bluuebunny/crossref_metadata_2025_split huggingface dataset:
Karakterisasi Morfologi Klon Kentang di Dataran Medium
Authors: Handayani Tri , Sofiari Eri , Kusmana NFN 
Published: February 2017

<p>Morphological Characterization of Potato Clones in the Medium Land Area. Potato, as a subtropical plant, requires low temperature for optimum growing, especially for tuber formation (18oC). In the tropical area, potato is commonly planted at highland area. Planting of potato at medium land area may cause change on its morphological characteristics. The aim of this trial was to determine the morphological characteristics of potato plant cultivated at medium land. The trial was conducted at Majalengka (600 m asl), on April until July 2009. Eleven clones were used as treatment that were arranged in Randomized Block Design with three replications. Observation was done on 12 morphological characters, based on DUS Testing Guide (TG) of Potato published by plant variety production office. Plant height was significantly different among clones, whereas main stem thickness and leaf size were not different among clones. Morphological characteristic of the potato plant cultivated in medium land area, i.e. leaf canopy structure, growth habit, stem anthocyanin color, leaf arrangement, secondary leaf existence, flower frequency and flower color varied among the genotypes. Meanwhile the intensity of green color of leaf was not significantly different among the tested genotypes.</p><p> </p><p><strong>Abstrak</strong></p><p>Kentang sebagai tanaman subtropis menghendaki suhu rendah untuk pertumbuhan, terutama saat pembentukan umbi yang memerlukan suhu optimum 18oC. Di daerah tropis, suhu tersebut ditemukan pada lokasi dengan ketinggian lebih dari 1.000 m dpl. Penanaman kentang di dataran medium memungkinkan terjadinya perubahan karakter morfologis. Tujuan penelitian ini adalah mengetahui karakteristik morfologi tanaman kentang yang dibudidayakan di dataran medium. Penelitian dilaksanakan di Kabupaten Majalengka (600 m dpl), dari bulan April sampai Juli 2009. Perlakuan adalah 11 klon kentang dengan dua varietas pembanding Granola dan MB 17, ditanam di lapang dalam rancangan acak kelompok, tiga ulangan. Hasil pengamatan menunjukkan bahwa tinggi tanaman berbeda nyata antarklon, sedangkan ketebalan batang utama dan ukuran daun tidak berbeda nyata. Berbagai karakteristik morfologi tanaman kentang di dataran medium yang meliputi struktur kanopi daun, kebiasaan tumbuh, pewarnaan antosianin batang, susunan daun, keberadaan daun sekunder, frekuensi bunga, dan warna mahkota bunga sangat beragam, bergantung pada genotipe. Intensitas warna hijau pada daun memperlihatkan keseragaman antar genotipe.</p>
Agronomics Characteristics and Its Correlation of New Plant Type Promising Rice Lines
Authors: Lestari Angelita P. , Abdullah Buang , Junaedi Ahmad , Aswidinnoor Hajrial 
Published: February 2017

<p>Karakteristik Agronomi dan Korelasinya pada Galurgalur Harapan Padi Tipe Baru. Dalam program pemuliaan tanaman padi diperlukan pengetahuan tentang karakter dan korelasinya dengan hasil gabah. Penelitian dilakukan untuk mempelajari karakter tanaman dan korelasinya dari 35 galur harapan PTB dengan Ciherang dan Sintanur sebagai varietas pembanding, ditanam di dua lokasi, Bogor dan Pusakanagara, pada MT 2009 (MK dan MH). Rancangan yang digunakan adalah acak kelompok dengan tiga ulangan. Bibit umur 21 hari ditanam satu bibit per lubang, jarak tanam 20 cm x 20 cm, pada petak berukuran 2 x 5 m2 per baris. Karakter tanaman bervariasi antargalur dan beberapa di antaranya berbeda nyata dengan varietas pembanding Ciherang dan Sintanur, kecuali untuk hasil gabah. B11742-RS*2-3-MR-34-1-2-1 merupakan galur dengan postur tanaman terendah, hasil gabah rendah, dan umur terpendek. Sebagian besar galur mempunyai karakter padi tipe baru (PTB). Hasil gabah berkorelasi positif dengan semua karakter, tetapi hanya berkorelasi nyata dan positif dengan tinggi tanaman, berkisar antara 91,4-120,7 cm.</p><p> </p><p><strong>Abstrak</strong></p><p>In a plant breeding program, knowledge of the character and interrelationships among yield and yield contributing characters are necessary. This study was carried out to identify the plant character and its correlation between yield-correlated traits of 35 NPT rice promising lines with Ciherang and Sintanur as check varieties, planted in two locations, Bogor and Pusakanagara and two seasons (2009 dry and wet season, DS-WS). Those lines were planted in Randomized Complete Block Design (RCBD) arrangement, in three replications. The 21-days-old seedling planted one seed per hole, spacing 20 cm x 20 cm, with a plot size of 2 x 5 m2 per line. Plant characters varied and were significantly different from Ciherang and Sintanur as check varieties except for grain yield. B11742- RS*2-3-MR-34-1-2-1 was the line that had the lowest plant height, grain yield, and the shortest growth duration. Most of the lines had character as new plant type variety. Grain yield positively correlated with all characters, but only significantly and positively correlated with plant height at range from 91.4- 120.7 cm.</p>
Kajian Heritabilitas dan Heterosis pada Persilangan antara Kacang Tunggak dengan Kacang Panjang
Authors: Ujianto Lestari , Idris NFN , Yakop Uyek M. 
Published: February 2017

<p>Study of Heritability and Heterosis on Hybridization between Cowpea and Longbean. Lestari Ujianto, Idris, and Uyek M. Yakop. The objectives of this research were to study the success rate of crossing and heritability on interspecific hybridization between several NTB local varieties of cowpea and several varieties of long bean. This research consisted of 3 stages i.e. (1) hybridization between cowpea and long bean; (2) evaluation of F1 generation; (3) backcrossing between F1 with both parents. The observed data is analyzed to estimate the degree of crossability, value of broad sense heritability, coefficient of genetic variance. The result of this research indicated that: (1) interspecific crossing between cowpea NTB local varieties and long bean have different degree of successful with range 31 to 57% as well as on back crossing degree of successful with range 35 to 61%; (2) the characteristic of pod length and plant height indicated the high broad sense heritability value, and (3) there was hybrid vigor for diameter of pods on all cross combinations with heterosis and heterobeltiosis values ranging 11.4-27.0% and10.1-18.9% respectively.</p><p> </p><p><strong>Abstrak</strong></p><p><strong></strong>Tujuan penelitian adalah untuk mengkaji tingkat keberhasilan persilangan, pendugaan gejala heterosis dan daya waris sifat pada persilangan antarspesies beberapa varietas kacang tunggak lokal NTB dengan beberapa varietas kacang panjang. Penelitian terdiri atas tiga tahap kegiatan, yaitu (1) persilangan kacang tunggak dan kacang panjang; (2) evaluasi hasil persilangan antara kacang tunggak dan kacang panjang; (3) silang balik antara hasil persilangan yang unggul dengan kedua tetuanya. Data hasil pengamatan dianalisis untuk menduga tingkat keberhasilan persilangan, pendugaan nilai heritabilitas arti luas, dan pendugaan koefisien keragaman genetik. Hasil dari penelitian menunjukkan bahwa (1) persilangan antarspesies kacang tunggak varietas lokal NTB dengan kacang panjang memiliki tingkat keberhasilan persilangan yang berbeda berkisar antara 31-57%. Demikian juga untuk silang balik tingkat keberhasilan persilangannya berkisar antara 35-61%; (2) sifat panjang polong dan tinggi tanaman menunjukkan nilai duga heritabilitas arti luas yang tinggi; (3) terdapat vigor hibrida untuk diameter polong pada semua pasangan persilangan dengan nilai heterosis berkisar antara 11,4-27,0% dan nilai heterobeltiosis 10,1-18,9%.</p>
Adaptasi dan Stabilitas Hasil Delapan Varietas Lokal Padi Sawah
Authors: Syarif Abd. Aziz , Zen Syahrul 
Published: February 2017

<p>Adaptation and Yield Stability of Eight Local Lowland Varieties. Abd. Azis Syarif and Syahrul Zen. The availability of improved rice variety adapted to high altitude areas and suitable for consumers preference in West Sumatra is very limited. Majority of rice farmers in high altitude area in West Sumatra grow many adapted local varieties. This activity aimed at estimating yield adaptability and stability of selected local varieties as a requirement for variety release. The yield and other agronomic traits of eight local and one improved varieties (Batang Sumani) were evaluated at six locations in Solok District, using a Randomized Complete Block Design with three replications at each location. Regression technique of varietal yields at each location on environmental index (mean yield of all varieties at correspondent location) was used to assess the adaptability and stability of particular varieties. The results showed that local varieties of Caredek Putih and Caredek Merah gave the highest mean yields, 5.39 and 5.18 t/ha (13.87 and 9.28% higher than that of improved check variety) respectively. These varieties were found to be stable, indicated by non significantly different of their regression coefficient from 1.0 and deviation from regression from 0.0.</p><p> </p><p><strong>Abstrak</strong></p><p>Ketersediaan varietas unggul padi yang adaptif pada lahan sawah dataran tinggi dan memiliki rasa nasi yang sesuai dengan preferensi konsumen di Sumatera Barat masih sangat terbatas. Sampai saat ini, kebanyakan petani masih membudidayakan varietas-varietas lokal yang sudah beradaptasi dan disukai konsumen. Penelitian ini bertujuan untuk mengetahui potensi dan stabilitas hasil beberapa varietas lokal padi sawah untuk pengusulan pelepasan sebagai varietas unggul. Delapan varietas lokal padi sawah hasil identifikasi dan seleksi dari beberapa lokasi di Kabupaten Solok (Sumatera Barat) dan satu varietas unggul sebagai pembanding (varietas Batang Sumani) diuji daya hasil dan sifat agronomis lainnya di enam lokasi di Kabupaten Solok. Pada setiap lokasi digunakan rancangan percobaan Acak Kelompok dengan tiga ulangan. Pendugaan adaptabilitas dan stabilitas hasil menggunakan teknik regresi dimana rataan hasil setiap varietas di setiap lokasi diregresikan dengan indeks lingkungan (rataan hasil semua varietas) lokasi yang bersangkutan. Hasil penelitian menunjukkan bahwa varietas local Caredek Putih dan Caredek Merah memberi rataan hasil tertinggi, yakni 5,93 dan 5,18 t/ha (13,8 dan 9,28% lebih tinggi dari varietas pembanding). Kedua varietas ini adaptabilitas umum atau beradaptasi baik pada semua lingkungan dan stabil, ditunjukkan oleh koefisien regresinya yang tidak berbeda nyata dari 1.0 dan simpangan dari regresi yang tidak bebeda nyata dari 0.</p>
Identifikasi Pemanfaatan Hasil Hutan oleh Masyarakat: Upaya Konservasi Sumber Daya Genetik dan Sosial Budaya
Authors: Sumanto Slamet E. , Takandjandji Mariana 
Published: February 2017

<p>Utilization of Forest Products by the Society at the Time Have Been Amended Due to Changes in Tastes and Consumption Levels of Society and Increase Social Dynamics of Society. Slamet E. Sumanto and Mariana Takandjandji. This study aims to determine patterns of utilization of forest products by communities and the pattern changes and the influence on forest management. Research conducted in Timor Tengah Selatan regency of East Nusa Tenggara. Methods of data collection using direct interview techniques, field documentation and library literature. The results showed that the general public has long recognized and use forest products for housing construction, energy and wood fences, craft materials and traditional musical instruments, a dye, and the use of other (honey bees, forest products followup likes as tamarin and walnut, as well as handicrafts). Local knowledge and utilization of local plant species should be a consideration in forest management policy in the future.</p><p> </p><p><strong>Abstrak</strong></p><p>Pemanfaatan hasil hutan oleh masyarakat pada saat ini telah mengalami perubahan karena perubahan selera dan tingkat konsumsi masyarakat serta peningkatan dinamika sosial masyarakat. Penelitian ini bertujuan untuk mengetahui pola pemanfaatan hasil hutan oleh masyarakat dan pola perubahannya serta pengaruhnya terhadap pengelolaan hutan. Penelitian dilakukan di Kabupaten Timor Tengah Selatan, Provinsi Nusa Tenggara Timur. Pengumpulan data menggunakan teknik wawancara langsung, dokumentasi lapang serta beberapa literatur. Hasil penelitian menunjukan bahwa secara umum masyarakat telah lama mengenal dan memanfaatkan hasil hutan untuk keperluan pembangunan rumah, kayu energi dan pagar, bahan kerajinan dan alat musik tradisional, bahan pewarna kain, serta pemanfaatan lainnya (lebah madu, hasil hutan ikutan asam dan kemiri, kerajinan tangan). Pengetahuan lokal dan pemanfaatan tumbuhan lokal seyogianya dapat menjadi pertimbangan kebijakan pengelolaan hutan di masa depan.</p>
Potensi berat ubi/tanaman sumberdaya genetik ubijalar dari berbagai daerah di Indonesia pada umur panen 8 sampai dengan 10 bulan yang ditanam di Cibadak, Cianjur, Jawa Barat
Authors: Minantyorini Minantyorini , Sutoro Sutoro , Sujarno Sujarno 
Published: February 2017

<p>Sumberdaya genetik ubijalar yang telah dikoleksi dari beberapa daerah di wilayah Indonesia dan dikonservasi secara <em>ex situ</em> di BB Biogen, perlu dievaluasi potensinya, selain dikarakterisasi untuk pengecekan ulang secara rutin identitas aksesinya. Salah satu potensinya adalah berat ubi/tanaman. Data berat ubi/tanaman dan data komponen berat ubi diukur dari 3 tanaman/aksesi pada umur panen 8, 9, dan 10 bulan setelah tanam (bst) pada tanaman konservasi, dan dianalisis dengan menggunakan analisis cluster dengan kemiripan 75%. Pada umur panen 8 bst, ditemukan 4 kluster dengan aksesi134, 5 aksesi diantaranya berpotensi mempunyai berat ubi tinggi. Pada 9 bst, ditemukan juga 4 kluster dengan aksesi 179 dan 48 aksesi berpotensi mempunyai berat ubi tinggi, sedangkan pada 10 bst, ditemukan 6 kluster dengan aksesi 50 dan 35 aksesi diantaranya berpotensi mempunyai berat ubi tinggi. Ada 37 aksesi yang belum berumbi pada 12 bst. Pengelompokan yang menggunakan analisis cluster dengan kemiripan 75% dimaksudkan untuk memudahkan kearah pengelolaannya, selain informasi potensinya. Sebagai ilustrasi, bila ingin melakukan evaluasi terhadap cekaman biotik atau abiotik atau sifat lainnya seperti berat ubi/tanaman, maka aksesi yang diuji tidak perlu dari seluruh koleksi yang ada, tetapi hanya memilih sampel dari tiap kelompok.<strong></strong></p>
Keragaman Karakter Morfo-Agronomis Sumber Daya Genetik Kacang Tunggak (Vigna unguiculata [L.] Walp.) Koleksi Bank Gen BB Biogen
Authors: Setyowati Mamik , Kurniawan Hakim 
Published: February 2017

Kacang-kacangan potensial seperti kacang tunggak (<em>Vigna unguiculata</em> [L.] Walp.) merupakan sumber daya genetik (SDG) tanaman yang penting. Tanaman kacang tunggak memiliki sifat relatif lebih tahan kering dibandingkan dengan kacang-kacangan yang lain. Karakterisasi SDG kacang tunggak telah dilakukan pada sebanyak 107 aksesi koleksi BB-Biogen. Karakterisasi dilakukan dengan tujuan untuk mengetahui aksesi-aksesi yang memiliki karakter baik yang dapat dijadikan sebagai sumber gen untuk merakit varietas unggul. Diketahui bahwa aksesi SDG kacang tunggak yang cepat dipanen yaitu aksesi KT-81, Kacang Tunggak 16, TVX-4667-010 dan TVX-2939-09D pada umur 59 hari. Jumlah gerombol polong tiap tanaman terbanyak dihasilkan oleh aksesi Kacang Dadap 125 dan Kacang Tunggak Hitam 24 sebanyak 8 klaster/tanaman. Ukuran butir terbesar dimiliki oleh aksesi Kacang Tunggak Hitam 13 (16,9 gram/100 butir) dan hasil biji tertinggi dihasilkan oleh aksesi Wajak 132 (104,9 gram/50 tanaman). Keragaman fenotipik koleksi SDG kacang tunggak relatif sempit, sehingga perlu dilakukan peningkatan keragaman SDG kacang tunggak baik melalui introduksi dan koleksi maupun persilangan
Destabilization And Treatment of Produced Water-Oil Emulsions Using Anionic Polyacrylamide
Authors: Ma He , Abdullah S. Sultan , Shawabkeh Reyad , Mustafa S. Nasser 
Published: February 2017

Abstract
Surfactant and polymer flooding technology can greatly enhance the oil recovery through the expansion of sweeping and displacing efficiency. The recovered oil from surfactant and polymer flooding emulsifies the residual chemical, which makes the separation of water from oil quite difficult, yet the impact of the enhanced oil recovery (EOR) chemicals on the produced water cycle is generally neglected in chemically-based EOR studies. This includes compatibility of EOR chemicals with the additives used to pre-treat the injected water or change reservoir wettability and result in producing oil/water emulsion after EOR breakthrough.
The largest waste produced in oil and gas industries is believed to be the produced water, as it contains different sort of organic and inorganic admixture. There are a number of treatment methods available for produced water. To separate water from oil in a much efficient manner and to reach the emission standard, a new class of water soluble polymer of polyacrylamides (PAMs) was used as destabilizing agents for water-oil emulsions, which have been stabilized by surfactant (Tallowamine Acetate).
The impact of the surface charge form, the density of polyacrylamides in turbidity -reduction, zeta potential, COD, FTIR, viscosity and volume of separated water were explored in this study. Different anionic polyacrylamide of different surface charge density were evaluated. Different anionic polyacrylamides were utilized, and at optimum dosage, anionic AN 934 PAM at its optimum concentration was proved as the best way to reduce the residual turbidity compared with other PAMs mentioned in this research. The effect of the different salinity (salt content: 200,000 ppm brine and 57,000 gulf seawater) of produced water will be evaluated using different PAM with different charge density as optimization. The results showed that the W/O emulsion stability related with its salinity, while the optimum concentration of demulsifier are same at both high and low salinity.
Enhanced Reservoir Characterization using High-Resolution Seismic Attributes
Authors: Al-Dossary Saleh 
Published: February 2017

Abstract
Seismic data typically includes useful structural and reservoir property information mixed with useless random noise. The accurate identification of geological structures (faults, fractures, and channels) and rock properties is required to develop accurate reservoir models, so enhancing the geological information while reducing random noise is desirable. Seismicattributes can also be used to enhance the delineation of subtle structural features which may not be readily visible in seismic amplitude images. Unfortunately, random noise hampersthedelineation and analysis of these smaller features and results in lower resolution seismic attributes.
To aid in producing high quality seismic attributes, I introduce a new adaptive quality enhancing filter. This filter adapts to local noise levels by incorporating noise estimation in the filter design. Smaller filters are created in areas of low noise to preserve fine lineaments such as fractures. Conversely, larger filter sizes are used in higher noise areas to remove noise more aggressively, thereby providing good noise reduction in high noise areas while simultaneously preserving detailed geologic structure in low noise areas. This process improves seismic reflection continuity and maximizes spatial resolution for subsequent processing and interpretation.
In this paper we show the result of calculating coherence and volumetric estimates of seismic reflector curvature after applying the new adaptive noise filter to three-dimensional (3-D) seismic datasets containing both structural and stratigraphic features. The results demonstrate the benefits of this approach in exploration and production settings for reservoir characterization and delineation.
Deciphering Well Performance of Hydraulically Fractured Tight Gas Wells Through Work-Flow Based Study
Authors: Waheed Arshad , Irvana Sonny , Habbar Ali , Noer Abdoerrias M. 
Published: February 2017

Abstract
A common horizontal well completion design, in recent times, in tight gas reservoirs includes the ability to place multiple hydraulic fractures along the length of the wellbore. This practice provides a better drainage pattern and the required flow capacities for the gas to flow making tight gas reservoirs economically viable producers. This is the customary completion practice for clastic rock development, which has shown good results. However, in many cases especially when stepping out in regions beyond the established boundaries, completion design by itself is not sufficient to ensure desired production.
The standard protocol to get the best chance of placing the horizontal section in good quality reservoir is to first perform petrophysical evaluation of the preferred pay interval, drill a pilot hole through the potential reservoir section and then place the lateral section in the zone of interest. The pilot hole provides a control point and helps reduce uncertainties in drilling laterally through the target pay zone.This typical completion procedure however does not guarantee identical production even in offset wells. In a conceptual case where two offset wells(A & B) with similar pilot hole petrophysical attributes drilled horizontally in the same maximum horizontal stress direction but in diagonally opposite azimuths produce at widely differing rates. Uncertainties in far-field geology, areal limits, pore pressure distribution, rock property distribution, etc.are well known challenges that can contribute to making well delivery predictions difficult.
To help in such situations and better understand the differences in well behavior a detailed workflow based study that includes reservoir characterization, well placement, stimulation design and production history matching is required. The objective of such a study would be to address questions regarding reservoir quality and identifiable "sweet spots," the absence of which could result in poor well performance.
The workflow study discussed here is a review of well accepted practices with the objective of highlighting challenges and providing insights into the best and most effective ways to develop complex and highly heterogeneous plays. The workflow loop (Figure 1) is an iterative study process where well performance puts the final seal of approval on the pre-job modeling and executionplanin the well delivery process. In cases where the wells fall below expectations the iterative loop would look for additional information to refine the earlier assumptions. This study considers examples where palynology helped improve geological understanding and played a critical role. The workflow sequence is mapped in this paper.