, Bulaksumur, Yogyakarta 55281
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
jurnal Ilmu Pertanian (Agricultural Science)
Published by Universitas Gadjah Mada
ISSN : 01264214     EISSN : 25277162     DOI : https://doi.org/10.22146/ipas
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Ilmu Pertanian (Agricultural Science) with registered number ISSN 0126-4214 (print) ISSN 2527-7162 (online) is a scientific open access journal published by Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI (Perhimpunan Sarjana Pertanian Indonesia). Ilmu Pertanian (Agricultural Science) provides a forum for the publication of scientific articles in the scope of agricultural sciences with priority on science and plant technology (plantation, horticulture, and forestry), including aspects of postharvest and socioeconomic. Ilmu Pertanian (Agricultural Science) is published three times annually, April, August, and December.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 539 Documents
 6   7   8   9   10 
Correlation of Growth Parameters with Yield of Two Cassava Varieties Amarullah Amarullah; Didik Indradewa; Prapto Yudono; Bambang Hendro Sunarminto
Jurnal Ilmu Pertanian Vol 1, No 3 (2016): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.10706

Abstract

The correlation of major growth parameters with the yield of cassava in different growth phases was investigated in 2013 and 2014. This experiment was conducted to assess the effect of two cassava varieties and the different growth phases to the yield and yield components. In experiment, the varieties as treatment were arranged in a randomized complete block design (RCBD) with three replications. Two varieties consisted of superior Adira-4 and local varieties Singgah were used. The growth parameters (plant height, stem diameter, leaf number) and yield components (number of tuber, weight per tuber and tuber yield) in early growth phase, maximum vegetative growth phase and charging tuber phase, were observed. Based on the correlation results, the growth parameters and the yield highly affected to the final outcome of cassava tubers at different growth phases. In the early growth phase, occurs high demand to assimilate with the expense of storage root. However, from the maximum vegetative phase, growth parameters began to show a significant positive contribution to the tuber weight. Weight of fresh tuber in both varieties increased at the charging of tubers phase and thereafter (enlarged bulb). The early growth phase and maximum vegetative phase might not generate a significant contribution to the final yield of cassava tuber. Making those two periods were not suitable time for optimum harvesting result, and it still depended on the variety and its allocation.
Analysis of Rice Price Trend and Vertical Integration of Rice Market in Indonesia Asih Kusumaningsih; Jamhari Jamhari; Dwidjono Hadi Darwanto
Jurnal Ilmu Pertanian Vol 1, No 2 (2016): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.10783

Abstract

The aims of this study were (1) to determine the trend of retail rice price in Indonesia and the price of grain at the farmer level in Indonesia and (2) to identify the vertical integration of the rice market in Indonesia. The monthly data of retail rice price and the price of grain at the farmer level (price of harvested dried grain at the farmer level) in Indonesia during January 2008 - January 2016 were used in this study. The least squares method was applied to determine the trend of prices, while Co-integration Model of Engle-Granger and ECM was used to estimate the vertical integration of Indonesian rice market. The results indicated that both types of prices had an upward trend. In the analysis of the vertical integration of rice market in Indonesia, there was a long-term balance relationship and short-term equilibrium relationship.
Proline Activity and Growth of Oil Palm affected by Aluminium Toxicity and Silica as Ameliorant Annisa Khoiriyah; Eka Tarwaca Susila Putra; Prapto Yudono
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): 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.10786

Abstract

The research aims to investigate the effects of silica (Si) as an ameliorant on the proline compound concentration and the growth response of oil palm exposed to aluminum toxicity. The research was arranged in a complete randomized block design with 8 blocks as replications. The first factor was Al toxicity which consisted of two levels as without and with Al toxicity. Al toxicity treatment was applied by giving 300 ppm of Al concentrate along with watering activity regularly. The second factor was the application of silica which consisted of four levels as 0, 32, 64 g/plant. Proline and growth activities of leaf area, plant height, number of leaves, and dry weight were observed in the research. The data subjected to analysis of variance (ANOVA) at 5% test level. If the result of ANOVA showed significant differences among treatments, then the data would have been analyzed by Duncan’s Multiple Range Test (DMRT) at 5% test level. The results of the research provide information that Al toxicity increases proline compound in the plant tissues and decreases leaf area, plant height, number of leaves, and dry weight of Oil Palm. Applying Si at the level of 64 g/plant could increase proline concentrate and dry weight of oil palm exposed to A1 toxicity. Proline compound in the plant tissues did not have any correlation with the growth of oil palm. Thus, this case indicated that proline was a product and not a plant tolerant mechanism of Al toxicity.
The Influence of Attitude, Subjective Norm, and Perceived Behavioural Control Toward Snack Consumer Behaviour in Halal Labeling in Yogyakarta Ayu Afsari; Any Suryantini; Jangkung Handoyo Mulyo
Jurnal Ilmu Pertanian Vol 2, No 1 (2017): 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.10827

Abstract

Halal label was not only related to substances forbidden for a particular religion, but was also associated with many other important things. The talk about halal label issue also meant a talk about health and hygiene. This research aimed to determine the learning level of consumer of the concept of halal-labeled snack; to know how to influence learning, attitudes, subjective norms, perceived behavioural control, and the prices on consumer behaviour of packaged halal-labeled snack, either partially or simultaneously. The effect was determined using a multiple linear regression analysis. Data were collected through compiled structured questionnaires based on certain indicators addressed to 100 respondents. The sampling technique used in this study was a convenience sampling technique, where the sample was selected from members of the population willing to become respondents. The choice of location was determined intentionally (purposive). Attitude scale used was Likert scale, and scale variable used was interval scale. The results showed that the consumer learning level on a basic concept of halal contained in a halal label was very high. This was proven with the results of the interpretation of a score interval, i.e. 88.12%. Consumer behaviour towards snacks in packaging labeled halal simultaneously was influenced by learning, attitudes, subjective norms, perceived behavioural control, and price, while attitude and price influenced partially.
Analysis of The Growth of Oil Palm (Elaeis guineensis Jacq.) Exposed by Aluminum Toxicity and Silica as an Amelioration Satiti Ratnasari; Eka Tarwaca Susila Putra; Didik Indradewa
Jurnal Ilmu Pertanian Vol 2, No 1 (2017): 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.11194

Abstract

Aluminum (Al) contained in acidic soil could become an obstacle for plant growth. The Al toxicity could inhibit root growth, water and nutrient absorption. One of the solution to overcome Al toxicity was by applying Silica (Si). The aim of this research was to study the impacts of Al to the growth activity of oil palm and to know the effects of Si to the growth activity of oil palm contaminated by Al. The factorial treatments were arranged in a complete random design with two factors. The first factor was Al toxicity, i.e. with and without Al, while the second factor was the application of Si that consisted of four levels (0, 32, 64, 96 gram per plant). some of variables included leaf area ratio (LAR), leaf area, net assimilation rate (NAR), relative growth ratio (RGR), plant height, and plant dry weight were observed. The result showed that Al toxicity decreased the LAR, leaf area, NAR, RGR, plant height, and plant dry weight. The application of Si 32 gram per plant increased leaf area ratio and was not significantly different from the application of 96 gram Si per plant. However, the application of Si to oil palm contaminated with Al did not affect to relative grow rate, but its application to normal plant would increase the relative growth ratio.
The Export Strategy of PT. Dagsap Endura Eatore Yogyakarta for Entering Asean International Market Khusaini Wijayanto; Dwidjono Hadi Darwanto; Lestari Rahayu Waluyati
Jurnal Ilmu Pertanian Vol 1, No 3 (2016): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.11217

Abstract

This study aimed to determine the position of PT. Dagsap Endura Eatore Yogyakarta and to formulate the export strategy to enter the international market of ASEAN. The primary and secondary data were used in this study. The SWOT analysis, consisted of four indicators i.e strengths, weakness, opportunities, and threats, was used for analysis data. The results showed that the total of weighting score for force factor of PT. Dagsap Endura Yogyakarta Eatore was 4.45; the vulnerability factor was 4.07; odds factor was 4.70; and threats factor was 4.11. The current PT. Dagsap Endura Eatore Yogyakarta is in quadrant 1 (one) SWOT matrix that supports an aggressive growth policy (Growth Oriented Strategy). Export strategy for PT. Dagsap Endura Eatore Yogyakarta should use the power, so that it can seize the export opportunities to enter the international market of ASEAN.
Consumer Willingness to Pay of Organic Rice and The Factors which Affected in Pontianak Heru Setiyadi; Slamet Hartono; Dwidjono Hadi Darwanto
Jurnal Ilmu Pertanian Vol 1, No 3 (2016): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.11227

Abstract

Organic rice is claimed as one of staples food alternative choice. Consuming organic rice is not only about fulfilling the quality needs but also a part of life style. Organic rice is also available in many modern retails in Pontianak so that it is affordable enough to be consumed by Pontianak’s residents. The aims of study were to analyze Willingness To Pay (WTP) of consumers with Contingent Valuation Method (CVM) and find factors affected consumers WTP value of organic rice . Primary data were collected during March to April 2016 and analyzed by multiple regression. The samples of Pontianak’s residents were used as respondents. The result showed that willingness to pay rate of organic rice in Pontianak was low. The age, price of organic rice, ergonomic packaging, respondent expenditure in month, and non-organic rice price affected WTP  with marked positive, while marital status factor had negative marked.
Root Morphology of Eight Hybrid Oil Palms Under Iron (Fe) Toxicity Aprilia Ike Nurmalasari; Eka Tarwaca Susila Putra; Prapto Yudono
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): 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.11254

Abstract

The research aims to study the change of morphology root characters of eight hybrid oil palms under iron toxicity (Fe). Field experiment done in arranged in a Randomized Complete Block Design (RCBD) two factors and three blocks as replications. The first factor was Fe concentration. It consists of two levels which are concentration 0µ.g-1 and concentration 600 µg.g-1 Fe. The second factor is the hybrid of oil palms which consists of eight hybrid oil palms as Yangambi, Avros, Langkat, PPKS 239, Simalungun, PPKS 718, PPKS 540 and Dumpy. Fe was applied by pouring FeSO4 solvent for 600 µg.g-1 500 ml.-1plant.-1day-1 on two months of plants after transplanting in the main nursery. Data were collected on root morphology and plant dry weight The data were analysis of variance (ANOVA) at 5% significanly, followed by Duncan's multiple range test (DMRT). The relationships by among variables were determined by correlation analysis. The results showed that Fe concentration 600 µg.g-1 inhibits relatively root growth rate, narrows surface area, reduces the diameter, and shrinks root volume of all hybrid oil palms tested. The slowing relatively root growth rate, narrowing of root surface area and root diameter also root volume shrinkage due to Fe stress. It was also shown that the dry weight of plants was inhibit by existing of Fe toxicity.
Effect of The Substitution of Compound Fertilizer With Single Fertilizer and Mycorrhizal Inoculation on The Growth and Yield of Soybean Among Eucalyptus Apresus Sinaga; Didik Indradewa; Priyono Suryanto
Jurnal Ilmu Pertanian Vol 1, No 2 (2016): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.11341

Abstract

The efforts to improve the productivity of soybean can be done through technological innovation by the provision of chemical fertilizers and mycorrhizae. This study were aimed to obtain information on the effect of a single fertilizer, which can provide the same or higher level of soybean crops if compared with those compound fertilizers, as well as to find out the effect of mycorrhizae to the improvement of efficiency in the use of inorganic fertilizers. It is expected that the mycorrhizae inoculation can reduce single fertilizer’s dose to the level equivalent to the compound fertilizer given by farmers. The study was conducted in Bleberan Village, Playen Subdistrict, Gunung Kidul Regency, Yogyakarta from February to May 2015. It was conducted by using a two-factors factorial design arranged in a randomized block design with three replications. The first factor was inorganic fertilizer (N, P2O5 and K2O), consisting of 5 levels, i.e. without fertilizer (0-0-0 kg/ ha), Phonska fertilizer (45-45-45 kg/ha), single fertilizer (45 -45-45 kg/ha), a low single fertilizer (23-36-30 kg/ha) and high single fertilizer (23-108-90 kg/ha). The second factor was mycorrhizal inoculation, consisting of three levels, i.e. without mycorrhizae (0 g), medium dose (2.5 g) and high dose (5 g). Data were analyzed using Analysis of Variance (ANOVA) at a significance level of 5%. If there was a significant difference, analysis was followed by Duncan Multiple Range Test with a significance level of 5%. The relationship between variables observed was examined by a correlation analysis. The results showed that there was no interaction between inorganic fertilizer and mycorrhizal application. The dose of single fertilizer which was equivalent to the dose of compound fertilizer given to soybean could increase crops by 1.37 t/ha compared with plants treated with a compound fertilizer 1.13 t/ha. The results of correlation analysis among parameters showed that there were correlations between the grain crops and height (r = 0.506**), stem diameter (r = 0.303*), and the number of pods per plant (r = 0.313*).
The development of smart screening technology kit (SST-Kit) for sorting cassava cultivars based on cyanide analysis Luluil Maknun; Noerma Juli Azhari; Mike Nur Izzati; Rizal Nur Huda; Abdul Malik Bahrudin; Erliana Ginting; Hermin Sulistyarti
Jurnal Ilmu Pertanian Vol 5, No 1 (2020): 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.11512

Abstract

Cyanides are deadly toxic substances commonly found in cassava root tuber. Higher content of cyanides causes bitter taste of the root tuber. Therefore, analysis of cyanide content has been used as one of criteria for bitterness in cassava. The substitute common method used for this purpose was organoleptic test that could lead to poisoning, or argentometry, which is complicated, time-consuming, and requires lots of reagents. Therefore, a fast, easy, and safe method is strongly demanded. In this work, a smart screening technology kit (SST-Kit) was developed using ninhydrin reagent. This simple, fast, and low-cost method can be applied in the field for the analysis of cyanide levels in cassava. This method was optimized to the concentration of sodium carbonate from 0.5 to 2.0% by measuring the red color intensity produced under various times of reading from 1 to 3 minutes and three sample preparation techniques. The optimum condition for SST-Kit to read the cyanides level was achieved under the condition of 0.5% of sodium carbonate with a time readout of 2 minutes, using grinding preparation technique followed by dilution. The SST-kit had been applied on cassava samples with the accuracy of more than 90%.

Page 8 of 54 | Total Record : 539

 6   7   8   9   10 

Filter by Year

1969 2025


Reset
Filter By Issues
All Issue Vol 10, No 3 (2025): December Vol 10, No 2 (2025): August Vol 10, No 1 (2025): April Vol 9, No 3 (2024): December Vol 9, No 2 (2024): August Vol 9, No 1 (2024): April Vol 8, No 3 (2023): December Vol 8, No 2 (2023): August Vol 8, No 1 (2023): April Vol 7, No 3 (2022): December (In Press) Vol 7, No 3 (2022): December Vol 7, No 2 (2022): August Vol 7, No 1 (2022): April Vol 6, No 3 (2021): December Vol 6, No 2 (2021): August Vol 6, No 1 (2021): April Vol 5, No 3 (2020): December Vol 5, No 2 (2020): August Vol 5, No 1 (2020): April Vol 4, No 3 (2019): December Vol 4, No 2 (2019): August Vol 4, No 1 (2019): April Vol 3, No 3 (2018): December Vol 3, No 2 (2018): August Vol 3, No 1 (2018): April Vol 2, No 3 (2017): December Vol 2, No 2 (2017): August Vol 2, No 1 (2017): April Vol 1, No 3 (2016): December Vol 1, No 2 (2016): August Vol 1, No 1 (2016): April Vol 18, No 3 (2015): December Vol 18, No 2 (2015): August Vol 18, No 1 (2015): April Vol 17, No 1 (2014): Juni Vol 16, No 2 (2013): Desember Vol 16, No 1 (2013): Juni Vol 15, No 2 (2012): Desember Vol 15, No 1 (2008): Juni Vol 14, No 2 (2007): Desember Vol 14, No 1 (2007): Juni Vol 13, No 2 (2006): September Vol 13, No 1 (2006): Maret Vol 12, No 2 (2005): Desember Vol 12, No 1 (2005): Juni Vol 11, No 2 (2004): Desember Vol 11, No 1 (2004): Juni Vol 10, No 2 (2003): Desember Vol 10, No 1 (2003): Juni Vol 9, No 2 (2002): November Vol 9, No 1 (2002): Juni Vol 8, No 2 (2001): November Vol 8, No 1 (2001): Juni Vol 7, No 2 (2000): November Vol 7, No 1 (2000): Juli Vol 6, No 2 (1998): September Vol 5, No 4 (1994): September Vol 5, No 3 (1993): September Vol 5, No 2 (1992): September Vol 5, No 1 (1992): April Vol 4, No 8 (1992): Februari Vol 4, No 7 (1991): September Vol 4, No 6 (1991): Juli Vol 4, No 5 (1989): Februari Vol 4, No 4 (1987): Februari Vol 4, No 3 (1986): Juli Vol 4, No 2 (1986): April Vol 4, No 1 (1986): Februari Vol 3, No 8 (1984): Juli Vol 3, No 7 (1984): April Vol 3, No 6 (1984): Februari Vol 3, No 5 (1982): Desember Vol 3, No 4 (1981): Desember Vol 3, No 3 (1981): Oktober Vol 3, No 2 (1981): Agustus Vol 3, No 1 (1981): Juni Vol 2, No 8 (1980): Oktober Vol 2, No 7 (1980): Juni Vol 2, No 6 (1979): Mei Vol 2, No 5 (1978): Desember Vol 2, No 4 (1978): Juli Vol 2, No 3 (1977): Desember Vol 2, No 2 (1977): Juni Vol 2, No 1 (1976): Desember Vol 1, No 8 (1976): Desember Vol 1, No 7 (1973): Mei Vol 1, No 6 (1972): Juni Vol 1, No 5 (1970): Juni Vol 1, No 1-2 (1969): Agustus-Desember Vol 1, No 4 (1969): Desember Vol 1, No 3 (1969): Mei More Issue