p-Index From 2014 - 2019
7.513
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Penelitian Saintek INOTEK Jurnal Pendidikan dan Pembelajaran Jurnal Agrista Atom Indonesia Journal Jurnal Sains dan Seni ITS Jurnal Tanah Tropika Jurnal Sains Dasar Widyagogik Jurnal Teknologi Indonesian Journal of Agricultural Science Jurnal Hortikultura Jurnal AgroBiogen Jurnal Penelitian Tanaman Industri Jurnal Tanaman Industri dan Penyegar WACANA, Jurnal Sosial dan Humaniora Jurnal RISET Geologi dan Pertambangan Journal of Indonesian Economy and Business Brawijaya Law Journal Jurnal NERS DINAMIKA Jurnal Ilmiah Teknik Mesin The Indonesian Journal of Dental Research Jurnal Teknologi Pertambangan Biology, Medicine, & Natural Product Chemistry Traditional Medicine Journal Jurnal Perlindungan Tanaman Indonesia ENTHALPY Jurnal Tekun Jurnal Penelitian Karet Jurnal Ilmiah Pendidikan Pancasila dan Kewarganegaraan Jurnal Geologi dan Sumberdaya Mineral Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Ners dan Kebidanan (Journal of Ners and Midwifery) SAINS TANAH - Journal of Soil Science and Agroclimatology Caraka Tani: Journal of Sustainable Agriculture Majalah Farmaseutik Agric ANNALES BOGORIENSES Buletin Sumber Daya Geologi Constitutional Review ICoTE Proceedings TANJUNGPURA LAW JOURNAL Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Bioma Jurnal Perikanan Universitas Gadjah Mada LEKSIKA MIMBAR YUSTITIA KABILAH : Journal of Social Community Journal of Tropical Crop Science JURNAL CENDEKIA Economics and Finance in Indonesia Widya Balina BRAVO'S (Jurnal Prodi Pendidikan Jasmani & Kesehatan)
Articles

Resistance of Abaca Somaclonal Variant Against Fusarium

HAYATI Journal of Biosciences Vol 14, No 4 (2007): December 2007
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (107.408 KB)

Abstract

The objectives of this study were (i) to evaluate responses against F. oxysporum f.sp. cubense (Foc) infection of abaca variants regenerated using four different methods, (ii) to determine initial root length and plant height effects on survival of inoculated abaca variants, and (iii) to identify Foc resistance abaca variants. In the previous experiment, four abaca variant lines were regenerated from (i) embryogenic calli (TC line), (ii) ethyl methyl sulphonate (EMS) treated embryogenic calli (EMS line), (iii) EMS treated embryogenic calli, followed by in vitro selection on Foc culture filtrate (EMS+CF line), and (iv) EMS treated embryogenic calli, followed by in vitro selection on fusaric acid (EMS+FA line). All abaca variants were grown in a glasshouse and inoculated with Banyuwangi isolate of Foc (Foc Bw). Initial root length (RL) and plant height (PH) of the abaca variants were recorded before inoculation, while scores of plant damage (SPD), and their survival were recorded at 60 days after inoculation (DAI). The results showed that the initial RL and PH did not affect survival of the tested abaca variants. Regardless of their initial RL and PH, susceptible abaca variants died before 60 DAI while resistance ones still survived. Abaca variants regenerated from single clump of embryogenic callus showed an array of responses against Foc Bw infection, indicating the existence of a mix cells population. The Foc Bw resistance abaca variants were successfully identified from four tested abaca variant lines, although with different frequencies. However, more Foc Bw resistance abaca plants were identified from EMS+CF line than the others. Using the developed procedures, 8 resistance abaca plants were identified from abaca cv. Tangongon and 12 from abaca cv. Sangihe-1. Key words: Fusarium wilts resistance, in vitro selection, culture filtrate, fusaric acid, EMS

Nitrogen Resorption and Nitrogen Use Efficiency in Cacao Agroforestry Systems Managed Differently in Central Sulawesi

HAYATI Journal of Biosciences Vol 14, No 4 (2007): December 2007
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (85.519 KB)

Abstract

Cacao agroforestry is a traditional form of agriculture practiced by the people of Central Sulawesi. These agroforestry systems vary from a simple system following selective cutting of forest trees, to a more sophisticated planting design. The cacao was planted under remaining forest covers (CF1), under planted trees (CF2), and between shade trees Gliricidia sepium (CP). The objectives of this study were to quantify nitrogen use efficiency (N NUE) and nitrogen resorption in cacao agroforestry systems. The N NUE at the ecosystem scale (N NUEES) for the cacao agroforestry systems were compared with the natural forest. The results showed that CP produced the highest litterfall and cacao foliar nitrogen. CP and CF1 produced litterfall and the nitrogen resorption that not were significantly different. In contrast, CF2 produced the lowest litterfall, hence required lower nitrogen supply. The nitrogen resorption of CF2 was less than that of CF1 and CP. However, N NUE in cacao plant (N NUEC) of CF2 was higher than that of the CP. The N NUEES of either CF1 or CF2 were similar to that of the natural forest, but higher than that of the CP. Using shade trees in cacao plantations increased foliar nitrogen concentration, nitrogen resorption, N NUEC and N NUEES; thus, might be one reason for a higher productivity of cacao in unshaded systems. Key words: cacao agroforestry system, cacao foliar nitrogen, nitrogen resorption, N NUE

In Vitro Selection of Peanut Somatic Embryos on Medium Containing Culture Filtrate of Sclerotium rolfsii and Plantlet Regeneration

HAYATI Journal of Biosciences Vol 12, No 2 (2005): June 2005
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (238.487 KB)

Abstract

Attempts to identify somaclonal variants of peanut with resistance to Sclerotium stem rot disease due to infection of S. rolfsii were conducted. The objectives of this study were to develop in vitro selection method using culture filtrates of S. rolfsii, identify culture filtrate-insensitive somatic embryo (SE) of peanut after in vitro selection and regenerate peanut R0 lines originated from culture filtrate-insensitive SE. To achieve these objectives, peanut embryogenic tissues were cultured on selective medium containing various concentrations of S. rolfsii culture filtrates and sublethal concentration of the filtrates. Medium containing sublethal level of S. rolfsii culture filtrates was used to identify culture filtrate-insensitive SE of peanut. Subsequently, the selected SEs were germinated, plantlets were regenerated and preliminary tested against S. rolfsii. Results of the experiments showed that addition of S. rolfsii culture filtrates into medium for inducing peanut somatic embryos drastically reduced their growth and proliferation. S. rolfsii culture filtrates at 10% concentration has significantly reduced the number of proliferated SE per explant. However, sublethal level was achieved at 30% of culture filtrates concentration. Responses of five peanut cultivars against 30% of culture filtrates were similar, indicating they were similar in their susceptibility against S. rolfsii. A number of culture filtrate-insensitive SE were identified after culturing 1500 clumps of embryogenic tissue of peanut cv. Kelinci for three consecutive passages on medium containing 30% of culture filtrates. Germination of selected SE and regeneration of plantlet from culture filtrate-insensitive SE resulted in 50 peanut R0 lines. These lines have been grown in the plastic house and produced normal seeds for further evaluation. Results of S. rolfsii inoculation indicated the existence of chimera for insensitivity against S. rolfsii.

Yield Potential of Ten Peanut Introgression Lines derived from Crosses between Arachis cardenassii and A. hypogaea

HAYATI Journal of Biosciences Vol 12, No 3 (2005): September 2005
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (32.526 KB)

Abstract

Diploid species of peanut (Arachis cardenasii) showed no symptoms of PStV infection when mechanically inoculated with PStV. Some introgression lines derived from A. cardenasii and A. hypogaea hybridization have been introduced to Indonesia. Evaluation of their adaptability and yield potential were necessary before pursuing further utilization of these introgression lines. The objectives of this research were to determine yield potential of the introgression lines of peanut in green house and field conditions and to evaluate incidence of PStV infection in the field. Peanut plants were grown in the green house and in the field according to standard procedures for raising peanut. Results of the experiments showed that growth and developmental characters of the tested lines were similar between field and green house grown plants. The introgression lines generally exhibited higher secondary branches and longer to flower and harvest as compared to peanut cv. Gajah and Kelinci. The NC-CS30 line was identfied as having higher yield and bigger seed size as compared to standard peanut cultivars (Gajah and Kelinci). Therefore, NC-CS30 germplasm may be further developed as commercial peanut cultivar or be used as donor for peanut breeding in Indonesia.

Regeneration Capacity of Indica Rice cv. Bengawan Solo in Two Types of Regeneration Media through Microprojectile Bombardment

HAYATI Journal of Biosciences Vol 12, No 4 (2005): December 2005
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (69.957 KB)

Abstract

Factors affecting the success of gene delivery into cells/tissues of rice mediated by particle bombardment have been investigated. However, their effects on regeneration capacity of rice explants have not been investigated. Objectives of this experiments were to evaluate the effects of particle bombardment on regeneration capacity of indica rice cv. Bengawan Solo calli and the effects of four regeneration media on the development of bombardment calli. Calli of indica rice were initiated from mature seeds on callus-inducing medium. They were transferred on osmoticum containing medium prior to bombardment and maintained on the medium up to two days. Particle bombardment was conducted at 16 cm bombardment distance, 27 cm Hg helium pressure and using standard procedures for preparation of microprojectile particles. The bombarded calli were cultured on RNB or RMS regeneration medium, with or without spermidine addition. Results of the experiment indicated particle bombardment affected the survival of explants of indica rice but did not affect the development of the explants. The development of explants was rather dependent on the regeneration media than on the particle bombardment treatment. RMS medium was better than RNB medium for shoots inducing from bombarded indica rice explants.

In Vitro Selection of Abaca for Resistance to Fusarium oxysporum f.sp. cubense

HAYATI Journal of Biosciences Vol 14, No 2 (2007): June 2007
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (171.252 KB)

Abstract

Abaca (Musa textilis Nee) is an important industrial crop. However, the cultivation of this crop in Indonesia is hampered by Fusarium wilt (Panama disease) as a result of Fusarium oxysporum f.sp. cubense (Foc) infection. The objectives of this study were to (i) evaluate inhibitory effects of culture filtrates (CF) of three Foc isolates (Banyuwangi, Malang, and Bojonegoro isolates) on shoot growth of abaca cv. Tangongon and Sangihe-1, (ii) determine sublethal concentration of Foc CF, (iii) isolate variant cells/tissues which are insensitive against Foc CF and regenerate plantlets from the variants, and (iv) evaluate responses of the plantlets against Foc infection. The results of the experiment showed that even though CF of all Foc isolates inhibited abaca’s shoot growth, CF of Foc Banyuwangi isolate showed the most inhibitory effect. Sublethal concentration of CF of Foc Banyuwangi isolate was 40%. From abaca cv. Tangongon, 326 shoots were regenerated from CF insensitive embryogenic calli while from Sangihe-1 - 176 shoots were regenerated. Following acclimatization and Foc inoculation using detached-leaf dual culture test, a total of four immune, two resistant, and two moderately resistant plantlets were identified out of 45 tested variants of Tangongon. On the other hand, only two resistant and one moderately resistant plantlets were identified out of 10 tested variants of Sangihe-1. Key words: Fusarium wilt, in vitro selection, culture filtrate, ethylmethanesulphonate (EMS), Musa textilis Nee

Pengaruh Perlakuan Rizo-bakteri Pemacu Pertumbuhan Tanaman terhadap Viabilitas Benih serta Pertumbuhan Bibit Tanaman Cabai

Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 34, No 1 (2006): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (191.441 KB)

Abstract

The objectives of this experiment were to evaluate effects of seed treatment using local isolates of rhizobacteria on seed germination and seedling growth of hot pepper. Hot pepper seeds were treated with rhizobacterium isolates of Bacillus sp., Pseudomonas sp., or Serratia sp. and germinated using standard germination procedures. Subsequently, seedlings were transplanted into plastic pots containing a mixture of potting media. Germination was recorded at 7 and 14 days while seedling growth were recorded at 6 and 8 weeks after transplanting. Results of the experiments showed seed treatments using rhizobacteria significantly increased viability of the treated hot pepper seeds (percentage of increases as compared to untreated seeds in seed germination  - up to 27%, PTM 11%, vigor index 31%, SPT 29%, KCT 29%, and reduction of T50 by 0.75 days). Some of the treatments also promoted growth of hot pepper seedlings. Although all of the rhizobacteria synthesized IAA, growth promoting effects of the rhizobacteria may not only be due to the synthesized growth regulator. Other factors may have involved in the possitive effects of the rhizobacteria on hot pepper seed germination and seedling growth.   Key words:  Rhizobacteria, indole-acetic acid, PGPR, vigor, viability, seedling growth

UJI ADAPTASI VARIETAS UNGGUL BARU TERHADAP WERENG HIJAU DAN PENYAKIT TUNGRO DI KABUPATEN MERAUKE, PROVINSI PAPUA

Agric Vol 29 No 1 (2017)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Original Source | Check in Google Scholar | Full PDF (169.811 KB)

Abstract

Tungro is one of the important diseases in rice plants caused by two types of viruses were rod virus (rice tungro bacilliform virus) and spherical virus (rice tungro spherical virus) that was transmitted by the green leafhopper (GLH) Nephotettix virescens. The purpose of this study to determine the adaptation of new improved varieties against GLH and tungro disease in Merauke, Papua Province. Research conducted at Tanah Miring District, Merauke, Papua Province between February and June 2010. The study was a randomized block design with three replications. The treatment consisted of 11 varieties, namely Inpari 1, Inpari 2, Inpari 3, Inpari 4, Inpari 5 Merawu, Inpari 6 Jete, Inpari 7 Lanrang, Inpari 8, Inpari 9 Elo, Inpari 10 Laeya, and Ciherang. Observations included the intensity of tungro and GLH population density at the age of rice plants of 1, 2, 3, and 4 weeks after planting (WAP). In addition, it was observed also the yield components of rice. The results showed that the GLH population density and the intensity of tungro disease was not significantly different at the 11 varieties tested. GLH attack had been found in 1 WAP with an average population density of 4.18 individual/20 single swing. GLH increases with the age of the rice crop with an average population density in 2 WAP (20 individual), 3 WAP (103.27 individual), and 4 WAP (154.15 individual) per 20 single swing. Tungro disease intensity in 11 varieties began were found in 3 WAP on average by 0.16% and increased at 4 WAP on average by 0.28%. Varieties significant effect on yield components such as plant height, panicle length, number of total grain/panicle, percentage of filled grain, 1000 grain weight and productivity except the number of panicles/clump.

Responses of Soybean Mutant Lines to Aluminium under In Vitro and In Vivo Condition

Atom Indonesia Vol 37, No 3 (2011): December 2011
Publisher : PPIKSN-BATAN

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1206.711 KB)

Abstract

The main limited factors of soybean plants expansion in acid soil are Aluminium (Al) toxicity and low pH. The best approach to solve this problem is by using Al tolerance variety. In vitro or in vivo selections using selective media containing AlCl3 and induced callus embryonic of mutant lines are reliable methods to develop a new variety. The objectives of this research are to evaluate response of soybean genotypes against AlCl3 under in vitro and in vivo condition. Addition of 15 part per million (ppm) AlCl3 into in vitro and in vivo media severely affected plant growth. G3 soybean mutant line was identified as more tolerant than the control soybean cultivar Tanggamus. This mutant line was able to survive under more severe AlCl3 concentrations (15 ppm) under in vitro conditions. Under in vivo conditions, G1 and G4 mutants were also identified as more tolerant than Tanggamus since they produced more pods and higher dry seed weigh per plant. Moreover, G4 mutant line also produced more dry seed weight per plant than Tanggamus when they were grown on soil containing high Al concentration 8.1 me/100gr = 81 ppm. Al+3. Received: 20 December 2010; Revised: 29 November 2011; Accepted: 4 December 2011

USING KAHOOT TO INCREASE STUDENTS’ ENGAGEMENT AND ACTIVE LEARNING: A GAME BASED TECHNOLOGY TO SENIOR HIGH SCHOOL STUDENT

ICoTE Proceedings Vol 2 (2018): ICoTE Proceedings 2
Publisher : ICoTE Proceedings

Show Abstract | Original Source | Check in Google Scholar

Abstract

 Students, particularly in senior high school often state that they like instructors who employ active learning strategies to get students engaged with the class topic. Sometimes, large teaching classes are difficult to get students to participate in classroom activities and assess whether they are truly learning or not. It is why providing a game is an appropriate way to create a fun and interactive engagement for students to learn and comprehend the information. “The value of games as a vehicle for teaching concepts while inspiring students is now well accepted at almost all levels of education” Becker  (2001). Kahoot is known as a technology-based instructional tool, it is a popular eLearning tool that easily can be used to add vitality, student engagement, and meta-cognitive supports with limited instructor or student training required. This study aims to analyze the use of Kahoot in engaging students’ active response in learning English. This is a classroom action research. Descriptive analysis is conducted to gain the students action and response during teaching and learning processes proposed by Kemmis and McTaggart in Hopkins (2008). The subjects of this study are twelve grade students of SMAN 1 Serawai, Kabupaten Sintang.  

Co-Authors Abdul Rachmad Budiono Adi Purwanto Adisyahputra Adisyahputra, Adisyahputra AF. Ismiyanto, AF. Afrizal Malik Agung Endro Nugroho AGUS PURWITO Agus Rachmat Agus Sutanto Agustinus Yuswanto, Agustinus AHMAD RIDUAN Ali Husni Andrie Al Kausar Anita Yuliyanti Aniversari Apriana Anjar Hermadi Saputro, Anjar Hermadi Ansyori Ansyori, Ansyori Anto, Tri Pudji Apriana, Anniversari Arief Hidayat Ariesta Kartika Sari Arif Usman Asep Setiawan Aswaldi Anwar Atmitri Sisharmini Awidinnoor, Hajrial BAMBANG HELIYANTO Bernadetta Octavia Broto Kardono Budi Mulyaningsih Budiman Sudia, Budiman Cartealy, Imam Civi Catur Hermanto Christoph Leuschner Chusni Ansori Clarry Sada Darmawan Darmawan Darmawan Saptadi, Darmawan DEWI SUKMA Diah Manohara Diani Damayanti, Diani Dinarti, D Dini Dinarty, Dini DINI NURDIANI Dini Yuliani Diny Dinarti Djoko Santoso Dyah Mellawati, Dyah Eddy Zulkarnaini Gaffar, Eddy Zulkarnaini EDI GUHARDJA Elina, Juanita ELSJE T. TENDA, ELSJE T. Emir Ramadhan, Emir ENDANG PUDJIHARTATI Endang Susilawati Enni Suwarsi Rahayu Erick Raynalta, Erick Erna Prawita Setyowati Fajar Laksono FETRINA OKTAVIA Fitri Yanti Fitri, Lini Gatot Sutapa Gatut Yudoyono Glory Resia Raraswati, Glory Resia Gusti Ayu Kade Sutariati H Yulipriyanto, H H. Aswidinnoor HAJRIAL ASWIDINNOOR Handayani, Anisa Ragil Harsini Harsini, Harsini Hartati, Raden Roro Sri Haryadi Permana Hasibuan, Hoiruddin Hasriadi Mat Akin Hendra Bakti Hengky Novarianto Heni, Veronika Heri Nurohman Holifah, Holifah I Nyoman Nurjaya I. Setiawan, I. IBNUL QAYIM IDA HANARIDA SOMANTRI Ika Mariska Ikhsanudin, Ikhsanuddin Indah Setyowati, Indah Indah Sulistiyorini Iskandar Iskandar Ismail Maskromo Iwa Sutardja, Iwa Iwan Setiawan JAJAH KOSWARA Kartika, Elsa Putri Khoerul Anwar Kurniawan R. Trijatmiko Kurniawan Rudi Trijatmiko, Kurniawan Rudi Kuswanhadi Kuswanhadi, Kuswanhadi Lestari, Lies Amin Liling Triyasmono, Liling Lini Veriony, Lini M. Herman Marchaban Marchaban, Marchaban MEITY A. TULALO, MEITY A. Meynarti Sari Dewi Ibrahim Misar, Misar Muchamad Arif, Muchamad Muhamad Herman Muhammad Fajar Sidiq Widodo MUHAMMAD HERMAN Mutia Dewi Yuniati Nata Suharta Neviana Wahyuni Nihayati, Hanik Endang NUR AJIJAH, NUR Nurlely Nurlely NURMEGAWATI NURMEGAWATI, NURMEGAWATI Nursalam Nursalam Nurul Khumaida Purwaningsih Purwaningsih Purwoko, Devit Rahmi Safarina Fauziah, Rahmi Safarina Regina Regina Reni Indrayanti, Reni Retno Murwanti Ria Lidyawita, Ria Rini Setyowati, Rini ROEDHY POERWANTO Roma, Kholifuddin Rr Sri Hartati, Rr Sri Rr. Sri Hartati Rubiyo Rubiyo RULLY DYAH PURWATI S. Indarto, S. Saefudin Saefudin Safaat, Muchammad Ali SAID HARRAN Saiful Saiful Samhuddin Samhuddin, Samhuddin Sarif, La Sarwono Hardjowigeno Satino Satino SATRIYAS ILYAS Satya Nugroho Setyowati E P, Setyowati E Sholeh Avivi Sidharta, Noor SISWANTO SISWANTO Siti Sunarintyas SOEKISMAN TJITROSEMITO Sri H Hidayat, Sri H Sri H. Hidayat Sri Hendrastuti Sri Indarto Sudibyo Martono Sugiri, Bambang Sugiri, Bambang Sugiri, Bambang Suhandoyo Suhandoyo, Suhandoyo Suhartini Suhartini SUKENDAH SUKENDAH, SUKENDAH Sutapa, Y. Gatot Swastika, Maria Syafaruddin Syafaruddin Syamsudin Syamsudin T A F Sumantri Taufik Hidayat Teti Arabia Teuku Tajuddin Toto Rusianto TRI JOKO SANTOSO TRIADIATI TRIADIATI Umar Anggara Jenie urai salam Wahyu Aryando, Wahyu Wawong Dwi Ratminah, Wawong Dwi Wening Enggarini Widiatmaka Widiatmaka Widodo Widodo Widodo, Dewita Fitri Wilamarta, Stephanie Winarno, Bambang Wiwin Ambarwulan Yayat Sudrajat Yogi Suryadi, Yogi YS Bintari, YS Yulianti Yulianti Yuliasti Yuliasti Yulis Setiya Dewi, Yulis Setiya YUSNITA YUSNITA Yusniwati Yusniwati Yuspian Gunawan, Yuspian