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Journal of Applied Agricultural Science and Technology

jaast
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Published by Green Engineering Society

ISSN : 26214709 EISSN : 26212528 DOI : https://www.jaast.org/index.php/jaast/article/view

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Journal of Applied Agricultural Science and Technology (JAAST) is an international journal, focuses on applied agricultural science and applied agricultural technology in particular: agricultural mechanization, food sciences, food technology, agricultural information technology, agricultural economics, agricultural statistics, bioinformatics, farm structure, farm power, agricultural machinery, irrigation and drainage, land and water resources engineering, renewable energy, environment, crop production, and crop protection.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman

Articles 157 Documents

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Identification of the Diversity of Indigenous Arbuscular Mycorriza Fungi in the Rhizosphere of Coffee (Coffea Sp) Arabica Solok Radjo West Sumatera Armansyah Armansyah; Eti Farda Husin; Indra Dwipa; Faly Sandika; Reski Marbeni Putra
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Arbuscular mycorrhizal fungi are a group of fungi that can be symbiotic with many types of plants. Soil factors and plant species, affect the diversity of arbuscular mycorrhizal fungi. Likewise, differences in location and rhizosphere cause differences in the diversity of species and populations of AMF. In addition, not all AMF have the same morphological and physiological characteristics, therefore it is very important to know their identity. Coffee is a plant that has economic value and the potential for symbiosis with AMF. This study aimed to identify AMF in the rhizosphere of four varieties of Solok Radjo coffee plants in the Aia Cold area of the Gumanti Valley, Solok, West Sumatra. Meanwhile, the stages of this research include: collecting and collecting data in the field, determining the location of the soil sample, analyzing soil properties in the laboratory, isolating AMF spores, and identifying AMF spores morphologically. The results showed that the diversity of AMF spores was found in 3 genera, namely Glomus sp., Acaulospora sp., and Gigaspora sp. The Kartika coffee variety has a higher AMF spore population than Sigararutang, Andongsari and Gayo.

Comparison of Polyphenol Levels of Callus and Wild Type of Cat's Whiskers Plant ( Orthosiphon aristatus (Blume) Miq.) Purple Varieties Fahrauk Faramayuda; Soraya Riyanti; Ari Sri Widyaswari; Zaini Alfahmi; Sultan Salahudin Jamal; Totik Sri Mariani; Elfahmi Elfahmi; Sukrasno Sukrasno
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

The cat's whiskers plant ( Orthosiphon aristatus (Blume) Miq) that grows in Indonesia has white flowers, purple flowers, and white flowers with purple patterns. The quality of the secondary metabolite content of each cat's whiskers plant is different because it depends on environmental influences such as rainfall or soil mineral content. Plant tissue culture methods such as callus culture or cell culture are used to overcome these obstacles because these methods do not depend on the environment and can produce secondary metabolites such as those produced by the original plant. Cat's whiskers contain the main secondary metabolite compounds: rosmarinic acid, eupatorin, and sinensetin. Rosmarinic acid belongs to the phenolic group, while sinensetin and eupatorin are flavonoids. This study aimed to determine the total levels of polyphenols and flavonoids in purple cat whiskers and determine the ratio of secondary metabolites of cat whiskers callus with wild-type plants—determination of polyphenol content using Folin Ciocalteau reagent. Determining flavonoid levels is based on colorimetry using AlCl 3 reagent, specific for flavone and flavonol compounds. The levels of polyphenols contained in the ethanolic extract of callus and cat whiskers of the purple variety were 16.056 ± 0.204 mgQE/g and 30.780 ± 0.425 mgQE/g, while the polyphenol content of the callus ethyl acetate extract and the purple variety of cat whiskers leaves was 15,489 ± 0.425 mgQE/g and 13,262 ± 0.044 mgQE/g. The levels of flavonoids contained in the ethanol extract of the cat whiskers leaf were 1.39±0.03 mgQE/g and callus 0.16±0.02 mgQE/g in the ethyl acetate extract of the leaves of the cat whiskers 2.16±0.012 mgQE/g and callus 2.24±0.010 mgQE/g. The polyphenols and flavonoids in the callus ethyl acetate extract were more significant than the ethyl acetate extract of the purple variety ( wild type ) cat whiskers leaf.

The Utilization of Dioscorea Tuber in Self-Rising Starch: a Review Mimi Harni; Tuty Anggraini; Rini Rini; Irfan Suliansyah
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Self-rising starch is a development product of self-rising flour. This product minimizes the process, especially in the salt and leavening agent weighing stage, so that it reduces the time in the serving process. Self-rising flour is generally made of wheat flour. Currently, due to some medical considerations, many people cannot consume this product. Based on some research results, gluten compound in wheat flour or wheat triggers for the development of type-1 diabetes. This fact has caused Indonesia to be ranked fifth in the world for the diabetic diseases. Thus, one of the ways to overcome this problem is by utilizing the raw materials originating from Indonesia too, namely tubers. Indonesia has a variety of tubers. Some of these tubers, however, have not been explored. These tubers have not only the function as the good sources of carbohydrates but also the bioactive compounds and more functional values, such as water soluble polysaccharides (WSP), diosgenin, inulin and glycemic index. They increase the functional properties of the starch that are produced. The tubers that currently have not been cultivated are the genus Dioscorea. The various tubers that are included in dioscorea family are uwi, gembili, gadung, tomberoso and jebubuk. All of these tubers are good sources of carbohydrates. Uwi, gembili and gadung are tubers that have been cultivated by the people for many years. On the hand, tomberoso and jebubuk tubers grow wildly in the forest that only become the foods for the wild animals in it. The starch derived from the disccorea tubers can be used as self-rising starch because it has the property as food developer. It contains high carbohydrates and bio-active compound, therefore, it is healthier to consume.

The Effect of Tofu Liquid Waste and Organic Mulch on the Growth of Cocoa (Theobroma Cacao L.) Nursery Plants in a Polybag Ifan Aulia Candra; Eri Samah
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

This study aims to examine the influence of the concentration level of organic tofu liquid waste and rice straw mulch on the growth of cacao (Theobroma cacao L) seedlings. It was carried out using three variables, namely the concentration of tofu liquid waste and four treatment levels. These include treatments without tofu liquid waste 0 ml/kg/plant (T0), and with 60 ml/kg/plant (T1), 80 ml/kg/plant (T2), and 100 ml/kg/plant (T3), respectively. Furthermore, rice straw organic mulch factor with three levels, namely 15 gr/plant (15 tons/ha) (M1), 20 gr/plant (20 tons/ha) (M2), and 25 gr/plant (25 tons/ha) (M3) was also used. The results indicated that the concentration of liquid organic fertilizer derived from tofu liquid waste significantly affected plant height at the age of 3 months. The tallest plant measured 64.78 cm in height, with 21.33 leaves, stem diameter of 0.72, and leaf area of 17.58 cm2. Organic rice straw mulch did not have a significant effect on all plant factors. This showed that the application of liquid organic fertilizer tofu waste influences plant height, leaf number, and stem diameter, and there is no effect on the leaf surface, while rice straw mulch did not alter all plant variables.

The Impact of Using a Mixture of Organic Fertilizers (Compost And Liquid Organic) and Plastic Mulch, on the Development of Cayenne Pepper Plants Albert Tulak; Inrianti Inrianti; Maulidiyah Maulidiyah; Muhammad Nurdin
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Husoak Village, Hubikiak District Jayawijaya is one of the regions in Papua province where plants including chili. The cultivation system are extensively and using traditional method depending on soil nutrients. The aim of the research is to see how utilizing a mix of organic fertilizer and mulch affects the growth and development of chili plants. This research was conducted based on a randomized block design consisting of 4 treatments. namely P1 = compost; P2 = compost + liquid organic fertilizer + plastic mulch; P3 = compost +TiO2+liquid organic fertilizer + plastic mulch; P4= Control (No Treatment). When compared to the control. the results showed that using a mix of organic fertilizer (compost and liquid organic) and mulch had an effect that was not significant. This demonstrates that cayenne pepper plants may still get the nutrients they require from nutrients available in the soil. Fertile land is still classified as cultivated land.

Biology of Tetrastichus brontispae (Ferriere) (Hymenoptera: Eulophidae), the Coconut Leaf Beetle Parasitoid Zahlul Ikhsan; Hidrayani Hidrayani; Yaherwandi Yaherwandi; Aulia Oktavia
Journal of Applied Agricultural Science and Technology Vol. 7 No. 1 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Biological control using parasitoids should be carried out to reduce the population of Brontispa longissima without pesticides. Tetrastichus brontispae is a larva-pupa parasitoid and is a gregarious parasitoid. Many factors can influence the biology of the parasitoid, which consists of biotic and abiotic factors. The existence of a host is one of the biotic factors that influence the life of parasitoids. The aim of the study was to study various biological parameters of the T. brontispae parasitoid which included the shape, size, color and length of each egg, larva, pupa, and imago stages as well as personality, sex ratio and number of hosts parasitized by female T. brontispae imago. The research was carried out in the form of an experiment using a completely randomized design. Experiments for biological observations of female T. brontispae parasitoids consisted of 4 treatments and 10 replications. The period of development, offspring, and sex ratio of the parasitoid Tetrastichus brontispae were studied using young pupa Brontispa longissima as hosts. Maintenance is carried out by inserting the parasitized larvae or pupa into the test tube provided. T. brontispae is a gregarious endoparasitoid. The development period from egg to imago is 18.95 ± 0.75 days. The length of life of the imago was significantly different between females (9.7 ± 0.51 days) and males (4.5 ± 0.52 days)—honey in increasing lifespan and enhancing T. brontispae offspring. The offspring of a female is 17.50 ± 1.08, with a female proportion of 60.12%. Imago T. brontispae fed honey had a longer and higher actual life span than without honey. Apart from the honey feed, the presence of a host can also affect T. brontispae.

Fast Pyrolysis of Biomass with a Concentrated Solar Power: a Review Sri Aulia Novita; Santosa Santosa; Nofialdi Nofialdi; Andasuryani Andasuryani; Ahmad Fudholi; Perdana Putera
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Indonesia's biomass energy potential is estimated at around 49,810 MW and is very adequate for the development go renewable energy. An example of a biomass conversion technique is pyrolysis which converts biomass into bio-oil. The optimum temperature for the pyrolysis process is 300-600 0C. Parameters that affect the pyrolysis process such as pretreatment of the material, moisture content and particle size of the material, the composition of biomass compounds, the effect of temperature, heating rate, gas flow rate, type of pyrolysis, and pyrolysis reactor. This is a thermochemical technique in which biomass waste is converted into solid fuel (char), producer gas (syngas), and liquid (bio-oil) without oxygen in a reactor. This article contains a comprehensive review of biomass conversion techniques to bio-oil using the solar energy-based fast pyrolysis method. Furthermore, the exposure used was based on the publication source, year, origin country, research methodology, and focus area. Most research has been empirical and mainly focused on fast pyrolysis and its influencing factors. There are several studies, information, and research recommendations described in this article.

Selection of an Appropriate Biomass Burner for Drying Maize in a Crossflow Column Dryer Using an Analytic Hierarchy Process George Obeng-Akrofi; Joseph Oppong Akowuah; Dirk E. Maier; Ahmad Addo
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Several post-harvest technologies have been introduced over the past years to help smallholder farmers in sub-Saharan Africa reduce crop losses. However, not all these technologies fit the same application purpose to meet the needs of farmers in different locations. This study, therefore, applied a multi-criteria decision method, the analytical hierarchy process (AHP), to select an appropriate biomass burner based on its technical performance, cost, and design criteria to complete the setup of a low-cost column dryer. With a priority value of 0.69 out of 1.00, the KNUST-ABE Biomass Burner was selected over the AFLASTOP Biomass Burner which had a priority value of 0.31 out of 1.00. Based on the results of this study, the AHP multi-criteria decision method was helpful in the selection of a locally developed biomass burner for a low-cost column drying system.

Effectiveness of Lettuce Seed Encapsulation Containing Trichoderma Sp. in Control of Damping-off Disease Sarah Hikmah Marieska; Sri Wiyatiningsih; Herry Nirwanto
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Utilization of the antagonist fungus Trichoderma sp. in suppressing damping-off disease caused by Rhizoctonia solani can be done in various ways. One of them is through coating the seeds or encapsulation. This study aims to determine the effectiveness of lettuce seeds encapsulation containing Trichoderma sp. in suppressing damping-off disease through storage time of up to 12 weeks. The results showed that the use of talc and kaolin as a material carrier in encapsulation with 1 week of storage had the highest germination rate of 96%, while the lowest germination was at 12 weeks of storage, which was only 0-5%. The use of talc carrier showed a low percentage of infected seedlings, starting from storage time of 0 to 8 weeks. At 8 weeks of storage, the provision of carrier material in the form of talc showed the lowest percentage of infected seedlings, which was 40% on the last day of observation and had the highest value of effectiveness in controlling Rhizoctonia solani damping-off disease, which was 60%. Thus, seed encapsulation using a talc carrier was the most effective in suppressing damping-off disease up to 8 weeks of storage

Growth, Yield, and Fiber Morphology of Kenaf (Hibiscus Cannabinus L.) Varieties Influenced by Different Levels of Npk Fertilizers Rabar Fatah Salih
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Different levels of NPK fertilizer were used to improve the growth, yield, and fiber morphology of two kenaf varieties. Therefore, a field experiment was conducted in the summer season of 2021 at the Grdarasha Field, College of Agricultural Engineering Sciences, Salahaddin University-Erbil. The results revealed that adding NPK at the rate of 100 kg/ha caused improved growth and yield characteristics includes; plant height, stem diameter, leaf number, and total fresh stem yield by almost (3.35 m, 25.88 mm, 250.10, and 246.93 t/ha), respectively. While, the best values of fresh and dry matter of core and bast fibers were recorded when NPK was applied at the proportion of 150 kg/ha which were (98.40, 57.80, 39.73, and 15.13 t/ha), respectively. Morphological properties of the kenaf bast fiber were also improved by adding NPK fertilizer. Both levels of NPK 100 and 150 kg/ha were noted to be the best for enhancing kenaf bast fiber compared to the control treatment. Finally, based on the results could recommend the farmers to use NPK fertilizer as a factor to increase fiber yield and improve its quality.

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Maria Viva Rini

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Jl. Raya Negara Km.7 Tanjung Pati 26271, Kecamatan Harau, Kabupaten Limapuluh Kota, Provinsi Sumatera Barat, Indonesia

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Maria Viva Rini

Contact Email mariavivarini@unila.ac.id

Phone +6281374680225

Journal Mail Official journaljaast@gmail.com

Editorial Address Jl. Raya Negara Km.7 Tanjung Pati 26271, Kecamatan Harau, Kabupaten Limapuluh Kota, Provinsi Sumatera Barat, Indonesia

Location Kab. lima puluh kota, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Maria Viva Rini

Contact Email
mariavivarini@unila.ac.id

Phone
+6281374680225

Journal Mail Official
journaljaast@gmail.com

Editorial Address
Jl. Raya Negara Km.7 Tanjung Pati 26271, Kecamatan Harau, Kabupaten Limapuluh Kota, Provinsi Sumatera Barat, Indonesia

Location
Kab. lima puluh kota,

Sumatera barat

INDONESIA