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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Agrohorti Bulletin (e-Journal) Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia Jurnal Ilmu Pertanian BIOTROPIA - The Southeast Asian Journal of Tropical Biology 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 Jurnal AGROSAINS dan TEKNOLOGI Journal of Tropical Crop Science Journal of Tropical Horticulture JURNAL AGRONIDA Jurnal Kelautan Nasional Molekul: Jurnal Ilmiah Kimia Jurnal Jamu Indonesia 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 (JPIM)

Edi Santosa

Agronomy And Horticulture Departement, Faculty Of Agriculture, IPB University

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 Immunology & microbiology Social Sciences Veterinary Other

Published : 104 Documents Claim Missing Document

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KNO 3 Application Affect Growth and Production of Amorphophallus muelleri Blume Edi Santosa; Siti Halimah; Anas D. Susila; Adolf P. Lonto; Yoko Mine; Nobuo Sugiyama
Indonesian Journal of Agronomy Vol. 41 No. 3 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRAKPemberian larutan KNO3 diduga dapat meningkatkan produktivitas tanaman iles-iles (Amorphophallus muelleriBlume). Penelitian bertujuan mempelajari pengaruh pemberian larutan KNO terhadap produktivitas A. muelleri. Umbiutuh umur satu tahun dengan bobot 100-125 g ditanam dalam polibag yang ditempatkan di bawah naungan paranet 50%pada musim hujan (September 2010-April 2011) di Bogor, Indonesia. Lima taraf larutan KNO3 yaitu 0, 2, 4, 6 dan 8% (b/v)diberikan melalui daun dan melalui tanah. Larutan diberikan 2 kali sebulan mulai 12 minggu setelah tanam (MST). Hasilmenunjukkan bahwa pemberian KNO3-13 nyata mempengaruhi pertumbuhan tanaman, khususnya meningkatkan jumlah daundan memperpanjang masa vegetatif. Pemberian KNO pada taraf 4% memberikan pengaruh tertinggi jika diberikan melaluidaun. Pemberian KNO33 taraf 4% memberikan pertumbuhan yang lebih tinggi jika diberikan melalui daun dibandingkanmelalui tanah. Secara umum, tidak ada pengaruh nyata pada pertumbuhan tanaman akibat pemberian dosis KNO yangdiberikan melalui tanah. Penelitian berimplikasi bahwa pemberian pupuk KNO melalui daun pada taraf 4% dapatditingkatkan efektivitasnya jika kerusakan pada anak daun dapat diminimalkan. Kerusakan daun cenderung meningkat padadaun tua, oleh karena itu, studi lanjut perlu dilakukan terkait waktu aplikasi yang tepat.Kata kunci: iles-iles, kalium nitrat, pupuk daun, pertumbuhan vegetatif

Gamma Irradiation on Growth and Development of Amorphophallus muelleri Blume. Edi Santosa; Sigit Pramono; Yoko Mine; Nobuo Sugiyama
Indonesian Journal of Agronomy Vol. 42 No. 2 (2014): Jurnal agronomi indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACT Iles-iles (Amorphophallus muelleri Blume) produces apomictic seeds lead to low genetic variation. In order to induce genetic variation, germinated seeds were exposed to Gamma irradiation (Co-60) at doses of 10 to 100 Gy. Seed irradiation was conducted at Center for the Application of Isotope and Irradiation Technology -National Nuclear Energy Agency (CAIRT), Indonesia. Morphology and yield of M1 generation were observed. Results showed that irradiation at a dose of 10 Gy close to LD50 with survival rate 56%. Gamma irradiation at a dose of 10 Gy delayed seeds germination. Germination rates gradually increased and reached maximum at 4 weeks after planting (WAP) for control plants, and 14 WAP of irradiated plants. At 16 WAP, germination rate of 10 Gy irradiated plants was 56% and 84% for those of control plants. Irradiation induced chimera as indicated by short petiole, variegated and abnornal shape of leaflets. Some irradiated plants entered dormancy at 8-10 weeks later than control ones. Prolong vegetative periode lead the plants to produce heavier corms. This study revealed the possibility to induce variation of A. muelleri by using gamma irradition. Keywords: Amorphophallus muelleri, gamma irradiation (Co-60), morphological variation, mutation breeding

NPK Fertilizers for Elephant Foot Yam (Amorphophallus paeoniifolius (Dennst.) Nicolson) Intercropped with Coffee Trees Edi Santosa; Anas Dinurrohman Susila; Adolf Pieter Lontoh; Arisa Noguchi; Ken Takahata; Nobuo Sugiyama
Indonesian Journal of Agronomy Vol. 43 No. 3 (2015): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTFertilizer application in elephant foot yams (Amorphophallus paeoniifolius (Dennst.) Nicolson) intercropping system is rare in Indonesia, therefore, NPK fertilizers experiment was conducted under the shade of 10-year-old coffee plantation at Leuwikopo Experimental Farm, Bogor, Indonesia, in order to increase the productivity of elephant foot yam intercropped with coffee trees. Prior to planting, 20 ton ha-1 of goat manure was applied. Four NPK combinations, i.e., N, P2O5, K2O at the rate of 0, 0 and 0; 100, 60 and 80; 125, 60 and 100; and 150, 60 and 120 kg ha-1, were applied. Results showed that there were no significant differences in leaf number per plant, petiole size and rachis length among treatments. Application of NPK decreased photosynthetic rates, while increasing rate of N and K2O had no effect on photosynthetic rates. NPK application at the 100 N, 60 P2O5 and 80 K2O kg ha-1 (N100P60K80 treatment) or larger prolonged growth duration regardless of NPK levels, and there was a close relationship between corm yield and growth duration. As a result, corm fresh mass was higher in the 100:60:80 kg ha-1 treatment than in control. In the N125P60K100 and N150P60K120 kg ha-1 treatments, leaves were damaged by heavy rains and winds, counteracting beneficial effect of NPK on growth duration and corm yield. These results suggested the importance of delay of entering dormancy for an increase in productivity of A. paeoniifolius.Keywords: NPK fertilizers, photosynthesis, productivity, prolong growth, tuber crop

Tree-based Water Footprint Assessment on Established Oil Palm Plantation in North Sumatera, Indonesia Edi Santosa; Indra Mario Stefano; Abdul Gani Gani Tarigan; Ade Wachjar; Sofyan Zaman; and Herdhata Agusta
Indonesian Journal of Agronomy Vol. 46 No. 1 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTIn a long life cycle of oil palm plantation, sustainable water management is mandatory because irrigation is rarely applied. In order to develop water management for sustainable palm oil production, tree-based water footprint of well-established oil palm plantation was assessed. Field data were collected from February to June 2016 in Dolok Ilir managed by PTPN IV, North Sumatera, Indonesia. Additional data were obtained from interviews on the site and the surrounding estates, reports and references. Results showed that water footprint (WF) for production of fresh fruit bunch (FFB) was 510.69 m3 tonne-1 and crude palm oil (CPO) was 517.79 m3 tonne-1. Green, blue and grey water contributed 94.78%, 0.71% and 4.50% in FFB, and 93.48%, 1.66% and 4.85% in CPO productions, respectively. All green WF was calculated basen on actual value of tree evapotranspiration, therefore, the value was mostly lower than other researchs. Low amount of blue water indicates that the oil palm tree in North Sumatera extracts low amount of ground water. On the other hand, grey water for pollution dilution of fertilizers, pesticides and herbicides were high, i.e., 15.15 m3, 4.77 m3, 3.07 m3 tonne-1 FFB, respectively. It implies that reduction of grey water should be implemented in the near future through precission farming.Keywords: CPO, Elaeis guineensis, precission farming, sustainable production, water footprint

Keragaan Varietas dan Galur Padi Tipe Baru Indonesia dalam Sistem Ratun , Susilawati; Bambang Sapta Purwoko; Hajrial Aswidinnoor; Edi Santosa
Indonesian Journal of Agronomy Vol. 38 No. 3 (2010): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Eighteen Indonesian new plant type (NPT) of rice varieties and lines were evaluated in a ratoon system. The results showed that ratooning ability was related to the vegetative growth prior to harvest, which gave high ability ratoon growth. New plant type varieties and several lines of rice had better vegetative growth and produced higher ratoon than other genotypes. Ratoons started to develop 2-7 days after harvest, with an average number of leaf 2-4 per tiller. Number of productive tillers of ratoon ranged from 6.0 to 30.0 per hill, with number of grain per panicle ranged from 38.0 to 228.2, and grain weight per hill of ratoon 10.4 to 31.2 g, dependent on genotypes. Maturity of ratoon was also dependent on genotypes. On average, maturity was 68 days after harvest of the main crop. Grouping of ratooning ability based on hierarchical cluster analysis resulted in three groups, namely nine genotypes had high potential, fi ve genotypes had medium potential, and four genotypes had low potential. This study indicated that ratoon is potential to increase rice planting index in Indonesia. The genotypes with high ratoon ability need to be evaluated for agronomic performance in the fi eld. Keywords: new plant type, ratooning ability, rice

Pendugaan Kehilangan Hasil pada Tanaman Padi Rebah Akibat Terpaan Angin Kencang dan Curah Hujan Tinggi Dulbari ,; Edi Santosa; Yonny Koesmaryono; dan Eko Sulistyono
Indonesian Journal of Agronomy Vol. 46 No. 1 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

AbstractRice lodging due to incident of extreme weather, i.e., combination of strong winds and high rainfall is eviden in Indonesia. However, yield loss in the area is rarely studied. In order to estimate yield loss on rice, a model for calculating the yield reduction was developed. The objective of present study was to analyze the effect of strong winds and high rainfall incidents on yield loss of rice in the field. The study was conducted at the Sawah Baru IPB, Bogor, Indonesia from February to April, 2016 on rice plots severe from natural incident of strong wind and high rainfall. The results showed that rice lodging from strong wind and high rainfall formed patterns and specific formations. We determined four major lodging formations, five lodging degrees, and eleven different patterns due to wind direction. Overall, lodging occured on research area of 27.6% with production loss up to 11.89%. This research showed that estimation of yield loss due to incident of extreme weather could be conducted in the level of field based on area of coverage and degree of lodging. Application of the model on wider area needs further evaluation. Keywords: Agronomic character, extreme weather adaptation, modelling, lodging, rice variety

Genetic variations of Amorphophallus variabilis Blume (Araceae) in Java using AFLP Edi Santosa
Indonesian Journal of Agronomy Vol. 40 No. 1 (2012): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Amorphophallus variabilis Blume, a member of Araceae, is a native tuber crop in Java, Madura and Kangean Islands,Indonesia. The plant showed high variations in morphology. However, genetic variations at molecular level have not beenwell studied. Amplified fragment length polymorphism (AFLP) was carried out using 8 primers combination of EcoRI andMseI on 78 accessions collected from 28 sites in Java, Indonesia. Results showed that AFLP markers able to generatepolymorphism among accessions. A total of 220 polymorphisms were found. The differences among accessions at the geneticlevel were high, and 5 clusters were constructed. Grouping was independent of geographical origin, similar to clustering ofmorphological characteristic of flowers as in the previous report. Accessions from one site composed of one to four differentcluster groups, showed that variation in single site was observed. Regarding conservation program of the A. variabilis innatural population, it is reasonable to protect one bigger site rather than many small sites, but it should be recommended tomaintain conservation areas in several districts. Further study on population structure should be carried out to explain suchvariability.

Peramalan Produksi Kelapa Sawit menggunakan Peubah Agroekologi di Kalimantan Selatan Edi Santosa
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

Estimation on oil palm production is important for company planning. However, there are only few studies have been conducted in Kalimantan. The objective of the study was to identify agronomic and agroecological factors determined production of oil palm in Kalimantan. The study was conducted at PT Ladangrumpun Suburabadi, Minamas Plantation Angsana Estate, Tanah Bumbu District, South Kalimantan, Indonesia from February 15 to June 15, 2010. Data were collected from the company, government institutions and interviews with the company staffs. Results showed that seven parameters signifi cantly determined estimation of oil palm production. Out of 18 possible linier models, 6 models showed good fi t as predictor. The best modeling as predictor was determined by current plant age (in months), fertilizer application at 18 months before harvest (MBH), relative air humidity at 6 MBH (%), light intensity at 18 MBH (%), rainfall at 6 MBH (mm), level of water defi cit at 24 MBH (mm) and number rainy day at 18 MBH (days). It was expressed in equation Y = 3.15 + 0.010 age -0.016 fertilizer -0.016 light intensity -0.005 water defi cit -0.015 number of rainy day. This fi nding implies that recording data of agronomic and ecological factors are important for production estimation. Eventhough the model is best fi t to the study site, however, it needs further verifi cation when applied in larger area of the other sites in Kalimantan. Keywords: agronomic factors, Elaeis guineensis, linier regression, modeling, production estimation

Karakteristik Daun Jarak Pagar (Jatropha curcas L.) dan Hubungannya dengan Fotosintesis Ince Raden; Bambang S. Purwoko; , Hariyadi; Munif Ghulamahdi; Edi Santosa
Indonesian Journal of Agronomy Vol. 36 No. 2 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The objective of this research was to study the morphology and physiology of jatropha leaves and its relation to photosynthesis. Research was conducted using Randomized Complete Block Design with single factor, i.e., leaf ages at the canopy with ten replications. The results showed that jatropha had phyllotaxy 5/13 with angular divergence 1380 . In early growing leaf enlarged sharply and then constant after 9 week, remaining green for 14 weeks. Chlorophyll a, b, and total achieved maximum at 9 week, i.e., 0.45 g/cm2 , 0.19 g/cm2 , and 0.62 g/cm2 , respectively. Photosynthesic rate was maximum at 6 week, i.e., 8.99 µmol/m2 /s, while number of stomata was maximum at 9 week (289.47 mm2 ). This finding implies that leaf number 11 to 13 or age 6 week after emergence could be used as reference for photosynthetic evaluation.

Yield Evaluation of Selected Clones Apomictic Iles-Iles (Amorphophallus muelleri Blume) on Second Growing Period Adolf Pieter Lontoh; Edi Santosa; Ani Kurniawati; and Maryati Sari
Indonesian Journal of Agronomy Vol. 47 No. 2 (2019): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Increasing corm production of iles-iles (Amorphophallus muelleri Blume) through genetic improvement is important for increasing farmers’ income. However, the study on variety development is rarely reported. Here, yield evaluation of the second growing period was conducted at IPB Experimental Station Leuwikopo Farm, Bogor, Indonesia (-6.5647419, 106.7220331, 17.25z) from August 2017 to July 2018 in order to select candidate clone with high corm production. One-year-old corms of 21 F1 accessions were planted under 55% shading net with four replications. The parent population was set as a control. Results showed that accessions exhibited variation in corm size. The parent population produced corm ranged 622.3-908.3 g in weight (on average 764.2 g). The pooled accessions produced corm 180.7-1527.5 g in weight, corm diameter 71.0-145.8 mm, and corm height 46.6-87.6 mm. Nine accessions produced 5.91-99.88% higher average corms weight than the parent, i.e., BKB, BS, CF, CK, CR, DPG, DPP, SBM, and SHJ. Based on 30% as the basis of corm weight improvement, we concluded that five accessions, i.e., CK, CR, DPG, DPP, and SBM as prospective candidate clones. These accessions could be further evaluated in the third growing period to select best candidates of new variety of A. muelleri.Keywords: Agamosporous, Araceae, breeding strategy, new variety, productivity

Co-Authors , Hariyadi , Kholidi , Susilawati Abdoellah, Soetanto Abdul Gani Gani Tarigan Abdul Harris Burhan Achmad Taufiq Ade Wachjar Ade Wachjar Aditya Wira Tantra Adolf P. Lonto Adolf Pieter Lontoh, Adolf Pieter Agik Suprayogi Agus Buono Agus Sufyan Ahmad Fadli Alghifari AHMAD JUNAEDI Ahmad Zamzami Ajmir Akmal Almas Lathuf Assyura Anas D. Susila Anas D. Susila Anas Dinnurrohman Susila Anas Dinurrohman Susila Anas Dinurrohman Susila Andreas Kefi ANDRIA AGUSTA Ani Kurniawati Ani Kurniawati Ani Kurniawati Anung Wahyudi Aptika Hana Prastiwi Nareswari Ariny Jihan Thifany Arisa Noguchi Arjuna, Rizka Tri Arya Widura Ritonga Atang Sutandi Bambang S. Purwoko Bambang Sapta Purwoko Budiman, dan Candra Careca Sepdihan Rahmat Hidayatullah Chairunnisak Chairunnisak Chairunnisak, Chairunnisak Chun Lan Lian Deden Derajat Matra Deden Drajat Matra Delvi Maretta Desta Wirnas Dhika Prita Hapsari Diaguna, Ridwan Didy Sopandie Diny Dinarty Dulbari, Dulbari Dwi Guntoro Dwi Sutari Laksono Efendi, Darda Eko Sulistyono Elda Kristiani Paisey Elly Kristiati Agustin, Elly Kristiati Endang Gunawan Fajar Delli Wihartiko Fattah, Muhamad Zainul Ferdianto Budi Samudra Fifin Nashirotun Nisya Gerson Hans Maure Gunar Widiyanto, Gunar Hajime Nakano HAJRIAL ASWIDINNOOR Heni Purnamawati 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 Ismadi Ismadi Iswandi Anas Iswandi Anas Joan Joulanda Grace Kailola Juang Gema Kartika Kanny, Putri Irene Karmanah, Karmanah Kazi Liaquat Hossain Ken Takahata Ken Takahata Ken Takahata, Ken Luh Putu Ratna Sundari Lutfy Ditya Cahyanti M A Chozin Machfud Machfud Maghfirah Marcella Putriantari Marchella Putriantari Martini Aji Maryarti Sari Maryati Sari Md. Abdul Wadud Md. Abul Kashem Md. Shajahan Ali Memen Surahman Mohamad Rahmad Suhartanto Mohammad Abdul Wadud Muhammad dan Heni Purnamawati Haryadi Danang Faqihhudin Muhammad Raihan Ferdiansyah Muhammad Thamrin Munandar Irfanda MUNIF GHULAMAHDI Nadia Dwi Kartika Nani Yulianti Nina Ariesta 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 Rahayu Safitri Rahman Rahmat Budiarto Rd. Selvy Handayani Rianto, Dwi Fajar Riska sukmawati Rizka Tri Arjuna ROEDHY POERWANTO Rohman, Fadil Rosdiana, Siska Sakti, Ginanjar Pramudya Sandra Arifin Aziz Santun RP Sitorus Sigit Pramono Siska Rosdiana Siti Halimah Slamet Susanto Sobir Sobir Sobir Sobir Soekisman Tjitrosemito Sofyan Zaman Sri Nurdiati Sri Suryo Sukoraharjo SUBOWO GITOSUWONDO Sugiyanta Sulassih, . Supijatno Supijatno Supijatno Susilawati Suwarto Tantra, Aditya Wira Tjahja Muhandri Ulfha Junita Ulinnuha, Zulfa Utami Prawati Wahjar, Ade Wijaya, Aldi Kamal Winarso D. Widodo Winarso Drajad Widodo Yoko Mine Yoko Mine Yoko Mine Yoko Mine Yonny Koesmaryono Yonny Koesmaryono Zulfa Ulinnuha

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