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All Journal Agrikultura Jurnal Akuatika Indonesia Jurnal Penelitian Pertanian Terapan Jurnal Agroplasma Jurnal Agrisa Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Kiuk, Yosni
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering

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Journal : Jurnal Agroplasma

 1 
Dampak Perbedaan Varietas Terhadap Morfofisiologis Kedelai Tercekam Kekeringan Fahri, Romi; Kiuk, Yosni
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.8086

Abstract

Soybean production in Indonesia has not shown a satisfactory trend, compounded by drought problems that adversely affect plant growth and metabolism. One of the various solutions offered is the use of drought-resistant/tolerant soybean varieties. This study aims to examine how drought-resistant/tolerant varieties differ from drought-susceptible varieties in their morphophysiological response to drought. The study was conducted in a plastic house in Aras Kabu Village, Beringin Subdistrict, Deli Serdang Regency, North Sumatra, using a randomised block design with two factors and three replicates. The first factor was soil moisture conditions, consisting of 80% field capacity (FC) and 40% FC. The second factor was the testing of the Grobogan and Dering varieties. The observation parameters consisted of the number of leaves and leaf K uptake. The results showed that there was a significant interaction between the use of varieties and drought conditions, where the Dering variety significantly reduced the number of leaves, while the Grobogan variety, which is susceptible to drought, increased leaf K uptake to survive. Keywords: soybean, drought, stress, varieties
Identifikasi dan Analisis Vegetasi Gulma Pada Tipe Agro-Ekosistem Sawah di Desa Mata Air, Kabupaten Kupang Fahri, Romi; Banamtuan, Elesta; Kiuk, Yosni; Darsan, Stefany; Panjaitan, Fany Juliarti; Nganggo, Mariano Trivandy Ngasu
JURNAL AGROPLASMA Vol 13, No 1 (2026): Jurnal Agroplasma Vol 13 No 1 Mei 2026
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v13i1.9104

Abstract

The presence of weed vegetation is one of the main limiting factors in increasing the productivity of paddy fields in the semi-arid region of Kupang Regency. This study aims to identify the species composition and analyse the community structure of weeds in the paddy field agro-ecosystem in Mata Air Village using the Summed Dominance Ratio (SDR) parameter. The study was conducted using a quadrat method with 24 sample plots (0.25 m²) laid out randomly. Data were analysed quantitatively to determine Relative Density (RD), Relative Frequency (RF), and SDR. The results identified three main groups of weeds with varying levels of dominance. Sedges were the most dominant group with the highest SDR value (38.74%), driven by a very high individual density in the field (RD 47.85%). Grasses ranked second (SDR 31.64%), followed by broadleaves with an SDR value of 29.62%. Although they had the lowest dominance, broad-leaved weeds exhibited the most even spatial distribution across the study area (FR 38.89%). The combined dominance of sedges and grasses, which exceeded 70%, indicates that competition for nutrients and space at the study site is heavily influenced by monocotyledonous vegetation. These findings suggest the need for the integration of intensive soil management and appropriate water management as part of an Integrated Weed Management (IWM) strategy in Mata Air Village. Keywords: weeds, vegetation analysis, mata air village, paddy fields, SDR
Co-Authors Airtur, Moresi M Alamsyah, Safingi Arsa, IGB Adwita Banamtuan, Elesta Bunga, Widasari Chrisna Adhi Suryono Diah Permata Wijayanti Djou, Nur Tarizha Alifa Sayidinna Dos Santos, Erminia Pereira Duka, Febby Suzanna ISHAQ, LILY Ke Lele, Onesimus Naitkakin, Egidius Nganggo, Mariano Trivandy Ngasu Nguru, Elias St. O. Panjaitan, Fany Juliarti Peters O Bako Pitaloka, Maria Dyah Ayu Pramudya, Herning Romi Fahri Rudhi Pribadi Serangmo, Diana Y. L. Serangmo, Diana YL Sitanggang, Wanri Soares, Daniel Candido Da Costa Soares, Daniel Da Costa STEFANY DARSAN, STEFANY Tri Martini, Desak Ketut Wila, Yeri R.