scholarly journals Peningkatan Gelombang Elektromagnetik Menurunkan Laju Perkecambahan Padi Beras Merah Cenana Jatiluwih (Oryza Sativa Var Barac Cenana)

2018 ◽  
Vol 6 (2) ◽  
pp. 106
Author(s):  
Viqtor Arya Nugraha ◽  
I Made Anom S. Wijaya ◽  
I Wayan Widia
Keyword(s):  
Electromagnetic Field ◽  
Oryza Sativa ◽  
Seed Germination ◽  
Electromagnetic Fields ◽  
Immersion Time ◽  
Red Rice ◽  
Rice Varieties ◽  
Local Varieties ◽  
Two Factors ◽  
Proper Immersion

Penelitian ini bertujuan untuk mengetahui pengaruh pemaparan medan elektromagnetik terhadap padi varietas lokal serta mengetahui medan elektromagnetik dan waktu perendaman  yang tepat sehingga menghasilkan perkecambahan padi varietas lokal yang terbaik. Rancangan percobaan yang digunakan adalah Rancangan faktorial yang terdiri dari dua faktor. Faktor yang pertama yaitu kuat medan elektromagnetik dari 0 mT, 2 mT, 3 mT dan 4 mT, sedangkan faktor kedua yaitu lama perendaman terdiri dari 48, 64,dan 96 jam. Data yang diperoleh dianalisis dengan sidik ragam, kemudian dilanjutkan dengan uji duncan apabila perlakuan berpengaruh nyata. Hasil penelitian menunjukkan bahwa semakin kuat paparan elektromagnetik dengan tegangan tertentu mengakibatkan adanya penurunan terhadap persentase perkecambahan benih padi, sedangkan untuk perlakuan perendaman, semakin lama perendaman benih menghasilkan peningkatan persentase perkecambahan padi. Perkecambahan padi terbaik dihasilkan pada pemaparan medan elektromagnetik tegangan 2 mT dengan lama perendaman 96 jam. This study aims to find out the modeling of electromagnetic fields against local rice varieties and to determine the electromagnetic field and the proper immersion time to produce the best rice germination. The experimental experiment used is a factorial circuit consisting of two factors. The first factor is the strength of the electromagnetic field of 0 mT, 2 mT, 3 mT and 4 mT, while the second factor is the duration of immersion consisting of 48, 64, and 96 hours. The data obtained were analyzed by verbal examination, then continued with duncan test if treatment had real effect. The results showed that the stronger electromagnetic exposure with certain voltage resulted in a decrease in the percentage of seed germination of local varieties of rice while for the immersion treatment, the longer the seed immersion resulted in increased percentage of germination of local varieties of rice. The best germination was produced at exposure of 2 mT voltage electromagnetic field with 96 hours of immersion time for red rice varieties.  

scholarly journals Berlian, SOJ A3 and Jawa Local Rice Varieties Phylogenetically Distinct From Oryza sativa Indica and Oryza sativa Japonica

el–Hayah ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 112-125
Author(s):  
Yudrik Lathif ◽  
Riri Wiyanti Retnaningtyas ◽  
Dwi Listyorini ◽  
Suharti Suharti
Keyword(s):  
Oryza Sativa ◽  
Phylogenetic Tree ◽  
Dna Barcode ◽  
Rbcl Gene ◽  
Tree Reconstruction ◽  
Rice Varieties ◽  
Local Varieties ◽  
Precise Position ◽  
Total Dna ◽  
Taxonomical Position

The genetic resources identification of Indonesian local rice varieties is a crucial work should be done to conserve our native germplasm. This research aimed to know the taxonomical position of East Java local rice varieties including Jawa (JW), Berlian (BR), and SOJ A3 (SJ) using DNA barcode based on rbcL gene. Total DNA of each sample was isolated from leaves. A pair of forward 5'-ATG TCA CCA CAA ACA SJA AC-3' and reverse 5'-TCG GTA CCT GCA GTA GC-3' primers were used to amplify fragments of rbcL gene resulting in 751bp, 755bp, and 754bp fragments from BR, SJ, and JW varieties, respectively. Phylogenetic tree reconstruction revealed that our three local varieties were forming a cluster separated from the widely cultivated subspecies Oryza sativa Indica and Oryza sativa Japonica. However, further studies are necessary to reveal a more precise position of the local varieties in a phylogenetic tree on the species level.

scholarly journals Increasing Rice (Oryza sativa L.) Productivity and Farmer’s Income through the Implementation of Modified Double Rows Planting System

2021 ◽  
pp. 42-52
Author(s):  
Robet Asnawi ◽  
Ratna W. Arief ◽  
. Slameto ◽  
Reny D. Tambunan ◽  
. Martias ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
New Technology ◽  
Farming System ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Rice Varieties ◽  
Benefit Cost Ratio ◽  
Two Factors ◽  
Planting System

Rice (Oryza sativa L.) productivity in Indonesia is leveling off. The study aims to determine the effect of the Jejer Manten double rows modified planting system on the growth, productivity, and economic feasibility of the rice farming system. The study was conducted in Lampung Province, Indonesia from 2016 to 2018. The study was arranged using a split-plot design with 3 replications. The treatment consisted of two factors namely: planting system (S1 = Jajar Tegel, S2 = Jajar Legowo double rows 2:1, and S3 = Jejer Manten double rows modification) and rice varieties (V1 = Ciherang; V2 = Inpari 10).The results of the study showed that the Jejer Manten planting system produced higher growth and productivity than Jajar Tegel and Jajar Legowo planting system. During the three years of research, the application of the Jejer Manten planting system increased productivity by 6.04-32.27% compared to Jajar Tegel and 13.78-28.92% compared to the Jajar Legowo planting system. Economically, based on the analysis of marginal benefit-cost ratio (MBCR), the application of the Jejer Manten planting system was more feasible than the Jajar Tegel planting system (MBCR = 6.32) and Jajar Legowo planting system (MBCR = 8.18). Based on these results, it is recommended to apply the Jejer Manten planting system as a new technology to increase rice production and support of food self-sufficiency program of Indonesia.

scholarly journals Whole-genome sequencing of three local rice varieties (Oryza sativa L.) in Vietnam

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Ky Huynh ◽  
Giang Van Quoc ◽  
Tung Nguyen Chau Thanh ◽  
Hien Nguyen Loc ◽  
Vo Cong Thanh
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
New Technology ◽  
Quality Data ◽  
Whole Genome ◽  
Rice Varieties ◽  
Local Varieties ◽  
Wide Range ◽  
Indel Polymorphisms ◽  
Next Generation Sequencing Ngs

Recently, a new technology, Next-generation sequencing (NGS) has been launched and providing whole-genome sequences that helps identify molecular markers across the genome. DNA markers such as single nucleotides and insertion – deletion (InDel) polymorphisms were widely used for plant breeding particularly to distinguish important traits in rice. These PCR-based markers can be used for the precision detection of polymorphisms. Moreover, PCR-based approaches are simple and effective methods for dealing with the issue of fraudulent labeling and adulteration in the global rice industry. In this study, three local varieties of Oryza sativa L. in Vietnam were sequenced with up to ten times genome depth and at least four times coverage (~83%) using the Illumina HiSeq2000™ system, with an average of 6.5 GB clean data per sample, generated after filtering low-quality data. The data was approximately mapped up to 95% to the reference genome IRGSP 1.0. The results obtained from this study will contribute to a wide range of valuable information for further investigation into this germplasm.

scholarly journals DEVELOPMENT OF MOLECULAR MARKER FOR ASSESSMENT OF INTRASPECIFIC POLYMORPHISM OF RC GENE CONDITIONING RED PERICARP IN RICE ORYZA SATIVA L.

2011 ◽  
Vol 9 (3) ◽  
pp. 57-67
Author(s):  
Sergey V Tokmakov ◽  
Zhanna M Mukhina ◽  
Denis I Bogomaz ◽  
Tatyana V Matveeva
Keyword(s):  
Oryza Sativa ◽  
Early Diagnosis ◽  
Molecular Marker ◽  
Oryza Sativa L ◽  
Red Rice ◽  
Seed Colour ◽  
Intraspecific Polymorphism ◽  
Rice Varieties ◽  
Red Pericarp

Red rice is the worst field weed in all rice-cultivation areas. Early diagnosis of red rice in primary seed breeding program is an overriding task, which solution directly influences the quality of the rice seeds. Red and red-brown colors of pericarp are determined by two loci at least: Rc and Rd, expressing in conjunction with the Rc gene. In this study we have developed an intragenic codominant molecular marker for the Rc gene and tested it with contrasting as to the seed colour rice varieties examined feature. The efficacy of the marker has been shown for 1142 families of rice, each sample containing 120 plants. 

scholarly journals Performance of six new superior varieties of rice on tidal swamp-land in South Kalimantan Province

2021 ◽  
Vol 911 (1) ◽  
pp. 012030
Author(s):  
Agus Hasbianto ◽  
Rina Dirgahayu Ningsih ◽  
Muhammad Amin ◽  
Muhammad Yasin ◽  
Aidi Noor
Keyword(s):  
Block Design ◽  
Rice Production ◽  
Rice Grain ◽  
Rice Varieties ◽  
Irrigated Rice ◽  
Local Varieties ◽  
Tidal Swamp ◽  
Panicle Number ◽  
Randomized Complete Block Design ◽  
Two Factors

Abstract Rice is the staple food for millions of people of Indonesia which produced from many agroecology including tidal-swamp. The contribution of swampland to the national rice production is still lower than 2%. One of the indigenous knowledge of the tidal-swamp farmers is the massive use of local varieties which have low yield. Therefore, efforts to increase rice production in tidal-swampland of Barito Kuala Regency should consider the use of superior varieties. The purpose of this study was to find out performance of seven superior varieties in tidal-swamp land in two planting seasons. This research was conducted from March 2020 to March 2021 in Karang Buah Village of Belawang District of Barito Kuala Regency, South Kalimantan Province. The research was arranged in two factors of Randomized Complete Block Design namely varieties and seasons. The first factor consisted of seven varieties: Inpari-42 (V1), Inpari-43 (V2), Inpari IR Nutri Zinc (V3), Inpara-8 (V4), Inpara-9 (V5), Inpara-10 (V6), and IR-42 (V7). The second factor, season consisted of season-1 which started from March to July 2020 and season-2 for planting period from November 2020 to March 2021. The result showed that swamp rice varieties had higher value for plant height variables than those of irrigated rice varieties with Inpari-8 as the highest one. However, all irrigated rice varieties performed better which had higher value for panicle number, filled rice grain, and yield with IR-42 as the highest one. All varieties except IR-42 showed higher values of filled grain numbers when cultivated in season-1 supported by good weather during the study.

scholarly journals UJI ADAPTASI BEBERAPA VARIETAS PADI SAWAH (Oryza sativa L) DAN KAPUR DOLOMIT PADA TANAH GAMBUT

2017 ◽  
Vol 29 (2) ◽  
pp. 145-152
Author(s):  
Hercules Gultom ◽  
Mardaleni Mardaleni
Keyword(s):  
Oryza Sativa ◽  
Plant Height ◽  
Oryza Sativa L ◽  
Rice Varieties ◽  
Randomized Design ◽  
Two Factors ◽  
Adaptation Test ◽  
Best Parameter

Adaptation test of several rice varieties and dolomit lime on peatland was carried out in the greenhouse of Faculty of Agriculture Riau Islamic University Pekanbaru. The purpose of this research ws to know adaptation power several yielding rice varieties on peatland with using dolomit and to obtain yielding rice varieties which is able to adapt with peatland, and to find a correct dosage by using doomit lime for raise pH soil. The experiment was arranged with grouply randomized design with two factors. The first factor was yielding rice varieties, consisting of four factors: V1 (IR 64), V2 (IR-72), V3 (Kapuas), and V4 (Santani). The second factor was dolomit lime, consisting of four factors: d1 (2.56 t/ha) and PH 5.6, D2 (3.60 t/ha and pH 5.4, D3 (4.51 t/ha) and pH 5.2, and D4 (5.49 t/ha) and pH 5.0. The parameter observed were plant height, number of productive shoot, percetage of unhask full rice, weight of dry rice per hectare, and weight of 1000 seeds. The resuts showed interaction using several yielding rice varieties was not significant effect on the observed parameters. However, the use of yielding varities showed a significant effect with the best variety: V1 (3.9 t/ha), V2 (3.8 t/ha), V3 (3.1 t/ha), and V4 (3.1 t/ha). While, the use of dolomit lime was affected significantly for the whole parameters with the best parameter: D1 (3,6 t/ha), D2 (3,6 t/ha), D3 (3,4 t/ha), and D4 (3,3 t/ha).

scholarly journals Effect of Seed Priming on Seed Germination and Seedling Growth of Modern Rice (Oryza sativa L.) Varieties

2018 ◽  
Vol 16 (1) ◽  
pp. 34-43
Author(s):  
A A Mamun ◽  
U A Naher ◽  
M Y Ali
Keyword(s):  
Oryza Sativa ◽  
Seed Germination ◽  
Vitamin C ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Oryza Sativa L ◽  
Poor Performance ◽  
Seed Priming ◽  
Rice Varieties ◽  
Vigor Index

The experiment was carried out in the Seed Laboratory of Bangladesh Agricultural Development Corporation (BADC), Gazipur during June to July 2014 to investigate the effects of different priming methods on seed germination and the seedling growth of some rice (Oryza sativa L.)  varieties. Four rice varieties: 1) Nerica, 2) BRRI dhan51, 3) BRRI dhan41 and 4) BRRI dhan49; and six priming treatments: 1) On-farm Priming, 2) Hardening, 3) Hydro-priming, 4) Osmo-hardening, 5) Vitamin C Priming and 6) Control were used in the experiment. The experiment was laid out in a completely randomized design (CRD). The treatments were replicated three times. The germination percentage and seedling growth parameters differed significantly among the priming treatments. For germination, Nerica variety showed poor performance, whereas the other varieties were found superior. Among the priming treatments, Vitamin C priming and Osmo-hardening were found superior. In case of interaction, germination was increased with Vitamin C priming and Osmo-hardening in Nerica. For seedling growth parameters, particularly vigor index, shoot and root lengths, BRRI dhan41 and BRRI dhan51 were found superior. The priming treatment Vitamin C and Osmo-hardening performed better than others.  Seedling vigor index was increased with Vitamin C priming and Osmo-hardening in Nerica variety. Shoot length at 15th day was influenced by hydro-priming in Nerica. Root length at 10th day was significantly increased with hardening in BRRI dhan41. Vitamin C priming and Osmo-hardening could therefore, be used for improving germination and seedling growth of Nerica. The Agriculturists 2018; 16(1) 34-43

scholarly journals Pengaruh Pemberian Pupuk Kompos Jerami terhadap Pertumbuhan Dua Varietas Padi Gogo (Oryza sativa L.) pada Tanah Ultisol

2020 ◽  
Vol 4 (2) ◽  
pp. 61-70
Author(s):  
Faridah Faridah ◽  
Erida Nurahmi ◽  
Nurhayati Nurhayati
Keyword(s):  
Oryza Sativa ◽  
Plant Height ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Dry Weight ◽  
Rice Varieties ◽  
Split Plot ◽  
Two Factors ◽  
Number Of Leaves ◽  
Plot Design

Abstrak. Penelitian ini dilaksanakan diTaman Teknologi Pertanian (TTP) Jantho Kecamatan Kota Jantho, Kabupaten Aceh Besar, dan Laboratorium Fisiologi Tumbuhan Fakultas Pertanian Universitas Syiah Kuala, yang berlangsung sejakbulan Agustus hingga Desember 2016. Penelitian ini menggunakan rancangan petak terpisah (split plot design), dengan dua faktor yaitu dosis pupuk kompos jerami dan varietas. Dosis pupuk kompos jerami menjadi petak utama yang terdiri atas 3 taraf yaitu (kontrol, 10 dan 20 ton ha-1), varietas menjadi anak petak yang terdiri atas 2 taraf yaitu (Situ Patenggang dan Sanbei). Peubah yang diamati meliputi tinggi tanaman, jumlah daun, jumlah anakan, dan berat berangkasan kering. Perlakuan dosis pupuk kompos jerami berpengaruh sangat nyata terhadap tinggi tanaman pada umur 4 dan 8 MST. Perlakuan varietas berpengaruh sangat nyata terhadap jumlah daun pada umur 4 dan 8 MST. Terdapat interaksi antara kompos jerami dan varietas terhadap jumlah anakan, jumlah daun dan berat berangkasan kering. Dosis pupuk kompos jerami yang terbaik terhadap pertumbuhan padi gogo  pada tanah ultisol adalah 20 ton ha-1. Pertumbuhan padi gogo terbaik pada tanah ultisol dijumpai pada varietas sanbei. Kombinasi terbaik terhadap pertumbuhan padi gogo pada tanah ultisol adalah dosis pupuk kompos jerami 20 ton ha-1 dengan varietas sanbei.The Effect of Straw Compost Fertilizer on the Growth of Two Gogo Rice Varieties (Oryza sativa L.) in Ultisol SoilAbstract. This research was conducted in the Agricultural Technology Park (ATP) of Jantho, Kota Jantho Subdistrict, Aceh Besar Regency, and Laboratory of Plant Physiology at the Faculty of Agriculture, Syiah Kuala University, which lasted from August to December 2016. The study used a split plot design, with two factors are doses of straw compost fertilizer and varieties. The doses of straw compost became the main plot consisting of 3 levels, namely (control, 10 and 20 tons ha1), the varieties being subplots consisting of 2 levels namely (Situ Patenggang and Sanbei). The variables observed included plant height, number of leaves, number of tillers, and dry weight. The treatment of straw compost doses significantly affected plant height at age 4 and 8 WAP. The treatment of varieties had a very significant effect on the number of leaves at ages 4 and 8 WAP. There were interactions between straw compost and varieties on the number of tillers, number of leaves and weight of dry stover. The best dose of straw compost for padigogo growth in ultisol soil is 20 tons ha-1. The best growth of upland rice on ultisol soil was found in sanbei varieties. The best combination of the growth of upland rice on ultisol soil is the dose of straw compost fertilizer 20 tons ha-1 with varieties of sanbei.

scholarly journals Anthocyanin Content Characterization on Pigmented Local Rice as Genetic Resources of Functional Food

2018 ◽  
Vol 24 (2) ◽  
pp. 125
Author(s):  
Kristina Dwiatmini ◽  
Higa Afza
Keyword(s):  
Genetic Resources ◽  
Functional Food ◽  
High Performance ◽  
Anthocyanin Content ◽  
Red Rice ◽  
Black Rice ◽  
Rice Varieties ◽  
Local Varieties ◽  
White Rice ◽  
Pigmented Rice

<p>Local varieties of pigmented rice are highly valuable genetic resources as a functional food in the future. Pigmented rice contains anthocyanins which function as nutrient bioactive components, called antioxidants. The aim of this research was to characterize anthocyanin content on 27 accessions of pigmented local rice, 2 varieties of released red rice varieties (Aek Sibundong and Inpari<br />24), and 1 control varieties of white rice, Ciherang. The content of anthocyanin was analyzed by using High Performance Liquid Chromatography (HPLC) with cyanidin-3-glucoside as a standard. The results showed that local rice Aen Metan and Melik had the highest anthocyanin content were reached 0.7953 mg/g and 0.7806 mg/g. These content were higher than 2 released red rice varieties, Aek Sibundong and Inpari 24 which had anthocyanin content reached 0.6496 mg/g and 0.4423 mg/g, respectively. Aen Metan and Melik were local black rice varieties and frequently have used as a parent in the breeding program. The white rice as control, Ciherang was showed the lowest anthocyanin content. Four pigmented local rice, Baliman Putih, Sari Kuning, Karamanting, and Iden had higher anthocyanin content than the two released red rice breeding varieties.</p>

Sign in / Sign up

Export Citation Format

Share Document