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Dwi Haryanta
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Wijaya Kusuma Surabaya University, Dukuh Kupang XXV/54 Surabaya
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Kota surabaya,
Jawa timur
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Journal of Applied Plant Technology
Published by Universitas Wijaya Kusuma Surabaya
ISSN : -     EISSN : 29645662     DOI : https://doi.org/10.30742/japt.v1i1
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Journal of Applied Plant Technology (JAPT) is published by the Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University . Journal of Applied Plant Technology (JAPT) is managed professionally as a forum to assist academics, researchers, and practitioners to disseminate the results of research and studies that have been carried out. Journal of Applied Plant Technology (JAPT) is a national journal dedicated to the publication of quality research results in the fields of cultivation and agricultural technology, as well as free of charge in the submission process. Journal of Plant Technology is published twice a year, in November and May. Focus and Scope of Journal of Applied Plant Technology (JAPT): - Agricultural cultivation - Pests and plant diseases - Tissue culture - Soil science - Agricultural Technology - Agricultural Landscape - Urban Farming
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 64 Documents
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Comparative Test of Pesticide Residues in Baby Oranges (Citrus sinensis) in Traditional and Modern Markets of Surabaya City: Uji Perbandingan Residu Pestisida pada Jeruk Baby (Citrus sinensis) di Pasar Tradisional dan Modern Kota Surabaya Jihan Akhsania; Dwi Haryanta; Achmadi Susilo
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/8mq8j526

Abstract

The use of pesticides in the cultivation of baby oranges (Citrus sinensis) is intended to control pests and diseases; however, it may leave residues on the fruit that can affect food safety. This study aimed to compare pesticide residue levels in baby oranges marketed in traditional and modern markets in Surabaya City and to assess their safety based on the applicable maximum residue limits (MRLs). The study was conducted in October 2025 using a survey approach and laborator analysis. Orange samples were collected from Keputran Market as a representative of traditional markets and Hokky Fruit Supermarket as a representative of modern markets. Pesticide residue analysis was performed using gas chromatography–mass spectrometry (GC–MS) to detect the active ingredients chlorpyrifos and profenofos. The results showed that chlorpyrifos residues, both methyl and ethyl forms, were not detected in any of the baby orange samples. Profenofos residues were detected in several samples; however, their levels were below the maximum residue limits specified in SNI 7313:2008. Overall, baby oranges marketed in both traditional and modern markets in Surabaya City are considered safe for consumption. Nevertheless, the presence of low levels of pesticide residues indicates the need for prudent pesticide use and continuous monitoring to ensure food safety for consumers.
Hedonic Test of Processed Products from Various Bok Choy (Brassica Rapa L.) Cultivation Techniques: Uji Hedonik Hasil Olahan Berbagai Produk Teknik Budidaya Pakcoy (Brassica rapa L.) Calista Yulianti Putri Aditya; Jajuk Herawati; Indarwati
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/mbswj926

Abstract

Research this study aims to evaluate the level of consumer preference through a hedonic test of processed bok choy (Brassica rapa L.) juice from hydroponic, conventional, and microgreen cultivation. The parameters tested included taste, color, texture, aroma, and physical appearance. The results of statistical analysis (ANOVA) showed that cultivation techniques significantly affected all parameters except color. The microgreen technique was consistently the most preferred treatment by panelists with the highest average scores for taste (3.45), texture (2.84), aroma (3.36), and physical appearance (3.48). This superiority is thought to be related to the more intense concentration of volatile compounds in young plant tissue, while conventional techniques tended to obtain the lowest scores. The study concluded that in terms of organoleptic quality, bok choy with microgreen cultivation techniques had the best level of panelist acceptance.
Contribution of Flora Biodiversity to Reducing Air Pollution Levels in Jambangan Village, Surabaya: Kontribusi Keanekaragaman Hayati Flora terhadap Penurunan Tingkat Pencemaran Udara di Kelurahan Jambangan, Surabaya Putra Ardiansyah; Achmadi Susilo; Indarwati
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/r9jytm38

Abstract

Air pollution is a major environmental problem in urban areas that affects human health and the environment. One natural way to reduce air pollution is through the use of floral biodiversity. This study aims to identify the level of plant diversity, the ecological role of flora in reducing air pollution, and the supporting and limiting factors in Jambangan Sub-district. The research was conducted in RW 02 and RW 03 using a qualitative descriptive method through observation, interviews, and documentation. Data were analyzed using the Shannon–Wiener diversity index, evenness index, and dominance index. The results show that plant diversity in the study area is high, with index values of 2.95 in RW 02 and 2.93 in RW 03. Flora plays an important role in absorbing carbon dioxide, producing oxygen, trapping dust particles, and improving the microclimate. Supporting factors include community participation and the availability of green open spaces, while limiting factors include limited land, high building density, and lack of plant maintenance. Improvement efforts can be made through greening programs, environmental education, proper plant selection, and support from local government policies. 
The Effect of Application Interval and Concentration of Liquid Organic Fertilizer on the Growth and Yield of Eggplant: Pengaruh Interval Waktu dan Konsentrasi POC terhadap Pertumbuhan dan Hasil Tanaman Terung Ungu Selvia Mauradilla Utami; Djarwatiningsih P Soedjarwo; Widi Wurjani
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/ha7b4q06

Abstract

Eggplant (Solanum melongena L.) is a horticultural crop with significant potential for development. The application of liquid organic fertilizer (POC) sprayed on leaves at appropriate intervals and concentrations can be a solution for providing essential nutrients to plants, thereby achieving optimal crop yields. This study aims to evaluate the best combination of application interval and POC concentration in cultivating purple eggplant. The study was designed using a Split-Plot Design. The sub-plots (application intervals) were divided into W1 = every 5 days, W2 = every 10 days, and W3 = every 15 days. The main plots (POC concentrations) were divided into K1 = 4 ml/l, K2 = 6 ml/l, and K3 = 8 ml/l. The results showed that the combination of application intervals and POC concentrations significantly affected the flowering age of the plants. The best combination was found with a 5-day application interval and a POC concentration of 8 ml/l.

Page 7 of 7 | Total Record : 64

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