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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia Jurnal Hortikultura Indonesia (JHI) Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Penelitian Hutan Tanaman JURNAL PERBENIHAN TANAMAN HUTAN Jurnal Hortikultura Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Jurnal Penelitian Tanaman Industri Perspektif : Review Penelitian Tanaman Industri E-Journal Widya Kesehatan dan Lingkungan JURNAL AGROTEKNOLOGI Jurnal Agro Journal of Tropical Biodiversity and Biotechnology Jurnal AGROSAINS dan TEKNOLOGI Jurnal Penelitian Pertanian Tanaman Pangan Sains Natural: Journal of Biology and Chemistry Journal of Tropical Crop Science AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian JERAMI Indonesian Journal of Crop Science Jurnal Penelitian Tanaman Industri (Littri) Perspektif, Review Penelitian Tanaman Industri Jurnal Pusat Inovasi Masyarakat

Mohamad Rahmad Suhartanto

Departemen Agronomi Dan Hortikultura, Fakultas Pertanian IPB Jl. Meranti Kampus IPB Darmaga, Bogor 16680

Author-ID : 355354

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Social Sciences

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PENINGKATAN PRODUKSI DAN MUTU RIMPANG BENIH JAHE PUTIH BESAR MELALUI APLIKASI ZAT PENGATUR TUMBUH The Production and Quality Improvement of Big White Ginger Seed Rhizomes by Plant Growth Regulator Aplication Devi Rusmin; Muhammad Rahmad Suhartanto; Satriyas Ilyas; Dyah - Manohara; Eny - Widajati
Perspektif Vol 19, No 1 (2020): Juni 2020
Publisher : Puslitbang Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/psp.v19n1.2020.29-40

Permasalahan utama dalam pengembangan tanaman jahe putih besar (JPB) adalah terbatasnya ketersediaan rimpang benih bermutu dalam jumlah yang mencukupi, pada waktu diperlukan oleh pengguna. Permasalahan tersebut antara lain disebabkan oleh produksi dan mutu rimpang benih yang masih rendah, serta bobot rimpang benih yang cepat menyusut dan mudah bertunassaat di penyimpanan. Penulisan ini bertujuan untuk menginformasikan kepada pengguna tentang karakter pola pertumbuhan, keseimbangan hormonal dan perubahan fisiologis yang menjadi faktor perhatian utama dalam peningkatan produksi dan mutu JPB melalui aplikasi zat pengatur tumbuh (ZPT).Peningkatan produksi dan mutu dapat dicapai dengan penggunaan rimpang benih bermutu yang diperoleh melalui: penentuan pola pertumbuhan, pengaturan keseimbangan hormon, baik secara alami (pengaturan iklim mikro), maupun dengan pemberianZPT selama proses produksi di lapangan dan di penyimpanan. Beberapa hasil penelitian membuktikan bahwa: (1) Pola pertumbuhan tajuk dan rimpang JPB selama pembentukan dan perkembangannya secara umum diklasifikasikan atas tiga fase yaitu: fase lambat 1–4 bulan setelah tanam (BST), cepat (> 4–6 BST), dan pemasakan (> 6 BST).Rimpang benih JPB umur 7 BST sudah dapat digunakan sebagai bahan tanaman. (2) Perbedaan lokasi tanam dan umur panen mempengaruhi pola keseimbangan hormon endogen tanaman (rasio hormonABA/GA dan ABA/sitokinin (Zeatin) dan mutu rimpang benih JPB. Rasio ABA/sitokinin (zeatin) yang lebih tinggi pada rimpang benih umur 7 BST (5,0) dan 8 BST (4,7) dibanding rimpang benih umur 9 BST (4,2) untuk rimpang benih asal Nagrak, sehingga mampu memicu dan mempertahankan dormansi sehingga benih JPB lebih tahan disimpan. (3) Periode dormansi benih rimpang JPB pecah setelah disimpan selama 2 bulan dan merupakan periode kritis atau periode yang tepat untuk aplikasi perlakuan penundaan pertunasan. (4) Aplikasi PBZ 400 ppm meningkatkan produksi JPB yang dinyatakan dalam bobot basah (22%) dan jumlah rimpang cabang (68%), dengan karakter rimpang: kecil, ruas pendek dan bernas, serta meningkatkan mutu dan daya simpan dibanding tanpa PBZ. (5) Aplikasi PBZ 1000 ppm, pada suhu ruang simpan 20 – 22 ºC, dapat menekan susut bobot sebesar 15% dibanding kontrol, setelah disimpan selama 4 bulan dan dapat menekan persentase rimpang bertunas sebesar 26% setelah 3 bulan disimpan.Permasalahan utama dalam pengembangan tanaman jahe putih besar (JPB) adalah terbatasnya ketersediaan rimpang benih bermutu dalam jumlah yang mencukupi, pada waktu diperlukan oleh pengguna. Permasalahan tersebut antara lain disebabkan oleh produksi dan mutu rimpang benih yang masih rendah, serta bobot rimpang benih yang cepat menyusut dan mudah bertunassaat di penyimpanan. Penulisan ini bertujuan untuk menginformasikan kepada pengguna tentang karakter pola pertumbuhan, keseimbangan hormonal dan perubahan fisiologis yang menjadi faktor perhatian utama dalam peningkatan produksi dan mutu JPB melalui aplikasi zat pengatur tumbuh (ZPT).Peningkatan produksi dan mutu dapat dicapai dengan penggunaan rimpang benih bermutu yang diperoleh melalui: penentuan pola pertumbuhan, pengaturan keseimbangan hormon, baik secara alami (pengaturan iklim mikro), maupun dengan pemberianZPT selama proses produksi di lapangan dan di penyimpanan. Beberapa hasil penelitian membuktikan bahwa: (1) Pola pertumbuhan tajuk dan rimpang JPB selama pembentukan dan perkembangannya secara umum diklasifikasikan atas tiga fase yaitu: fase lambat 1–4 bulan setelah tanam (BST), cepat (> 4–6 BST), dan pemasakan (> 6 BST).Rimpang benih JPB umur 7 BST sudah dapat digunakan sebagai bahan tanaman. (2) Perbedaan lokasi tanam dan umur panen mempengaruhi pola keseimbangan hormon endogen tanaman (rasio hormonABA/GA dan ABA/sitokinin (Zeatin) dan mutu rimpang benih JPB. Rasio ABA/sitokinin (zeatin) yang lebih tinggi pada rimpang benih umur 7 BST (5,0) dan 8 BST (4,7) dibanding rimpang benih umur 9 BST (4,2) untuk rimpang benih asal Nagrak, sehingga mampu memicu dan mempertahankan dormansi sehingga benih JPB lebih tahan disimpan. (3) Periode dormansi benih rimpang JPB pecah setelah disimpan selama 2 bulan dan merupakan periode kritis atau periode yang tepat untuk aplikasi perlakuan penundaan pertunasan. (4) Aplikasi PBZ 400 ppm meningkatkan produksi JPB yang dinyatakan dalam bobot basah (22%) dan jumlah rimpang cabang (68%), dengan karakter rimpang: kecil, ruas pendek dan bernas, serta meningkatkan mutu dan daya simpan dibanding tanpa PBZ. (5) Aplikasi PBZ 1000 ppm, pada suhu ruang simpan 20 – 22 ºC, dapat menekan susut bobot sebesar 15% dibanding kontrol, setelah disimpan selama 4 bulan dan dapat menekan persentase rimpang bertunas sebesar 26% setelah 3 bulan disimpan. ABSTRACT The main problems in the development of big white ginger plant (BWG) is the limited availability of quality seed rhizomes in sufficient quantities, at the time required by the user. Its caused by the production and quality of seed rhizomes are still low, and the seed rhizomes weight are rapidly shrinking and sprouting when in the storage. This Overview aims to inform users about the character of the pattern of growth, the balance of hormonal and physiological changes that are primarily focused on the production and seed quality improvement BWG through the application of plant growth regulator (PGR). Increased production and quality can be achieved by the use of quality seed rhizomes obtained through: determination of growth patterns, hormonal balance regulation, both naturally (microclimate regulation), as well as by application of growth regulators (ZPT) during the production process in the field and in storage. Some research results showed that: (1) The growth pattern of the canopy and GWB seed rhizomes during its formation and development is generally classified into three phases: slow phase 1-4 months after planting (MAP), fast (> 4-6 MAP), and maturty (> 6 BST). (2) Differences in planting location and harvest age affect the balance pattern of plant endogenous hormones (ABA / GA and ABA / cytokinin (zeatin) hormone ratios) and the BWG seed rhizomes quality. ABA / cytokinin ratios are higher in BWG seedlings aged 7 MAP (5.0) and 8 MAP (4.7) compared to 9 MAP (4.2) for seed rhizomes from Nagrak, so they are able to trigger and maintain dormancy so Its are more resistant to storage. (3) The dormancy period of BWG seed rhizomes break after stored for 2 months and this is a critical period or an appropriate period for sprouting inhibition treatment. (4) Application of PBZ 400 ppm increased production and quality of BWG seed rhizomes, namely: wet weight (22%) and number of branch rhizomes (68%) with rhizome characteristics: small, short and filled out internodes compared without PBZ. (5) Application of PBZ 1000 ppm, at a storage temperature of 20-22 ºC, can reduce weight loss by 15% compared to control, after stored for 4 months and also can reduce the sprouting percentage of rhizomes by 26% after stored for 3 months.

The BAP Responses to the Flowering and Production on variety of Red Onions Fatiani Manik; Endah Retno Palupi; Mohamad Rahmad Suhartanto
JERAMI : Indonesian Journal of Crop Science Vol 2 No 1 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

The use of quality seeds can increase the production of garlic. One indicator of increased yield can be seen from the size of cloves. The research aimed to know the growth and production of garlic from clove size and different seeds storage method. The experiment was conducted at Experimental farm Berastagi that began February-June 2018. The experiments was arranged in Randomized Complete Block Design with two factors. The first factor is the size of cloves, namely: 2.3 g / clove, 1.4 g / clove, 0.7 g / clove and the second factor is the storage method of separation of tubers and separation of cloves.. The observed variables include plant height, leaf number, leaf length, stem diameter, tuber weight, tuber diameter, number of cloves, and ability to grow. The results showed that storage method had significant effect on percentage of germination seed. Clove weight and storage method not significant effect on plant height, leaf number, leaf length, neck diamter, tuber weight, tuber diameter and number of cloves. Interaction occurs between treatments the neck diameter of garlic

Edukasi Good Agriculture Practice dan Perbanyakan Bibit dengan Stek Daun dalam Budi Daya Nanas (Ananas comosus L. Merr) di Desa Curugrendeng, Kecamatan Jalan Cagak, Kabupaten Subang Arodi Agustenta Sinulingga; Rahmad Suhartanto
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 1 (2020): Februari 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (860.952 KB)

Pineapple (Ananas comosus L. Merr) is a featured fruit commodity with the fourth largest production and second export in Indonesia. Jalan Cagak District is one of the centers of pineapple production but has decreased production by 38% from 2017 to 2018. The decline in production is allegedly due to low adoption of pineapple cultivation and the use of low quality seeds. One of the efforts to increase pineapple production through education activities on Production Operational Standard with the concept of Good Agriculture Practice and making a pineapple nursery demonstration plot using leaf cuttings as a pilot project for farmers. Education is provided in the form of outreach, technical guidance and socialization. The activity was conducted for pineapple farmers in Curugrendeng Village who were participants of the activity. Pineapple nursery demonstration plots using leaf cuttings planted on 12,5 m2 of land with a population of 1.961 planted cuttings.

Optimasi Produksi dan Mutu Benih Padi Varietas PBM UBB 1 dengan Bakteri Pelarut Fosfat dan Pupuk Fosfat: Optimasi Produksi dan Mutu Benih Padi Varietas PBM UBB 1 dengan Bakteri Pelarut Fosfat dan Pupuk Fosfat Kartika Kartika; M. Rahmad Suhartanto; Abdul Munif; Endah Retno Palupi; Satriyas Ilyas
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 6 No 2 (2022): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

One of the problems for phosphate fertilizing in ultisol soil is Al and Fe bounding and could be overcome by phosphate solubilizing bacteria activity.This study aimed to obtain the best dose of phosphate fertilizer with phosphate solubilizing bacteria for the production of upland rice seeds of the UBB1 PBM variety (Bangka Belitung University red rice 1) and its effect on seed quality. The research was carried out at the Research and Experimental Gardens – Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung, from August to December 2020. The design used was a split plot design, the main plot was phosphate solubilizing bacteria (treatment and control), and the subplots were fertilizers. phosphate (P1– quarter dose, P2– half dose, P2–three-quarter dose, P4– full dose). Seeds produced in the field were tested in the laboratory for viability and vigor. In the field, phosphate solubilizing bacteria (Burkholderia sp) can replace half the dose of phosphate fertilizer. This was indicated by the seed weight of plant-1 which did not differ between full dose + control and half dose + treatment. This fact was also identified in the viability and vigor of the seeds in laboratory testing. There was no significant difference in germination rate and vigor index between the two treatments. This finding shows that phosphate solubilizing bacteria can be applied for efficiency of phosphate fertilization and guaranteeing seed production and seed quality

Isolation and Characterization of Phosphate Solubilizing Bacteria from Upland Rice Cultivation Areas in Bangka Regency Kartika, Kartika; Munif, Abdul; Palupi, Endah Retno; Ilyas, Satriyas; Suhartanto, Muhamad Rahmad
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 1 (2024): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.84500

The availability of phosphorus (P) in ultisol acid soils presents a significant challenge due to its attachment to aluminum (Al) or iron (Fe) compounds. A potential solution to address this issue is the utilization of phosphate solubilizing bacteria (PSB). Therefore, this study aimed to analyze the potential of PSB originating from upland rice cultivation on ultisol soils. The bacterial isolates were obtained from soil samples taken from the rhizosphere area and root tissue of upland rice plants cultivated in Payabenua and Saing Villages, Bangka Regency. The pathogenicity testing encompassed hypersensitivity and hemolysis tests, while the P solubilization included the evaluation of the phosphate solubilizing index (PSI) and P dissolution. Subsequently, the selected isolates were subjected to phosphatase enzyme and organic acid content assessment. The results showed a total of 120 isolates, predominantly distributed in the Payabenua area and primarily consisting of endophytic bacteria. Among the six selected isolates, genus Burkholderia dominated four isolates, while the remaining isolates belonged to genus Serratia. Furthermore, in Burkholderia vietnamiensis, the solubility value of P in AlPO4 and Ca3(PO4)2 liquid media exhibited a range of 0.0013 to 0.0344% and 0.0008 to 0.1842%, respectively.

Pengaruh Suhu Ruang Simpan dan Perlakuan Pasca Penyimpanan terhadap Mutu dan Produktivitas Umbi Benih Bawang Merah (Allium cepa L. group Aggregatum) Alvita Sekar Sarjani; Endah Retno Palupi; Muhammad Rahmad Suhartanto; Y. Aris Purwanto
Jurnal Hortikultura Indonesia (JHI) Vol 9 No 2 (2018): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

ABSTRACTThe fluctuative price of shallot in Indonesia is mainly due to discontinuous supply. Shallot is usually planted three times a year. Lack of supply occurs during July to October. Therefore, the produce need to be stored to ensure its availability during off season, not only for consumption but also as seed bulb for the following planting season. The research was aimed to maintain the quality of seed bulbs during twelve weeks storage and to evaluate productivity of the seed bulbs after storage. Shallot seed bulbs of Bima Brebes was used for the research that was devided into two steps. The first step was arranged in nested design, in which seed bulb was stored at 0 0C, 5 0C, 10 0C and ambient temperature nested into storage period i.e 0, 3, 6, 9 and 12 weeks with four replications. The second step was evaluation of productivity of the seed bulbs that was arranged in nested design. The seed bulbs, after being stored at diferent condition, was subjected to different acclimatization treatments i.e. gradual increase of temperatures for 3 days and direct change to ambient temperature for one day, to devernalize the seed bulbs and replicated our times. The results showed that the dormant period of shallot seed bulbs lasted for 8 weeks after harvest (6 week after storage) as indicated by germination and vigor index of >90%. The termination of dormancy coincided with a rise in GA, IAA and cytokines as well as ABA. Storing the seed bulbs for 3 months in 5 0C could maintain its viability and vigor >90%, with 9.8% of total damage and 15.6% of weight loss. The seed bulbs grew normally and produced 30.2 g of bulb per plant. The percentage of flowering plant of gradually acclimatized seed bulbs previously stored at 5 0C (10.3%) was not significantly different from those directly acclimatized at ambient temperature (12%).Keywords: ABA, cytokinin, dormancy, GA, weight lossABSTRAKPenyebab utama fluktuasi harga bawang merah di pasar adalah ketersediaan umbi bawang merah yang tidak stabil. Di daerah sentra produksi, bawang merah ditanam tiga kali dalam setahun. Bulan Juli sampai Oktober adalah periode hasil panen rendah. Penyimpanan umbi merupakan salah satu upaya untuk menjamin ketersediaannya di luar musim panen, tidak hanya untuk konsumsi tetapi juga memastikan ketersediaan umbi sebagai benih pada musim tanam selanjutnya. Penelitian ini bertujuan mempertahankan kualitas benih umbi selama 12 minggu disimpan dan mengevaluasi produktivitasnya setelah penyimpanan. Bahan yang digunakan adalah benih umbi bawang merah varietas Bima Brebes. Penelitian dibagi dalam dua tahap. Tahap pertama adalah penyimpanan benih umbi dirancang dalam nested design yang mana benih umbi disimpan pada suhu 0 0C, 5 0C, 10 0C dan suhu ruang tersarang pada waktu penyimpanan yang terdiri atas 0, 3, 6, 9 dan 12 minggu dan diulang empat kali. Tahap kedua adalah evaluasi produktivitas benih umbi setelah disimpan dirancang dalam nested design. Umbi yang telah disimpan (12 minggu) pada masing-masing kondisi simpan diberi perlakuan aklimatisasi, yaitu suhu berjenjang (3 hari) dan suhu ruang langsung (1 hari), untuk mencegah pembungaan. Setiap perlakuan diulang sebanyak empat kali (ulangan tersarang pada aklimatisasi). Hasil penelitian menunjukkan bahwa benih umbi mengalami dormansi sampai 8 minggu setelah panen (6 minggu setelah simpan), ditandai dengan daya berkecambah dan indeks vigor di atas 90%. Berakhirnya dormansi benih umbi bersamaan dengan peningkatan kandungan giberelin, auksin, dan sitokinin mengimbangi peningkatan asam absisat. Penyimpanan benih selama 12 minggu pada suhu 5 0C dapat mempertahankan viabilitas dan vigor di atas 90% dengan kerusakan (umbi bertunas, chilling injury, hampa atau busuk) sebesar 9.8% dan susut bobot sebesar 15.6%. Setelah disimpan selama 12 minggu benih dapat tumbuh normal dan memproduksi 30.2 g umbi per tanaman. Aklimatisasi suhu berjenjang umbi benih yang telah disimpan pada suhu 5 0C menghasilkan persentase pembungaan (10.3%) yang tidak berbeda nyata dengan aklimatisasi suhu ruang langsung (12%).Kata kunci: ABA, dormansi, GA, sitokinin, susut bobot

The Effect of Fruit Maturity Stage on Crown Leaf Bud Cutting of Pineapple (Ananas comosus (L.) Merr) Cv. Smooth Cayenne Husna Fatima Eprilian; Mohamad Rahmad Suhartanto; Endah Retno Palupi
Jurnal Hortikultura Indonesia (JHI) Vol 10 No 2 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Metode pembibitan nanas yang dapat dikembangkan untuk meningkatkan jumlah bibit yang dapat dihasilkan adalah setek basal daun mahkota. Tingkat kematangan buah diduga berpengaruh terhadap tingkat keberhasilan setek basal daun. Penelitian ini bertujuan untuk mendapatkan informasi mengenai pengaruh tingkat kematangan buah pada saat pengambilan bahan setek untuk produksi bibit asal setek basal daun mahkota pada nanas cv. Smooth Cayenne. Percobaan menggunakan RKLT satu faktor, yaitu tingkat kematangan dengan empat taraf perlakuan: tingkat kematangan 1 (K1) : semua mata berwarna hijau; kematangan 2 (K2) : mata buah yang berwarna kuning < 20%; kematangan 3 (K3) : mata buah yang berwarna kuning 40-55%; kematangan 4 (K4): mata buah yang berwarna kuning >90%; tetapi yang berwarna jingga kemerahan <20%. Hasil penelitian menunjukkan kandungan auksin dan sitokinin endogen tidak berbeda pada semua tingkat kematangan, namun Nisbah C/N K3 dan K4 menunjukkan hasil lebih tinggi. Pada semua tingkat kematangan, terbentuknya tunas maksimum terjadi pada 4-6 MST. Tingkat kematangan buah terbaik untuk produksi bibit nanas dengan setek basal daun mahkota adalah K4 (mata buah yang berwarna kuning >90%, tetapi yang berwarna jingga kemerahan <20%). K4 memiliki kecenderunguan menghasilkan setek hidup, bertunas, dan berakar lebih tinggi. K4 menghasilkan bobot kering tunas tertinggi dan memenuhi standar bibit sertifikasi lebih cepat (52 MST). Kata kunci: buah tropis, mata tunas dorman, perbanyakan cepat, split crown

Pendampingan dan Transfer Teknologi Pengembangan Padi Sawah di Desa Pangelak, Kalimantan Selatan Eka Maulidiya, Sherly; Junaedi, Ahmad; Purwono, Purwono; Suhartanto, Mohamad Rahmad; Wiyono, Suryo; Khairani, Khairani; Cahyani, Gesa Nur; Fitriansyah, Muhammad Ramdhani; Putri, Lystiana Dewi; Fadillah, Arvin Muhammad
Jurnal Pusat Inovasi Masyarakat Vol. 6 No. 2 (2024): Oktober 2024
Publisher : Direktorat Pengembangan Masyarakat Agromaritim, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpim.6.2.85-99

The agricultural technology transfer and mentoring program in Pangelak Village, South Kalimantan, aims to improve the efficiency and productivity of paddy rice cultivation through the application of appropriate technology and environmentally friendly cultivation practices. This activity involved 4 active IPB students, 1 person as project manager, 1 person as supervisor, and 4 IPB lecturers. The mentoring implementation method consists of preparation, program implementation, and evaluation. The program implementation stage begins with preparation, which includes field surveys and FGDs to understand the needs and conditions of the community. The next stage is assistance and technology transfer, which includes assistance in paddy rice cultivation, bioimmunization of seeds, and making organic plant ingredients as alternative fertilizers. The evaluation stage includes conducting interviews and discussions with farmers after the mentoring and technology transfer activities. The creation of IPB 3S demonstration plots was carried out in the context of innovation adoption through training and direct practice to farmers on more efficient cultivation techniques and the use of organic fertilizers. The mentoring program can increase knowledge and skills on effective and efficient cultivation techniques to farmers, introduce the latest technologies and innovations in rice cultivation, increase the productivity of paddy rice and the welfare of farmers.

Sortasi Ukuran Benih Jagung Manis Varietas Arinta IPB dan Verona IPB untuk Meningkatkan Mutu Fisiologis Alfarabi, Emir Aqsha; Diaguna, Ridwan; Suhartanto, Mohamad Rahmad
Jurnal Agrosains dan Teknologi Vol 9 No 2 (2024)
Publisher : Fakultas Pertanian - UMJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jat.9.2.%p

Ukuran benih berkaitan dengan mutu fisiologis yang dihasilkan. Penelitian ini bertujuan untuk optimalisasi ukuran benih jagung manis varietas Arinta IPB dan Verona IPB untuk meningkatkan mutu fisiologis. Penelitian dilaksanakan dari November 2023 hingga April 2024 di Seed Center KP Leuwikopo IPB dan Laboratorium Penyimpanan dan Pengujian Mutu Benih, IPB. Penelitian menggunakan Rancangan Acak Lengkap faktor tunggal dengan empat ulangan. Ukuran benih dibagi menjadi empat taraf: besar, sedang, kecil, dan campur. Hasil penelitian menunjukkan bahwa benih berukuran besar menghasilkan mutu fisiologis tertinggi dibanding ukuran lain. Viabilitas awal benih kedua varietas lebih dari 80,0%. Varietas Verona IPB memiliki bobot 1000 butir lebih tinggi dibanding Arinta IPB. Benih berukuran besar memiliki bobot 1000 butir lebih tinggi dibanding benih campuran, sementara benih sedang dan kecil memiliki bobot lebih rendah. Proporsi tertinggi benih kedua varietas adalah ukuran sedang, yaitu Arinta IPB 70,3% dan Verona IPB 57,1%. Viabilitas dan vigor benih jagung manis kedua varietas dapat ditingkatkan dengan mengeliminasi benih kecil. Pemilahan benih untuk meningkatkan viabilitas dan vigor benih jagung manis varietas Verona IPB perlu diperhatikan karena proporsi benih kecil cukup tinggi, yaitu 27,0%.

Optimization of The Success Rate of The Epicotyl Grafting Method in Nutmeg with Different Rootstock Stages and Scion Leaf Numbers Suhartanto, Mohamad Rahmad; Ruhnayat, Agus; Qadir, Abdul; Rostiana, Otih
Sains Natural: Journal of Biology and Chemistry Vol. 15 No. 2 (2025): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v15i2.790

The availability of seeds with known sex types is one of the obstacles in nutmeg cultivation. Epicotyl grafting using rootstocks aged 20–30 days is one of the solutions to overcome this issue. The objective of this study is to determine the optimal stage/age of rootstocks and the number of leaves of the scion to improve the success rate of nutmeg through epicotyl grafting. The experimental design used is a Randomized Block Design (RBD) with factorial pattern, repeated three times. The first factor is the stage of rootstock age, categorized as: 1 month (without leaves), 2 months (2 leaves), 3 months (3 leaves), and 4 months (4 leaves). The second factor is the number of leaves on the scion : 2 leaves cut in half, 2 leaves, and 3 leaves. Variables observation i.e. : a) C/N ratio in the rootstock and scion before grafting, b) plant morphology (Number of leaves, shoot length, shoot diameter, number of branches, and plant height.), and c) plant physiology (grafting success rate, graft union length, photosynthesis rate, and leaf chlorophyll content). The results showed that all rootstock stages and scion leaf number could be used for nutmeg grafting, with a 67-100% success rate. The best recommendation treatments are rootstocks with two leaves grafted to scions with two leaves, and rootstocks with four leaves grafted to scions with three leaves.

Co-Authors ABDUL MUNIF Abdul Munif Abdul Qadir AGUS PURWANTARA Agus Purwantara Agus Purwantara Agus Ruhnayat AHMAD JUNAEDI Ahmad Zamzami Akhiruddin Maddu Alfarabi, Emir Aqsha Alvita Sekar Sarjani Ani Kurniawati Ari Wahyuni Arodi Agustenta Sinulingga Astryani Rosyad Aulia Hasan Widjaya Baharudin Baharudin ; BAHARUDIN BAHARUDIN Cahyani, Gesa Nur Cintaning, Anis Bias Dede J. Sudrajat Dede J. Sudrajat DEVI RUSMIN Diaguna, Ridwan Dian Latifah Dirgahani Putri Dyah - Manohara Edi Santosa Eka Maulidiya, Sherly Endah R. Palupi Endah Retno Palupi Endang Gati Lestari ENDANG MURNIATI Eny Widajati Evayusvita Rustam Evayusvita Rustam Fadillah, Arvin Muhammad Fatiani Manik Fatiani Manik Firdaus, Jonni Fitri Viva Yuningsih, Aida Fitriansyah, Muhammad Ramdhani Heri Ahmadi Heru Setiawan Heru Setiawan Husna Fatima Eprilian Karmaita, Yummama Kartika Kartika Kartika Kartika Ketty Suketi Khairani Khairani Lilih Naelun Najah Luluk Prihastuti Ekowahyuni Luluk Prihastuti Ekowahyuni Manohara, Dyah - Maryati Sari Mubarak, Farahdina Muhamad Noor Azizu, Muhamad Noor Muhamad Syukur Muhammad Abdul Rahman Hakim Muhammad Rofiq Nabila, Diah Ayu Nafisah Nafisah Neti, Natali NURUL HIDAYAH Nurul Hidayah Nurul Rostami Dewi Nurul Rostami Dewi Otih Rostiana Palupi, Endah R. Pipin Apriani Purwono Purwono, Purwono Putri Mian Hairani Putri, Lystiana Dewi Qadir, Abdul Risa Wentasari Roedhy Poerwanto Rokhani Hasbullah RUSMIN, DEVI Satriyas Ilyas Setyowati, Nur Farida Sinaga, Tamara Rudang Astari SRIANI SUJIPRIHATI Sriani Sujiprihati Suci Rahayu Supramana Surjono Hadi Sutjahjo Suryo Wiyono Suwarto Suwarto Syarifa Mustika Syarifa Mustika Taisa, Rianida Tatiek K. Suharsi Tatiek K. Suharsi Tatiek Kartika Suharsi Usman Ahmad Widodo Widodo Zulfa Fauziyyah Taini

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