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Sumatera utara
INDONESIA
Indonesian Journal of Agricultural Research
Published by Universitas Sumatera Utara
ISSN : 26155842     EISSN : 26155842     DOI : -
Core Subject : Economy, Health, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences Veterinary
Indonesian Journal of Agricultural Research (InJAR) is a peer-reviewed quarterly journal published by TALENTA (Universitas Sumatera Utara's Journals Publisher) and managed by Faculty of Agriculture, Universitas Sumatera Utara. It is based on DIKTI accreditation standard and covers all aspects of agricultural researches including Animal Science and Fisheries, Agribusiness, Agrotechnology and Agricultural Technology. All manuscripts are double-blind refereed before acceptance. InJAR is published in March, July, and November.
Arjuna Subject : -
Articles 185 Documents
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Screening and evaluation of maize varieties for resistance to Spodoptera frugiperda Anggria Lestami; Ummi Maysaroh; Rahmatika Alfi; Hafnes Wahyuni
Indonesian Journal of Agricultural Research Vol. 9 No. 1 (2026): InJAR, Vol. 9, No. 1, March 2026
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v9i1.20567

Abstract

Maize is one of the staple food crops in the world, but the entry of Spodoptera frugiperda pests has reduced national maize production. Most farmers control these pests by using pesticides that cause harm to human health and the environment, so that other environmentally friendly control alternatives are needed, namely the use of resistant varieties. This study aims to obtain maize varieties that are resistant to Spodoptera frugiperda attacks. This study used a one-factor Randomized Block Design (RBD), namely maize varieties, consisting of five varieties, namely: Bisi 2, Bisi 18, Pertiwi 3, Pioneer 32, and NK 212. Each variety was repeated five times. Based on the results of observations of vegetative and generative growth parameters, it was obtained that the NK 212 variety had the best growth and production compared to other varieties. Meanwhile, the results of observations of Spodoptera frugiperda attacks showed that Pioneer 32 was a resistant variety with the lowest attack intensity. Although the NK 212 variety showed the best growth and yield, the Pioneer 32 variety proved to be more resistant to pest attacks. Therefore, variety selection must consider the balance between pest resistance and potential production results.
Effect of selected mycorrhizal strains and six soil series on phosphorus availability in South-Western Nigeria Adebimpe Adebukola Aboderin; Gbade Oyewumi Oyediran
Indonesian Journal of Agricultural Research Vol. 9 No. 1 (2026): InJAR, Vol. 9, No. 1, March 2026
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v9i1.20180

Abstract

The availability of soil phosphorus is a major constraint to crop production. This could be ameliorated by mycorrhizal inoculation. This study assessed the effect of selected mycorrhizal strains and soil series on phosphorus availability in South-Western Nigeria. The study was conducted at the Teaching and Research Farm, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria. The two factors tested in the pot trials were four treatment levels, including: no mycorrhizal inoculation (control), and inoculation with Glomus mosseae, Glomus clarum, and Glomus fasculatum, respectively, and six soil series (Iwo, Apomu, Itagunmodi, Araromi, Egbeda, and Gambari series) collected from different locations in South-Western Nigeria. The experimental design was factorial, arranged in a randomized complete block design with three replications. Phosphorus (P) uptake was determined from the plant after harvesting. Root infectivity was determined by the grid line intersects method. Data were analyzed using SAS at P ≤ 0.05, and means were separated using the Least Significant Difference. Results showed that the Apomu series with Glomus fasculatum produced the highest mycorrhizal infectivity (57.42%). The highest P uptake of 5.33 g/plant was obtained from the Iwo series with Glomus fasculatum.
Study of paclobutrazol application time and different varieties on the growth and production of cucumber plants (Cucumis sativus L.) Amin Wahyudi Pane; Nini Rahmawati; Luthfi Aziz Mahmud Siregar
Indonesian Journal of Agricultural Research Vol. 9 No. 1 (2026): InJAR, Vol. 9, No. 1, March 2026
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v9i1.20770

Abstract

The decline in cucumber production is mainly due to inefficient cultivation therefore, plant growth regulators and superior varieties are needed to increase productivity. This study aimed to evaluate the effect of paclobutrazol application time and superior cucumber varieties on plant growth and yield. The research was conducted from August to October 2024 at Jalan Galang, Pagar Merbau III Village, Lubuk Pakam District, and at the Biotechnology Laboratory, Faculty of Agriculture, University of North Sumatra. The experiment used a randomized block design with two factors: paclobutrazol application time (7, 14, 21, and 28 DAT) and cucumber varieties (Monas F1, Komanda F1, and Zatavy F1), with three replications. Data were analyzed using ANOVA followed by Duncan’s Multiple Range Test at the 5% level. The observed variables included plant height, number of leaves, number of female flowers, male-to-female flower ratio, number of fruits, fruit length, fruit diameter, and fruit weight. The results showed that plants without paclobutrazol showed higher plant height and leaf number, whereas paclobutrazol application at 21 DAT improved yield components, including number of fruits, fruit length, fruit diameter, and fruit weight. Zatavy F1 showed the best growth performance, with an average plant height of 194.67 cm, 76.27 leaves, and fruit weight of 4,149.93 g per plant. Monas F1 produced earlier female flowers, shorter harvest age, and larger fruit size, averaging 14.60 fruits per plant, fruit length 34.53 cm, and fruit diameter 71.9 mm. No significant interaction was observed between the application time of paclobutrazol and variety.
Analysis of biochemical and bioactive content of red rice cv Sidikalang through gamma ray irradiation induction (M4) Lumbanraja, Parlindungan; Naibaho, Dunan; Sumihar, Susana Tabah Trina; Siahaan, Ferlist Rio
Indonesian Journal of Agricultural Research Vol. 9 No. 1 (2026): InJAR, Vol. 9, No. 1, March 2026
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v9i1.21185

Abstract

Red rice derives its characteristic color from anthocyanin pigments located in the pericarp and outer endosperm layers, which contribute to its biochemical and bioactive properties. Gamma-ray irradiation is widely applied as a mutation induction technique to enhance genetic variability and improve functional traits in crop plants. This study aimed to evaluate the biochemical and bioactive content of the red rice cv Sidikalang following gamma-ray irradiation. The experiment was conducted at the Central Laboratory, Faculty of Agriculture, Universitas Sumatera Utara, from October 2024 to February 2025, using a single-factor Randomized Block Design with irradiation doses of 0, 200, 400, and 600 Gy and three replications. Biochemical and bioactive parameters analyzed included carbohydrate, protein, fat, vitamin A, fiber, ash, water content, and anthocyanin. The results showed that gamma-ray irradiation had no significant effect on protein, fat, vitamin A, and carbohydrate content, but significantly affected water content, fiber, ash, and anthocyanin. Irradiation doses of 200-600 Gy resulted in significantly higher fiber and anthocyanin content compared to the control. These findings indicate that gamma-ray irradiation has the potential to enhance specific functional and nutritional traits of red rice, providing valuable insights for mutation breeding programs aimed at developing nutritionally improved rice varieties.
Antifungal activity of papaya leaf extract against Fusarium oxysporum in red chili (Capsicum annuum L.) Desi Sri Pasca Sari; Lita Nasution; Nico Syahputra Sebayang; Asmawati; Dali
Indonesian Journal of Agricultural Research Vol. 9 No. 1 (2026): InJAR, Vol. 9, No. 1, March 2026
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v9i1.20508

Abstract

Chili pepper (Capsicum annuum L.) is a high-value horticultural commodity in Indonesia; however, its production is frequently constrained by Fusarium wilt caused by Fusarium oxysporum, a destructive soil-borne pathogen capable of inducing substantial yield losses. The intensive use of synthetic fungicides for disease management poses environmental risks and may disrupt soil microbial balance, thereby necessitating the development of sustainable and eco-friendly control strategies. This study aimed to assess the antifungal efficacy of papaya (Carica papaya L.) leaf extract against F. oxysporum under in vitro conditions. The experiment was conducted using a Completely Randomized Design (CRD) with five extract concentration treatments and three replications. Antifungal activity was evaluated based on the inhibition of fungal mycelial growth on Potato Dextrose Agar (PDA) medium. The results indicated that papaya leaf extract significantly suppressed the radial growth of F. oxysporum, with inhibitory effects increasing proportionally to extract concentration. Statistical analysis revealed a highly significant effect of treatment concentration on fungal growth inhibition. The highest antifungal activity was observed at a concentration of 8.5 ml, suggesting optimal suppression of mycelial development. These findings demonstrate that papaya leaf extract possesses strong antifungal properties and has considerable potential as a plant-based biocontrol agent for the management of Fusarium wilt in chili pepper cultivation.

Page 19 of 19 | Total Record : 185

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