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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Jurnal Ilmu Pertanian Agroland : Jurnal Ilmu-Ilmu Pertanian Jurnal Lahan Suboptimal Jurnal Hortikultura Jurnal Konstruksia AGRIVITA, Journal of Agricultural Science Kultivasi Jurnal Sains Teh dan Kina Jurnal Penelitian Pertanian Tanaman Pangan Rancang Bangun Journal of Tropical Crop Science jurnal Ilmu Pertanian (Agricultural Science) Al-Awqaf: Jurnal Wakaf dan Ekonomi Islam Media Pertanian Mabsya: Jurnal Manajemen Bisnis Syariah Jurnal Agronomika Jurnal Ilmiah Teknik Sipil (JIMATS)

Dwi Guntoro

Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, IPB University, Kampus IPB Darmaga, Bogor 16680

Author-ID : 271099

Religion Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Transportation

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Dominance of Cyperus kyllingia Endl. at guava orchard and its possible resistance to glyphosate Ferdinans, Ferdinans; Guntoro, Dwi; Sudradjat
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Weed resistance, indicated by increasing the level of herbicide for control, might arise due to the continuous use of similar herbicides in the long term without any herbicide rotation. The objective of this research was to evaluate the status of dominant weeds in a guava orchard to determine weed control strategies. The research was carried out from November 2020 to June 2021 at Agribusiness Technology Park IPB, Bogor. Vegetation analysis to define dominance was carried out at 4 blocks using the square method. In each block, five sampling points were randomly selected. Seeds of C. kyllingia were collected and planted as many as 25 seedlings in polybags. Glyphosate herbicide was applied onto C. kyllingia in 3 replications using 9 doses, i.e., 0 (D0), 60.75 (D1), 121.5 (D2), 243 (D3), 486 (D4), 972 (D5), 1944 (D6), 3888 (D7), and 7776 g ha-1 (D8). C. kyllingia mortality percentages were analyzed using linear regression to obtain LD50. The results showed that the dominant weed was C. kyllingia. Block 4 showed the highest significant LD50 value at 759.11 g ha-1 with a resistance index of 2.67 (reduced sensitivity). The presence of dominant C. kyllingia was identified only at block 4, indicating the dominance could correlate with increasing resistance of the particular weed. Keywords: doses; EPSPS; glyphosate; LD50; sedges; vegetation analysis

Allelopathic potential of apus bamboo leaf extract towards Asystasia gangetica and Cyperus rotundus Muntoyib, Junaidi; Alghifari, Ahmad Fadli; Roudho, Zahrotur; Oktavian, Aldi; Irawan, Riko; Guntoro, Dwi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 52 No. 2 (2024): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v52i2.53766

Weeds pose a significant challenge in agricultural activity by competing with cultivated crops for essential resources. The conventional use of chemical herbicides has demonstrated adverse impacts on the environment and human health, prompting a shift toward exploring bioherbicides. This study aimed to assess the inhibitory effects of Apus bamboo (Gigantochloa apus Kurz) leaf extract on the pre-germination phase of Brassica juncea, Asystasia gangetica, and Cyperus rotundus through bioassay and pot experiment. The research design employed a completely randomized design (CRD) with a single factor representing the concentrations of Apus bamboo leaf extract (% w/v). The concentrations tested were 0%, 5%, 10%, 15%, and 20%. Each concentration was replicated three times, resulting in 15 experimental units. Bioassay results revealed the capacity of Apus bamboo leaf extract to inhibit and disrupt B. juncea seed germination. The pot experiment results demonstrated the inhibitory effects of the extract, significantly affecting A. gangetica germination and population, A. gangetica total fresh and dry weight, and C. rotundus total dry weight. The extract exhibited strong inhibition, starting at a concentration of 15% for A. gangetica and 10% for C. rotundus. The findings suggested that Apus bamboo leaf extract holds significant potential as a bioherbicide. Keywords: allelochemical; bioherbicide; inhibitory effect; weed control Keywords: allelochemical; bioherbicide; inhibitory effect; weed control

Keefektifan Ekstrak Tetracera indica (L.) Merr. dengan berbagai Dosis sebagai Bioherbisida untuk Mengendalikan Gulma Eleusine indica dan Digitaria sanguinalis pada Pertanaman Brokoli Manalu, Pinondang; Guntoro, Dwi; Sugiyanta
Buletin Agrohorti Vol. 11 No. 3 (2023): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v11i3.48636

Penggunaan bioherbisida merupakan salah satu cara pengendalian gulma yang ramah lingkungan. Tetracera indica berpotensi sebagai bioherbisida karena mengandung flavonoid dan derivatnya. Tujuan penelitian mengetahui dosis ekstrak T. indica yang efektif untuk mengendalikan gulma pada skala lapangan yaitu pada tanaman brokoli. Penelitian dilaksanakan di Desa Batulawang, Kecamatan Cipanas, Kabupaten Cianjur, Jawa Barat, Laboratorium Ecotoxycology Waste and Bioagents, Departemen Agronomi dan Hortikultura, IPB pada Oktober 2018 hingga Mei 2019. Penelitian dilakukan dengan menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) dengan empat ulangan. Hasil pengamatan dianalisis menggunakan Uji F dengan uji lanjut Duncan Multiple Range Test (DMRT) pada taraf α=5%. Percobaan terdiri atas tujuh perlakuan yaitu ekstrak T. indica dengan dosis 20 kg ha-1, 40 kg ha-1, 60 kg ha-1, 80 kg ha-1, 100 kg ha-1, penyiangan manual, dan kontrol tanpa penyiangan. Hasil penelitian menunjukkan aplikasi ekstrak T. indica dapat mengendalikan gulma Eleusine indica. Aplikasi ekstrak T. indica tidak mempengaruhi tinggi tanaman, jumlah daun, dan fitotoksisitas pada tanaman brokoli. Aplikasi ekstrak T. indica juga mempengaruhi bobot panen secara nyata dibandingkan dengan kontrol, namun tidak mempengaruhi diameter dan bobot biomassa brokoli. Kata kunci: alelokimia, kompetisi, pratumbuh, rumput, sayuran

Potensi Ekstrak Daun Eucalyptus pellita F. Muell sebagai Bioherbisida Pascatumbuh Audina, Mia; Guntoro, Dwi
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.v12i1.51585

Penggunaan bioherbisida untuk mengendalikan gulma merupakan salah satu upaya mewujudkan pertanian berkelanjutan. Zat alelopati tumbuhan dapat dijadikan sebagai bioherbisida yang ramah lingkungan. Daun Eucalypthus pellita mengandung zat alelopati yang dapat digunakan sebagai bioherbisida. Penelitian laboratorium dilaksanakan untuk mengungkap potensi zat alelopati dari ekstrak daun E. pellita sebagai bioherbisida pasca tumbuh. Penelitian dilaksanakan pada bulan Februari hingga Juni 2016 di Laboratorium Ekotoksikologi Limbah dan Agen Hayati, Departemen Agronomi dan Hortikultura, Fakultas Pertanian dan Green House Kebun Percobaan Cikabayan Institut Pertanian Bogor. Percobaan disusun dalam Rancangan Kelompok Lengkap Teracak dengan satu faktor dan empat ulangan. Perlakuan terdiri atas lima konsentrasi yaitu 0 (kontrol), 100, 200, 300, dan 400 g L-1. Hasil percobaan menunjukkan bahwa ekstrak daun E. pellita dapat menghambat pertumbuhan tinggi, jumlah daun, fitotoksisitas dan meningkatkan persentase kerusakan pada gulma Asystasia gangetica dan Borreria alata pada konsentrasi 30% dan gulma Cyperus brevifolius pada konsentrasi 40%. Ekstrak daun E. pellita tidak mempengaruhi pertumbuhan spesies Eleusin indica. Kata kunci: alelopati, gulma daun lebar, pengendalian, rumput, ekstraksi air

Water and Crop Management Technologies: Physiological Response and Yield of Biofortified Rice Guntoro, Dwi; Ardie, Sintho Wahyuning; Diaguna, Ridwan; Hapsari, Dhika Prita; Sholiha, Nabila Fairuz; Putri, Prabawati Hyunita; Wahyudi, Wahyudi; Mursyalatiyus, Isnainy Dinul; Novianti, Shilfa; Purwandani, Junia Anindya; Anggraeni, Ratih Prajnaparamita; Rahardjo, Budi
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.13.01.241-253

Biofortified rice has emerged as one of the most promising strategies to enhance the micronutrient content of staple crops, offering a practical pathway to reduce stunting and improve nutritional security. In response to the challenges posed by climate change, water scarcity, and the need for more efficient production systems, this study examined the effects of water- and crop- management technologies on the physiological performance and yield of biofortified rice. A factorial randomized complete block design compared continuous flooding and alternate wetting and drying (AWD) irrigation with two crop management systems: conventional and a new technology. The AWD system enhanced photosynthesis without significantly affecting transpiration or stomatal conductance, indicating improved carbon assimilation and more efficient water use. Both AWD and the new technology individually increased dry grain yield per clump, while their combination produced heavier grains, higher productivity, greater 1000-grain weight, and improved water-use efficiency compared with other treatments. Although yield differences were not statistically significant, the consistent upward trends indicate synergistic potential when nutrient management is optimized. Overall, integrating AWD irrigation with new technology crop management can enhance resource efficiency in biofortified rice cultivation while maintaining yield stability under water- limited conditions.

Application of phosphorous fertilizer to increase the production of several parijoto (Medinilla speciosa Blume) accessions Indah Fatika Sari; Muhammad Ahmad Chozin; Dwi Guntoro
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 52 No. 3 (2024): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v52i3.58995

Parijoto fruit (Medinilla speciosa Blume) is a plant known as a medicinal plant in Indonesia. Parijoto fruit production is still low. Phosphorous (P) fertilization can enhance fruit production, but the optimal dosage for parijoto has yet to be determined. The research objective was to obtain the P fertilizer dosage to improve the production of several parijoto accessions. The research was conducted from January to June 2023 at Agribusiness and Technology Park IPB. The study used a split-plot randomized complete block design with four replications. The main plot's accession factor consisted of Bogor, Kudus, and Nganjuk. The fertilizer dosage per polybag, as the subplot, consisted of without P2O5 (P0), 1.8 g P2O5 (P1), 3.6 g P2O5 (P2), 5.4 g P2O5 (P3), 7.2 g P2O5 (P4), 9.0 g P2O5 (P5). The results showed that applying P fertilizer at 7.2 g P2O5 produced the highest fruit weight per plant for the Bogor and Nganjuk accessions. For the Kudus accession, it was at a fertilization dosage of 5.4 grams of P2O5. There was an interaction between accession and P dosage on fruit weight per plant. Keywords: dosage; fruit production; medical plant

Allelopathic potential of Asystasia gangetica: A study on growth and production of sweet corn Roelly Ainul Yaqin; Edi Santosa; Dwi Guntoro
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 52 No. 3 (2024): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v52i3.59421

Coromandel, or Chinese violet (Asystasia gangetica), is an invasive weed on many plantations in Indonesia, especially oil palm plantations. The A. gangetica is suspected to produce allelopathic compounds. However, the evaluation of the effect of A. gangetica on plant growth is still rare. The research objective was to evaluate the effect of allelopathic compounds of A. gangetica on the growth and production of sweet corn as a test plant. An experiment with a randomized complete block design and four replications was conducted from March to September 2022 at the Agribusiness and Technology Farm IPB. The treatment was the A. gangetica population consisted of 0 (control), 1, 2, 4, 8, and 16 individuals per pot. A. gangetica were initially planted from seeds, and the stems were slashed 5 cm above the soil surface two months after planting. One week after cutting, sweet corn seeds were planted and maintained until harvest 72 days after planting. The results showed that the allelopathic effect of A. gangetica was evident in growth of sweet corn plant. Increasing number of A. gangetica per pot increased the allelopathic effect. The most significant effect was from 16 populations per pot, which significantly reduced the growth of sweet corn height, stem diameter, leaf size (length and width), leaf number, and color. The particular population per pot also decreased sweet corn yield, i.e., weight per cob with and without husk, and cob diameter by 18.95%, 22.0%, and 19.37%, respectively. The level of sweetness decreased by 31.24% after sweet corn was planted in the remnant of 16 individuals A. gangetica per pot. Nevertheless, A. gangetica did not significantly affect leaf area index, cob length, and sweet corn biomass, including shoot and root dry weight at harvest. It would be interesting to evaluate the effect of A. gangetica in the field. Keywords: allelopathy; Brix; indole-3-carboxaldehyde; secondary metabolites; weeds

Potensi Ekstrak Daun Eucalyptus pellita untuk Mengendalikan Gulma pada Padi Sawah Nabila Sholiha; Andhika Bara Alhuda; Lailatul Bahri Ritonga; Dwi Guntoro
Buletin Agrohorti Vol. 14 No. 1 (2026): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.14.1.64414

Pengendalian gulma dengan menggunakan bioherbisida adalah upaya yang dilakukan untuk terciptanya pertanian yang berkelanjutan. Ekstrak daun Eucalyptus pellita yang digunakan sebagai bahan bioherbisida mengandung zat alelopati yang dapat dijadikan sebagai alternatif dalam pengendalian gulma. Penelitian menunjukkan bahwa spesies Eucalyptus pellita mengandung zat alelokimia, di diantaranya α-pinene, 1,8-cineol, dan pinocarveol trans yang dapat menghambat pertumbuhan gulma. Penelitian dilakukan pada bulan September hingga November 2024 di greenhouse Kebun Percobaan Leuwikopo, Fakultas Pertanian, Institut Pertanian Bogor. Percobaan menggunakan Rancangan Acak Lengkap dengan satu faktor perlakuan yang terdiri atas lima konsentrasi ekstrak daun E. pellita yaitu 0 (kontrol), 5%, 10%, 15%, 20%, 25% dan herbisida oxyfluorfen. Hasil percobaan menunjukkan bahwa ekstrak daun E. pellita 25% dapat menghambat dan mengurangi pertumbuhan gulma Ludwigia octovalvis dan Cyperus iria pada padi sawah. Kata kunci: bioherbisida, ekstrak daun Eucalyptus, gulma, oxyfluorfen

Efikasi Herbisida Penoksulam pada Budidaya Padi Sawah Pasang Surut untuk Intensifikasi Lahan Suboptimal Dwi Guntoro; Karlin Agustina; Yursida Yursida
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.2.2.2013.54

An experiment on herbicide Penoksulam 25.5 g/L was conducted in tidal land. The objectives of this experiment was to determine the effectiveness of herbicides in controlling weeds in lowland rice. The experiment was conducted from November 2012 to March 2013. Randomized block design (RBD) with 6 treatments and 4 replications was used. The treatments tested the herbicide Penoksulam 25.5 g/L dose of 0.60 L/ha, 0.75 L/ha, 0.94 L/ha, 1,125 L/ha, manual weeding and control. The experimental unit was a plots measuring 5 m x 5 m. The results showed that the application of penoksulam 25.5 g/LÂ could to control weeds of lowland rice. Dominance weeds species in tidal land were Fimbristylis littoralis, Ludwigia octovalvis and Cyperus Iria. Application of herbicide at doses 0.60 L/ha up to 1.125 L/ha caused only mild symptoms of phytotoxicity on rice. Herbicides could be used to increase low land rice production on effective dose 0.60 L/ha to 0.75 L/ha.

Kompetisi antara Ekotipe Echinochloa crus-galli pada Beberapa Tingkat Populasi dengan Padi Sawah (Competition of Echinochloa crus-galli Ecotypes at Several Populations Against Lowland Rice) Dwi Guntoro; Muhamad Achmad Chozin; Edi Santosa; Soekisman Tjitrosemito; Abdul Harris Burhan
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 3 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Echinochloa crus-galli is a major weed in paddy field that reduces rice yield. The objective of the research was to study the effect of E. crus-galli ecotypes and populations on rice growth and production. The research was conducted in a green house using split plot design with three replications. The main plot consisted of three E. crus-galli ecotypes i.e ecotype from Karawang, Cikampek, and Sukabumi. E. crus-galli population as sub plot consisted of 0, 1, 2, 3, and 4 E. crus-galli per pot. The results showed that ecotype of E. crus-galli affected plant height, number of tiller, and panicle density. The competitivenes against rice of E. crus-galli ecotype Cikampek was higher than that of ecotype Sukabumi and Karawang. Population E. crus-galli affected rice growth and production. Population of E. crus-galli 4/pot decreased spikelets weight about 48.0% and filled spikelets weight about 46.2%. Interaction of ecotype and population of E. crus-galli did not affect rice growth and production. Key words: competition, ecotype, E. crus-galli, population, weed.

Co-Authors , Erinnovita , Purwono , Sarwono ,, Usman ,, Yuniarti -, Bachtiar . Yusak Abdul Harris Burhan Achmad Yozar Perkasa, Achmad Yozar Achmad Zakaria Achmad Zakaria Ade Sumiahadi Adolf Pieter Lontoh, Adolf Pieter AHMAD JUNAEDI Alghifari, Ahmad Fadli Anas Dinurrohman Susila Andhika Bara Alhuda Andreas Kefi Andriyani, Yuni Anggraeni, Ratih Prajnaparamita Ani Kurniawati Anung Wahyudi Asrul Saputra Atang Sutandi Bachtiar Bachtiar Bambang S. Purwoko Bambang Sapta Purwoko Bilkis, Faras Gaitsa Budi Rahardjo Budi Tjahjono Bukhori, Anwar Desembardi, Faried Desyandri Desyandri Dewi, Sangrani Annisa Dhika Prita Hapsari Diaguna, Ridwan Dini Dwirestina Dita Nurul Latifah Dulbari, Dulbari Durotun Nafisa Dwiwanti Sulistyowati Dwiwanti Sulistyowati Edi Santosa Eko Sulistyono Eny Widajati Evar, Fitrawaty Orista Fahrul Rozy Pohan Faqih Udin Faried Desembardi Ferdinans, Ferdinans Fredinan Yulianda Harisman, Muhammad Ikhsan Hariyadi Herdhata Agusta Heri Syahrian Indah Fatika Sari Iqbal Iqbal Irawan, Riko Irdika Mansur Irianto, M. Yuli Jafarudin, Ahmad Januar Junia Anindya Purwandani, Junia Anindya Kanny, Putri Irene Kansa Dianti Putri Karlin Agustina Karlin Agustina Khalida, Rahmi Kukuh Nugraha Kusuma, Ayu Vandira Candra Lailatul Bahri Ritonga Luh Putu Ratna Sundari M A Chozin M. A. Chozin M. Khais Prayoga M.A. Chozin Mahfudz Mahfudz Manalu, Pinondang Maryati Sari Maya Melati Maya Melati Mia Audina, Mia Muhamad Achmad Chozin Muhamad Achmad Chozin Muhamad Ahmad Chozin Muhamad Syukur Muhammad Ahmad Chozin Muhammad Ahmad Chozin Muhammad Ridwan Muhammad Rusmin Muhammad Syukur Munif Ghulamahdi Muntoyib, Junaidi Mursyalatiyus, isnainy dinul Murtilaksono, dan Kukuh Mutaqin, Enjen Zaenal Nabila Sholiha Neshi Claudia Ramadhanti Norul Dewi Susanti Novianti, Shilfa Oktavian, Aldi Pasaribu, Pesta Maria Hotnauli Polansky, Seken Putri, Prabawati Hyunita Rianto, Dwi Fajar Rizqullah, Ramadaniarto Roelly Ainul Yaqin Roudho, Zahrotur Rusdi, Achmad Sarjono, Arif Sarjono, Arif Seken Polansky Sholiha, Nabila Fairuz Simangunsong, Yosua Pratama Sinaga, Intan Lorenza Sintho Wahyuning Ardie Soekisman Tjitrosemito Sofyan Zaman Sudradjat Sugeng Sudiatso Sugiyanta Sujinah Sujinah Sukmawati, Riska Sulistiani, Ade Irma Supijatno Suryana Suwarto Suwarto Suwitono, Bayu Tri Sugiarto, Anto Trisnani Yuda Fitri Trisnani Yuda Fitri Vitria Puspitasari Rahadi Wahyu Utomo Wahyudi Wahyudi Yonny Koesmaryono Yosua Pratama Simangunsong Yursida Yursida Yursida Yursida Yusak, . Zarwazi, Lalu Muhamad

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