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PERTUMBUHAN DAN HASIL TANAMAN MELON (CUCUMIS MELO L.) PADA KOMPOSISI MEDIA TANAM DAN FREKUENSI PEMUPUKAN YANG BERBEDA Iqbal, Muhammad; Barchia, Faiz; Romeida, Atra
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 21, No 2 (2019)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.21.2.108-114

Abstract

[GROWTH AND YIELD OF MELON PLANT (Cucumis melo L.) IN DIFFERENT COMPOSITION OF PLANT MEDIA AND DIFFERENT FREQUENCY OF NPK APPLICATION]. This study aims to determine the best combination of planting media composition and frequency of NPK fertilization on the growth and yield of melon plants. The research was conducted in October 2018 - January 2019 on the land located in Bentiring, Muara Bangkahulu District, Bengkulu City. The design used in this study was a Completely Randomized Design (CRD) consisting of two factors and three replications. The first factor was the composition of the media for plant growth, which consists of three different media composition, namely: sand: soil: manure (30%: 50%: 20%), sand: soil: manure (10%: 60%: 30%), and sand: soil: manure (20%: 70%: 10%). The second factor is the frequency of NPK fertilization consisting of four types of fertilization, namely: 1 time NPK fertilization during planting, 2 times NPK fertilization during planting and 10 days after planting (dap), 3 times NPK fertilization during planting, 10 dap and 20 dap, and 4 times NPK fertilizing during planting, 10 dap, 20 dap and 30 dap. The dose given is 15 g/plant (equivalent to 800 kg/ha) and NPK fertilizer given in the form of compound fertilizer N: P: K 16:16:16. The results showed that the best composition of the planting media was found in the treatment of sand media: soil: manure (10%: 60%: 30%). The best fertilizing frequency was found in the treatment of NPK fertilizing 4 times during planting, 10 dap, 10 dap, 30 dap, and the combination of both produces the most substantial plant length, weight, and fruit circumference
OPTIMASI PERTUMBUHAN DAN MULTIPLIKASI LINI KLON PLBS ANGGREK SPATHOGLOTTIS PLICATA BLUME MELALUI MODIFIKASI KOMPOSISI MEDIUM MS DAN SITOKININ Romeida, Atra; Hadi Sutjahjo, Surjono; Purwito, Agus; Sukma, Dewi; Rustikawati, ,
Jurnal Hortikultura Indonesia Vol. 4 No. 1 (2013): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.907 KB) | DOI: 10.29244/jhi.4.1.1-8

Abstract

ABSTRACTIn order to enhance the multiplication of  Protocorm Like Bodies (PLBs)  of Spathoglottis  plicataorchid  in vitro, several combinations of vitamin, sucrose concentration, and cytokinin were tested.   Thisexperiment was arranged in Completely Randomized Design (CRD) with two factors. The first factor was combination  of  vitamin  composition  and  sugar  concentrations  in  the medium  which  consisted  of  four different  combinations  (J1 = vitamin  MS + sucrose 30 g  L-1, J2 = vitamin B5 + sucrose 30 g  L-1, J3= vitamin  MS  + sucrose  40  g  L-1,  J4  =  vitamin  B5  +  sucrose  40  g  L-1).  The  second factor  was  seven combinations  of  cytokinin types and its  concentrations (S0 = without cytokinin (control), S1 =    20  ?M BA, S2 = 40  ?M BA, S3 = 20 ?M kinetin,   S4 = 40  ?M  kinetin, S5 = 75  ml L-1 coconut milk, and S6 = 150 ml L-1 coconut milk).  PLBs  were used as  explant  and were  grown on MS  solid medium containing various vitamin, sucrose, and cytokinin combinations  as mentioned above.  Growth and multiplication of PLBs were based on  the number of PLBs per explant, number of plantle ts per explant, number of roots formed, plantlet height and visual appearance and performa nce of the observations at 6  MST.  The best growth  and  multiplication  of  PLBs  orchid S.  plicata  was  produced  on  MS  medium  modified  with  B5 vitamins  and 30 g  L-1 sucrose, followed by those and  on MS medium enriched  with  75 ml  L-1 coconut milk and on MS medium supported by 20 ?M BA.Key words : B5, benzyl adenine, coconut water, in vitro , orchid, sugar concentration,  vitamin compositionABSTRAKPercobaan ini bertujuan untuk mendapatkan formulasi kom posisi vitamin dan konsentrasi gula medium,serta jenis dan  konsentrasi sitokinin terbaik dalam menginduksi pertumbuhan dan  multiplikasi  lini klon PLBsanggrek Spathoglottis plicata dalam jumlah yang besar  secara  in vitro. Percobaan ini menggunakan Rancangan Acak Lengkap (RAL) Faktorial.  Eksplan yang digunakan adalah PLBs  yang ditanam pada  medium Murashige dan  Skoog  (MS)  yang  telah   dilakukan  modifikasi  sesuai  dengan  perlakuan.  Faktor  pertama  adalah  formulasi komposisi vitamin dan konsentrasi gula yang terdiri dari empat macam formulasi yaitu J1 = vitamin  MS + gula 30 g L-1, J2 = vitamin B5 + gula 30 g  L-1, J3= vitamin MS + gula 40 g L-1, J4 = vitamin B5 + gula 40 g  L-1. Faktor kedua adalah penambahan sitokinin (3 jenis dengan 2 taraf konsentrasi) yang terdiri dari 7 kombinasi perlakuan yaitu S0 = tanpa sitokinin (kontrol), S1 = BA 20 ?M, S2 = BA 40 ?M, S3 = kinetin 20 ?M,  S4 = kinetin 40 ?M, S5 = air kelapa 75 ml L- 1, dan S6 = air kelapa 150 ml  L-1. Pertumbuhan dan multiplikasi PLBs anggrek S. plicataterbaik  dihasilkan   pada medium  MS  dengan  modifikasi  vitamin  B5  dan  konsentrasi  gula  30  g  L-1dan  pada medium MS dengan penambahan air kelapa 75 ml L- 1 serta pada medium MS dengan penambahan BA 20  ?Mdengan  kriteria  jumlah  PLBs akhir dan  jumlah  planlet  akhir  tertinggi,  jumlah  akar  dan  tinggi  tanaman serta penampilan visual hasil pengamatan pada 6 minggu setelah tanam.Kata kunci : air kelapa, anggrek, B5, benzyl adenin, in vitro, komposisi vitamin, konsentrasi gula
UJI ADAPTASI VARIETAS UNGGUL BARU PADI SAWAH UNTUK OPTIMASI LAHAN TADAH HUJAN BERWAWASAN LINGKUNGAN DI KABUPATEN SELUMA PROVINSI BENGKULU Yartiwi, Yartiwi; Romeida, Atra; Utama, Satria Putra
Naturalis: Jurnal Penelitian Pengelolaan Sumber Daya Alam dan Lingkungan Naturalis, Vol 7 No 2 Oktober 2018
Publisher : Naturalis: Jurnal Penelitian Pengelolaan Sumber Daya Alam dan Lingkungan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/naturalis.v1i3.6027

Abstract

Penggunaan varietas adaptif terhadap agroekosistem sangat penting dalam usaha budidaya padi dilahan sawah tadah hujan. Tujuan penelitian adalah untuk memperoleh varietas yang adaptif di lokasi pengujian berdasarkan keragaan pertumbuhan yang dicapai masing-masing varietas. Penelitian dilaksanakan pada bulan Oktober 2017 - Maret 2018 di Desa Karang Dapo Kecamatan Semidang Alas Maras Kabupaten Seluma Provinsi Bengkulu, di Laboratorium Tanah BPTP Bengkulu dan di Laboratorium Balai Besar Pasca Panen. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 2 faktor. Faktor pertama adalah perlakuan varietas (V) yang terdiri dari 5 taraf perlakuan. Faktor kedua adalah paket pupuk (P) yang terdiri dari 2 taraf, sehingga diperoleh 10 kombinasi perlakuan. Setiap kombinasi perlakuan diulang sebanyak 3 kali. Jumlah tanaman sampel 10 tanaman/ulangan. Hasil Penelitian bahwa varietas Inpari 38, Inpari 39, Inpari 41 dan Situbagendit adaptif pada lingkungan biologi dan kimia dengan penggunaan rekomendasi pemupukan PUTS dan Katam pada lahan sawah tadah hujan di Desa Karang Dapo Kecamatan Semidang Alas Maras Kabupaten Seluma Provinsi Bengkulu.Kata Kunci: VUB, Padi Sawah, Lahan Tadah Hujan
VARIASI GENETIK MUTAN ANGGREK SPATHOGLOTTIS PLICATABLUME. BERDASARKAN MARKER ISSR Romeida, Atra; Sutjahjo, Surjono Hadi; Purwito, Agus; Sukma, Dewi; Rustikawati, ,
Jurnal Agronomi Indonesia (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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.864 KB) | DOI: 10.24831/jai.v40i3.6829

Abstract

Mutants of Spathoglottis plicataBlume were obtained from plants treated with Gamma Irradiation at 30-100 Gray. The mutants showed variations in the flower morphology. The objective of this experiment was to identify genetic variations of orchids S. plicataand its mutants using inter-simple sequent repeat (ISSR) markers. The amplified product of 10 ISSR primers produced 360 bands and 71 ISSR of the loci (90.14%) were polymorphic. The coefficient of similarity and principal component analysis produced five major groups with similarity coefficient of 0.68. The goodness of fit correlation matrix value reached 0.91. Therefore the ISSR isa good marker for identification of S. plicatamutants.Keywords: gamma irradiation, ISSR marker, mutant, orchid
Acclimatization of Pencil Orchid (Papillionanthe hookeriana Rehb.f) as Affected by Different Types of Planting Media and Fertilizing Frequency Febriyani, Sustri; Ganefianti, Dwi W; Romeida, Atra; Herawati, Reny
Akta Agrosia Vol 22, No 1 (2019)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1098.752 KB) | DOI: 10.31186/aa.22.1.36-41

Abstract

Acclimatization is a process of an environmental adaptation from heterotrophic conditions to autotrophic conditions. In order to be successful in acclimatization, it requires proper planting media and enough nutrition supply. The objective of this experiment were to determine the best planting media and the best spraying frequency of leaf fertilizer on Pencil orchid growth during acclimatization period.  The experimental design used was Randomized Complete Block Design, arranged in factorial (2 factors, 3 replications). The first factor was type of planting media: Coconut Coil, Rockwool, Wood Shavings, and Fern Roots. The second factor tested was fertilizing frequencies: every 2 days, every 3 days, and every 4 days. The results showed that the best media for acclimatization of Pencil orchid was fern root fertilized every four days, the best media for growing Pencil orchid was fern root and Wood Shavings, and the best fertilizing frequency to promote Pencil orchid growth were every 3 days or every 4 days.Keywords: Pencil orchid, acclimatization, planting media, fertilization
Potensi Produksi Enam Hibrida Jagung pada Ultisol di Provinsi Bengkulu Suprijono, Eko; Rustikawati, Rustikawati; Romeida, Atra; Gustian, Meko
Akta Agrosia Vol 18, No 2 (2015)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4289.503 KB) | DOI: 10.31186/aa.18.2.32-39

Abstract

Ultisol is one of marginal land type quite extensively presence in Indonesia, including the province of Bengkulu. The use of varieties tolerance to acidity stress is the best manner to utilize of this type of land with relatively low cost and environmentally friendly. The objective of this research was to evaluate theyield potential of six maize hybrids developed to soil acidity tolerance. The experiment was conducted at the Experimental Farm Medan Baru, Kandang Limun Village, Muara Bangkahulu District, Bengkulu City, from August to November 2015. The experiment was arranged in a randomized completely block design with four replications. As the treatment were newly developed maize hybrids, namely CT5, CT8, CT9, CT13, CT14 and CT15. The variables measured were cob length, cob diameter, 100-seed weight and the estimated yield/ha. Qualitative variables supporting to corn yield were the cob position, seed color, seed type and seed row arrangement. The results indicated that the hybrid CT8 showed the highest estimated yield in Ultisol among hybrids evaluated, with the estimation of 6.5 tons per hectare. Qualitatively, theseeds of hybrid CT8 were a horse tooth type, pale yellow color, and stright line arrangement.
IDENTIFICATION OF M4 GAMMA IRRADIATED MAIZE MUTANT BASED ON RAPD MARKERS Rustikawati, Rustikawati; Suprijono, Eko; Romeida, Atra; Herison, Catur; Sutjahjo, Surjono H.
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
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.v34i2.102

Abstract

Gamma irradiation to induce mutation in plant has been used intensively since several decades ago.  On maize, 275 Gy gamma irradiation have been known to increase genetic variability indicated by their morphological variation.  Identification on genetic changes by molecular technique is important to answer whether there is mutation happening on DNA level of the plants.   The objective of this research was to identify RAPD marker polymorphism on gamma irradiation mutants compared to their parents.  The initial step of the research was to select random primers could positively amplify the maize DNA.  The result showed that selection on 60 random primers yielded 15 primers that positively amplified the maize DNA.  Amplification on both mutants and their parents by those 15 selected primers indicated that only 5 primers yielding polymorphism between mutants and their parents.  Polymorphisms on mutant G1, G3 and G6 were detected on one locus, meanwhile on mutant G7, G8 and G9 were on two loci.
Adopsi Petani Terhadap Teknologi Jajar Legowo Padi Sawah Di Kelurahan Rimbo Kedui Kecamatan Seluma Selatan Kabupaten Seluma Herlina, Yeni; Chozin, Mohammad; Romeida, Atra
Naturalis: Jurnal Penelitian Pengelolaan Sumber Daya Alam dan Lingkungan Vol 8, No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/naturalis.8.2.9217

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Program GP-PTT sebagai kelanjutan dari Program SL-PTT yang menerapkan teknologi jajar legowo merupakan suatu upaya yang telah dilakukan oleh pemerintah untuk meningkatkan produktifitas lahan persawahan yang ada melalui pemberdayaan petani. Untuk mengetahui tingkat keberhasilan teknologi jajar legowo dalam program tersebut maka perlu dievaluasi tingkat penerapan komponen-komponennya yang dipengaruhi oleh berbagai faktor. Tujuan dari penelitian ini adalah untuk mengidentifikasi dan mengevaluasi faktor?faktor sosial ekonomi (umur, pendidikan, luas lahan, status kepemilikan  lahan, jumlah anggota keluarga, pengalaman usahatani, pendapatan) dan persepsi petani terhadap teknologi jajar legowo padi sawah di Kelurahan Rimbo Kedui kecamatan Seluma Selatan Kabupaten Seluma. Penentuan daerah penelitian dilakukan secara sengaja yaitu petani padi sawah yang telah mengikuti kegiatan program SL-PTT dan GP-PTT yang menerapkan teknologi jajar legowo. Data yang digunakan adalah data primer dan data sekunder yang diperoleh dari hasil survei di lapangan. Metode penentuan sampel menggunakan teori yang dikemukakan oleh Arikunto Suharsimi untuk jumlah populasi diatas 100 maka diperoleh sampel sebanyak 40 orang petani. Penentuan faktor-faktor yang memetakan tingkat adopsi dilakukan dengan analisis regresi logistik dengan transformasi logit. Hasil analisis secara deskriptif menunjukkan bahwa sebanyak 98,82% petani mempunyai persepsi baik terhadap sifat inovasi teknologi jajar legowo dan 62,5% petani menerapkan sesuai anjuran sedangkan 37,5% petani menerapkan tidak sesuai anjuran. Hasil analisis logistik menunjukkan bahwa pendidikan dan pendapatan usahatani merupakan faktor penting dalam menentukan tingkat adopsi teknologi jajar legowo oleh petani.Kata Kunci : adopsi, petani, jajar legowo, padi sawah
PEMBERDAYAAN MASYARAKAT PESANTREN AR-RAHMAH, REJANG LEBONG DALAM MEMANFAATKAN LAHAN PEKARANGAN DENGAN BUDI DAYA BAWANG MERAH Marlin, Marlin; Sitorus, Antoni; Solihin, Muhamad; Romeida, Atra; Herawati, Reny
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 6 No. 1 (2020): Agrokreatif Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.6.1.53-61

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The community empowerment in the area of Ar-Rahmah pesantren, Air Meles Atas Village, Rejang Lebong Regency, Bengkulu was intended to increase the income of pesantren to finance poor students, and at the same time to enhance the ability of pesantren in carrying out educational and teaching activities. Community service activities carried out in the form of assistance activities in shallot cultivation in the yard of the Ar-Rahmah Pesantren. The assistance program is carried out for 4 months, with such stage of activities as: the preparation stage for managers, teachers, students and farmers around the pesantren, seed selection, land preparation, planting, maintenance, harvesting, and post-harvest. The evaluation result showed that the community participation and involvement in the shallot cultivation assisting program were considered high. The highest participation rates were during the selection of seed activity (73%) and planting activity (100%). Meanwhile, the lowest participation rate was during maintenance activities (27%). The evaluation results showed the level of participants? satisfaction is high (90?100%) on the implementation of assistance activities. The harvested shallots could increase the income of the boarding school which can be used to help the education cost and education progress of the boarding school. The participation of the entire community would be encouraged so that the success of empowerment program could be felt by the entire community. The community empowerment program need to be carried out continuously, so it would enhance the welfare of and self-sufficiency of the community.
BIO-FORTIFIED COMPOST AS A SUBSTITUTE FOR CHEMICAL N FERTILIZER FOR GROWTH, N ACCUMULATION, AND YIELD OF SWEET CORN Marwanto, Marwanto; Wati, Shinta Puspita; Romeida, Atra; Handajaningsih, Merakati; Adiprasetyo, Teguh; Hidayat, Hidayat; Purnomo, Bambang; Murcitro, Bambang Gonggo; Siswanto, Usman
Akta Agrosia Vol 22, No 2 (2019)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.22.2.84-94

Abstract

ABSTRACTFinding the appropriate method of fertilizer application to simultaneously enhance farm productivity and ensure ecosystem sustainability has been receiving a lot of attention. A field experiment was carried in the Research Plot Agriculture Faculty Bengkulu University Campus Indonesia in 2017. The purpose of this study was (1) to assess the significant effects of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC) under equal N conditions on growth, N accumulation, and yield of sweet corn, and (2) to determine the appropriate level to which inorganic N fertilizer could be reduced and equivalently replaced by bio-fortified compost to promote sweet corn growth and yield. The treatments consisted of six different proportions of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC). Each treatment was designed on the basis of equal amount of total N input from a combination of both fertilizers (138 kg N ha-1).  They were arranged in a randomized block design with 3 replications. They included (1) 100% IF plus 0% BC, (2) 75% IF plus 25% BC, (3) 50% IF plus 50% BC, (4) 25% IF plus 75%, (5) 0% IF plus 100% BC, and (6) no IF and no BC. The results showed that the increasing proportion of IF replaced by BC resulted in an increase for all variables (except for plant height) but they decreased when 100% IF substitution with 100% BC was applied. Among the partial substitution treatments, 50% IF plus 50% BC consistently produced the best growth, N accumulation, and yield increase. Treatments of 50% IF plus 50% BC and 25% IF plus 75% BC produced the highest green cob weight with husk per plot (10.74 ? 10.84 kg plot-1), which was 16% to 19% higher than treatment of 100% IF plus % BC. The three partial substitution treatments produced crop yield components as good as treatment of 100% IF plus 0% BC. Treatment of 0% IF plus 100% BC reduced plant growth, N accumulation, and crop yield and its components. The appropriate level to which IF could be reduced and equivalently replaced by BC was at the range of 25% to 75%. Hence, a suitable replacement of inorganic N fertilizer with bio-fortified compost is considered a reasoned way to simultaneously increase crop yield and reduce environmental degradation.Keywords: organic fertilizer, chemical fertilizer, bio-fortification, chemical fertilizer substitution, bio-fortified compost