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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Jurnal Ilmu Pertanian BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils Journal of Politic and Government Studies Jurnal Sumberdaya Lahan Buletin Palawija Jurnal Teknologi Informasi dan Ilmu Komputer AGRIVITA, Journal of Agricultural Science Buletin Kebun Raya Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Penelitian Karet JOIN (Jurnal Online Informatika) JOIV : International Journal on Informatics Visualization Jurnal AGROSAINS dan TEKNOLOGI Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Journal of Tropical Crop Science Journal of Tropical Horticulture JURNAL AGRONIDA Jurnal Kelautan Nasional Molekul: Jurnal Ilmiah Kimia Jurnal Jamu Indonesia Agroekoteknologi Tropika Lembab Indonesian Journal of Electrical Engineering and Computer Science Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura Buletin Palawija Jurnal Risalah Kebijakan Pertanian dan Lingkungan Buletin Agroteknologi Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Jurnal Pusat Inovasi Masyarakat Indonesian Journal of Jamu

Edi Santosa

Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (IPB University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia

Author-ID : 370636

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Social Sciences Veterinary Other

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Soil Biology Contribution on Agricultural Land Suitability Evaluation of Wet Tropical Megabiodiversity Regions GITOSUWONDO, SUBOWO; SANTOSA, EDI; ANAS, ISWANDI
Jurnal Sumberdaya Lahan Vol 4, No 02 (2010): Desember 2010
Publisher : Indonesian Center for Agriculture Land Resource Development

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Indonesia is in the region "wet tropical megabiodiversity" it would need to complete the systemÂ for agricultural land suitability evaluation in accordance with real conditions, thus increasing the value-added resources optimally and sustainable and accountable production investment. Soil organisms as a component of production support can act as an agent of energy and nutrient cycling in the soil, improving soil physical properties, and controlling pests and disease. For that soil, biological parameters that need to be considered in evaluating the suitability of land that already exist include: N-fixing or P-solubilizing bacteria groups that live symbiosis and free-living, the fungi solubilizing P and soil organic matter decomposition groups, BGA fixing and free-living N symbiotic groups, fauna groups are able to conserve soil organic matter and improve soil physical properties. Important steps that need to be done in the evaluation of land cover inventory of soil biological populations and its role on the growth of crops, and evaluate the suitability of the soil biological parameters of the functional value of commodity options.

INVASIVE WEEDS IN BOGOR BOTANIC GARDENS, INDONESIA AND ITS IMPLICATION ON SURROUNDING LANDSCAPES Santosa, Edi; Widiyanto, Gunar; Lontoh, Adolf Pieter; Agustin, Elly Kristiati; Takahata, Ken; Mine, Yoko; Sugiyama, Nobuo
Buletin Kebun Raya Vol 17, No 2 (2014): Buletin Kebun Raya Vol. 17 (2) July 2014
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Conservation areas with the objective for collection and exchange plant materials have been speculated as weed bank for surrounding areas. Objective of this study was to identify and characterize ruderal invasive weeds in the Bogor Botanic Gardens (BBG). Observations were conducted in all vak (collection blocks) in the BBG in order to identify the weeds species, determine their invasiveness, dominance and distribution. Weeds associations with host plants were observed. Current weed control program and data of dead trees collection were analyzed in relevant to weed. Distribution of weeds outside BBG was observed by transects method following river and road directions. Results showed that there were seven invasive weeds, i.e., Cecropia adenopus (Cecropiaceae), Cissus nodosa Blume (Vitaceae), Cissus sicyoides Blume (Vitaceae), Dioscorea bulbifera L. (Dioscoreaceae), Ficus elastica Roxb. (Moraceae), Mikania micrantha H.B.K. (Asteraceae) and Paraserianthes falcataria (L.) Nielsen (Fabaceae). These seven weeds species invaded 41 out of 215 plant families in BBG. Six species of weeds, i.e., C. adenopus, C. nodosa Blume., C. sicyoides Blume., D. bulbifera L., M. micrantha H.B.K. and P. falcataria (L.) Nielsen, were introduced as BBG collections for the first time while the F. elastica Roxb was considered as native. It is most likely that the weeds dispersal agents are the wind, birds, bats, visitors, and waters. All of these weeds existed in surrounding areas outside BBG. Given the detrimental impact of invasive weeds on the plant collection in BBG, it is necessary to develop longâterm comprehensive control measures both inside and neighboring areas by involving other government authorities beyond BBG.

The Potentials of Limau (Citrus amblycarpa Hassk. Ochse) as A Functional Food and Ornamental Mini Tree Based on Metabolomic and Morphological Approaches Budiarto, Rahmat; Poerwanto, Roedhy; Santosa, Edi; Efendi, Darda
Journal of Tropical Crop Science Vol 4 No 2 (2017): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Limau (Citrus amblycarpa (Hassk.) Ochse) is one of the native Citrus species of West Java that is grown in the local backyard, thus is easily found in local cuisines. Limau has great potentials for use as a potted plant in home gardens for its aesthetic value and fragrance. The objective of this research was to describe the metabolites fingerprint and morphology of Limau as a potential functional and ornamental mini tree. Methanol leaf extracts from one-year-old Limau originated from Bogor were analyzed using untargeted Gas Chromatography Mass Spectrometry (GCMS). Methanol leaf extract was dominated by vitamin E and composed of other 18 metabolites including phytosterols, fatty acids and terpenes. The major portion of fruit extract consisted of 6-octadecenoic acid, palmitate and various fragrance compounds such as alpha sinensal, alpha limonene, beta citronellal, citronellol, and sabinene. Limau fruits are also a functional food due to its rich antioxidant and aromatic content in the fruits. The morphology of limau tree is suitable as a potted ornamentals or mini-fruits tree for its small crown, sparse branching with unifoliate aromatic leaves and small spines, and plentiful aromatics mini fruits with the diameter of around 2-4 cm.

Status of Rice Biochemical Composition under Lodging Treatment Dulbari, Dulbari; Santosa, Edi; Koesmaryono, Yonny; Sulistyono, Eko
Journal of Tropical Crop Science Vol 4 No 3 (2017): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Extreme weather conditions due to strong wind and high rainfall cause rice lodging. Lodged plants have lower photosynthetic rate and nutrient transport capacity which resulting in lower rice quality. However, physiological process of rice plant under lodging condition is rarely reported. Therefore the objective of this research was to evaluate the biochemical compounds of two rice varieties under artificial lodging treatment. IR64 and HIPA8 varieties were planted at the Experimental Farm in Leuwikopo, Bogor Agricultural University (IPB) in November 2016 to June 2017. At grain filling stage, rice hills were enforced to lodge using manual force until culm break. Analysis of untargeted biochemical compounds was conducted at Research and Development Institute, Laboratory of Regional Health, DKI Jakarta where rice culms from upper and below breaking position were compared. Results showed that rice culms had different biochemical compounds after lodging, especially in fatty acid, terpene, alkane, and steroid group. Lodging culms had a total of 22 to 25 compounds compared to 15 to 17 of the normal plants. It means that lodging stimulated different physiological process in rice plants. A decrease in fatty acid and an increase in the steroid level of lodged plants indicated an increase in oxidative stress of lodging condition. It is possible that low rice grain quality under lodging condition was caused by the changes in the plant physiological processes in response to the environmental stress.Keywords: extreme weather, metabolomics, oxidative stress, rice culm, rice lodging

Adaptation of Wetland Rice to Extreme Weather Dulbari, Dulbari; Santosa, Edi; Sulistyono, Eko; Koesmaryono, Yonny
Journal of Tropical Crop Science Vol 4 No 2 (2017): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Climate change is believed to increase the intensity and the frequency of extreme weather events in reference to strong winds and heavy precipitations. The extreme event is defined as strong wind at speed of 50 km.h-1 and rain fall intensity 10 to 20 mm.h-1 or more . This condition is detrimental to rice production as this may lead to lodging and flooding which normally occurs during the grain filling stage to harvesting resulting in lower yield and grain quality. The. Simultaneous extreme events and critical rice growth occured more frequently due to increasing cropping season within a year in Indonesia. Therefore, it is important to mitigate and develop adaptation strategies in order to sustain rice production. Efforts to adapt to these extreme environmental conditions are mostly based on genetics and agro ecological approaches. Genetically, rice with strong hills, high aerodynamic with low water retention is desired. Agro-ecological manipulation is conducted through wind break application, planting arrangement to facilitate better sunshine penetration, to manage water level and planting calendar. Availability of weather station in the field is important to improve mitigation and continuous adaptation strategy against extreme weather events. Keywords: plant canopy architecture, climate change, heavy rainfall, lodging, strong wind

Nitrogen Use Efficiency of Local and National Aromatic Rice Varieties in Indonesia Chairunnisak, Chairunnisak; Sugiyanta, Sugiyanta; Santosa, Edi
Journal of Tropical Crop Science Vol 5 No 3 (2018): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Nitrogen use efficiency (NUE) is a necessitate in order to enhance sustainable rice farming in Indonesia. Thus, objective of present research was to evaluate NUE of local and national Indonesian superior aromatic rice treated with different levels of nitrogen fertilizer (N). Planting plot was arranged using five levels of N as the main plot, i.e; 0, 45, 90, 135 and 180 kg ha-1; and two rice varieties as subplot, i.e: Sigupai Abdya (local) and Inpari 23 Bantul (national). The results showed application 180 kg N ha-1 to Sigupai Abdya significantly increased the plant height. However, it also postponed the flowering time. Inpari 23 Bantul treated with 180 kg N ha-1 produced the highest number of tillers. Combination of 90 kg N ha-1 with Sigupai Abdya variety significantly reduced the number of empty grains. Sigupai Abdya variety has a higher number of grains per panicle and sampling plot yield than Inpari 23 Bantul, and dosage 90 kg N ha-1 increases grain yield per clump also sampling plot yield significantly. Nitrogen at 180 kg N ha-1 made Sigupai Abdya variety has high N content and absorption N in primordia phase, and the Inpari 23 Bantul variety had grain with high N content. Nitrogen at 90 kg ha-1 caused Sigupai Abdya variety at primordia phase had NUE higher than Inpari 23 Bantul. This study showed that local variety Sigupai Abdya is suitable for development as rice with low input NKeywords: Aceh aromatic, low input, nitrogen dose, N uptake, Oryza sativa L.

A Review of Root Pruning to Regulate Citrus Growth Budiarto, Rahmat; Poerwanto, Roedhy; Santosa, Edi; Efendi, Darda
Journal of Tropical Crop Science Vol 6 No 01 (2019): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Root is the important plant organ hiding below the soil that serves as plant supporting structure, water and nutrient supplier and assimilates storage. Root growth occurs in turn with shoot part, forming repeated cyclic pattern because of the photosynthate competition. Root growth regulation is one of the promising practices to boost the yield of fruit tree, especially citrus that is economically important and highly demanded fruit. Root pruning varied based on the scale of intensity and plant growth stage, including air root pruning, knife root pruning and modern pruning using root pruner machine mounted to a tractor. Root pruning to induce the growth of more fi brous root system and to correct root deformation at seedling stage have potentials to improve post-transplant growth. Besides, it has a potential to replace the use of chemical plant growth regulator for a more environmentally friendly practice. The pruning of root impeded the canopy growth, altered the plant water status leading to fl ower promotion. In addition, it is also a promising practice to overcome the alternate bearing on fruit tree, including citrus, through the suppressing of excessive growth and restricting the high fruit load during the ‘on year’ and allowing a better carbohydrate storage for the improvement of yield during the ‘off year’.

Weed Growth and Lowland Rice Production as Affected by Planting Patterns and Rice Varieties Rianto, Dwi Fajar; Guntoro, Dwi; Santosa, Edi
Journal of Tropical Crop Science Vol 6 No 01 (2019): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Weeds are one of the most limiting factors in rice cultivation. This study aims to evaluate the eff ects of rice planting patterns on the prevalence of several weed species, Cyperus iria, Echinochloa crusgalli, Fimbristylis miliacea, Leptochloa chinensis, Ludwigia octovalvis, and Spenoclea zeylanica, and to discuss the implications on rice production systems. The research was conducted in IPB Sawah Baru experimental farm in Bogor, West Java, Indonesia, from December 2017 to April 2018. The experiment was arranged in a randomized block design with two factors, rice varieties and rice planting methods. The rice varieties, “IPB 3S” and “Ciherang”, were assigned as the main plot, whereas planting methods, i.e. 25x25 tile, Legowo 2:1 (double rows), Legowo 4:1 (quadruple rows), as sub-plots. The results showed that in the “IPB 3S” plots L. octovalvis shoot dry weight decreased by 33.0%, the root dry weight of L. chinensis roots decreased by 22.6%, and the number of S. zeylanica weed leaves decreased by 28.4% compared to the plots planted with “Ciherang”. With legowo 2:1 planting method the dry weights of L. octovalvis decreased by 21.5%, L. octovalvis by 1.7%, and L. chinensis by 4.4%, and the number of weeds E. crus-galli by 7.0 % compared to Tegel 25x25 method. L. chinensis seemed to be a dominant weed at both vegetative and generative stage of rice development.

The Effect of Population Density and Intercropping with Tomato on the Growth and Yield of Winged Bean (Psophocarpus tetragonolobus) Maure, Gerson Hans; Chozin, Muhammad Achmad; Santosa, Edi
Journal of Tropical Crop Science Vol 6 No 02 (2019): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Winged bean (Fabaceae) is a tropical crop that has high nutrient content, and almost all parts of the plant are edible. The research aimed to evaluate the growth and production of winged bean in an intercropping system with tomato. The study was conducted at the Cikabayan Experimental Field of Bogor Agricultural University, Bogor, Indonesia, in a randomized block design with three replications during the rainy season of December 2017 to June 2018. Winged beans were planted in high and low population densities and intercropped with three tomato genotypes, “Tora”, F70030081-12-16-3 and “Apel Belgia”. Monoculture winged bean was assigned as control. Tomatoes were planted between the rows of the winged beans in the intercropping treatment. The results showed that the growth of winged bean in monoculture and intercropping systems was not significantly different. The photosynthetic activity of winged bean at three to five weeks after planting remained high, indicating that the vegetative growth was optimal in both systems. Intercropping increased the winged bean number of pods per plant by 12.66-19.52% compared to monoculture, irrespective of population density. Therefore, winged bean could be considered as suitable to grow in intercropping systems.

Production, Post-Harvest and Marketing of Kaffir Lime (Citrus hystrix DC) In Tulungagung, Indonesia Budiarto, Rahmat; Poerwanto, Roedhy; Santosa, Edi; Efendi, Darda; Agusta, Andria
Journal of Tropical Crop Science Vol 6 No 02 (2019): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Kaffir lime (Citrus hystrix DC) is one of the Citrus species that is popular as food spices in Indonesia. This study was aimed at describing the production system, post-harvest handling, marketing and evaluating the product variation of kaffir lime cultivated in the Tulungagung district, East Java Province, Indonesia. Data was collected through a survey by interviewing kaffir lime farmers, distributors and customers in June 2018. Kaffir lime is cultivated by local farmers using traditional and conventional agriculture practices. The farmer used good quality seedlings as planting materials and applies animal manure or compost to the trees. Kaffir lime is grown on rain-fed land; fertilizers and pesticides are applied sparingly. The kaffir lime leaves could be harvested twice a year in different seasons. Better leaf quality can be obtained during the rainy seasons. The leaf production per tree is estimated at about 100 gram per plant per season. Post-harvest handling involved sorting, packing and marketing without any cooling treatment. The standard gate price of kaffir lime leaf in June 2019 was IDR 6,000-7,000, IDR 9,000-10,000 at the collector level, IDR 11,000-12,000 at wholesaler, and IDR 14,000-16,000 at small retailers. Leaves were distributed to traditional market in Tulungagung, neighbouring districts such as Kediri, Trenggalek and Blitar, and also to capital cities such Jakarta. The main product of kaffir lime is the fresh leaf for food seasoning and as a raw material to produce essential oil and dry leaf powder. The stems have been used for fuel in home industries. The fruits of kaffir lime are rarely found in the market and have great potentials for essential oil production and recently, a promising commodity for export.

Co-Authors , Hariyadi , Kholidi , Krisantini , Susilawati . SUBOWO Abdoellah, Soetanto Abdul Gani Gani Tarigan Abdul Harris Burhan Achmad Taufiq Ade Wachjar Ade Wachjar Ade Wahjar Aditama, Ravi Aditya Wira Tantra Adolf P. Lonto Adolf Pieter Lontoh, Adolf Pieter Agik Suprayogi Agus Buono Agus Sufyan Ahmad Fadli Alghifari AHMAD JUNAEDI Ahmad Zamzami Ajeng Aulia Martina Akmal, Ajmir Almas Lathuf Assyura Anas D. Susila Anas D. Susila Anas Dinnurrohman Susila Anas Dinurrohman Susila Anas Miftah Fauzi Andi Gunawan Andreas Kefi Andria Agusta ANDRIA AGUSTA Andria Agusta Ani Kurniawati Ani Kurniawati Anita Hazimah Putri Anung Wahyudi Aptika Hana Prastiwi Nareswari Arief Hartono Ariny Jihan Thifany Arisa Noguchi Arjuna, Rizka Tri Atang Sutandi Ayu Diah Putu Laksmi Putri Bambang S. Purwoko Bambang Sapta Purwoko Bobot Sudoyo Candra Budiman Careca Sepdihan Rahmat Hidayatullah Chairunnisak, Chairunnisak Chun Lan Lian Chusyairi, Ahmad Darda Efedi Deden Derajat Matra Deden Drajat Matra Delvi Maretta Desta Wirnas Dhika Prita Hapsari Diaguna, Ridwan Didy Sopandie Diny Dinarty Dulbari Dulbari Dulbari, Dulbari Dwi Guntoro Dwi Sutari Laksono Efendi, Darda Eko Sulistyono Elda Kristiani Paisey Elly Kristiati Agustin, Elly Kristiati Elsanti, . Endah Retno Palupi Endang Gunawan Eny Widajati Fadil Rohman Fajar Delli Wihartiko Faqih Udin Fatkhunnisa, Ratu Fifin Nashirotun Nisya Gatot Pramuhadi Gerson Hans Maure Ginanjar Pramudya Sakti Gunar Widiyanto, Gunar HAJRIAL ASWIDINNOOR Haniefan, Nafarain Agung Hariyadi Hariyadi, Hariyadi Herdhata Agusta Herman Wafom Tubur I Wayan Astika Imam Fauzi Fauzi Tanjung Imdad Julian Purwanto Imron Gempur Saputro Ince Raden Indra Mario Stefano Intan Dewi Puspitasari Irfan Rabani Irfanda, Munandar Is Helianti Iswandi Anas Iswandi Anas Jaenudin Kartahadimaja Joan Joulanda Grace Kailola Juang Gema Kartika Karmanah, Karmanah Kazi Liaquat Hossain Ken Takahata Ken Takahata Ken Takahata, Ken Khamdanah, . Lianah Kuswanto Luh Putu Ratna Sundari Lutfy Ditya Cahyanti, Lutfy Ditya M A Chozin M.A. Chozin Machfud Machfud Maghfirah Marchella Putriantari Martini Aji Maryarti Sari Maryati Sari Mathias Prathama Mathias Prathama Md. Abdul Wadud Md. Abul Kashem Md. Shajahan Ali Memen Surahman Miftakhur Rizki Hidayat Febrianto Mochamad Hasjim Bintoro Mochamad Hasjim Bintoro Djoefrie Mohamad Rahmad Suhartanto Mohammad Abdul Wadud Muhamad Abdul Rofiq Muhamad Zainul Fattah Muhammad Fatah Muhammad Ihsan Fatawa Muhammad Raihan Ferdiansyah Muhammad Thamrin Munandar Irfanda Munif Ghulamahdi Nabila Syarfina Aryani Nadia Dwi Kartika Nani Yulianti Ni Made Armini Wiendi Nina Ariesta Nindita, Anggi Nobuo Sugiyama Nobuo Sugiyama Nobuo Sugiyama Nobuo Sugiyama Nurlela, Nurlela Nurul Hidayah NURUL HIDAYAH Nurul Khumaida Okti Syah Isyani Permatasari Panca Dewi Manu Hara Karti Purwanto, Imdad Julian Purwono Purwono Purwono Purwono Purwono Putri Irene Kanny Rafi Fauzan Rahayu Safitri Rahman Rahmat Budiarto Rahmayanti, Fetty Dwi Ramadhani, Detri Ardi Rd. Selvy Handayani Rezky Puryan Ramadhani Rianto, Dwi Fajar Riska sukmawati Ritonga, Arya Widura Rizka Tri Arjuna Roedhy Poerwanto Roelly Ainul Yaqin Rohman, Fadil Rosdiana, Siska Rosyad, Astyani Samudra, Ferdianto Budi Sandra Arifin Aziz Santun RP Sitorus Sembiring, Wildan Kahfi Shafira Pratiwi Sigit Pramono Sinaga, Falencia Siska Rosdiana Siti Halimah Slamet Susanto Sobir Sobir Soekisman Tjitrosemito Soetanto Abdoellah Sofyan Zaman Sri Nurdiati Sri Suryo Sukoraharjo Sri Wahjuni SUBOWO GITOSUWONDO Sufiatul Maryana Sugiyanta Sulassih, . Supijatno Surono, . Suwarto Suwarto Suwarto Syaiful Anwar Syaiful Anwar Tantra, Aditya Wira Tjahja Muhandri Ulfha Junita Ulinnuha, Zulfa Utami Prawati Wijaya, Aldi Kamal Winarso D. Widodo Winarso Drajad Widodo Yoko Mine Yoko Mine Yoko Mine Yoko Mine Yonny Koesmaryono Yunus, Ismadi

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