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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Hortikultura Indonesia (JHI) Jurnal Manajemen dan Agribisnis Pastura; Journal Of Tropical Forage Science Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Jurnal Dinamis Jurnal Keteknikan Pertanian Jurnal Hortikultura Jurnal AgroBiogen Jurnal Penelitian Tanaman Industri Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Jurnal Dimensi Pratama Teknik Sipil Jurnal Ilmu Ternak Veteriner Jurnal Agro Jurnal Manajemen Sumber Daya Perairan Kultivasi Animal Production : Indonesian Journal of Animal Production The Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Jurnal Kimia Terapan Indonesia Mesin Jurnal Teknologi & Industri Hasil Pertanian Journal of Tropical Crop Science EMBRIO : Jurnal Kebidanan EQIEN - JURNAL EKONOMI DAN BISNIS JURNAL ANSIRU PAI : Jurnal Pengembangan Profesi Guru Pendidikan Agama Islam Jurnal Agrium Jurnal Manajemen Bisnis dan Kewirausahaan Jurnal Penelitian Tanaman Industri (Littri) Jurnal Ilmu Manajemen Profitability INVOICE : JURNAL ILMU AKUNTANSI Proceeding International Seminar of Islamic Studies

M A Chozin

Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor

Author-ID : 247339

Religion Agriculture, Biological Sciences & Forestry Arts Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Veterinary Other

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The Effects of Cutting Heights and Intervals of Defoliation on Productivity and Nutrient Content of Brachiaria humidicola(Rendle) Schweick Anis, Selvie Diana; Chozin, Muhamad Ahmad; Hardjosoewignyo, Soedarmadi; Ghulamahdi, Munif; Sudradjat, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 3 (2011): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The productivity of forage is strongly influenced by cutting height and interval of defoliation. Experiment was conducted at the Research Institute for Industrial Plants and Other Palm (BALITKA) Manado since June 2008 until April 2009. The objective of the experiment was to find out the effects of intensity and intervals of defoliation on dry weight production and the quality of nutrients. The experiment was arranged in factorial RCBD. The intensity of defoliation was based on cutting height, i.e. 5, 10, 15 cm, whereas the intervals of defoliation were 30, 45, 60 day and 456.54 Degree Days (DD). The data of dry weight production, leaf stem ratio, nutrient quality were collected. The results showed that there were significant effects of treatments on all parameters. Productivity of B. humidicolai terms of high dry weight yield, high leaf stem ratio and crude protein, low crude fiber and acid detergent fiber (ADF) content were found in the interaction of intensity 10 cm with the interval of defoliation among the vegetative development stage of 30 and 45 days, as well as the interval of defoliation based on heat unit accumulation of 456.54 DD. The research implies that a cutting height at 10 cm and interval of defoliation as mentioned above is ideal for B. humidicola. Utilization of growing degree days (GDD) to determine the appropriate time for defoliation is considerable under this experiment.Keywords: B. humidicola, defoliation, forage, nutrient, productivity

Pengaruh Konsentrasi Besi dalam Larutan Hara terhadap Gejala Keracunan Besi dan Pertumbuhan Tanaman Padi Noor, Aidi; Lubis, Iskandar; Ghulamahdi, Munif; Chozin, Muhammad Achmad; Anwar, Khairil; Wirnas, Desta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 40 No. 2 (2012): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Iron (Fe) toxicity is a major constraint in rice production that decreases yield due to high level of soluble Fe. The aims of this experiement were to study the effect of particular Fe concentrations in nutrient solution on rice growth, and to determine Fe concentration in nutrient solution that caused light, moderate, and severe Fe toxiciy symptom. The experiment was conducted in a greenhouse, Bogor Agricultural University from May to July 2010. A randomized block design with two factors and three replications were used in this study. The first factor was Fe concentration in the medium solution (2, 50, 100, 200, 400, 600 ppm Fe), and second factor was rice genotypes (IR64, Margasari). The results showed the higher Fe concentration in the solution resulted in higher scores of iron toxicity symptoms, higher Fe levels in the plant, and caused stunted growth of rice plants. Levels of Fe in a solution of ≥ 200 ppm Fe inhibited plant growth. Iron toxicity symptom in Margasari was lower than the IR64 varieties, especially at concentrations of 200 and 400 ppm. According to the regression equation Y = 0.022X+ 1849, Fe concentration in the solution which caused light Fe toxicity symptom (score ≤ 3) was ≤ 52 ppm Fe, moderate (score = 5) was 143 ppm Fe, heavy (score = 7) was 234 ppm Fe, and severe (score ≥ 9) was ≥ 325 ppm Fe. Keywords: iron toxicity symptoms, iron concentration, rice

Perbandingan Arachis pintoi dengan Jenis Tanaman Penutup Tanah Lain sebagai Biomulsa di Pertanaman Kelapa Sawit Belum Menghasilkan ,, Yuniarti; Chozin, M. Achmad; Guntoro, Dwi; Murtilaksono, dan Kukuh
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 46 No. 2 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Cover crops have the same role as biomulches to maintain soil moisture and reduce the evaporation of soil water. The objective of research was to compare Arachis pintoi versus other cover crops as biomulch in immature oil palm plantations. The study was conducted in the Field of Education and Research Palm IPB-Cargill, Jonggol, Bogor starting in December 2014 until May 2015. The experiment was designed according to a randomized block design with four replications. The treatments were cover crop species (biomulch) i.e. no biomulch/natural vegetation, Arachis pintoi Karp. & Greg., Centrosema pubescens Benth., Calopogonium mucunoides L. and Pueraria javanica Benth. Planting materials used were cutings of A. pintoi and seed of C. pubescens, C. mucunoides and P. javanica. The planting material were planted in plots 9 m x 3 m and plot for biomass 1 m x 1 m. The results showed that the A. pintoi was not significantly different from other biomulches for ground covering and capability to hold water. Soil water content in the treatment of A. pintoi biomulch was not different from other biomulch treatments.

Identifikasi Spesies Tanaman Penutup Tanah pada Perkebunan Kelapa Sawit Menghasilkan Suryana; Chozin, Muhamad Achmad; Guntoro, Dwi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 47 No. 3 (2019): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The study aimed to identify the types of plants suitable for cover crops on mature oil palm. The study was started by conducting microclimate measurements and vegetation analysis in a mature oil palm ecosystem with plant subjects consisting of 5 years and 10 years old plants. The measurements and analysis were carried out in August 2018 to select suitable plant samples. The research was continued by planting 6 selected plants under the shade of 0, 25, 50, and 75% using nested design to determine the responses of plant samples to various levels of shading from September 2018 to April 2019 at the Cikaawang IPB Experimental Field. The results of microclimate analysis in 5-year-old mature oil palm in Jonggol shows the light intensity of 1094.7 lux with a temperature of 28.5 oC and humidity of 68.76%, while a 10-year-old mature oil palm in Cikabayan had a light intensity of 997.8 lux with a temperature of 32.5 oC and humidity of 87.25%. The species of Asystasia gangentica, Axonopus compressus, Borreria alata, and Ottochloa nodosa were the dominant plant vegetation in two ecosystems. Asystasia gangentica was able to grow and optimally cover the area at all shading levels, while Axonopus compressus, Borreria alata, and Ottochloa nodosa can only grow and cover the area optimally at 0% and 25% and 50% shade, respectively. Keywords: micro climate, response of plant species, vegetation analysis

Pengaruh Naungan terhadap Pertumbuhan dan Produksi Beberapa Genotipe Cabai Rawit (Capsicum annuum L.) Alhidayah, Destya; Chozin, Muhamad Achmad; Ritonga, Arya Widura
Buletin Agrohorti Vol. 12 No. 1 (2024): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v12i1.53527

Percobaan ini dilakukan untuk melihat pengaruh naungan, genotipe dan interaksi antara genotipe dengan naungan terhadap pertumbuhan dan produksi beberapa genotipe cabai rawit, selain itu untuk mengkonfirmasi kembali tingkat toleransi naungan dari beberapa genotipe cabai rawit. Percobaan ini dilaksanakan di Kebun Percobaan Leuwikopo, Dramaga, Bogor, Jawa Barat pada bulan November 2021 sampai bulan Maret 2022. Percobaan menggunakan rancangan kelompok lengkap teracak (RKLT) pola tersarang, dengan petak utama naungan dan anak petak berupa 3 genotipe cabai rawit. Hasil penelitian menunjukkan bahwa naungan paranet 55% menyebabkan peningkatan tinggi tanaman, tinggi dikotomus, lebar tajuk, lebar daun dan panjang daun. Naungan paranet 55% juga menyebabkan penurunan bobot buah per tanaman, produktivitas, fruitset, jumlah bunga dan jumlah buah pada tanaman cabai rawit yang diamati. Genotipe G4 (F8.145291-14-9-3-12-1) dan G7 (Genie) memiliki bobot buah per tanaman, produktivitas, umur berbunga, fruitset, tinggi tanaman, tinggi dikotomus dan ukuran daun yang lebih tinggi dibandingkan dengan genotipe G3 (F10.160291-3-12-5-51-1-1- 2-2-1). Interaksi antara genotipe dan tingkat naungan terdapat pada karakter panjang buah, diameter buah dan panjang daun. Genotipe cabai rawit G4 dan G7 termasuk genotipe cabai rawit yang moderat toleran naungan, sedangkan genotipe cabai rawit G3 termasuk genotipe cabai yang peka naungan berdasarkan produksi relatifnya. Genotipe G4 dan G7 memiliki konsistensi yang sama dengan penelitian sebelumnya, dimana genotipe G4 memiliki tingkat toleransi yang lebih tinggi terhadap naungan dibandingkan dengan genotipe G3 dan G7 tetap menjadi genotipe yang moderat toleran naungan. Kata kunci: Intensitas cahaya rendah, fruitset, produktivitas

Aksi Gen Epistasis Duplikat pada Karakter Terkait Toleransi Naungan di Tanaman Tomat Ritonga, Arya W; Syukur, Muhamad; Chozin, Muhammad Achmad; Maharijaya, Awang; Sobir, Sobir
Buletin Agrohorti Vol. 12 No. 2 (2024): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v12i2.56491

Informasi tentang karakter seleksi dan pewarisan sifatnya sangat penting bagi program pemuliaan tanaman. Penelitian ini bertujuan untuk memperoleh karakter seleksi dan informasi pewarisan sifatnya terhadap cekaman naungan pada tanaman tomat. Populasi persilangan Biparental SSH3 x 4979 (tetua, F1, backcross dan F2) ditanam pada kondisi tanpa naungan (N0) dan kondisi cekaman naungan paranet 50% (N50) di Kebun Percobaan Pusat Kajian Hortikultura Tropika – Institut Pertanian Bogor, Pasir Kuda, Bogor, Jawa Barat, Indonesia. Hasil penelitian memperlihatkan bahwa karakter kehijauan daun, fruit set, jumlah buah dan bobot buah per tanaman merupakan karakter seleksi toleran naungan pada tanaman tomat. Terdapat aksi gen dominan dan epistasis duplikat pada karakter-karakter tersebut baik pada kondisi normal maupun kondisi cekaman naungan kecuali karakter fruit set pada kondisi tanpa naungan. Dominansi pada karakter-karakter tersebut bersifat over dominan pada kondisi tanpa naungan, namun dominan parsial pada kondisi cekaman naungan. Ragam aditif lebih berperan dibandingkan ragam non aditif pada karakter kehijauan daun, fruit set, jumlah dan bobot buah per tanaman pada kondisi normal namun sebaliknya dimana ragam non aditif lebih berperan dibandingkan ragam aditif pada karakter-karakter tersebut saat kondisi cekaman naungan. Seleksi pada generasi awal seperti generasi F2 dapat efektif dilakukan pada karakter-karakter tersebut pada kondisi tanpa naungan, namun seleksi pada kondisi cekaman naungan terhadap karakter-karakter tersebut lebih baik dilakukan pada generasi lanjut. Kata kunci: agroforestri, berkelanjutan, tumpang sari, varietas unggul

Effect of Shape and Size of Purple Nutsedge (Cyperus rotundus L.) Tuber Bioherbicide Granules on the Germination of Weed and Crop Seeds Sahara, Olyvia Fashatus; Chozin, Muhamad Achmad; Hapsari, Dhika Prita
Journal of Tropical Crop Science Vol. 13 No. 01 (2026): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.13.01.187-198

The use of synthetic herbicides is an effective way to control weeds, but their widespread use has negative environmental impacts. A bioherbicide made from purple nutsedge tubers can be an alternative for weed control. Purple nutsedge’s tuber contain allelopathy compounds that can inhibit the growth of other plants (weeds). This study aims to evaluate the response of various shapes and sizes of bioherbicide granules made from purple nutsedge’s tuber in suppressing the germination of weed seeds and crop seeds. The experiment used a completely randomized design one factor and eleven treatments: control without herbicide treatment, synthetic herbicide active ingredient oxyfluorfen 240 g/L, purple nutsedge’s tuber powder bioherbicide without carrier, very small round granule bioherbicide, small round granule, medium round granule, large round granule, very small cylindrical granule, small cylindrical granule, medium cylindrical granule, and large cylindrical granule. Each treatment was tested on four species: Bidens pilosa and Cynodon dactylon (weeds), cucumber, and rice (crops). The experimental results showed that the application of purple nutsedge’s tuber-based bioherbicides exerts a noticeable influence on several germination parameters. The smaller the bioherbicide granule, the higher the germination inhibition rate. Very small, round-shaped granule bioherbicides showed greater effectiveness in suppressing seed sprout percentage, reducing growth rate, increasing the percentage of abnormal sprouts, and inhibiting plumula and radicle growth.

Co-Authors , Handoko ,, Yuniarti . Sugiyanta, . A Ali Abdul Harris Burhan Abdullah Abdullah Ade Sumiahadi, Ade AHMAD JUNAEDI Ahmad Junaidi Aidi Noor Aji Hermawan Aldi M Alfima Rahasti Alhidayah, Destya Anas Miftah Fauzi Andhini, Martika Ani Kurniawati Anita Ristianingrum Ansyarif Khalid Artha Regina Tambunan Asdi Asdi Asep Nursangaji Asih Sukowati Astuti DA Astuti DA Awang Maharijaya Axel Anderson Bambang Pramudya Bambang S. Purwoko Bambang S. Purwoko Budi Tjahjono Bustami Syam Chairannisa, Dyana D.A. Astuti Darmawansyah Darmawansyah DARUSMAN, L.K. Darwis AN Darwis AN Desta Wirnas dewi novita Dewi, Sangrani Annisa Dhika Prita Hapsari Diah karyawati Didy Sopandie Dina Harsono Dini Dwirestina Dwi Guntoro Dwiwanti Sulistyowati E. Namaken Sembiring Edi Santosa Edy Yusmin Eka Intan Kumala Putri Eka Wardiana Eko Sulistyono EVA OKTAVIDIATI, EVA Evar, Fitrawaty Orista Faradesi Ardialisa Femila Rezkiyanti Fibra Nurainy Fred Rumawas Gerson Hans Maure GHULAMAHDI, M. h sanusi H. Soedarmadi HAJRIAL ASWIDINNOOR Hardjosoewignyo, Soedarmadi Hartami Dewi Hemawati Hemawati Hendrik Hendrik Herman Wafom Tubur Hesty Juniar Rukmin Hiroshi Ehara Hongarta, Reynaldo I. Hanarida I. S. Dewi Ida H. Somantri Indriani Santoso Iqbal . Irdika Mansur Irianto, M. Yuli Irwan Abdullah Iskandar Lubis ISMAIL SALEH Iswari S. Dewi Jalali Iqram Kanny, Putri Irene Karti PDMH Karti PDMH Khairil Anwar Krishna Surya Buana Kusuma, Ayu Vandira Candra KWANG HO KIM Laila Nur Atika Luki Abdullah M Zardan Araby M. Ghulamahdi Machfud Machfud Maisura Maisura Maria Erna Marmawi R . Maya Melati Mochammad Afifuddin Moeljarno Djojomartono Moh. Amri Arsyid Muftil Badri Muhamad Kurniadi Muhamad Syukur Muhammad Syaifuk Ar Rosyid Munawir, Fathurrahman Aziz Munif Ghulamahdi Murtilaksono, dan Kukuh P.M.D.H Karti, P.M.D.H Pangerang, Utama K. Patandean, Brayen Perwita, Atikah Dyah Priatna Sasmita Purwono Purwono Putri Sakura Raisa Baharuddin RANI FARIDA Ratih Marina Kurniaty Rinaldo, Ruswandi Ritonga, Arya W Ritonga, Arya Widura Rosyid, Muhammad Syaiful Ar S. Sujiprihati Sahara, Olyvia Fashatus Sahrullah Sahrullah Selvie D. Anis Selvie Diana Anis Sigit Prabawa Sobir Sobir SOEKISMAN TJITROSEMITO Sofiyah, Maratus Sofyan Zaman Sri Mulatsih Sudirman Yahya Sudradjat , Sudradjat Sudradjat Sugiyanta Supijatno Suryana Sutikno Sutikno Suwarto Suwarto Suwitono, Bayu Syamsiar, Syamsiar Tanto Pratondo Utomo Tineke Mandang Trikoesoemaningtyas Ulinnuha, Zulfa urai salam Vivid Violin Wahju Qamara Mugnisyah Wenny Rahmawati WIJAYANTO, N. Yasidi, Farid Yudi Febrianto Yudi Febrianto Yuline . Yundari, Yundari Zarwazi, Lalu Muhamad

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