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INDONESIA
Gontor AGROTECH Science Journal
Published by Universitas Darussalam Gontor
ISSN : 2460495X     EISSN : 24775800     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Gontor AGROTECH Science Journal (GASJ) is a sciencetific journal published biannual (june and december), covered but not limited issues in agronomy, integrated farming, sutainable agriculture, plant cultivation, soil science, plant protection, pest and diseases. GASJ published research article, short notes, review papers or review concept in above mentioned subjects
Arjuna Subject : -
Articles 155 Documents
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Selection of Endophytic Bacteria from Root of Okra (Abelmoschus esculantus) as a Biocontrol of Fusarium oxysporum Evan Purnama Ramdan; Ely Lailatul Maghfiroh; Reni Rinika; Abdul Munif
Gontor AGROTECH Science Journal Vol 7, No 1 (2021): June 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i1.4545

Abstract

Okra has become one of the most important vegetables in Indonesia, in which its production need to be increased. One limiting factor is the attack ofsoil-borne pathogens that are difficult to control. Therefore, new alternative controls need to be assessed. In this research, several endophytic bacteria wereisolated and tested for their potency as control of Fusarium oxysporum. Isolation of endophytic bacteria was derived from roots of okra plants which were then characterized by morphospecies and tested for their safety by haemolysis and hypersensitivity tests. A dual culture test was performed to obtain endophytic bacteria that have potential as biocontrol agents by observing formation of inhibitory zones. In addition, inhibitory properties of endophytic bacteria were also calculated. The results showed that nine isolates of endophytic bacteria were obtained from okra roots. Selection by haemolysis and hypersensitivity tests showed that there were three isolates that were biologically safe. In further testing, one of the three obtained isolates (AOB3) was considered the best in inhibit F. oxysporum growth with an efficacy of 19.3%, and form an inhibitory zone as a characteristic of antibiotic mechanism.
Harvest Time has an Effect to the Quality of Red Dragon Fruits (Hylocereus polyrhizus (Weber) Britton & Rose) during Storage Rosmaiti Rosmaiti
Gontor AGROTECH Science Journal Vol 7, No 1 (2021): June 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i1.5201

Abstract

TThe aim of this research is to know the influence of harvest time variety against the quality of red dragon fruits (Hylocereus polyrhizus (Weber) Britton & Rose) during storage. This research utilizes Complete Random Design (CRD) non factorial with three repetitious. The observed factor is harvest time factor of red dragon fruits (Hylocereus polyrhizus (Weber) Britton & Rose) which comprises of 30 HSA, 32 HSA, 34 HSA, 36 HSA and 38 HSA. The obtained data is analyzed by style examination analysis (ANOVA). If the treatment tangible impact so that it is continued by BNJ 0,05 test. The observed parameters are: fringe color and fruit skin, fruit succulence, fruit substance and fruit quality decrease. The research results indicate that after harvested, fringe color and the skin of red dragon fruits (Hylocereus polyrhizus (Weber) Britton & Rose) on all harvest time have hue color 5GY. As for value mark and chroma, after harvested and saved is different. The succulence of red dragon fruits (Hylocereus polyrhizus (Weber) Britton & Rose) harvest time 30 HSA is more succulent in comparison to the other harvest time after saved for 6 days. Harvest time 32 HSA has the highest fruit hardness level compared to other harvest times. The highest fruit weight loss was obtained at the 38 HSA harvesting age treatment. The color and taste of dragon fruit that the panelists liked the most was the harvest age of 32 HSA with the respective percentages of 46.67% and 53.33%.
Bamboo Shoot Extract as a Natural Plant Regulator Growth (PGR) Able to Increase Sugarcane Seedling (Saccharum officinarum L.) Growth Fitria Nugraheni Sukmawati
Gontor AGROTECH Science Journal Vol 7, No 1 (2021): June 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i1.5228

Abstract

Sugarcane (Saccharum officinarum L.) is a plant that propagated by vegetative, one of which is the budset system. This propagation is mostly done by farmers, but they have stocks in ordering the roots. One of the efforts to accelerate the formation of these roots can be done by using a Plant Regulator Growth (PGR). PGR from synthetic materials is widely sold in the market, but there are also natural ingredients that can function as PGR, one of which is bamboo shoot extract. This research was to know the effect of bamboo shoot extract concentration as a natural PGR on the growth of sugarcane (Saccharum officinarum L.). The experiments was conducted at the LPP Yogyakarta Polytechnic practical garden, Wedomartani, Sleman, Yogyakarta. This experiment was laid on non factorial Randomized Complete Block Design consisting of 5 treatments which is the concentration of bamboo shoot extract with a ratio of 2:1, 4:1, 6:1, 8:1 (bamboo shoot extract : water), and Control. The results showed that bamboo shoot extract with a concentration of 4:1 is the best treatment. That treatment (4:1) was produce the higher plants, number of leaves, number of tillers, stem diameter, root length, and root wet weight were better than other treatments.
Testing the Effectiveness of Azotobacter Bacteria and Organic Materials on the Growth, Production, Assembly of Plant N and Soil N Availability in Kailan Plants (Brassica Oleraceae) Alki Satrio Plapito; Aisyah Aisyah; Paranita Asnur
Gontor AGROTECH Science Journal Vol 7, No 1 (2021): June 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i1.5731

Abstract

The attractiveness of organic agriculture, has high economic and social value, low production of organic kailan horticultural commodities causes market demand not to be fulfilled. Efforts that can be applied and applied to support the growth and development of kailan plants are the use of the Bacteria Azotobacter sp. This study aims to determine the effect of the inoculation of the Azotobacter sp. The administration of organic matter and the interaction between the inoculation of Azotobacter. sp and the provision of organic matter on the growth, production and uptake of plant N and soil N availability in kailan plants. The design used in this study was a 2-factor factorial Completely Randomized Design (CRD). The first factor was the isolation of Azotobacter sp consisting of 3 levels, namely, a dose of 0 ml, 10 ml and 20 ml. The second factor is the provision of organic material in the form of goat manure which consists of 2 levels, namely, without giving organic material and giving 100 gr of organic material. From the results of data analysis, it was found that the inoculation of bacteria had an Azotobacter sp effect on the growth and production and uptake of plant N in kailan plants, it could be seen in the parameters of plant height, number of leaves, stem diameter, leaf area, shoot wet weight, and plant N uptake. Organic matter affects the growth and production as well as plant N uptake and soil N availability in kailan plants, this can be seen in the parameters of plant height, number of leaves, stem diameter, leaf area, crown weight, shoot dry weight, plant N uptake and availability. N land. The interaction between Bacterial inoculation Azotobacter sp. and organic matter affects plant growth and production, including plant height, leaf area and plant N uptake.
Analysis of the Movement of Rice Field Rats (Rattus argentiventer) Using the Linear Trap Barrier System Hamdan Maruli Siregar; Swastiko Priyambodo; Dadan Hindayana
Gontor AGROTECH Science Journal Vol 7, No 2 (2021): December 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i2.6208

Abstract

Linear Trap Barrier System (LTBS) is an innovative control technology developed using a trap system to control the movement of rice field rats. This study aims to determine the catch pattern and catch direction of rice field rats in several phases of rice plant growth. The experiment carried out was the installation of 6 LTBS units in 2 types of rice field rats habitat, i.e., village border and irrigation embankments. LTBS was installed in 3 phases of rice plant growth, i.e., vegetative, early generative, and late generative. The results showed that the installation of LTBS in both habitats had the same catch pattern, i.e., the highest percentage of rat catch occurred in the early generative phase. Likewise, the direction of rat catch in each phase of rice growth also showed the same pattern, i.e., the number of rats caught in the entry trap was relatively the same as the number of rats caught in the exit trap.
Effect of The Type Impermeable Storage Container on The Quality of Rice Seeds Hairu Suparto; Riza Adrianoor Saputra; Novitriani Saragih
Gontor AGROTECH Science Journal Vol 7, No 2 (2021): December 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i2.6524

Abstract

Rice as a food source that provides carbohydrates for the people of Indonesia, especially South Kalimantan, needs to be increased in production so that the community's needs can be met. The quality of seeds will determine the productivity and quality of seeds. Storage treatment is one way that can be done to maintain seeds until the seeds are planted, but storage treatment that is too long will cause seed deterioration or seed viability to decrease. The decline in seed quality caused by keeping in open spaces storage causes fluctuations in temperature and humidity due to direct interaction with the environment. Efforts to control factors that can affect the rate of seed deterioration can be executed, among others, by using an impermeable storage container. Impermeable storage containers do not support the exchange of air from the environment to the inside of the storage container. The purpose of this study was to determine which type of impermeable storage container is best for the quality of rice seeds. The research has been at the Laboratory of Center for Supervision and Certification of Food Crops and Horticulture Seeds, South Kalimantan Province, Banjarbaru City and used a one-factor CRD with w0 (+) (cans), w0 (-) (plastic sack), w1 (glass jars), w2 (plastic jars) and w3 (aluminum foil). The results of the study indicated that the use of impermeable storage containers had a significant effect on moisture content, germination, and maximum growth potential of rice seeds. The use of the best impermeable storage container for the moisture content of rice seeds in the storage period of 45 days after storage (das) was found in the w3 treatment (aluminum foil) of 11.63%, while the parameter of germination in the 15 das was 63.83%, the maximum growth potential in the storage period of 45 and 90 das was found in the w1 treatment (glass jar) of 73.50% and w0 (+) (cans) of 70.69%.
Inbreeding Depression Test in Phenotypic Characters of Maize Plants from Selfing and Open Pollinated fitri ekawati; Doni Hariandi; Irfan Suliansyah
Gontor AGROTECH Science Journal Vol 7, No 2 (2021): December 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i2.5167

Abstract

The initial step in the assembly of hybrid maize is the formation of inbred lines. This research aims to see the differences in phenotypic characters and to determine the percentage of inbreeding depression between selfing and open-pollinated plant populations. Research activities have been carried out in the cornfield of Nagari Sitiung, Sitiung District, Dharmasraya Regency, West Sumatra. The materials used were F2 maize selected from a cross between BSM0729S3 and BAP27799 and maize S4 from BSM0729S3 (female parent). The research was conducted using a T-test, namely open-pollinated (T1) and selfing (T2). After the T-test was performed, the percentage of inbreeding depression was calculated for each observation variable. The results showed that the open-pollinated treatment was significantly different from the selfing treatment on the variables of plant height, ear height, anthesis time, silking time, harvesting age, ear weight per plant, length and diameter of the ear, kernel row number, and intensity of anthocyanin staining on hair, tassels, and roots. The magnitude of the decrease in vigor in the open-pollinated treatment was smaller than the selfing treatment on all observed variables except for the anthocyanin intensity variable in tassel and roots. Therefore, it is necessary to do further selfing on the S4 population to obtain uniform pure lines and mass selection on the F2 population to produce a uniform maize population.
Effect of Liquid Media Formulations in the Growth of Biological Agents Derived from Trichoderma sp. and Gliocladium sp. and Their Potential in Controlling Alternaria sp. Leaf Spot on Apple Unun - Triasih
Gontor AGROTECH Science Journal Vol 7, No 2 (2021): December 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i2.5961

Abstract

Several types of antagonistic fungi that are used as biological agents to control plant diseases include Trichoderma sp. and Gliocladium sp. But in its growth, it requires alternative media that are easy and cheap to obtain, one of which is the use of rice washing water and coconut water. The purpose of this study was to determine the potential of liquid media for washing rice water and coconut water on the growth of Trichoderma sp. and Gliocladium sp. The test results showed that the conidia density of the fungus Trichoderma sp. Ranged from 2,53 to 9,19 times that of the control, Gliocladium sp. 1,35 – 3,73 times as much. The pH of acidic media can produce the highest wet weight and dry weight  at P5, namely Trichoderma sp. 10.67 grams of wet weight and 0,26 grams at pH 5,01. Gliocladium sp. Has the highest wet weight at P5, namely 24,25 grams and 2,73 grams dry weight. Antagonist test against Alternaria sp. best to use Trichoderma sp. 79,39%. The conclusion of this test is the fungus Trichoderma sp. and Gliocladium sp. can grow in all media compositions except in P0 treatment (control) because mycelia cannot grow in sterile water and has the ability to inhibit the growth of Alternaria sp. 
Use of Bacillus firmus E65-Talc Based Formulation for The Management of Bacterial Leaf Blight Disease yadi - suryadi; Dwi Ningsih susilowati; I Made - Samudra
Gontor AGROTECH Science Journal Vol 7, No 2 (2021): December 2021
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v7i2.5993

Abstract

It has long been known that bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo), is major bacterial diseases which occured widespread in rice growing countries. This study was performed to determine effect of biological control using endophyte bacteria formulated in talc-based powder against Xoo in rice agroecosystem which grown under organic system of rice intensification (SRI) in Cianjur-West Java. Carriers formulation of talc-based powder was prepared to contain endophytic bacteria of Bacillus firmus (isolate E65) which was previously isolated from the rice field. BLB disease suppression was ranged 2.14% to 97.15%. among cultivars tested, with the average BLB severity among six cultivars was 9.79%. The cv. Inpari 10 (Moderate) showed the lowest disease severity compared with that of resistance cv. Sintanur, Mekongga and Code. This suggests that the biocontrol efficacy of formulation B. firmus E65-talc-based powder was not affected by cultivar susceptibility. The antagonistic bacteria formulation yields up to 9%. The highest yields for each respective treatment treated with talc based-bacterial formulation were obtained using cv. Inpari 10 and Cisantana. The scale-up of biocontrol products that prolongs biocontrol activity may challenged with shelf life of formulation. This study showed advantages of single cultures of bacterial antagonist used in a talc-based formulation is possible to suppress BLB disease and promotes rice yield under SRI field condition.  
Industri Pertanian Organik Yudi Anto
Gontor AGROTECH Science Journal Vol 2, No 1 (2015): December 2015
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v2i1.7201

Abstract

Untuk mulai mengklasifikasikan pertanian modern, perlu untuk menganalisis dua kategori utama sistem pertanian yang telah berkembang di masyarakat: industri dan organik.Kata "industri" pertanian berasal dari Revolusi Hijau, yang melanda dunia pada pertengahan abad kedua puluh. Perkembangan teknologi pertanian selama periode ini menghasilkan tanaman yang lebih kuat dan tahan penyakit. Tren tanaman pertanian rekayasa genetika dimulai dengan revolusi ini. Apa yang dimulai sebagai kesuksesan kecil yang berpusat di Meksiko, asal mula "revolusi hijau", dengan cepat menyebar ke seluruh dunia. Dalam masyarakat saat ini, kata "industri" pertanian mengacu pada penggunaan modifikasi genetik dan pupuk sintetis dalam hubungannya dengan teknik pertanian tradisional (Briney, 2010).Ungkapan pertanian "organik" mengacu pada spesies yang telah dibudidayakan tanpa menggunakan bantuan sintetis apa pun, seperti manipulasi genetik atau aplikasi pupuk dan pestisida sintetis.Pertanian organik didefinisikan sebagai "praktik pertanian yang agroekologis, berkelanjutan, atau ekologis; memanfaatkan proses siklus nutrisi alami (non-sintetik); tidak termasuk atau jarang menggunakan pestisida sintetis; dan mempertahankan atau memulihkan kualitas tanah" (Badgley, 2006). Petani kecil yang tumbuh secara organik untuk memberi makan keluarga dan masyarakat lokal telah mempraktikkan pertanian organik selama beberapa generasi. Secara tradisional, peternakan, peternakan, dan produksi tanaman semuanya merupakan bagian dari siklus yang sama.

Page 10 of 16 | Total Record : 155

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