bluuebunny/crossref_metadata_2025_split huggingface dataset:
Growth performance of weaner rabbits fed dried Moringa oleifera leaf meal
Authors: Zendrato D P , Ginting R , Warisman  , Siregar D J S , Putra A , Sembiring I , Hamdan  , Ginting J , Henuk Y L 
Published: June 2019

Abstract
An experiment was conducted to study growth performane of weaner rabbits fed dried Moringa oeifera leaf meal. Twenty weaner rabbits (New Zealand White breed) with an average live weight of 918.42 ± 6.84g were used to evaluate the growth performance, daily weight gain (DWG), feed convertion ratio (FCR), and income over feed cost (IOFC) of weaner rabbits fed diets containing graded levels of moringa (Moringa oleifera) leaf meal (MOLM) in diets. The study lasted for eight weeks.The rabbits were assigned into four treatment groups and five replicates consisting of four rabbits per group in a complete randomised design and fed four diets designated T0, T1, T2 and T3 with 0, 20, 40 and 60% MOLM, respectively. Result showed that the average of feed intake for each treatment T0; T1; T2 and T3 (g/head/day) were:104.96; 110.06; 109.34; 107.04, DWG (g/head/day):18.87; 22.35; 21.60; 21.5; FCR: 5.57; 4.95; 5.08; 5.06, and IOFC (Rp/head): 57,012.73; 73,197.77; 72,525.36; 74,435.32, respectively. The statistical analysis indicated that the utilization of MOLM in diets gaves not significantly different (P>0,05) on the productive performances of weaner rabbits. Utilization of MOLM can be used up to 60% on diets and increased income from diets of weaner rabbits.
Diversity of understorey at Singkil Swamp Wildlife Reserve
Authors: Onrizal O 
Published: June 2019

Abstract
Singkil Swamp Wildlife Reserve (SSWR) is the only conservation area in the coastal lowlands of Aceh as well as habitat of protected large mammals and migratory birds. Many publications related to Singkil swamp biodiversity have been published; however the understory communities were not studied. Understory communities are important part of peat swamp ecosystem. This study aimed to calculate the understory diversity and distribution using quadrat method. Nine sites were selected and 25 2m by 2m plots were established in each sites. All understorey species within plot were identified and measured their coverage. Overall, 134 species in 42 families were recorded which the community diversity in each site was categorized as moderate and high. Araceae was recorded as richest family (14 species), followed by Orchidaceae (10 species) and Annonaceae (8 species). Subsequently, there are 17 families (40.5%) categorized as very scare family which each family only contains 1 species. It means the vulnerability of the last family group is very high due to the ecosystem disturbance. Some invasive alien species were found at disturbed areas. Therefore, the pristine peatswamp ecosystem is needed to conserve as well as the disturbed area is needed to restore based on scientific approaches.
Profiles of temperature, salinity, dissolved oxygen, and pH in Tidal Lakes
Authors: Leidonald R , Muhtadi A , Lesmana I , Harahap Z A , Rahmadya A 
Published: June 2019

Abstract
Siombak Lake is a brackish or coastal lake in Medan, Indonesia. Water fluctuation in the lake was affected by sea tide, so it was more appropriately called tidal lake. Thus the influence of tides could affect the quality of water in the lake, especially temperature, salinity, dissolved oxygen, and pH. The purposed of this study was to describe the profile of temperature, salinity, dissolved oxygen, and pH in the waters of Siombak. Lake. This study was conducted in June to July 2018. The data measured and were analyzed in the waters spatially (horizontally) and vertically. The results showed no significant difference of temperature distribution in surface between high tide and low tide. However, it was more influenced by daily time differences. While salinity was quite different between high tide and low tide. In the dry season (April to June) salinity values were higher during high tide compared to low tide. Conversely, during the rainy season (June to August) the salinity values in low tide were higher than when they were in high tide. The vertically distribution of temperature, oxygen, and pH decreases with respect to increasing depth. But the salinity value increases with depth increased.
Effect of ratio of andaliman (Zanthoxylum acanthopodium) with garlic and aging time on the quality of sambal tuk tuk
Authors: Sonangda M , Sinaga H , Limbong L N 
Published: June 2019

Abstract
The purpose of this research was to find the effect of ratio of andaliman with garlic and aging time on the quality of sambal tuk tuk stored at room temperature. This research was using completely randomized design with two factors, i.e.: ratio of andaliman with garlic (A): (100%: 0%; 75%: 25%; 50%: 50%; 25%: 75%; 0%:100%) and aging time (L): (0, 4 and 8 day). Parameters analysed were moisture content, total number of microbe, vitamin C content, pH, total soluble solids, colour values (Chromatometer), hedonic organoleptic score of colour, flavour, taste and texture. The results showed that the ratio of andaliman with garlic has highly significant effect on moisture content, total number of microbe, colour score (Chromatometer), score hedonic of organoleptic colour, flavour, texture and texture score. The ratio of andaliman with garlic of (25%:75%) the best quality of sambal tuk tuk based from score of organoleptic and total number of microbe stored for up to 8 days at room temperature.
Organoleptic properties of functional powdered drink products based on palm sugar
Authors: Rianse I S , Rianse U , Wahyuni S , Gusmiarty W , Faradilla RH F , Zulfikar  , Baka W K , Tamrin  , Fatmala K , Sarbia  , Nofiana  , Astuti K , Erawati  , Ramadhan A 
Published: June 2019

Abstract
This study aimed to characterize the organoleptic properties of functional powdered drinks based on palm sugar. The drinks were prepared with palm sugar as the main matrix and spices in several concentrations as additional flavour. The spices were cinnamon, clove, lemongrass, red ginger and ginger. Type and concentration of the spices greatly affected the sensory properties and hedonic level of the drink products. In general, panellists preferred products with darker brown colour and mild spice flavour. Some spices, such as cinnamon and lemongrass increased the brown colour intensity. Among all tested samples, only lemongrass and red ginger flavored palm sugar drinks were liked by panelists for all studied parameters (colour, aroma and taste). Ginger flavored samples also got relatively high preference score for almost all sensory categories. However, the taste of ginger was found to suppress the unique sweet taste of the palm sugar. Therefore, special attention should be made to the amount of added ginger to preserve the distinctive flavour of palm sugar.
The influence of solid and liquid palate cleansers toward the neutralization effectiveness of chili’s spicy sensation
Authors: Fibrianto K , Nurdiani K , Puanda N T , Wulandari E S 
Published: June 2019

Abstract
Capsaicin is a compound in chili which is able to bind with TRPV1 sensory nerve receptor. This sensory nerve receptor perceives pain as well as spicy sensation. Consumption of spicy foods will generally leave a residue on tongue and possibly irritate the papillae at a certain concentration. To reduce this effect, palate cleanser is required to normalize the oral cavity. Those are include, chocolate, cucumber, agar, milk and water which are normally being used as palate cleanser. The comparative study of the five palate cleanser was performed to evaluate the most effective palate cleanser in eliminating spicy sensations. This research was performed using Discrete Time Intensity (DTI) method with time interval of 30 second for 2 minutes. The data analysis was performed by GLM (General Linear Model) ANOVA and it was verified by residual saliva test on HPLC. It suggests that among the palate cleanser tested, cold fullcream milk (1.5°C-3°C) is the most effective palate cleanser for capsaicin-driven spicy sensation.
Potential of natural antioxidants of black cumin seed (Nigella sativa) and sesame seed (Sesamum indicum) extract by microencapsulation methods
Authors: Rusmarilin H , Lubis Z , Lubis L M , Barutu Y A P 
Published: June 2019

Abstract
This study was conducted to determine the bioactive components in food ingredients that have as potential natural antioxidants source, it can be used as an alternative to reduce degenerative diabetes mellitus. The potential natural antioxidant of black cumin seed and sesame seed extract by encapsulation methods was carried out by fermentation. This research used a complete randomized design, consisted of two factors: the ratio of black cumin seed extract with sesame seed extract (E) consist of 4 levels: 100:0; 75:25; 50:50; 25:75 and 0:100 (%) and type of coating material (N): maltodextrin-soy protein, maltodextrin-gelatine and maltodextrincasein. The best antioxidant activity (IC50) was 81.45 µg/mL, which found in the ratio of black-sesame cumin extract (75%:25%) with maltodextrin-soy protein coating material.
The influence of coagulants and cooking period on the quality of dali ni horbo
Authors: Pratiwi M B , Sinaga H , Julianti E 
Published: June 2019

AbstractThe purpose of this research was to determine the effect of coagulants and cooking period on the quality ofdali ni horbo. This research was using group randomized design with two factors, such as: coagulants (G): (pineapple juice, lime juice, lemon juice, belimbing wuluh fruit) and cooking period (M): (40, 50 and 60 minutes). The results showed that the coagulants and cooking period gave a very significantly different effect (P<0.01) on pH, moisture and protein contents of thedali ni horbo, but had no significant different effect (P>0.05) on the ash content. Furthermore, the interaction of factors resulted in a significant different effect (P<0.05) on the ash and protein contents. The coagulants decreased the moisture and protein contents ofdali ni horboand increased the pH and ash contents of the products. Based on parameters protein, moisture, ash contents and pH, it was found that the best treatment wasdali ni horbocoagulated with lime juice for 40 min.
Phenotypic and genotypic correlation among taste attributes and weight of green bean in Arabica coffee (Coffea arabica L.)
Authors: Malau S 
Published: June 2019

Abstract
The coffee taste may primarily affect consumers in choosing coffee to drink. Information on phenotypic and genetic correlation of taste attributes of Arabica coffee is still lacking. The objective of this research was to determine the phenotypic and genotypic correlation among taste attributes and green bean weight of Arabica coffee. In this study, Nested design was used. The taste attributes and green bean weight of 28 genotypes of Arabica coffee growing in North Sumatra Province was analysed. In this research, it is hypothesized that taste attributes and green bean weight have significant phenotypic and genotypic correlation one another. The research result showed that total score performed significant genotypic correlation with fragrance, flavour, aftertaste, acidity, body and overall, respectively. Selection for aftertaste might be the first priority to get higher total score (rG = 0.953**). Sweetness had significant genetic correlation with green bean weight (rG = 0.420*). Total score of the taste attributes showed the highest phenotypic correlation with acidity (rP = 0.862**). Weight of green bean could not be used as selection parameter for better taste because no taste attribute did show phenotypic correlation with green bean weight. Breeding for taste quality through hybridization could be necessary in future research.
Effect of salinity on spore germination, hyphal length and root colonization of the Arbuscular Mycorrhizal Fungi
Authors: Delvian  , Rambey R 
Published: June 2019

Abstract
Various environmental factors influence the growth and development of Arbuscular Mycorrhizal Fungi (AMF), one of which is salinity. Salinity can affect several stages of AMF growth. Theresearch aims to study the influence of salinity towards germination, growth, and performance of AMF, namely Gi. margarita and G. etunicatum. The level of salinity given ranges from 0 - 10,000 ppm with an interval of 2,000 ppm. Spore germination experiments were carried out in petri dish culture while evaluation was carried out in open pot culture with sorghum as host. The results showed that increasing salinity decreased the initial day of germination, the percentage of germination and hyphal growth. The effect is greater on Gi. margaritathanG. etunicatum on all parameters measured. An increase of salinity up to 10,000 ppm decreased the percentage of Gi. margarita root colonization by 69.07% and G. etunicatumby 37.78%. Nevertheless, the effect of salinity observed in this study towards germination and growth of AMF wasmore categorized as delaying rather than inhibiting or stopping.
Resistance test of several sweet potato genotypes against sweetpotato weevil Cylas formicarius Fabricus (Coleoptera: Curculionidae) in the lowlands
Authors: Syahnas F , Bakti D , Lubis L , Rosmayati  , Rahmawati N 
Published: June 2019

Abstract
The sweetpotato weevil (SPW), Cylas formicarius Fabricius, is the main pest in sweet potatoes and spread throughout the world. One of the efforts that can be used to reduce SPW attacks is to use sweet potato genotypes that contain high beta-carotene. The objective of this research was to know the resistance level of some sweet potato genotypes to sweetpotato weevil in the lowlands. This research used a randomized block design with one factor, namely sweet potato consisting of 5 genotypes that came from different accessions (Saribu Dolok Simalungun, Kesemak Simalungu, Batang Beruh Dairi, Binjai accession and National Superior Varieties Beta-1). This research was carried out in Cengkeh Turi, Binjai Utara, Sumatera Utara from April to August 2018. The results showed that the lowest intensity and percentage of attack was on sweet potato accession of Saribu Dolok Simalungun, which was 7.94% and 27.08% respectively while the highest intensity and percentage of attack was on sweet potato accession of Batang Beruh Dairi, which was 18.60% and 48.7% respectively. It is recommended that Saribu Dolok accession is more resistance rather than others and suitable to grow on low land.
Analysis of changes in morphological characteristics of leaves and stems in some sweet potato cultivars (Ipomoea batatas L.) from Simalungun and Dairi highlands planting in the lowlands
Authors: Irwan M , Rosmayati  , Hanafiah D S , Rahmawati N , Bakti D 
Published: June 2019

Abstract
Sweet potatoes can grow in the lowlands and highlands. The ability of sweet potatoes to grow outside their provenance is determined by their ability to adapt to new environments that can be seen from changes in agronomic character. This research aimed to analyse the changes in the morphological character of leaves and stems in some sweet potato cultivars from the Simalungun and Dairi Highlands planted in the lowlands. The experiment was conducted from April to August 2018 in the experimental garden in Cengkeh Turi Village, Binjai. The experiment was arranged in a randomized block design with one factor, namely the sweet potato plant genotype consisting of 5 genotypes from different accessions (accession of Saribu Dolok Simalungun, accession of Kesemak Simalungun, accession of Batang Beruh Dairi, accession of Binjai and variety of Beta-1). The results showed that cultivars of sweet potato G5 (Seribu Dolok), G6 (Kampung Kesemak) and G10 (Batang Beruh) originating from the highlands of Simalungun and Dairi as well as Beta-1 have leaf and character if planted in the lowlands. The three cultivars from the highlands were able to grow well in the lowlands while in the accession of a thousand land did not have differences in morphology.
Evaluation of land suitability on arabica coffee plantation by parametric method in Lintongnihuta District
Authors: Marbun P , Nasution Z , Hanum H , Karim A 
Published: June 2019

Abstract
This study aims to establish the land suitability class and improvement efforts that need to be done in each of the Soil Map Unit (SMU) on arabica coffee fields in Lintongnihuta district. Results of overlaying the map of soil type, the map of altitude and slope map with a scale of 1: 50,000 produced 13 SMU. Evaluation of several soil characteristics (texture, coarse fragment, CaCO3 and salinity) must consider the appropriate soil depth, where the normal root depth of the Arabica coffee plant is 150 cm, so that it uses 6 (six) parts of the depth of the soil with a depth of 25 cm for each section. Correction indexes used in succession are: 2.00 - 1.5 - 1.00 - 0.75 - 0.5 - 0.25.The results showed that all SMU in Arabica coffee land in Lintongnihuta District has the actual land suitability class S3 (f) (marginally suitable, limiting factor: soil fertility). Improvement efforts that can be done are: giving lime, organic material, fertilization and reclamation. All SMU has the potential land suitability classS2 (c,s)(moderately suitable, limiting factor: climate and natural soil).
The use of polyethylene glycol as simulating media of drought stress on viability of seeds varieties of Cacao (Theobroma Cacao L.) on germination stadia
Authors: Yuningsih R , Siregar L A M , Damanik R I M 
Published: June 2019

Abstract
This study was aimed at determining cacao varieties that are tolerant to drought stress and assessing the effectiveness of the use of PEG 6000 as a media simulation to drought stress. Experiment was arranged in a Completely Randomized Design (CRD) non-factorial, replication four times. PEG concentration, consisted of 4 levels, namely control, 15%, 20%, and 25%. PEG concentration on 25% exerted significant effects on viability for twelve days. While PEG concentration on 20% and 15%.
National Center for Biotechnology Information (NCBI) database search for rubber plant Hevea brasiliensis
Authors: Basyuni M , Hayati R , Pratomo B , Lisnawita  
Published: June 2019

Abstract
The present study describes search National Centre for Biotechnology Information (NCBI) databases (GQuery) on rubber plant Hevea brasiliensis Mull. Arg. NCBI databases search (https://www.ncbi.nlm.nih.gov/) was employed to generate a number of valuable information. Results found in 26 databases for H. brasiliensis. All databases of the rubber plant consist of literature, genes, genes, protein genomes, and chemical properties of H. brasiliensis. It is noteworthy no information concerning genetics. The literature contained bookshelf, MeSH (Medical Subject Headings), National Library of Medicine Catalogue, PubMed, and PubMed Central. Health comprised only OMIM (Online Mendelian Inheritance in Man database), Gene consists of EST, Gene, GEO DataSets, and PopSet. No Genetics data available for H. brasiliensis. Proteins feature contained Identical Protein Groups, Protein Clusters, Sparcle, and Structure. Genomes included Assembly, BioCollections, BioProject, BioSample, Genome, GSS, Nucleotide, Probe, SRA, and Taxonomy. The chemicals property denoted BioSystems and PubChem BioAssay. The present work provides essential information relating to biotechnology.
Effect of liquid organic fertilizer on the rice varieties field production
Authors: Ginting J 
Published: June 2019

Abstract
Rice production for rice supply in Indonesia still needs to be increased in line with the growing population growth. One effort that can be done by planting high-yielding rice varieties and using liquid organic fertilizer. This study aims to obtain the rice variety which is the best in production among the varieties studied in this study and the appropriate concentration of liquid organic fertilizer is applied. The study was conducted in Sendang Rejo Village, North Sumatra Province, Indonesia. The study used a Randomized Block Design with two treatment factors, namely: Liquid Organic Treatment Factor consists of 4 levels of treatment: Mo=Without liquid organic fertilizer. M1 = 3 cc/l of water. M2 = 6 cc/l of water. M3 = 9 cc/l of water. Variety treatment factors consisted of 3 types of paddy rice varieties: V1 = Ciherang. V2 = Inpari 30. V3 = Inpari 32. The results showed that the highest grain production is found in the treatment of liquid organic fertilizer 6 cc/l water with a production of 27.48 g per plant (4.40 tons/ha). There is a tendency of the highest production found in the variety of Inpari 32 with a production of 26.38 g per plant (4.22 tons/ha).
Application of fertilizer type and dosage toward brown planthopper (Nilaparvata lugens Stall.) attack level on several paddy (Oryza sativa L.) varieties
Authors: Tarigan A B , Marheni  , Ginting J 
Published: June 2019

Abstract
Usage management of inorganic fertilizers into organic fertilizers can reduce the attack level of brown planthopper. The organic matter can increase tolerance of plants to pest attacks. The objective of this research was to determine the cow manure dosage against the attack level of brown planthopper on several paddy plants varieties. This research was conducted on paddy fields in Serdang Village, Beringin Sub-District, Deli Serdang District from March to July 2018. This study used a two-factor randomized block design (RBD) with three replications. The First Factor was the dosage of fertilizer which consisted of 4 treatments (inorganic fertilizer, 50 kg/plot of manure, 100 kg/plot of manure and 150 kg/plot of manure). The second Factor was the varieties which consisted of 2 varieties treatment (Ciherang and Inpari 10). Result showed that P2 fertilizer dosage (100 kg/plot) was able to reduce the percentage of brown planthopper attack. V2 variety (Inpari 10) was a treatment that can reduce the percentage of brown planthopper attack. The interaction between fertilizer dosage and variety of V2P2 (Inpari 10 + 100 kg/plot) was the best treatment in suppressing the percentage of brown planthopper attack.
The effect of sulfur and Rhizobium sp application to the growth and nodulation of Mucuna bracteata
Authors: Wahyuni M , Sembiring M , Wagino  , Sihite H G 
Published: June 2019

Abstract
Planting of legumes cover crop, Mucuna bracteata, aims to reduce erosion, increase organic matter, improve soil structure and increase nutrient N. Factors that influence N fixation are food sources, rainfall, sunlight, pH, presence of toxic and competitors. The pH value of the soil is related to the Sulfur element S (sulfur). The study was conducted with 4x4 factorial design with 3 replications. The first factor in the dosage of sulfur consists of S0 (0g), S1 (30g), S2 (60g), S3 (90g) per plant. The second factor is the dose of Rhizobium sp, I0 (0ml), I1 (0.3ml), I2 (0.6ml), I3 (0.9ml), every 1 ml contains 106 cells. Observations were length of tendrils, number of leaves, number of nodules and levels of N. The results of treatment S significantly affected the length of tendrils, number of leaves, number of root nodules, most in S3, 127.50 and soil pH. . Treatment I significantly affected the increase in the number of root nodules, in I3 it increased 86.93%. N levels of all treatments in the high category. The highest N level is 4.17% for S3I2 treatment (90g sulfur and 0.6ml Rhizobium sp).
Provision of micoriza arbuscula in some types of grass to the degree of infection and phosporus uptake
Authors: Kurniawati E , Diana N , Delvian  
Published: June 2019

Abstract
This study was conducted in Faculty of Agriculture North Sumatera University. This study used a factorial completely randomized design (FCRD) consisting of two factors. The first factor was type of grass and the second factor is the microfer level with 5 treatments and 3 replications. The results of the diversity analysis showed the use of MVA significantly (P <0.05) in the degree of root infection and phospor uptake. This study use five types of grass (S) with MVA levels (M). The ratio of the degree of root is found in the M3 treatment 47.53% and the ratio of phosporus uptake is found in the M3 treatment 110.10% and the ratio of phosporus uptake is found in the S1 treatment 91.85%. From this study, it can be concluded that the best treatment is found in M3 treatment.