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Haris Setyaningrum
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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
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Articles 5 Documents
 1 
Search results for , issue "Vol 7, No 1 (2021): June 2021" : 5 Documents clear
Characterization of the Bioplastic Cups from Cassava Starch (Manihot esculenta Crantz) with the Addition of Coconut Fiber Powder Andrew Setiawan Rusdianto; Andi Eko Wiyono; Dewanti Eka Diah Permatasari
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.v7i1.5755

Abstract

The accumulation of plastic waste in Indonesia has increased from year to year. This plastic waste is in the form of single-use plastic bags, plastic cups, plastic bottles, plastic straws, styrofoam from restaurants, packaged drinks, snack packaging, and so on. Therefore, efforts are made to synthesize the raw materials for making plastics or polymers that can be properly degraded by soil microorganisms called biodegradable plastics. Starch is a potential raw material for making bioplastics. However, the use of starch as a material for making bioplastics is considered fragile so it needs a natural reinforcement, namely a coconut fiber powder. This study aims to see the effect of adding coconut fiber powder to bioplastic glass. Bioplastic cups are made from cassava starch andglycerol with the addition of coconut fiber powder as a reinforcement. The research methode used a completelyrandomized design using 1 factor, namely the addition of coconut fiber powder with 4 levels of treatment. The results showed that, in testing the solubility of bioplastic glass experienced the greatest weight reduction in treatment P3 with a value of 0.85%, in testing the resistance to hot water, bioplastic glass experienced the greatest weight loss in treatment P0 with the weight loss value at 80 ° C was 0.55 % and at a temperature of 100 ° C of 1.66%, in the biodegredable test, the bioplastic glass experienced the greatest weight loss in treatment P1 with a value of 0.60%.
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.

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