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All Journal JURNAL ILMU PERTANIAN Plumula : Berkala Ilmiah Agroteknologi Jurnal Ilmu-Ilmu Pertanian Indonesia Wahana-Bio: Jurnal Biologi dan Pembelajarannya SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Pertanian Agros Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) JURNAL AGROHITA Jurnal Agronomi Tanaman Tropika (JUATIKA) Agro Bali: Agricultural Journal AGROTEK: Jurnal Ilmiah Ilmu Pertanian Jurnal Pengabdian kepada Masyarakat Nusantara Nusantara Science and Technology Proceedings Journal of Applied Plant Technology Agrocentrum
Djarwatiningsih Pongki Soedjarwo
Agrotechnology Study Program, Faculty Of Agriculture, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya 60294, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Other

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The Effect of Gibberellin (GA3) Concentration on the Growth and Yield of Several Eggplant Varieties (Solanum melongena L.) Efrilia Lukita Sari; Pangesti Nugrahani; Djarwatiningsih
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4741

Abstract

Eggplant (Solanum melongena L.) is an important horticultural crop with high economic value and is widely cultivated in various regions due to increasing demand. This study aimed to determine the effects of gibberellin (GA3) concentration and eggplant varieties on the growth and yield of eggplant (Solanum melongena L.). The research was conducted in Kolomayan Village, Wonodadi District, Blitar Regency, from February to May 2025. A Completely Randomized Design (CRD) with a factorial arrangement of two factors was used. The first factor was gibberellin concentration at 0 ppm, 100 ppm, 200 ppm, and 300 ppm. The second factor was the eggplant variety, including Hitavi, Mustang, Pulus, and Teho 555. Parameters observed included vegetative and generative growth traits. The results showed a significant interaction between 200 ppm GA3 concentration and the Hitavi variety on total harvested fruit weight. The 200 ppm GA3 treatment alone produced the best results across all observed parameters. The Teho 555 variety excelled in plant height and leaf number, while the Hitavi variety outperformed others in flower number, total fruit number per plant, total fruit weight per plant, and fruit set.
Application of Silica Concentration and Planting Methods on the Growth and Yield of TSS Red Onions (Allium ascalonicum L.) Zerlinda Aqila Gitta Maharani; Ida Retno Moeljani; Djarwatiningsih
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4856

Abstract

Shallot propagation using seeds or True Shallot Seed (TSS) faces several challenges, including low seedling survivalrates and slow seedling development. This study aims to evaluate the effects of silica concentration and plantingmethods on optimizing the growth and productivity of TSS shallot bulbs. The research was conducted at the UPTDevelopment of Rice and Secondary Crops Seeds in Malang Regency from February to June 2025. The experimentemployed a factorial design arranged as a Completely Randomized Design (CRD) with two factors, resulting ineight treatment combinations, each replicated five times. The first factor was silica concentration at four levels:0 g/L, 12 g/L, 14 g/L, and 16 g/L. The second factor was the planting method, with two levels: direct plantingand soil-block seeding. Observed parameters included seedling growth percentage, plant height, number ofleaves, number of bulbs, wet weight of stover per clump, dry weight of stover per clump, and dry weight of bulbs.The results indicated no significant interaction between silica concentration and planting method on the growthand yield of TSS shallot bulbs. However, the single treatment at 16 g/L silica concentration (S3) significantlyimproved seedling growth percentage and plant height, whereas the direct planting method (T1) yielded higherplant height. These findings suggest that applying a 16 g/L silica concentration and direct planting can enhanceshallot plant growth when propagated from TSS seeds.
The Effect of Growing Media Composition and Eco-Enzyme Concentration on the Growth and Yield of Tomato (Lycopersicon esculentum) Daffa Novendra Aditama; Nova Triani; Djarwatiningsih
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4860

Abstract

Growth and production of tomato (Lycopersicon esculentum) are influenced by the quality of the planting mediumand nutrient availability. This study aimed to determine the effects of planting medium and eco-enzymeconcentration on the growth and yield of tomato plants. A two-factor Randomized Block Design was used, withfactors including planting medium (soil; soil and rice husk charcoal 1:1; soil and cow manure 1:1; soil, rice huskcharcoal, and cow manure 1:1:1) and eco-enzyme concentration (0, 1, 2, and 3 ml/L). The results showed asignificant interaction between planting medium and eco-enzyme concentration on plant height from 28 to 63days after planting, number of fruits per plant, and fruit weight per plant. The best treatment was thecombination of soil and cow manure (1:1) with 3 ml/L eco-enzyme. The planting medium significantly affectedplant height at 14 to 21 days after planting, the number of leaves from 14 to 42 days after planting, and floweringage, while the eco-enzyme concentration significantly affected plant height at 14 to 21 days and the number ofleaves from 14 to 35 days after planting. The combination of organic growing media with eco-enzymes canenhance tomato growth and yield, particularly in terms of plant height, fruit number, and fruit weight per plant.These results suggest this treatment is optimal for increasing tomato growth and production by improving soilphysical, chemical, and biological characteristics.
Increasing the Growth and Yield of Tomato Plants (Lycopersicum esculentum Mill.) by Providing Potassium and Paclobutrazol Nora Zubaidi; Djarwatiningsih; Agus Sulistyono
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4861

Abstract

Tomatoes (Lycopersicum esculentum Mill.) are a horticultural commodity with high economic value, but theirproductivity is often hampered by flower and fruit loss. Increasing growth and yield can be achieved throughpotassium fertilization, which plays a role in photosynthesis and fruit formation, and through the application ofthe growth regulator paclobutrazol, which suppresses vegetative growth and stimulates the generative phase. Thisstudy aims to evaluate the effects of potassium fertilizer dose and paclobutrazol concentration, and theirinteractions, on tomato growth and yield. The study was conducted in Surabaya from November 2024 to February2025 using a factorial Randomized Block Design with two factors: potassium fertilizer doses (110, 125, 140, 155kg/ha) and paclobutrazol concentrations (0, 100, 125, 150 ppm), each factor repeated three times. The resultsshowed that the combination of 140 kg/ha potassium fertilizer and 125 ppm paclobutrazol produced the highestnumber of leaves (37), number of bunches (6.78), total number of fruits (37.67), and total fruit weight per plant(1,509.27 g). Potassium fertilizer at 140 kg/ha alone produced the highest number of flowers (69.41), whilepaclobutrazol at 125 ppm accelerated flower emergence (34.53 days), increased the number of flowers (69.77),and increased fruit weight per harvest period. Thus, using 140 kg/ha of potassium fertilizer combined with 125ppm paclobutrazol is recommended as the most effective treatment to optimize tomato plant growth and yield.
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.
Respons Pertumbuhan dan Produktivitas Jagung BISI 18 terhadap Aplikasi Paclobutrazol dan Pupuk Nitrogen Umi Alfia; Djarwatiningsih Pongki Soedjarwo; Agus Sulistyono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.25-34

Abstract

[GROWTH AND YIELD OF BISI 18 MAIZE AS AFFECTED BY PACLOBUTRAZOL APPLICATION AND NITROGEN FERTILIZATION]. Maize (Zea mays L.) is a vital commodity in Indonesia that requires higher productivity. Tall-growing hybrid maize is prone to lodging; therefore, paclobutrazol can be used to suppress vegetative growth, while nitrogen supports plant growth and yield. This study aimed to determine the optimal paclobutrazol concentration and nitrogen fertilizer rate for the growth and yield of BISI 18 maize. The experiment was arranged in a split-plot design with two factors: paclobutrazol concentrations (0, 1250, 1500, and 1750 ppm) and nitrogen fertilizer rates (350, 400, 450, and 500 kg/ha). Paclobutrazol was applied as a foliar spray at 18 and 37 days after planting (DAP), while nitrogen fertilizer was applied by dibbling at 14, 35, and 49 DAP. Data were analyzed using analysis of variance (ANOVA) followed by the Honestly Significant Difference (HSD) test at the 5% level. The results showed a significant interaction between paclobutrazol concentration and nitrogen rate, with different optimal combinations for each parameter. The combination of 1750 ppm paclobutrazol and 350 kg/ha nitrogen produced the shortest plants, while 1750 ppm paclobutrazol with 450 kg/ha nitrogen resulted in the highest number of leaves. The earliest tasseling occurred with 1250 ppm paclobutrazol and 500 kg/ha nitrogen. A nitrogen rate of 450 kg/ha produced the highest grain weight per plant and per plot, increasing dry grain yield to 10.69 t/ha. Increasing paclobutrazol concentration suppressed plant height; however, excessive concentrations and nitrogen rates may inhibit growth. Paclobutrazol concentrations of 1250–1500 ppm combined with 450 kg/ha nitrogen were sufficient to achieve optimal growth and yield.
Respon Pertumbuhan dan Produksi Terong Ungu Terhadap Pemberian Kotoran Hewan Sapi dan NPK 16-16-16: Response of Growth and Yield of Purple Eggplant to Cattle Manure and NPK 16-16-16 Application Media Farica Diva; Rr. Djarwatiningsih Djarwatiningsih; Felisitas Deru Dewanti
Agrocentrum Vol. 4 No. 1 (2026): Agrocentrum
Publisher : Agriculture Faculty - UPN "Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/agrocentrum.v4i1.111

Abstract

This study looked at how important growth and production characteristics of purple eggplant (Solanum melongena L.) were affected by cow dung and NPK 16-16-16 fertilizer, both separately and in combination. Plant height, flowering time, total number of fruits per plant, total fruit weight, fruit length, and fruit diameter were the main emphasis of the study. A factorial design was employed in the experiment, and analysis of variance was utilized to examine the results. The interaction between NPK 16-16-16 and cow dung did not significantly affect any of the characteristics that were examined, according to the results. Plant height, flowering period, fruit quantity, weight, length, and diameter were all not substantially impacted by cattle dung alone. Better responses were obtained in a number of yield components by NPK 16-16-16, although not all results were statistically significant. In general, single factors particularly NPK have a greater impact on plant growth and yield than treatment interactions.
Co-Authors Agus Sulistyono Agus Sulistyono Ahmad Khafid Afianto Ahmad Khafid Afianto Andriana Ela Saputri Anissa Diah Nuryanti Arifa Bingar Mulia Aryadeva kemal Rafii Asya Zhafira Khairunissa Bambang Wahyudi Caecilia Pujiastuti Choirina Kamilia Rohani Daffa Novendra Aditama Decky Zulkarnaen Della Rahma Cynthia Dewanti, Felicitas Deru Efrilia Lukita Sari Felisitas Deru Dewanti Firda Aisha Salsabila Firda Rohatul Widad Firda Rohatul Widad Fitriany Primawati Fitriany Primawati G, Guniarti Gabriella Nathalia Guniarti G Guniarti G Guniarti Guniarti Guniarti Guniarti Guniarti Guniarti Guniarti Guniarti Hadi Suhardjono Hesty Astria Samputri Ida Retno Moeljani Jeremia Setyo Laksono Kiki Adelia Putri Kindriari Nurma Wahyusi Mahargian Hammam Mu'afa Mahargian Hammam Mu’afa Makhziah Media Farica Diva Muhammad Faishal Octadianto Mu’tasim Billah Nora Zubaidi Nova Triani Novel Karaman Novita Dyah Safitri Pangesti Nugrahani Phebian Adam Pahlevy Pribadi, Didik Utomo Renova Panjaitan Rizky Putra Sampurna S, Suwandi Sandy Buana Putra Sandy Buana Putra Santoso, Juli Selvia Mauradilla Utami Sintha Dayu Aringgani Siswanto Moenandar Susilowati Susilowati Suwandi S Syabucha Nissa Maulida Umi Alfia W, Wardani W. Guntoro Wardani W Widi Wurjani Widi Wurjani Widiwurjani Zerlinda Aqila Gitta Maharani Zulkarnaen, Decky