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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

Author-ID : 273402

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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High temperature in potato: plant responses and adaptive cultivation strategies to increase production Gultom, Siska Rahmayani; 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.v24i2.63168

Climate change, with global temperatures rising by 1.09°C from 1850–1900 to 2011–2020, threatens potato production, a critical staple crop, by exceeding the optimal temperature range of 15–20°C. This review synthesizes over 45 peer-reviewed studies published between 2015 and 2025 from Google Scholar and ScienceDirect to evaluate the physiological, morphological, and tuber quality responses of potatoes to high temperatures and to identify adaptive cultivation strategies for sustainable production. High temperatures reduce photosynthetic efficiency through chlorophyll degradation and stomatal closure, increase respiration, and divert photosynthates to vegetative growth, leading to 18–32% yield losses globally by the 2050s. Heat-tolerant varieties, such as Atlantic (11.47 tons/ha), Merbabu-17 (11.04 tons/ha), and Granola (3.61 tons/ha), maintain productivity in medium-altitude lands. Plant growth regulators (PGRs), including BAP, melatonin, and paclobutrazol, enhance tuber yield by regulating hormonal balance and antioxidant activity. Drip irrigation and mulching (e.g., straw, wheat, plastic films) improve water use efficiency and buffer soil temperature. These integrated strategies of heat-tolerant varieties, PGRs, irrigation, and mulching offer practical solutions to mitigate heat stress and ensure sustainable potato production under changing climate conditions.

Organic Fertilizer Types at Different Interval Comparison to Butterfly Pea Flower Growth and Yields Nurjanah, Resti; Kusumiyati; Hamdani, Jajang Sauman
Jurnal Agrinika: Jurnal Agroteknologi dan Agribisnis Vol 7 No 2 (2023): SEPTEMBER
Publisher : Kadiri University - Faculty of Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/agrinika.v7i2.4859

The butterfly pea (Clictoria ternatea) is one of the horticulture plants. It is part of the ornamental plant group. This plant has many uses, such as food colouring and herbal remedies. Butterfly peas are cultivated organically. However, there needs to be more research regarding adding varieties of organic fertilizers and different fertilization intervals to the plant. The research was executed in Sukalaksana Village, Samarang Subdistrict, Garut Regency, whereas the quality analysis was completed in the Horticulture Cultivation Department of UNPAD Agriculture Faculty. Experimental design of factorial Rancangan Acak Kelompok (RAK) / Randomized Block Design was used. The main factor is the liquid organic fertilizer, made from three different materials: banana stems LOF, chicken manure LOF, and Nasa LOF. The second factor is the fertilization intervals, which were scheduled in three different intervals: once a week, once every two weeks, and once every three weeks. Each interval was repeated three times. Results showed interaction between organic fertilizer types and fertilization intervals on leaf numbers, shoot and roots ratio, number of flowers and flower weight. The best interaction was LOF chicken manure types with fertilization intervals of 3 weeks, which gave higher results in the number of leaves, shoot and root ratio, number of flowers per plant, flower weight per plant and antioxidant content.

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

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.

Effect of Poultry Manure and Ethephon on Growth, Yield, and Quality of Cayenne Pepper (Capsicum frutescens L.) ‘Ratuni UNPAD’ Kusumiyati, Kusumiyati; Ramadhani, Rahmatillah; Maulana, Yusuf Eka; Hamdani, Jajang Sauman
AGRIVITA Journal of Agricultural Science Vol 46, No 1 (2024)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v46i1.4034

The production of 'Ratuni UNPAD' cayenne pepper can be increased using organic chicken manure. However, the application of ethephon is needed during fertilization due to the significantly slow flower initiation. Therefore, this study aims to determine the interaction between chicken manure and ethephon on the growth, yield, and quality of the 'Ratuni UNPAD' cayenne pepper. Planting is carried out 829 meters above sea level (masl), and a factorial randomized block experimental design comprises 2 factors with 3 replications. The first factor is the dose of chicken manure (10, 20, 30, and 40 t/ha), while the second is the ethephon concentration (0, 500, 1000, and 1500 ppm). The results showed no interaction between poultry manure and ethephon on the growth, yield, and quality of the 'Ratuni UNPAD' cayenne pepper. According to the doses of chicken manure, 40 t/ha significantly affects the flower initiation, fruit number, weight, length, and diameter, as well as capsaicin and dihydrocapsaicin. The 30 t/ha shows the highest value for the number of leaves and productive branches, while 20 tons dose/ha influences flavonoids, phenolics, and total carotenoids. The ethephon concentration of 1500 ppm significantly affects the flower initiation, fruit length, diameter, capsaicin, and dihydrocapsaicin.

Pengaruh Jenis Mulsa terhadap Pertumbuhan dan Hasil Tiga Kultivar Kentang (Solanum tuberosum L.) yang Ditanam di Dataran Medium Hamdani, Jajang Sauman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The objectives of the experiment were to study growth and yield of three potato (Solanum tuberosum L.) cultivars planted at medium altitude with different types of mulch. The experiment is located at experimental station of Faculty of Agriculture, Padjadjaran University, Jatinangor, Sumedang at an altitude of about 680 m. The experiment was arranged in a Randomized Completed Block Design with factorial pattern, consisting of two factors and three replications. First factor was potato cultivar (Granola, Kennebec, and Panda), and the second factor was types of mulch, consisted of three levels : without mulch, straw mulch, and silver black polyethylene mulch. The result of the experiment showed that Panda cultivar had highest dry weight (29.5 g/plant) and leaf area (2513.7 cm2), while Granola cultivar had highest number of tuber per plant (15.17 knol/plant ) and highest tuber weight per plant was 650.6 g/plant (30.3 t.ha-1). Straw and silver black polyethylene mulches increased leaf area, dry weight, number of tuber per plant and tuber weight per plant. The effect of interaction betwen potato cultivar and source of mulch was significant on plant height. Panda cultivar and silver black polyethylene mulch resulted the highest height of plant (68.2 cm). Key words: Potato cultivar, mulch, medium altitude

Pengaruh Naungan dan Zat Pengatur Tumbuh terhadap Pertumbuhan dan Hasil Tanaman Kentang Kultivar Atlantik di Dataran Medium Hamdani, Jajang Sauman; ,, Sumadi; Suriadinata, Yayat Rochayat; Martins, Lourenco
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 44 No. 1 (2016): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTUse of shade on the cultivation of potato in medium altitude is expected to reduce both light intensity and temperature, and therefore is more suitable for potatoes to grow in medium altitude. While the use of growth regulators subtances improving the process of assimilate distribution from the leaves to the tuber. Therefore use of shade followed by plant growth regulators applications are expected to increase of growth and yield. The objectives of the experiment were to determine growth and yield of potato cultivar Atlantik grown at medium altitude with different types of shading and plant growth regulators. The experiment was conducted at an experimental station of the Faculty of Agriculture, Padjadjaran University, Jatinangor, Sumedang, at an altitude 685 m asl. The experiment was arranged in a split plot design consisting of two factors and three replications. The main plots were types of shading (without shading, paranet 45%, UV polyethylene, and corn plant) and the sub plots were combination of plant growth regulators (benzylaminopurine + paclobutrazol), (benzylaminopurine +chloro choline chloride), benzylaminopurine, paclobutrazol, chloro choline chloride). The results showed that the effect of interaction between shading and plant growth regulator on growth and yield of the potato were not significant. Paranet shade and corn plant shade increased plant height, leaf area index, tuber weight per plant, yield per hectar and tuber grade A of potato cultivar Atlantik. Corn plant shading gave potato yield 21.6 ton ha-1 with 64% grade A tuber. Paclobutrazol decreased potato plant height, but increased number of tuber per plant and yielded highest tuber weight of 702.1 per plant (23.3 ton ha-1 ), with 70.9% grade A tuber. Keywords: Benzylaminopurine, microclimate, paclobutrazol, temperature

Studi Pemangkasan dan Aplikasi Sitokinin-Giberelin pada Tanaman Teh (Camellia sinensis (L.) O. Kuntze) Produktif Klon GMB 7 Dewi Anjarsari, Intan Ratna; Jajang Sauman Hamdani; Cucu Suherman; Tati Nurmala; Heri Syahrian Khomaeni; Vitria Puspitasari Rahadi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 49 No. 1 (2021): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Pemangkasan pada tanaman teh yang dilakukan di kebun teh produktif menyebabkan sebagian besar atau secara keseluruhan organ fotosintesis tanaman hilang dan diperlukan waktu sekitar 2-3 bulan utuk tumbuh kembali. Pemangkasan dilakukan dengan jenis dan tinggi pangkasan yang bervariasi. Penambahan sitokinin benzil amino purine (BAP) dan giberelin (GA) diharapkan dapat mempercepat pertumbuhan pucuk setelah dipangkas. Tujuan penelitian adalah mempelajari pengaruh pemangkasan serta aplikasi BAP dan GA terhadap pertumbuhan dan hasil pucuk teh. Percobaan dilaksanakan kebun percobaan Pusat Penelitian Teh dan Kina Gambung bulan Agustus 2017-Oktober 2018 menggunakan rancangan split-split plot terdiri dari jenis pemangkasan (pemangkasan bersih dan pemangkasan ajir) sebagai petak utama, tinggi pangkasan sebagai anak petak (40 cm, 50 cm, dan 60 cm), aplikasi BAP dan GA sebagai anak-anak petak (0 ppm, 60 ppm BAP, 50 ppm GA, 60 ppm BAP+ 50 ppm GA). Hasil penelitian menunjukkan bahwa pemangkasan bersih dan 60 ppm BAP + 50 ppm GA menghasilkan pertumbuhan terbaik pada tinggi tunas. Tinggi pangkasan 60 cm dan 60 ppm BAP menunjukkan indeks klorofil daun tertinggi bulan ke-3 sebesar 91.58 (lebih tinggi daripada hasil penelitian sebelumnya yaitu 62.5-75.28), sedangkan tinggi pangkasan 60 cm dan 60 ppm BAP + 50 ppm GA memberikan bobot basah pucuk per perdu tertinggi pada pemetikan produksi. Secara tunggal, tinggi pangkasan 50 cm menurunkan jumlah pucuk burung serta 50 ppm GA mempersingkat lamanya masa dormansi pucuk menjadi 22 hari. Kata kunci: dormansi pucuk, pucuk burung, teh produktif

Pengaruh Perbedaan Jenis Bangunan Pertanian dan Volume Penyiraman terhadap Pertumbuhan, Hasil, dan Kualitas Tomat Ceri (Solanum lycopersicum var. cerasiforme) Ghifari, Muhamad Aditia; Kusumiyati, Kusumiyati; Hamdani, Jajang Sauman
Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) Vol. 22 No. 1 (2024): Agritrop: Jurnal Ilmu-Ilmu Pertanian
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/agritrop.v22i1.1852

Kondisi iklim dan ketersediaan air menjadi kendala budi daya tomat ceri di Indonesia. Rekayasa mikroklimat menggunakan bangunan pertanian serta pengaturan volume penyiraman dapat meningkatkan hasil dan kualitas tomat ceri. Tujuan penelitian ini untuk mengetahui pengaruh perbedaan jenis bangunan pertanian dan volume penyiraman terhadap pertumbuhan, hasil, dan kualitas tomat ceri. Penelitian dilaksanakan pada November 2022 hingga Juni 2023 di Fakultas Pertanian, Universitas Padjadjaran. Penelitian ini menggunakan rancangan petak terbagi dengan dua faktor. Jenis bangunan pertanian sebagai petak utama dengan tiga taraf, yaitu greenhouse, rain shelter, dan screenhouse. Volume penyiraman sebagai anak petak dengan tiga taraf, yaitu 100%, 75%, dan 50% evapotranspirasi tanaman (ETc). Hasil penelitian menunjukkan bahwa tidak terdapat interaksi antara jenis bangunan pertanian dan volume penyiraman terhadap pertumbuhan, hasil, dan kualitas tomat ceri. Jenis bangunan pertanian berpengaruh nyata terhadap tinggi tanaman, jumlah daun, kadar klorofil indeks daun, bobot buah per butir, persentase buah layak pasar, persentase buah Kelas A dan Kelas B. Volume penyiraman berpengaruh nyata terhadap bobot buah per butir serta persentase buah Kelas A dan Kelas B. Greenhouse memberikan pengaruh terbaik terhadap jumlah daun, kadar klorofil indeks daun, dan persentase buah layak pasar. Adapun, volume penyiraman 100% ETc memberikan pengaruh terbaik terhadap bobot buah per butir serta persentase buah Kelas A dan Kelas B

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

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