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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Penelitian Saintek Agrikultura Bionatura Indonesian Journal of Applied Sciences Journal of Tropical Soils Jurnal Tanaman Industri dan Penyegar AGRIVITA, Journal of Agricultural Science Jurnal Agroekoteknologi Jurnal Agro Science and Technology Indonesia Kultivasi Jurnal Aplikasi Teknologi Pangan Jurnal Agribest Eksakta : Berkala Ilmiah Bidang MIPA J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Agrinika : Jurnal Agroteknologi dan Agribisnis Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science)
Jajang Sauman Hamdani
Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Other

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Effect of biochar composition and paclobutrazol concentration on growth and yield of G1 Medians cultivar potato seeds in Jatinangor medium plain Hamdani, Jajang Sauman; Putri, Zahira Salsabilla Idris; Sutari, Wawan
Kultivasi Vol 23, No 2 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i2.48743

Abstract

Potato seed production in the medium plain is necessary to avoid environmental damage and the limited area of potato seed production in the high plain. The effort to increase the production of G1 potato seeds on the medium plain is the evaluation of the biochar composition and concentration of paclobutrazol that can increase the production G1 potato seeds cv Medians in the medium plain of Jatinangor. The research was conducted from August to December 2022 at the Ciparanje Experimental Field. Jatinangor. Faculty of Agriculture. Universitas Padjadjaran. The experiment used a Factorial Randomized Block Design (RBD). The first factor was the biochar composition: m1 (100% compost), m2 (80% compost + 20% rice husk biochar), m3 (80% compost + 20% coconut shell biochar), and m4 (80% compost + 10% biochar husk rice + 10% coconut shell biochar). The second factor was the paclobutrazol concentration: p1 (without paclobutrazol), p2 (100 ppm paclobutrazol), and p3 (150 ppm paclobutrazol). The experimental results showed that there was no reaction effect of biochar compositions and paclobutrazol concentrations on the growth and yield of G1 potato seeds. The application of 80% compost + 20 % rice husk biochar gave significantly higher yields than treatment without biochar. The number of tubers was 6.29 knol per plant and the tuber weight was 66.80 g per plant. Application of 100 ppm paclobutrazol resulted in lower plant height, gave the number of tubers was 6.39 knol per plant, tuber weight per plant was 63.34 g higher than without paclobutrazol and produced more seed tubers with S class.
The effect of seed provenance and organic fertilizer types on growth and yield of G2 potato (Solanum tuberosum L. cv. Medians) seeds in Jatinangor medium plains Rafiif, Mohammad Faisal; Sutari, Wawan; Hamdani, Jajang Sauman
Kultivasi Vol 23, No 3 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i3.55538

Abstract

Potato growth is influenced by seed provenance and fertilization, but the availability of high-quality potato seeds is still limited. To overcome those challenges, solutions include using temperature-tolerant potato varieties from medium plains and applying organic fertilizers to improve potato growth and yield. The purpose of this research was to determine the effect of the interaction between seed provenance and application of organic fertilizers on the growth and yield of G2 potato seeds of the Medians cultivar in the Jatinangor medium plains. The research was conducted from June to October 2023 at the Ciparanje Experimental Farm, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. The research design used was a Factorial Randomized Group Design (RBD). The first factor is the provenance of the potato seeds from the medium and high plains. The second factor is the type of organic fertilizer, namely chicken manure, cow manure, and guano fertilizer. The results showed that there was no interaction between the seed provenance and types of organic fertilizer on the growth and yield of G2 potato seeds of the Medians cultivar in Jatinangor medium plains. The use of seeds from medium plains had a significant effect on plant height, plant dry weight, and the percentage of stolons forming tubers. The application of cow manures with a dose of 225 g gave the best effect on leaf area, the number of tubers, and the weight of tubers per plant.
An overview of gibberellin inhibitors for regulating vegetable growth and development Setiawan, Erik; Budiarto, Rahmat; Hamdani, Jajang Sauman; Ghorbanpour, Mansour
Kultivasi Vol 23, No 3 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i3.58797

Abstract

Gibberellin (GAs) promotes plant growth processes like germination, shoot elongation, root development, and flowering, while its inhibition is occasionally used in some vegetable crop practices. This paper aims to review the current literature on GAs inhibitors in practical vegetable crops and suggest future strategies for increasing yield. In some vegetable crops, inhibiting GAs with natural (abscisic acid, ethylene) or synthetic (paclobutrazol, prohexadione-Ca) regulators is key to improving yield and quality. Abscisic acid (ABA) counteracts GAs in germination and stress adaptation, while ethylene (ET) opposes GAs in senescence and growth inhibition. The application of paclobutrazol (PBZ) and prohexadione-Ca (Pro-Ca) is known to inhibit synthetic GAs, resulting in denser plants while improving plant photosynthetic efficiency, which improves crop yield. Achieving desired growth and yields with GAs inhibitors relies on precise dosing, emphasizing the importance of review studies for advancing vegetable cultivation.
Enhancing microbial population and biomass of water spinach grown in tailing and inceptisols by manure amendment Hindersah, Reginawanti; Suryatmana, Pujawati; Herdiyantoro, Diyan; Hamdani, Jajang Sauman
Jurnal AGRO Vol 11, No 2 (2024)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/39611

Abstract

The impact of tailings accumulated on agricultural land is the loss of soil profile and decreased soil quality, making plants difficult to grow. This study aimed to observe the effect of cow dung manure (CM) doses to gold mine tailings on total fungal and bacterial populations of soil surrounding roots and water spinach biomass and to analyze the correlation between fungal and bacterial populations with water spinach growth parameters. The experiment was designed in a randomized block design with five treatments and five replications. The treatments included without CM (control) and 5, 10, 15, and 20% of CM in tailing. Similar treatments were added to plants grown in mineral soil, i.e. Inceptisols. The results determined the retarded plant growth in tailing compared to that in Inceptisols. The plant grown in tailing was more responsive to manure amendment. The CM increased total fungal and bacterial populations in the soil around the roots, plant height, leaf number, stem thickness, wet weight, and dry weight of intact plants. Applying 5% of CM caused better growth of water spinach than other treatments. Total fungal and bacterial populations were strongly correlated with water spinach height and dry weight. ABSTRAK Dampak negatif penumpukan tailing di lahan pertanian adalah hilangnya profil tanah dan penurunan kualitas tanah sehingga tanaman sulit tumbuh. Penelitian ini bertujuan untuk mengobservasi pengaruh pemberian dosis pupuk kotoran sapi (PKS) pada tailing tambang emas terhadap populasi jamur dan bakteri total biomassa kangkung darat (Ipomoea reptans (L.) Poir.) serta menganalisis korelasi antara populasi jamur dan bakteri di tanah sekitar perakaran dengan parameter pertumbuhan kangkung. Percobaan pot di rumah kaca disusun dalam rancangan acak kelompok dengan lima perlakuan dan lima ulangan. Perlakuan percobaan adalah tanpa dan dengan penambahan 5, 10, 15 dan 20% PKS ke dalam tailing. Perlakuan yang sama diberikan pada tanaman kangkung dengan tanah Inceptisol. Hasil percobaan menunjukkan bahwa pertumbuhan kangkung di tailing terhambat dibandingkan di tanah Inceptisols, tetapi tanaman di tailing lebih responsif terhadap aplikasi PKS. Pupuk kotoran sapi mampu meningkatkan populasi jamur dan bakteri total di sekitar perakaran, tinggi tanaman, jumlah daun, ketebalan batang, bobot basah serta bobot kering tanaman di tailing. Pemberian 5% PKS lebih meningkatkan pertumbuhan tanaman kangkung dibandingkan dengan perlakuan lainnya. Populasi jamur dan bakteri masing-masing berkorelasi positif dengan hubungan yang sangat kuat dengan bobot kering serta tinggi tanaman kangkung. Percobaan ini menjelaskan bahwa bahan organik penting untuk memperbaiki kualitas tailing dan pertumbuhan tanaman.
Respons Hasil Beberapa Kultivar Kentang (Solanum Tuberosum L.) Terhadap Naungan pada Sistem Agroforestry Muttaqin, Zaenal; Hamdani, Jajang Sauman; Kusumiyati , Kusumiyati
Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) Vol. 22 No. 2 (2024): Agritrop: Jurnal Ilmu-Ilmu Pertanian
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/agritrop.v22i2.2615

Abstract

Tanaman  kentang yang dibudidayakan pada lahan  pola  sistem  agroforestry umumnya akan tumbuh dalam kondisi yang ternaungi oleh vegetasi dengan kerapatan naungan yang berbeda. Penelitian  ini bertujuan untuk mengetahui respon hasil tanaman kentang (Solanum tuberosum L.) terhadap  naungan. Percobaan dilakukan di lahan pertanian Blok Ledon Desa Padaawas Kecamatan Pasirwangi Kabupaten Garut ketinggian tempat 1.750 m dpl, jenis tanah ordo andisols dari bulan April sampai Juli 2023. Rancangan percobaan yang digunakan Rancangan Petak Terbagi, dengan naungan sebagai petak utama terdiri  atas 4 naungan, yaitu : 0 %, naungan 25%, naungan 50 %  dan naungan 75%. Kultivar  sebagai anak petak terdiri atas 3 kultivar, yaitu :  Granola, RGH-01  dan Medians. Hasil penelitian menunjukkan   Naungan dan kultivar masing-masing secara mandiri berpengaruh  nyata terhadap jumlah ubi per tanaman dan indeks panen. Naungan 25 % menunjukkan hasil terbaik terhadap semua parameter pengamatan. Kultivar Medians menunjukkan hasil terbaik terhadap semua parameter pengamatan
Mycorrhiza Enhanced Protein and Lipid Contents of Potatoes Grown on Inceptisol with Addition of Organic Matter Nurbaity, Anne; Uratel, Glenn Christopher; Hamdani, Jajang Sauman
JOURNAL OF TROPICAL SOILS Vol. 24 No. 3: September 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i3.129-133

Abstract

Enhancement of productivity of potato plants grown on poor-P soil such as Inceptisols due to application of arbuscular mycorrhizal fungi (AMF) has been acknowledged. However, whether this AMF improved the quality of potato tubers is still need further investigation. This study was conducted to evaluate the effectiveness of AMF in enhancing potato quality and determine whether the addition of compost and biochar to soil can support the productivity of this biofertilizer in enhancing the nutrient content in the tubers of potato plant. Screen house experiment was set up in factorial design with treatments were organic matter types (compost and compost plus biochar), and application of arbuscular mycorrhiza (without and with AMF consisted of Glomus sp. and Gigaspora sp.). Results of experiment showed that there was no interaction effect between organic matter and AMF on quality of potato tubers, however, the individual treatment especially AMF  increased the content of protein and lipid of potato tubers. Biochar that added to soil with compost was also increased the lipid content of potato tubers. This finding showed that AMF application in potato production grown in poor P-soil was not only increased the yield of potato, but also increased the quality of potato tubers.
Composition and Dose of Ameliorant Against C/N Ratio, Soil pH, Plant Phosphate Content on Potato Plants Parlinah, Linlin; Hamdani, Jajang Sauman; Nurbaity, Anne; Nuraini, Anne
JOURNAL OF TROPICAL SOILS Vol. 26 No. 3: September 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i3.115-119

Abstract

This research aimed to study the addition of ameliorant material in the soil to increase fertility rates, especially for potato plants grown at the height of 750 m above sea level. The experiments were conducted on medium plains 750 m above sea level in the Jatinangor area, Indonesia, with land type Incepticol. The composition of ameliorant consists of Cattle manure, biochar from coconut shells, and dolomite. The seeds of the potatoes used are relatively good varietal when cultivated in a medium plain. The design of the environment used is the group’s random draft repeated three times, the treatment design consists of K0: control; K1: Cattle manure 10 Mg ha-1; K2: Cattle manure 20 Mg ha-1; K3: Cattle manure 8 Mg ha-1, dolomite 1 Mg ha-1, 1 Mg ha-1 biochar; K4: Cattle manure 16 Mg ha-1, dolomite 2 Mg ha-1, 2-Mg biochar ha-1, K5: Cattle manure 8 Mg ha-1, dolomite 2 Mg ha-1; K6: Cattle manure 16 Mg ha-1, dolomite 4 Mg ha-1; K7: Cattle manure 8 Mg ha-1, biochar 2 Mg ha-1; K8: Cattle manure 16 Mg ha-1, biochar 4 Mg ha-1. Results showed that the composition and dose of ameliorant could increase the value of soil pH but have not improved the C/N ratio and absorption of phosphorus plants. The best result was obtained from the composition treatment of 16 Mg ha-1 Cattle manure, 2 Mg ha-1 dolomite, and 2 Mg ha-1 biochar. Soil pH is capable of increased by 16.83%, and the size of the potato bulbs of Class L (450-550 mm) amounted to 35, 11%, size M (350-450 mm) by 25.89%, and size S (200-350 mm) amounting to 34.37% when compared with controls.
Study on Color Properties of Auricularia auricula-judae (Bull.) Quél. Affected by Nano Edible Coatings, Packaging Types, and Storage Temperatures Kusumiyati, Kusumiyati; Rachman, Aulia Afifah; Hamdani, Jajang Sauman
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 26 No. 03 (2025): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol26-iss03/614

Abstract

Wood ear mushroom is a traditional edible and medicinal mushroom widely consumed as a food supplement. The color of the fruit body is a crucial indicator of commercial quality that influences consumer purchasing interest. However, color quality can decrease due to inappropriate post-harvest technology. The application of nano edible coating, packaging, and storage temperature can help maintain color stability during storage. This study aims to determine the effect of nano edible coating, packaging, and storage temperature on the color of wood ear mushrooms based on the parameters L*, a*, b*, Chroma, Hue, Browning Index, and color difference. The experimental design used was a Completely Randomized Design (CRD) with a combination of nano edible coating (sodium alginate and aloe vera), packaging (biodegradable, wrap, and vacuum plastic), and storage temperatures (±25 ℃, 10 ℃, and 5 ℃). Each treatment was repeated twice, resulting in 38 experimental units, each consisting of 3 mushrooms, total of 114 mushrooms. The results showed that nano aloe vera with vacuum packaging at a storage temperature of 5 ℃ provided the best results in maintaining the color of the wood ear mushroom during storage, with the lowest lightness and color difference values.
Evaluation of color, water content, and antioxidant properties of wood ear mushroom with nano edible coating, packaging, and storage temperature Rachman, Aulia Afifah; Hamdani, Jajang Sauman; Kusumiyati, Kusumiyati
Kultivasi Vol 24, No 2 (2025): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v24i2.65178

Abstract

Wood ear mushrooms are often consumed in Asia and Tropical America for their jelly-like texture, health, and freshness. However, they are easily damaged due to microbes and poor postharvest handling, which affects quality. The combination of nano edible coating, packaging, and storage temperature offers a solution to these issues. This study aims to evaluate the effect of nano edible coating, packaging, and storage temperature on the color (L*, a*, and b*), water content, and antioxidant properties (total phenolic and flavonoid) of wood ear mushrooms. The study was conducted at the Horticulture Laboratory, Faculty of Agriculture, Universitas Padjadjaran. The experimental design used was a Completely Randomized Design with a total of 18 combinations of nano edible coating (sodium alginate and aloe vera), packaging (biodegradable, wrap, and vacuum plastic), and storage temperature (±25 ℃, 10 ℃, and 5 ℃). Each treatment was replicated twice, resulting in 36 experimental units, with 3 mushrooms per unit for a total of 108 mushrooms. The results showed a significant effect of the combination treatments on L* at 9 days after treatment (DAT), a* at 6 DAT, water content at 6 and 9 DAT, total phenolics, and total flavonoids during the storage period. Nano aloe vera with vacuum packaging at 5 ℃ gave the best effect on L* value at 9 DAT, water content at 6 and 9 DAT, total phenolic at 3 and 6 DAT, and total flavonoid at 6 DAT. These results indicated the potential of the treatment in maintaining the quality of the wood ear mushroom during storage.
Effect of preharvest paclobutrazol and nitrogen fertilizers on the sprouting performance of ‘median’ potato seed G0 tuber Hamdani, Jajang Sauman; Budiarto, Rahmat; Nuraini, Anne; Ramadani, Selika Fitrian
Kultivasi Vol 24, No 2 (2025): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v24i2.64652

Abstract

Various intensifications of potato cultivation, such as the provision of paclobutrazol and nitrogen (N) fertilizer, are thought to impact the quality of the seeds produced. This study aims to evaluate the effects of different N fertilizer doses and paclobutrazol concentrations applied in the preharvest period on the sprouting performance of G0 potato tuber seeds after storage. Nine treatment combinations, each repeated three times, were tested, using 50%, 100%, and 150% of the recommended N dose and paclobutrazol concentrations of 50, 100, and 150 part per million (ppm), applied at 30 and 45 days after planting, respectively. The interaction effect between N fertilizer and paclobutrazol concentration was not significantly affected on all observed variables. Preharvest application of 100% N fertilizer produced the largest seedlings, indicated by the highest shoot length at 56 and 74 days after storage. Preharvest application of 150 ppm paclobutrazol produced the highest shoot length, shoot emergence rate, and seedling dry weight than other treatments. The present study implied the importance of preharvest N and paclobutrazol for improving the sprouting performance of G0 potato seed tuber.
Co-Authors ,, Sumadi Ade Risti Oktavia Ade Setiawan ANNE NURAINI ANNE NURBAITY Anne Nurbaity Anne Nurbaity Benny Joy Cucu Suherman D Yadi Heryadi Dewi, Tessa Prima Dian Ardiansyah Dian Ardiansyah DIYAN HERDIYANTORO Diyan Herdiyantoro Drikarsa, Drikarsa Ega Raisya Erik Setiawan Erni Suminar Farida - Farida Farida Ghifari, Muhamad Aditia Ghorbanpour, Mansour Glenn Christopher Uratel Grace Pratiwi Manurung Gultom, Siska Rahmayani Haifa Ruwaidah Heni Radiani Arifin Heri Sahrian Heri Syahrian Heri Syahrian Khomaeni Iin Handayani Imas Siti Setiasih Ine Elisa Putri Ine Elisa Putri Intan Ratna Dewi Anjarsari Kusumiyati Kusumiyati Kusumiyati , Kusumiyati M. Amrul Khoiri Mahfud Arifin Martins, Lourenco Maulana, Yusuf Eka Mieke Rochimi Setiawati Mochamad Arief Soleh Nenny Nurlaeny Nita Yuniati Nita Yuniati Nurjanah, Resti Nuzula Suci Azima Nuzula Suci Azima, Nuzula Suci Parlinah, Linlin Pujawati Suryatmana Putri, Adinda Rosmaya Putri, Zahira Salsabilla Idris Rachman, Aulia Afifah Rafiif, Mohammad Faisal Rahmat Budiarto Ramadani, Selika Fitrian Ramadhani, Rahmatillah Reginawanti Hindersah Rika Bhernike Sitepu Risa Nurul Falah Ruminta Ruminta Sahrian, Heri Soleh, Mochamad Arief Sumadi Sumadi Sumadi Sumadi SUMADI SUMADI Sumadi Sumadi Suriadinata, Yayat Rochayat SYAHBUDIN Y. SYARIFUL MUBAROK Tati Nurmala Tati Nurmala Tati Nurmala Tati Nurmala Tessa Prima Dewi Trisna Insan Noor Tualar Simarmata Tualar Simarmata Uratel, Glenn Christopher Vitria Puspitasari Rahadi Vitria Puspitasari Rahadi Vitria Puspitasari Rahadi Wawan Sutari Yuyun Yuwariah Zaenal Muttaqin