Article Per Year (5 Year)
p-Index From 2021 - 2026
0.92
P-Index
This Author published in this journals
All Journal Jurnal Biologi Tropis Jurnal Indonesia Sosial Teknologi
Zumani, Darul
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Social Sciences

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Growth and Yield of Cowpea Microgreens (Vigna unguiculata L. Walp) under Different LED Light Intensities and Growing Media Wiliem, Steven De; Zumani, Darul
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9062

Abstract

Cowpea microgreens (Vigna unguiculata L. Walp) are nutrient-rich foods with high nutritional content. The objective of this research was to ascertain how growing medium and 6500K white LED light intensity affected the development and production of cowpea microgreens. This investigation was conducted in January and February of 2025 in Nagarawangi Village, Cihideung Subdistrict, Tasikmalaya City, at a height of 355 meters above sea level.  Using a factorial randomised block design, the research used an experimental approach with two components: two kinds of growth medium (m1 (rockwool) and m2 (vermicompost)) and five degrees of light intensity (i0 (control), i1 (3000 lux), i2 (4000 lux), i3 (5000 lux), and i4 (6000 lux).  Every therapy was carried out three times.   The observational data were analyzed at a significance level of 5% using the Analysis of Variance (ANOVA) and Duncan's Multiple Range Test (DMRT).  The findings indicated that fresh weight and germination speed parameters were influenced by both growth material and light intensity.  Microgreens' height and germination rate were influenced by light intensity and growth medium separately. Based on the results, the treatment of 5000 lux light intensity with rockwool growing media produced the best growth and yield of cowpea microgreens (Vigna unguiculata L. Walp).
Effect of Priming Treatment and Aluminum Stress on Soybean (Glycine max (L.) Merrill) Seeds Viability Hasanatunnisa, Sahla Sania; Zumani, Darul
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9658

Abstract

Soybean (Glycine max (L.) Merrill) is recognized as one of important functional food that contributes significantly to fulfilling the nutritional and dietary needs of the population. However, efforts to increase soybean production are often hindered by problems faced by the plants on suboptimal land, particularly on acidic soils that can induce aluminum stress. Seed priming has been identified as a method to enhance seed quality, as it can improve seed viability and performance under stress conditions. This study aims to determine the interaction effect between priming treatment and aluminum stress on soybean seeds viability. The research was conducted in January 2025 at the Production Laboratory, Faculty of Agriculture, Siliwangi University. This research use a factorial randomized complete block design (RCBD) with three replications. The first factor was seed priming using four different solutions: distilled water, KNO₃, PEG6000, and GA₃. The second factor was aluminum stress using AlCl36H2O consist levels of four concentrations: 0, 121, 242, and 363 ppm. The results showed that interaction effects occurred on germination percentage and vigor index, while no interaction effect on germination speed, radicle length, shoot length, and seedling dry weight. For germination percentage and vigor index parameters, the effects of priming varied depended on the level of aluminum stress. Priming with PEG6000 and GA₃ showed potential in mitigating aluminum stress in soybean and aluminum stress at 242 ppm can still be tolerated by soybean seeds that primed with GA₃.
Viability of Soybean Seeds (Glycine max L Merril) under Seed Coating Treatment with Mangosteen Peel Extract using Different Extraction and Concentration Methods Zumani, Darul; Hakim, Abdul
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6500

Abstract

Soybean seeds during storage experience deterioration marked by a decrease in viability; seed coating is a method that can be used to inhibit this deterioration process during storage. Mangosteen peel is an agricultural waste known to contain antioxidants and is not widely utilized. In this study, soybean seeds coated with mangosteen peel extract using different extraction methods and concentrations, and stored for four months, were tested for viability. The aim is to determine the best extraction method and concentration to inhibit the deterioration rate during seed storage. In this experiment, a split-plot design was used with the extraction methods of maceration and soxhlet as the main plots and concentrations of 0%, 10%, 20%, 30%, 40%, and 50% as the subplots. Data were analyzed using the F Test followed by Duncan's multiple range test. The research results conclude that the extraction method of mangosteen rind and its extract concentration as seed coating materials interactively affect the viability and early growth of soybean seeds. At the same concentration level of mangosteen peel extract, the soxhlet extraction method showed better results compared to the maceration extraction method in inhibiting the deterioration rate of seeds during storage. Seed coating using 40% mangosteen rind extract produced by the soxhlet extraction method was proven to maintain the viability of soybean seeds during storage.
Application of Certified Superior Rice Seed Technology to Increase Organic Rice Production Farmer group in Cipatujah sub-district Permana, Indra; Suryaman, Maman; Amilin, Amir; Zumani, Darul; Mustofa, Romy Faisal
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6695

Abstract

Improving the production of organic rice can be achieved by using certified superior seed varieties. The research aimed to test the adaptability of several superior rice varieties in organic farming systems to obtain varieties suitable for rice growth and yield in the Cipatujah District of Tasikmalaya Regency. A single-factor randomized complete block design was used in this study to test 3 superior varieties, namely Ciherang, Inpari 32, and Mekongga varieties. Each treatment was replicated 20 plots, resulting in a total of 60 experimental plots. The analysis results indicated that the soil at the demonstration plot location met land suitability and rice plant growth requirements with S1 (very suitable) criteria based on parameters such as pH, organic carbon content (C-organic), nutrient content of Nitrogen, Phosphor, and Potassium, bulk density, particle density, porosity, and soil texture. The superior variety treatments had a significant impact on plant height growth, although there were no significant differences observed in terms of tiller number, productive tiller number, grain yield per hill, filled grain per hill, grain weight per hill, and 1000-grain weight. The Ciherang variety showed the highest plant growth response and larger yield components compared to Mekongga and Inpari 32. The use of certified seeds in organic rice cultivation practices was proven to yield higher results compared to seeds from previous cultivation practices.
Potential of Kirinyuh Leaf Extract (Chromolaena odorata L) in Controlling Ajeran Weed (Bidens Pilosa L) and Eleusine Indica L Zumani, Darul; Ayu Wijayanti, Titi
Jurnal Indonesia Sosial Teknologi Vol. 5 No. 12 (2024): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v5i12.8850

Abstract

Kirinyuh (Chromolaena odorata L.) It contains tannins, steroids, phenols, and other compounds that can inhibit the growth of other plants around it, so it can be used as a vegetable herbicide. This study aims to determine the concentration of kirinyuh leaf extract that is effective in controlling ajeran weed (Bidens pilosa L.) and bone grass (Eleusine indica L.) research was conducted in the experimental garden of the Faculty of Agriculture, Siliwangi University. This study uses a group random design (RAK) with 5 replicates. The treatment consisted of 0%, 10%, 20%, 30%, and 40% kirinyuh leaf extract concentrations. The results showed that the concentration treatment of kirinyuh leaf extract was effective in suppressing the growth of ajeran weed (Bidens pilosa L.) and bone grass (Eleusine indica L.)
Co-Authors Abdul Hakim Amilin, Amir Ayu Wijayanti, Titi Hasanatunnisa, Sahla Sania Indra Permana, Indra Maman Suryaman Mustofa, Romy Faisal Wiliem, Steven De