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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Indonesian Journal of Agricultural Science Jurnal AgroBiogen Jurnal Penelitian Tanaman Industri Pembangunan Pedesaan AGRIVITA, Journal of Agricultural Science Caraka Tani: Journal of Sustainable Agriculture Jurnal Penelitian Pertanian Tanaman Pangan Journal of Tropical Crop Science Agro Bali: Agricultural Journal Jurnal Penelitian Tanaman Industri (Littri)

Bambang Sapta Purwoko

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

Author-ID : 240446

Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Industrial & Manufacturing Engineering Other

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PENINGKATAN RETENSI BUAH MANGGA KULTIVAR GADUNG 21 DENGAN PEMBERIAN NAA DAN GA3 INCREASING RETENTION OF MANGO FRUIT CULTIVAR GADUNG 21 BY NAA AND GA APPLICATION 3 , Sakhidin; Purwoko, Bambang Sapta
Pembangunan Pedesaan Vol 5, No 3 (2005)
Publisher : Pembangunan Pedesaan

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The objective of the research was to study the effect of NAA and GA application 3 on fruit retention of mango cv. Gadung 21. The experiment was conducted from July to December 2002, located at mango orchard of PT Fajar Mekar Indah, Pasuruan. A randomized block design with two factors was used in this experiment. The first factor was concentration of NAA, i.e., 0, 10, 30, and 100 ppm. The second one was concentration of GA , i.e. 0, 30, and 100 ppm. Each treatment was 3 replicated three times. Result of the research showed that the application of NAA inclined to reduce percentage of fruit drop per panicle. The application of 100 ppm NAA gave the highest number of fruit per panicle (1.03) and weight of fruit per tree (20.55 kg). The application of 100 ppm GA gave the highest weight of fruit 3 per tree (20.52 kg). Interaction between concentration of NAA and GA did not 3 influence all observed variables.

PEMILIHAN BATANG BAWAH JARAK PAGAR (Jatropha curcas Linn.) TOLERAN TERHADAP CEKAMAN KEKERINGAN CHOLID, MOHAMMAD; HARIYADI, HARIYADI; SUSANTO, SLAMET; DJUMALI, DJUMALI; PURWOKO, BAMBANG SAPTA
853-8212
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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ABSTRAK

Heterosis F1 Hibrida dan Daya Gabung Galur Mandul Jantan dari Tiga Tipe Sitoplasma dan Galur Pemulih Kesuburan Padi (Oryza sativa L.) Widyastuti, Yuni; Purwoko, Bambang sapta; Yunus, Muhammad; Kartina, Nita; Wibowo, Bayu Pramono; Rumanti, Indrastuti Apri; Satoto, Satoto
Jurnal Penelitian Pertanian Tanaman Pangan Vol 1, No 3 (2017): Desember 2017
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

The combining ability provides information on parental lines selection and F1 hybrids having high yield potential. The analysis important to evaluate new parental lines used at hybrid rice breeding. The objectives of the research were to study combining ability of line (CMS/A) and tester (Restorer/R) in producing the new hybrid rice, and to evaluate those new hybrid performance. The research was conducted in November in 2014 to February in 2015 at Indonesian Center for Rice Research field station, in Sukamandi. Mating design and analysis were done using line x tester design. Thirty hybrids and their parental lines were planted in the field using randomized complete block design with three replications. The characters of yield and yield components were observed. Among the lines, CMS IR 58025A was a good general combiner for number of filled grain per panicle, while GMJ 14A was a good general combiner for maturity, and seed set. Among the testers, PK 12 line was the best general combiner for maturity and seed set, while BP 11 was the best general combiner for number of filled grain per panicle. The new hybrid rice with high specific combining ability for grain weight per hill were GMJ 13A/PK 90 (WA), IR 80154A/R 32 (Gambiaca), and GMJ 14A/R 3 (Kalinga). The hybrids rice with the highest standard heterosis compared than Maro and Ciherang, were GMJ 13A/BP 11, GMJ 14A/PK 90, and GMJ 15A/PK 90, each with CMS with genetic background group of WA, Kalinga, and Gambiaca, respectively.

INDUCED MUTATION BY GAMMA RAYS IRRADIATION TO INCREASE CHILLI RESISTANCE TO BEGOMOVIRUS Gaswanto, Redy; Syukur, Muhamad; Purwoko, Bambang Sapta; Hidayat, Sri Hendrastuti
AGRIVITA, Journal of Agricultural Science Vol 38, No 1 (2016): FEBRUARY
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v38i1.581

Begomovirus infection has a significant impact of lowering chilli yield in Indonesia. A constraint of narrow genetic variability of chilli in Indonesia has made the mutation breeding program as a solution worth-pursuing in increasing the genetic variability. The objective of this study was to determine the LD50 point for each of the five irradiated chilli genotypes and the optimum dose of gamma irradiation in inducing chilli resistance to Begomovirus and other improved agronomical traits. The study was conducted in the Indonesian Vegetable Research Institute (IVEGRI) at Cikole-Lembang, elevation 1,200 m above sea level, from March to December 2013. Split plot design was used with genotype as main factor (Kencana, Lembang-1, SSP, Tanjung 2, Seloka) and irra-diation dosage as sub-factor (0, 200, 400, 600, 800 Gy). All treatments were replicated three times. The results showed that LD50 points of the five irradiated chilli genotypes were in the range of 422.64-629.68 Gy. There were some chilli genotypes in the population of M2 that had high coefficient variance genetic (CVG) and broad sense heritability (h2bs) value for disease incu-bation time. This could be used as resistance parameter to Begomovirus and improvement parameter of several agronomical traits.

The Physiological Response of Soybean Genotypes to VAM Inoculation on Selected Drought Stress Levels HAPSOH HAPSOH; SUDIRMAN YAHYA; TEUKU MUHAMMAD HANAFIAH OELIM; BAMBANG SAPTA PURWOKO
HAYATI Journal of Biosciences Vol. 13 No. 2 (2006): June 2006
Publisher : Bogor Agricultural University, Indonesia

Present research was aimed to study physiological changes of soybean which were inoculated with vesicular arbuscular mycorrhizal fungi (VAM). Glomus etunicatum was exposed to moderate and severe drought condition. Symbiotic association with VAM improved adaptability as it was shown by the increasing leaf proline content. The MLG 3474 and Sindoro are the more tolerant genotypes while the responses of plant to VAM on improving the adaptability to drought were larger on Lokon. Key words: Soybean, mycorrhiza, drought, proline

Changes of Gibberellin and Total Sugar Content in Flower Developmental Stages of Mangosteen I NYOMAN RAI; ROEDHY POERWANTO; LATIFAH KOSIM DARUSMAN; BAMBANG SAPTA PURWOKO
HAYATI Journal of Biosciences Vol. 13 No. 3 (2006): September 2006
Publisher : Bogor Agricultural University, Indonesia

The objectives of this experiment were to study the changes of gibberellic acid and total sugar content in flower developmental stages of mangosteen. The result showed that flower development of mangosteen consisted of four stages: induction, differentiation, maturition of flower organs, and anthesis. Floral induction was microscopically characterized by the swelling of the basal structure of the new shoot. It was found that induction stage of mangosteen flowering was characterized by sharp decrease of gibberellic acid (GA3, GA5, GA7) and increase of total sugar content of leaf. On the other hand, it was found that leaf of the non-flowering shoot apices had high gibbrellic acid and low total sugar. Key words: mangosteen, flowering, induction, gibberellic acid

Peran Hara N, P dan K pada Pertumbuhan dan Perkembangan Ratun Lima Genotipe Padi , Susilawati; Bambang Sapta Purwoko; Hajrial Aswidinnoor; Edi Santosa
Indonesian Journal of Agronomy Vol. 40 No. 3 (2012): 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 the research was to determine the roles of fertilizers application in improving rice ratoons. Statistical design used was a factorial randomized complete block design with three replications. The first factor was three levels of fertilizer rate (kg ha-1) i.e. 5 N + 27 P2O5; 45 N + 30 K2O; and 27 P2O5+30 K2O. The second factor was rice genotypes, i.e. Cimelati, Hipa-5 and Rokan varieties, and two lines of rice i.e. IPB106-7-47-DJ-1 and IPB106-F-8-1. The growth and production characters of main crops and ratoon were observed. The results showed that both genotypes and rates of fertilizer affected yield of ratoon. Following application of (kg ha-1) 45 N + 27 P2O5 three genotypes produced the highest ratoon, i.e. IPB106-7-47-DJ-1 and IPB106-F-8-1 lines and Rokan variety. Cimelati and Hipa-5 varieties produced higher number of ratoon with fertilizer rate (kg ha-1) 45 N + 30 K2O. Ratoon production of all genotypes ranged 38.1-56.6% of the main crop. This study clearly demonstrated that N, P and K fertilizer had important roles in increasing yield and yield components of rice ratoon. Keywords: fertilizer, productivity, rice genotypes, rice ratoon

Pemilihan Batang Bawah dan Teknik Penyambungan Tanaman Jarak Pagar (Jatropha curcas) untuk Meningkatkan Potensi Produktivitas >10 ton/ha dan Tahan Terhadap Cekaman Kekeringan dalam Upaya Mendukung Pengembangan Bioenergi . Hariyadi; Bambang Sapta Purwoko; . Djumali; Muhammad Cholid
Jurnal Ilmu Pertanian Indonesia Vol. 17 No. 3 (2012): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Development of Jatropha in large scale in dryland requires plant material with high productivity and ability to adapt drought conditions. Attempt to maintain the stability of jatropha production in dry land can be done through grafting technology by combining the advantages of prospective shoot section which has high yield potential as a scion and rootstock candidates from plant material that is able to adapt to limited water availability. Three activities were carried out at the first year experiments including (1) selection method of drought stress that is fast, accurate and simple under laboratory condition, and (2) adaptability study of jatropha rootstock candidates associated with drought stress in glasshouse and in the field. The result showed that the method of drought stress that was fast, accurate and simple under laboratory condition was that using polyethylene glycol. Three jatropha rootstocks, namely IP-3M, Sulawesi 117, dan NTB 047, are tolerant to drought stress associated with drought stress both in glasshouse and in the field condition.

Pengaruh Jarak Tanam terhadap Produksi Tiga Sayuran Indigenous Faiqotul Himma; Bambang Sapta Purwoko
Jurnal Hortikultura Indonesia Vol. 4 No. 1 (2013): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

ABSTRACTThe purpose this research was to determine the effects of plant spacing (population) on growth and yield of three indigenous vegetables (kemangi, kenikir, and katuk). The research was conducted at Cikabayan experimental farm in Darmaga, Bogor from April until November 2010. The experiment design was a Randomized Complete Block Design one factor with four treatments of plant spacing or population: 25 cm × 13. 33 cm (population 300 000 plants ha- 1), 25 cm × 16 cm (population 250 000 plants ha-1), 25 cm × 20 cm (population 200 000 plants ha- 1), and 25 cm × 26.67 cm (population 150 000 plants ha- 1), with three replications. Observations included plant height, number of leaves, number of branches, weight yields per plant and weight yield per plot. The experiment showed that plant spacing of kemangi did not influence vegetative growth, weight yields per plant and weight yield per plot. Plant spacing of kenikir influenced number of leaves, number of branches, weigth yields per plant. Plant spacing of katuk did not influence vegetative growth, weight yields per plant and weight yield per plot.Key words: katuk, kemangi, kenikir, population, vegetative growth, yieldABSTRAKPenelitian ini bertujuan untuk melihat pengaruh jarak tanam dalam populasi terhadap pertumbuhan dan hasil dari tiga sayuran indigenous (kemangi, kenikir, dan katuk). Penelitian dilaksanakan di Kebun Percobaan Cikabayan, Darmaga Bogor dari April hingga November 2010. Penelitian menggunakan Rancangan Kelompok Lengkap Teracak satu faktor dengan empat perlakuan jarak tanam: 25 cm × 13:33 cm (populasi 300 000 tanamanha-1), 25 cm × 16 cm (populasi 250 000 tanaman ha-1), 25 cm × 20 cm (populasi 200 000 tanaman ha-1), dan 25 cm × 26.67 cm (population 150 000 tanaman ha-1), dengan tiga ulangan. Pengamatan meliputi tinggi tanaman, jum lah daun, jumlah cabang, bobot hasil per plot. Jarak tanam kenikir berpengaruh terhadap jumlah daun, jumlah cabang, hasil per tanaman . Jarak tanam tidak berpengaruh terhadap pertumbuhan vegetatif , hasil per tanaman dan hasil per plot kemangi dan katuk.Kata kunci: katuk, kemangi, kenikir, populasi, pertumbuhan vegetatif, hasi

SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE Heni Safitri; Bambang Sapta Purwoko; Iswari Saraswati Dewi; Sintho Wahyuning Ardie
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p63-68

Salinity is one of the most serious problems in rice cultivation. Salinity drastically reduced plant growth and yield, especially at seedling stage. Several rice genotypes have been produced, but their tolerance to salinity has not yet been evaluated. The study aimed to evaluate salinity tolerance of rice genotypes at seedling stage. The glasshouse experiment was conducted at Cimanggu Experimental Station, Bogor, from April to May 2013. Thirteen rice genotypes and two check varieties, namely Pokkali (salt tolerant) and IR29 (salt sensitive) were tested at seedling stage. The experiment was arranged in a randomized complete block design with three replications and two factors, namely the levels of NaCl (0 and 120 mM) and 13 genotypes of rice. Rice seedlings were grown in the nutrient culture (hydroponic) supplemented with NaCl at different levels. The growth and salinity injury levels of the genotypes were recorded periodically. The results showed that salinity level of 120 mM NaCl reduced seedling growth of all rice genotypes, but the tolerant ones were survived after 14 days or until the sensitive check variety died. Based on the visual injury symptoms on the leaves, five genotypes, i.e. Dendang, Inpara 5, Inpari 29, IR77674-3B-8-2-2-14-4-AJY2, and IR81493-BBB-6-B- 2-1-2 were tolerant to 120 mM salinity level, while Inpara 4 was comparable to salt sensitive IR29. Hence, Inpara 4 could be used as a salinity sensitive genotype for future research of testing tolerant variety. Further evaluation is needed to confirm their salinity tolerance under field conditions.

Co-Authors , Hariyadi , Hasnam , Susilawati ,, Mawaddah ,, Usman . Djumali . Hariyadi Agus Purwito Agus Zainudin AHMAD JUNAEDI Akbar, Miftahur Rizqi Akhmadi, Gerland Amy Estiati Anggita Duhita Anindyajati Aniversari Apriana Anshori, Muhammad Fuad Ardie, dan Sintho Wahyuning Atmitri Sisharmini Atmitri Sisharmini Awang Maharijaya Azmi, Yudia Bambang Budi Santoso Bayu Pramono Wibowo Branco, Luis Manuel Buang Abdullah CHAIRUL CHAIRUL Cucu Gunarsih Cucu Gunarsih da Cunha, Rojino Daniel Happy Putra Danu Kuncoro Desta Wirnas Dewi, dan Iswari Saraswati DJUMALI DJUMALI DJUMALI DJUMALI, DJUMALI Dwi Guntoro Edi Santosa Eko Sulistyono Endah Retno Palupi Eny Widajati Etty Pratiwi, Etty Faiqotul Himma HAJRIAL ASWIDINNOOR Hapsoh Hariyadi Hariyadi Heni Safitri Heni Safitri I NYOMAN RAI I. H. Rahman Indrastuti Apri Rumanti Iskandar Lubis Iskandar Lubis Iswari S. Dewi Iswari Saraswati Dewi Iswari Saraswati Dewi Iswari Saraswati Dewi Iswari Saraswati Dewi Iswari Saraswati Dewi Jamhari Jamhari Kartika Kirana Sangga Mara, Kartika Kirana Sangga Kartina, Nita Kurniawan Rudi Trijatmiko Latifah Kosim Darusman Limbongan, Yusuf La’lang Lopes Hornai, Ermelinda Maria MOHAMMAD CHOLID MOHAMMAD CHOLID, MOHAMMAD Mohammad Syafii Muhamad Syukur Muhamad Yunus Muhammad Cholid Muhammad Jauhar Firdaus Munandar, Arief Munif Ghulamahdi Nafisah nFN CHAIRUL Nindita, Anggi Nita Kartina, Nita Nuha Hera Putri Nurul Khumaida Oteng Haridjaja Purbokurniawan . Purwoko, Bambang Sapta Purwoko Rahman, Rahayu Safitri Redy Gaswanto, Redy Reny Herawati Rina Hapsari Wening, Rina Hapsari Roedhy Poerwanto ROSIHAN ROSMAN ROSIHAN ROSMAN Rumanti, Indrastuti Apri Safitri, dan Heni Sakhidin Sani, Mutiyara Satoto Satoto Satoto, Satoto SATRIYAS ILYAS Saﬁtri, Heni Sintho Wahyuning Ardie Siti Nurhidayah Siti Nurhidayah Siti Yuriyah Slamet Susanto SRI HENDRASTUTI HIDAYAT SRI SETYATI HARJAD SRI SETYATI HARJADI Sudirman Yahya SUDIRMAN YAHYA SUDIRMAN YAHYA SUGENG SUDIATSO SUGENG SUDIATSO Sugiyanta Sugiyanta . Sugiyanta, dan Suhartini, dan Tintin Susilawati Susilawati TEUKU MUHAMMAD HANAFIAH OELIM Titin Budi Wahyuti Tri Joko Santoso TRI JOKO SANTOSO Trijatmiko, dan Kurniawan Rudi Trikoesoemaningtyas Ubad Badrudin Wibowo, Bayu Pramono Widyastuti, Yuni Willy Bayuardi Suwarno Wira Hadianto, Wira Yuni Widyastuti Yuni Widyastuti Yunus, dan Muhamad Yunus, Muhammad

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