bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on weak fault signal detection technology based on lv system
Authors: Wang Weihao , Liu Shuyong , Chai Kai , Chen Long
Published: June 2020

The detection of weak fault signals is realized by applying non-resonant parametric excitation to Lu chaotic system. Periodic signals far larger than the characteristic frequency of the system are taken as input, the sharp change of the system attractor is observed, and the existence of weak signals is detected. The conditions that the parameters of the detection system should meet are deduced by using the averaging method and Lyapunov method. Numerical research shows that the detection system can quickly reach a stable state. When the amplitude of the detected weak signals changes slightly, the attractor state changes abruptly, and the system is sensitive to the input. Through the "butterfly effect" of the system, feature signals that are difficult to extract by traditional methods can be detected. And the system has strong anti-interference performance.
Research on Distribution Network Feeder Automation Technology
Authors: Ying Shi Shang , Yu Huang Shi
Published: June 2020

With the continuous improvement of socio-economic level, the current level of science and technology is also constantly developing. At the same time, China’s power industry is also developing at a relatively fast pace. The rapid development of the power industry has made vital contributions to the development of our national economy and the improvement of people’s living standards. In the development of the power industry, the automation technology of distribution network feeders is an important part of the development of power system automation. Therefore, the research and analysis of distribution network feeder automation technology must be carried out to improve the application level of distribution network feeder automation technology, so as to promote the modern development of China’s power industry.
Development of TCU Diagnostic System in Application Software Based on AUTOSAR
Authors: Luo Feng , Fang Xiaoying
Published: June 2020

Based on the diagnostic architecture of AUTOSAR, this paper presents the architecture of AUTOSAR diagnostic system and implementation of application fault diagnostic function. The interaction between the application software components and the BSW modules is emphasized. The hardware-in-the-loop test platform verifies that the development of application diagnostic system fulfills the requirements of design.
Gesture recognition smart home
Authors: Han Zhao , Cui Zhao
Published: June 2020

Different from the traditional smart home control method, this article uses the PAJ7620U2 chip gesture recognition to add to the smart home system.PAJ7620U2 gesture recognition can recognize 9 different gestures. Based on this performance, a simulated smart home system based on gesture recognition is designed. It contains home intelligent electronic photo frames, audio and video entertainment modules, intelligent security monitoring, ZigBee wireless communication environment detection, and light control. The experimental results show that the system is simple to operate and powerful, and is integrated into the traditional smart home control method without gaps.
Research on the application of artificial intelligence technology in the field of Justice
Authors: Mingtsung Chen , Shuling Li
Published: June 2020

With the progress of science and technology, the influence of artificial intelligence has gone deep into the judicial field. At present, the use of artificial intelligence in the court mainly includes information data-based, multi-body litigation service system, online dispute resolution platform, prediction and supervision of the results of entity judgment and other forms. At present, the application of artificial intelligence in the judicial field mainly includes the lack of authenticity and integrity of data, the limitation of its own characteristics by artificial intelligence, and the weak acceptance of judges. China’s courts at all levels are promoting the construction of "intelligent courts", which is an important part of the national network power strategy, as well as the embodiment of E-government in the judicial field. Through artificial intelligence technology, the judicial procedures such as service, signature, evidence, trial, debate, record and judgment in the process of litigation are managed and controlled in a unified way. However, there are many problems to be overcome in the application of artificial intelligence technology in the judicial field. Therefore, it is the foundation of long-term and steady development to find out the problems in time and propose solutions.
Summary of Application Research of Deep Learning in Operational Inspection of Transmission and Distribution Equipment
Authors: Chen Yufeng , Pei Shaotong , Liu Yunpeng , Liu Yijin , Lin Ying
Published: June 2020

With the continuous expansion of artificial intelligence in power system, the reliability, security and operation ability of power system have been greatly improved. With the massive collection of data for transmission and transformation operation and maintenance, in-depth learning, as a typical representative of data-driven in the system of artificial intelligence methods, is increasingly appearing in the application scenarios of intelligent state assessment of transmission and transformation equipment. Its excellent robustness can eliminate many kinds of interference in complex environment background, accurately identify and evaluate the target points under test, and greatly reduce the detection of transportation and inspection personnel. The workload of data analysis, processing, evaluation and other links can improve work efficiency and accuracy. This paper attempts to summarize the development process of in-depth learning, relevant landmark achievements and typical applications in the operation and inspection of power transmission and transformation equipment. This paper attempts to summarize the research progress of target recognition, target segmentation, image classification algorithms in depth learning in different spectral cameras of visible light, ultraviolet corona imaging and infrared thermal imaging.
Path Choice of Computer Network Development of Academic Journals in Internet New Media Environment
Authors: Hu Jianfei , Feng Liya , Cao Xin , Du Chuanli
Published: June 2020

Computer networking of academic journals refers to the traditional paper academic journals, which publish electronic texts at the same time as paper academic journals, so that relevant researchers such as experts and scholars can quickly and conveniently share journal results and information through network means process. In the internet new media environment, the computer network development of academic journals faces many problems and challenges. It is necessary to actively adapt to the development trend of internet new media, and better promote the computer networked development of academic journals through the construction of websites, academic platforms, and the use of WeChat platforms.
RETRACTED: Integrity verification of ADS-B navigation data source
Authors: Zhao Weiwei , Liu Duhui
Published: June 2020

The importance of data source integrity to ADS-B monitoring performance is analyzed in this paper, and the corresponding monitoring algorithm is given. At present, ADS-B monitoring data mainly comes from GNSS, and GPS, as the main component of GNSS at this stage, its public data is relatively easy to obtain. Therefore, GPS is selected as ADS-B data source, the integrity of the navigation data source is analyzed and the data of an airport is verified by simulation in this paper.
The combat application of queuing theory model in formation ship to air missile air defense operations
Authors: Zhong Zhitong , Zhang Lin
Published: June 2020

This paper is trying to analyze the dynamic process of air defense operations by using queuing theory synthetically, targeting at the firepower optimization and effectiveness evaluation in air defense operations of surface vessel formation. It also establishes the service model of intercepting air targets by single type and multi type ship to air missiles, and finally comes up with the optimization model of air defense firepower. Vaule for formation configuration, optimization of air defense firepower and effectiveness evaluation.
Evaluation model of enterprise operation based on BP neural network optimization algorithm
Authors: Zhang Yan , Hu Ziwei , Ji Li , Sun Nanlin , Lin Yuluo
Published: June 2020

The parameter selection of the traditional BP neural network (BPNN) has randomness, which makes the network prone to local extreme values during the calculation process. In order to solve this problem, this paper introduces the bat algorithm(BA) to optimize the parameter selection process of the BPNN and apply the algorithm to evaluate the enterprises’ operating condition, a corresponding evaluation model of the enterprises’ operating condition is established, and the evaluation model is applied to the prediction of the enterprises’ future operating condition and compared with the prediction effect of the traditional BPNN model. The prediction accuracy of the BPNN optimization algorithm is higher than the prediction accuracy of the traditional BPNN. The established enterprise operation evaluation model can effectively predict the future operation of the enterprise.
Representation Mode for Automobile-Oriented Customer Knowledge about After-sale Service
Authors: Li Yu
Published: June 2020

From the view of automobile after-sale service industry, this paper analyzes the connotation and characteristics of customer knowledge of this field, discusses on the method for acquiring customer knowledge of automobile after-sale service, and presents the ontology-based customer knowledge representation mode, thus ensuring the re-usability and consensus of automobile after-sales service knowledge.
Sorghum improvement program by using mutation breeding in Indonesia
Authors: Human Soeranto , Sihono  , Indriatama Wijaya Murti
Published: June 2020

Global climate change effects in agricultural fields often increase plant stress. For mitigating the negative effects of climate change, climate smart agricultural policies should be developed, for example, through the improvement of crop adaptability, productivity and quality in environments impacted by climate change. Attempts to increase crop genetic variability must be sought to aid in mitigating adverse consequences of climate change. For that purpose, mutation breeding plays an important role since it can increase genetic variation of important crops. By selecting desired mutant genotypes, the plant breeder can advance his or her germplasm by progressing lines with good adaptability, high productivity and quality under adverse conditions. For Indonesia, significant adverse impacts of climate change have appeared in some agricultural regions, such as prolonged drought problems in the east. To face the worsening conditions brought about by climate change and variability, a crop was sought that would require less agricultural input, being drought tolerant, having good adaptability and with high economic value. The choice fell on sorghum (Sorghum bicolor). In certain areas sorghum is recognized as a source of food, feed and fuel. Mutation breeding of sorghum has been conducted at the Center for Isotopes and Radiation Application (CIRA), the National Nuclear Energy Agency of Indonesia (BATAN). Sorghum mutation breeding is relevant to the National programme on food and energy diversification to support food and energy security in the country. The breeding objectives are to improve sorghum genotypes for improved yield and quality, and which tolerant to adverse conditions brought about by climate change, especially prolonged drought. Three sorghum mutant varieties have now been obtained and develop further by stakeholders. Sorghum cultivation in Indonesia has given significant impacts on mitigating the effects of climate change and supporting food and energy diversification program for maintaining food and energy security in the country. It has also promoted economic growth in the rural areas impacted by climate change.
Performance of soybean Grobogan-derived lines under citrus trees shade
Authors: Sundari Titik , Nugrahaeni Novita , Baliadi Yuliantoro
Published: June 2020

Developing soybeans through utilizing land between plantation crops, industrial forest plantations, and horticulture crops (including citrus plants) in agroforestry, agri-horticulture, agro-pastoral, and agro-silvopastoral systems need to be supported by the availability of adaptive varieties to the respective environment. For the reason, research aimed to evaluate the response of Grobogan-derived promising lines planted under the shade of citrus trees were carried out in the first dry season 2018. Citrus trees used in the study was 1.5 to 2.0 years old, located in Sembulung Village, Cluring District (L1) and Kradenan Village, Purwoarjo District (L2) Banyuwangi Regency. Ten promising lines derived from Grobogan variety along with Grobogan as the check variety were used in the study. In each location, the genotypes were arranged in a randomized complete block design with four replications. Each genotype was planted in a 12 m2 plot size, 40 cm x 15 cm planting space, 2 plants per hill. Results showed various genotypes responses to the environments as indicated by significant G x E interactions observed on yield and yield componens. Average yield in L2 was 3.25 t ha−1 and higher than that in L1 (2.86 t ha−1). GROB/IAC-453-7 line was consistently produced high yield in the two locations, i.e., 3.40 and 3.58 t ha−1 in L1 and L2, respectively; while GROB/PANDER-428-1 had a significantly larger seed size as indicated by it 100-seeds-weight 24.94 g (L1) and 26.51 g (L2), compared to that of Grobogan, i.e., 20.35 g (L1) and 24.61 g (L2).
Genotypic diversity, heritability and agronomic performance high-oil maize populations
Authors: Iriany R. Neni , Azrai Muhammad , Makkulawu A. Takdir
Published: June 2020

High-oil corn is has greater energy than normal corn. High-oil maize is a high negative genetic correlation between kernel oil content and grain yield. To obtain high oil content and yields maize varieties, breeding procedure design are needed to improve that kind of maize with wide genetic diversity. This study aimed to determine the genotypic variability, heritability, and performance of agronomic traits high-oil maize populations. 129 maize oil populations and three maize population as check varieties were tested in Maros Experimental station (South Sulawesi), and Jambegede Experimental station (East Java). The experimental design was used Randomized Complete Block design with two replications. Each population was grown in single row of 4 m length plot, spaced 70 cm between rows and 20 cm within row. The result showed that the location effect, genotype x environment interaction effect was significant for all traits. The Genotypic variance was considered narrow for all traits, expected maize length, number of rows per ear, and 1000-kernel weight. Broad-sense heritability was low for all observed traits, excepted for 1000-kernel weight. The 20 best populations based on the highest grain yield in both locations were selected from the basic population, MHOC0-9 had highest grain yield and MHOC0-112 lowest grain yield.
Identification of agronomic characters effecting cob weight of the families BTP1-X purple sweet corn (Zea mays L. Saccharata Sturt) using path analysis
Authors: Arsyad Fatimah , Basunanda Panjisakti
Published: June 2020

Food security and climate change in Indonesia pose their challenges for Indonesia. Germplasm exploitation is one of the solutions to solve these problems. Purple sweet corn is germplasm that has not been widely developed in Indonesia. Plant adaptation is important to comprehend so that plans can be developed. The study was conducted in two seasons, on the first season (February), this study was conducted in Cangkringan and on the second season (September) was in Pleret. The study was carried out using open-pollinated purple sweet corn seeds with 20 cobs selected based on the color of the seeds and the surface of the wrinkled seeds. Path analysis was performed to each variable to see the direct and indirect effects on the results. The results showed that the ability of the five growth variables influenced cob weight by 77.8%. Based on path analysis, it is known that the variable of cob length and cob diameter directly influences the cob weight. On the other side, the plant height, cob height, and the number of cob per plant have an indirect effect on the cob weight. The influence of the cob diameter variable on the cob weight gives the highest percentage compared to other variables, which is equal to 58.7%.
Genetic control for agronomic characters of bread wheat
Authors: Putri Nurwanita Ekasari , Wahyu E.K Yudiwanti , Sutjahjo Surjono H. , Trikoesoemaningtyas  , Nur Amin
Published: June 2020

Indonesian wheat needs continue to increase from year to year. Some regions of Indonesia have the potential for wheat development. This study aimed to obtain gene action of wheat agronomic characters in the context of developing tropical wheat. The study was conducted at the Experimental Garden of the Indonesian Ornamental Plant Research Institute (1100 m asl), Cipanas, Cianjur Regency, West Java from July 2017 to January 2018. This study used F2 Ja/Se population and two-parent genotypes (Jarissa and Selayar) were planted in a randomized complete block design with three replications. Observations were made on plant height, days to flowering, days to harvesting, number of productive tillers, panicle length, number of spikelet, number of main panicle seeds, main panicle seed weight, number of seeds per plant and seeds weight per plant. Estimation of number and action genes used skewness and kurtosis approaches. The results showed that broad sense heritability was high except unfilled floret ratio. There were additive, dominant, epistasis gene actions controlling all observed characters. These characters were controlled by many genes.
Biomass, sinensetin content, and α-glucosidase inhibition activity of orthosiphon aristatus were influenced by fertilization and harvest
Authors: Delyani Rista , Kurniawati Ani , Melati Maya , Nur Faridah Didah
Published: June 2020

Orthosiphon aristatus has been proved as a diabetic remedy due to its anti-hyperglycemic activity. One of its phenolic compounds, sinensetin, has a capability to inhibit α-glucosidase enzyme activity. As cultivation techniques play roles in the medicinal properties of plants, this study was aimed to determine the best fertilization and harvest method to obtain the high yield of dry leaves, sinensetin content and α-glucosidase inhibition activity. The experiment was conducted at Leuwikopo Experimental Farm IPB University, from October 2014 until April 2015 and used a split-split plot design with three replications. The treatments were the technique of organic fertilizer application (whole and split) as the main plot; harvest interval (3, 5 and 7 weeks) as subplot; and cutting height (10, 20 and 30 cm above ground level) as sub-sub plot. The results showed that the whole application of 10 ton ha−1 organic fertilizer produced the higher weight of O. aristatus dry leaves than split application. The crop produced a high weight of dry leaves with the 3- and 5-week harvest interval but produced high sinensetin content with the 7-week harvest interval. O. aristatus harvested by cutting at 30 cm above ground level produced the highest weight of dry leaves, sinensetin content and α-glucosidase activity inhibition.
Agronomic performance and yield of hybrid rice genotypes in preliminary yield trial
Authors: Kartina Nita , Rumanti Indrastuti Apri , Satoto
Published: June 2020

Research on hybrid rice in Indonesia began in 1983 with the aim of exploring the prospects and constraints of this technology. Until 2019 the Indonesian government through Indonesia Agricultural Agencies Research and Development has released 21 hybrid rice varieties. 42 hybrid rice genotypes and one check variety namely Hipa 18 were tested during the season of 2014 in Sukamandi Experimental Station. Randomized complete block design (RCBD) with three replications was used in each season. The results showed that variation due to genotype were significant for all traits except panicle length. Genotype by season (GXS) interactions cause differences in productivity. Twenty one hybrid rice genotypes were selected on productivity and selection index based on contributed traits of yield i.e tiller number, number of filled grain per panicle, 1000-grain weight, and productivity according to their relative weight. Those selected hybrids were HRDC 1440, HRDC 1415, HRDC 1404, HRDC 1407, HRDC 1431, HRDC 1421, HRDC 1434, HRDC 1438, HRDC 1423, HRDC 1414, HRDC 1426, HRDC 1429, HRDC 1443, HRDC 1441, HRDC 1406, HRDC 1408, HRDC 1446, HRDC 1422, HRDC 1445, HRDC 1417 and HRDC 1419. The productivity range of those hybrids were 6.1 – 10.2 ton ha-1. The selected hybrid rice genotypes can be evaluated further in advance yield trials.
Characterization of the multiple crossing tropical wheat “magic population” using SSR marker associated with physiological characters
Authors: Nur A , Syahruddin K , Abid M
Published: June 2020

Heat stress is a challenge in the development of wheat in tropical environments. Characterization of heat tolerant wheat lines based on physiological characters is still very rarely carried out in tropics, therefore early detection using heat stress linked markers related to physiological characters is very necessary in order to produce adaptive wheat varieties in tropics. The study aims to characterize wheat lines from the “magic population” crossing based on SSR markers related to physiological characters and identified by field observations. The research used 23 genotypes for SSR marker characterization and continued to field experiment using 10 selected genotypes with Guri-5 Agritan and Guri-6 Agritan varieties as check. The experiment was arranged in randomized block design with 3 replications. The results showed polymorphism on Xbarc84 and Xgwm285 markers at the genotypes number 203, 145 and 184. Xbarc84 markers could show a relation to flowering time on genotype 203 with longer flowering time and harvest time. Xgwm285 marker show relation to HTI at genotypes no.145 with no band was formed, and the genotypes show weakness on growing in the field and did not show any relation on genotypes no.184. Correlation analysis between characters showed that SRF, SL and NSp characters could be used as secondary characters for heat tolerance wheat selection.
The response of soybean (Glycine max (L.) Meer.) varieties from the tropical region to five watering regimes under a controlled environment
Authors: Apriyana Y. , Rakhmidewi E , Fichtler E , Whitbread A.
Published: June 2020

In some rice dominated tropical regions, such as in Indonesia, soybeans are an increasingly important dry season crop which are often exposed to periods of drought stress. The morphological and physiological responses, which could lead to some tolerance to water stress, may vary between varieties.. An experiment was conducted to assess the response of four varieties of soybean (glycine max (l.) Meer.) to five watering regimes, with the objective of determining the response of common soybean varieies across a wide range of water supply. Plant response to water supply was measured using gas exchange measurement with the rate of photo synthesis decreasing progressively from well watered to dry conditions across the four varieties. A correlation of stomatal conductance and transpiration rate has a close relationship with photosynthetic rate, where stomatal conductance of Burangrang variety has higher value than other varieties. Varieties Burangrang and Argomulyo stomatal conductances are higher value than those of Anjasmoro and Grobogan varieties. Under deficit water condition, the Argomulyo varieties have a higher value of transpiration efficiency and significantly different than the other three varieties. The transpiration efficiency significantly declined for treatments watered once every two or three weeks. The transpiration efficiency values of Argomulyo and Burangrang varieties were significantly higher than another varieties.
Yield of green super rice (GSR) lines under legowo and squared planting system
Authors: Susanto Untung , Barokah Umi , Ali Jauhar
Published: June 2020

Green Super Rice (GSR) is rice genotypes designed to have high yield which is stable under low input Conditions. Legowo was reported to give higher yield compared to The square planting system. This research aimed to study The yield of 10 GSR lines along with four checks. i.e. Situ Bagendit, Ciherang, Inpari 8, and Inpari 13 under legowo 2: 1 (20 cm x 10 cm x 40 cm) and square (20 cm x 20 cm) planting system. The experiment was conducted in ICRR experimental station in Sukamandi during DS 2012 following split-plot design of two replications with The spacing system as the main plot and genotype as a subplot. Transplanting was conducted at 21 days after sowing into 3 m x 7 m plots of 1 - 3 seedlings/hill. The results showed that the interaction between genotypes and spacing systems was identified only for plant height. There were differences among genotypes on plant height, tiller number, unfilled grain/panicle, 1000 grain weight and yield. The spacing systems affected The tiller number and yield. Huanghuazhan (8.81 t/ha) had highest yield, higher than The best check Ciherang (7.81 t/ha). FFZ1, IR 83140-B-11-B, IR 83142-B-19-B, WTR 1 dan Zhongzu 14 considered to be adapted for legowo planting system.
Performance of high yielding varieties of rice in two planting season in the irrigated lowlands of South Kalimantan
Authors: Noor Aidi , Ningsih Rina Dirgahayu , Yasin Muhammad
Published: June 2020

Lowlands in South Kalimantan are only about 54,455 ha (9.9%) of the total rice field area of 549,988 ha, most of them are irrigated paddy field that has been planted twice. The average productivity of rice in South Kalimantan is still low, which is around 4.46 t/ha milled dry grain. Rice productivity can be increased by the use of new high yielding varieties. In paddy fields, the use of new high yielding varieties with 2 seasons plantations is expected to increase rice production in the 2017 year in South Kalimantan which produces 2.25 million tons of rice. To find out the adaptation and yield of high-yielding rice, a study has just been carried out in rice fields in South Kalimantan. The activity was carried out in the village of Harapan Masa, Tapin Selatan sub-district, South Kalimantan district during the two planting seasons: Rainy season 2015/2016 and dry season 2016. Rice planted in rainy season 2015/2016 are varieties of Inpari-9, Inpari-20, inpari-21, and inpari-31, while in the dry season 2016 are varieties of Inpari-9, Inpari-30, inpari-31 and inpari-33. The results of the study showed that the average yield in the rainy season was higher (7.05 t/ha) compared to the results in the dry season 6.47 t/ha). In the rainy season, the highest yield was obtained in the Inpari-31 variety (7.95 t/ha), while in the dry season the highest grain yield was obtained by the Inpari-30 variety (6.99 t/ha). Inpari-9 and Inpari-31 varieties which were planted in the rainy season yielded higher yields of 7.30 t/ha and 7.95 t/ha respectively compared to those planted in the dry season of 6.29 t/ha and 6.19 t / ha.
Opportunities for improving rice production in sub-obtimal lands South Kalimantan
Authors: Yasin Muhammad , Noor Aidi , Ningsih Rina Dirgahayu
Published: June 2020

The wetland agroecosystem in South Kalimantan is very diverse and mostly is sub-optimal land such as rainfed area of 172,074 ha, tidal swamp 188,908 ha, swamp area 135,504 ha, while irrigated paddy fields are only 55,116 ha. Paddy fields that have been planted with rice and can be harvested in 2017 covering an area of 506,126 ha with average productivity of 4.46 t / ha resulting in a total grain of 2,258,261 tons. The productivity of lowland rice in South Kalimantan is still below the average national rice productivity which reaches 5.18 t/ha. The constraints on the production of wetland rice in South Kalimantan vary depending on the type of land such as fluctuations in water (flooding, droughts), acid soils, the presence of toxicity of elements, not yet optimal water management in the swamps land, drought, nutrient deficiency in rainfed land. The area of upland rice plantations in the dryland of South Kalimantan is 63,170 ha, generally local varieties with average productivity of 3.07 t/ha. The development obstacles of upland rice in dry land include soil acidity, low organic matter, nutrient deficiency, competition in land use with other food crops and plantation crops. Rice production in South Kalimantan still has the opportunity to increase in the planting area and productivity. With the gap exist between rice productivity and the potential yield of new superior varieties, the use of other cultivation technologies application still provide opportunities to increase rice productivity in South Kalimantan. The addition of lowland rice planting area can be done by utilizing un-cultivated paddy fields (74,817 ha), the increase in planting index (PI) which is still low (PI 200 is only 9.14%). The addition of upland rice fields can be done on dry land fields with an area of 345,669 ha, or intercropping on plantation land (rubber, oil palm) that has not yet produced (183,539 ha).
Growth and yield of various soybean variety (Glycine max L. merril) with mycorrhizal application
Authors: Subaedah St. , Said NettyS. , Ralle Andi
Published: June 2020

Soybean demand from year to year is increasing in line with an increase in population and increasing people’s understanding of nutritious food, while soybean production is still very low. Therefore, various efforts continue to be made to increase soybean production, for example by selecting high-yielding varieties and improving soil fertility. This research was conducted with the aim of increasing soybean crop production by selecting appropriate varieties and improving soil fertility by application mycorrhizal biofertilizers. This research was conducted in the form of experiments in the district of Takalar, South Sulawesi, which took place from April to July 2019. The experiment was designed with the Split Plot Design. As the main plot is the treatment of varieties consisting of 3 types, namely: Anjasmoro varieties, Argomulyo varieties and Gema. As a subplot is the provision of mycorrhizae consisting of two levels, namely without the application of mycorrhizae and mycorrhizal applications. From these two factors, 6 treatment combinations were obtained and were repeated three times, so that 18 experimental units were obtained. The results showed that there was an effect of varieties treatment and mycorrhizal application on plant growth and soybean crop production. The use of Gema varieties and their interactions with the application of mycorrhizae produce the highest soybean plants. The parameters of production components and soybean production indicate that mycorrhizal application produces the highest number of productive branches, while the use of Anjasmoro and Argomulyo varieties produces the highest number of pods, pod weight and dry seed production per ha.
Effect of boron on flowering, yield components and grain yield of two prolific maize (Zea mays L.) hybrids
Authors: Alimuddin Suraedah , Musa Yunus , Azrai Muhammad , Asrul Laode
Published: June 2020

Maize is one of the strategic commodities in economic development in Indonesia. The need for maize in Indonesia continues to increase. Adequacy of nutrients affects the physiological process, where Boron (B) is one of the essential nutrients for optimal plant growth, development, yield, and quality. Nutrition B is important in the development of reproductive organs, components of corn and grain yield. This study aims to examine the effect of B on growth and flowering and its effect on yield components and grain yields of prolific maize hybrid. The study was conducted using Separate Plot Design, as the main plot was Bisi 2 variety and Nasa 29 while subplot was level B: 0 kg B ha-1, 0.25 kg B ha-1, and 0.50 kg B ha-1, by foliar application. The results showed that There is no significant difference between Bisi 2 Variety and NASA 29 in flowering parameters, yield components and yield of seeds except for the number of tassel branches and 1000 grains weight. application B up to 0.50 kg B ha−1 showed the highest results and significantly increased the number of tassel branches 5.10%, tassel length 8.62%, and silk dry weight of 29.54%, cob length 6.89%, grain weight per plant 15.69%, 1000 grains weight 8.36% and grain yield (moisture content 15%) 15.80% of 0 kg B ha−1. Application B 0.50 kg B ha−1 can be recommended in the Bisi 2 and Nasa 29 especially in low soils B.
Growth and results response of two soybean varieties toward fertilizing package at acid dry land in Aceh Province
Authors: Ferayanti Fenty , Idawanni  , Ismail M. , Asis  , Pakpahan Lamhot Edy , Andriani Rini , Bakar Basri A. , Fitria Eka , Rahmi Cut Hilda , Syarif Abdul Syukur
Published: June 2020

Acidic dry land is a potential suboptimal land as a source of agricultural production with proper management and utilization. The aim of this research is to determine the growth response and soybean yields of Kipas Merah and Demas varieties to several fertilizer packages. This research was conducted in July to October 2018 in Pidie Jaya Regency of Aceh Province. The study design used a randomized block design (RBD) with 3 replications and in each treatment set 15 plants as samples. The first factor is the variety (V), that is V1 = Kipas Merah; V2 = Demas. The second factor is fertilization package (P) consisting of 2 (two) levels: P1 (specific location) (2 tons/ha organic fertilizer, ameliorant 500 kg/ha and NPK 150 kg/ha); P2 (Recommendation) (urea 75 kg/ha, SP-36 100 kg/ha, KCl 100 kg/ha, ameliorant 500 kg/ha). The results showed the Demas variety with the recommended package gave the highest production of 1.97 tons/ha.
Evaluation of inorganic fertilization dose of maize hybrid in rainfed lowland Nganjuk East Java
Authors: Handayati Wahyu , Sihombing Donald
Published: June 2020

To obtain a recommedation for rational and efficient inorganic fertilizing, a study was conducted in Gejagan village, Loceret, Nganjuk Regency East Java Province from June to November 2016. A randomized block design was used with 3 replications. The type and dose fertilizer were used as atreatment i.e. T1. 850 kg urea + 300 kg NPK Posnka ha−1 (general farmers practise); T2. 650 kg urea + 150 kg ZA + 300 kg ha−1 NPK Ponska (a few farmers practise); T3. 300 kg urea + 300 kg NPK Ponska; T4. 350 kg urea + 325 kg (based on Upland Soil Test Kit + Leaf color chart); T5. 250 kg urea + 325 kg NPK Ponska T6. 450 kg urea + 250 kg NPK Ponska; and T7. 550 kg urea + 250 kg NPK Poska. HJ 21 variety was used as an indicator plant. The treatment significantly affected plant height, stalk diameter and leaf length, cob diameter, kernel weight, net kernel weight and yield. The highest yield was obtained in the T1 and T2. Based on the revenue due to the use of inorganic fertilizers, T4 was more profitable than T1 and recommended as a basis for location-specific fertilizer application.
Adaptation of new superior rice varieties at the altitude of 1600 masl in Jayawijaya Papua
Authors: Kasim Arifuddin , Laksono Pandu , Rumbarar Merlin K. , Thamrin M.
Published: June 2020

Adaptation of new high yielding highland rice varieties in Jayawijaya Regency, Papua Province. The research was carried out from June to September 2017 in Jayawijaya, Papua. The aims were to determine the appearance and productivity results of new high yielding rice varieties at an altitude of 1600 m above sea level. The study used a Randomized Block Design and each treatment was repeated 4 times. There were 4 (four) new superior varieties tested and one local variety as a comparison. Inpari 26, Inpari 27, Inpari 28 and Sarinah have been used for the treatment while the comparison variety was existing varieties (local Toraja). Component of growth and a component of production were collected as the parameter. The results showed that the superior variety of Inpari 28 provided the highest adaptability and yield which obtained 4.94 t / ha (MPD) and the age of the pan was also faster than other varieties. It showed the deepest age was obtained by local varieties 190 days after spread.
Evaluation of prolific hybrids maize performance on different population densities and nitrogen level
Authors: Efendi R , Baharuddin  , Herawati  , Andayani N N , Kalqutny S H , Azrai M
Published: June 2020

Prolificacy in maize is an adaptability character, with influence on production capacity and production stability. Prolificacy is the maize natural property to develop more ears on the same plant. Prolificacy maize can produce more than one ear per plant so it can increase the production per unit area of land. In addition, prolific maize is able to utilize the growth factors more efficiently and has higher yield stability compared to non-prolific maize. Prolific hybrid maize is also reported to be more tolerant to low humidity during the pollination and kernel filling phases. This study aims to determine the prolific percentage and yield of maize hybrid tested at different levels of population density and nitrogen fertilization. The study was conducted in September-December 2017 in Gowa using two candidates varieties of hybrid maize and NASA 29 and Bisi 2 variety as comparisons. The experiments were arranged in a split-plot design with three replications. The main plot is the spacing, ie. double spacing (50+100 cm) x 25 cm (Population of 53,333 plants/ha) and (50+110 cm) x 20 cm (Population of 62,500 plants/ha) and (50 + 100 cm) x 20 cm (Population of 66,666 plants/ha). The subplots were the level of N fertilizer (150 and 225) kg N/ha), The sub-sub plot was the prolific hybrid genotypes (candidate for the multilocation test) and two check varieties of Bisi 2 and NASA 29. The result indicated that Bisi-2 variety has a high prolific percentage of 51.30%. 2. The Nasa-29 variety has the highest total kernel yield production of 11.5 t/ha. 3. Significant increase in yield per unit area can be achieved by assembling varieties that have a high percentage of prolific and average kernel weight per prolific plant ≥50% compared to the single-eared plants.
The distribution and impact of fall army worm (Spodoptera frugiperda) on maize production in North Sumatera
Authors: Girsang Setia S. , Nurzannah Sri Endah , Girsang Moral A. , Effendi Roy
Published: June 2020

Maize is the second most important cereal crop in the world after wheat, contributing substantially to the total cereal grain production in the world economy as a trade, food, feed, and industrial grain crop. The presence of S. frugiperda or Fall Armyworm (FAW) and climate change has affected the corn productivity in North Sumatra. The objective is to determine the distribution and impact of FAW on maize production in North Sumatra. The method used was a survey, observation, and interview farmers and extensions, also secondary data of the FAW attacked from the North Sumatra Food Crops and Horticulture Protection unit (January to August 2019). Sampling was done by simple random sampling with 30 respondents. Analysis data in the form of agronomic advantages and FAW distribution were mapped by overlaying the district administration map with the corn area that was attacked using ArcView GIS. The results showed that the heaviest attack in Karo District was 1,729.9 ha started at 25 days after planting until flowering. The effect of FAW is an increase in production costs by 4.2%, reduction production by 26.6% wherein labour is the highest cost production. Rainfall and wind speed factors have a positive and negative influence on the development of FAW in North Sumatra, early anticipation at the beginning of the plant growth period can reduce the impact on corn production and cost.
Utilization of antagonistic bacteria Bacillus subtilis to control Fusarium verticilloides on corn
Authors: Suriani  , Djaenuddin Nurasia , Muis Amran
Published: June 2020

Among a number of important diseases in maize plants, the disease caused by fungi Fusarium verticilloides needs attention because this fungus can cause decay on corn stalks and cobs causing economic losses. The aim of this study was to test several levels of the dosage formulations of B. subtilis BNt4 and TM3 to suppress the incidence of F. verticilloides in corn plants. F. verticilloides isolates were propagated by toothpick contamination method. The experiment was conducted in Bajeng Experimental Farm in 2018. The treatment was arranged in Factorial Randomized Block Design (RBD) with 3 replications. The first factor was the formulation of B. subtilis consisting of 2 strains namely B. subtilis BNt4 (F1) formulation and B. subtilis TM3 (F2) formulation. The second factor was the dosage application for antagonistic bacterial formulations. The results of the study showed that the application of the B. subtilis formulation, in general, is able to suppress the incidence of F. verticilliodes on corn plants both on the stem and on the seeds. The application of B. subtilis TM3 formulation at a dose of 2.5 kg/ha gave the highest inhibition to the severity of Fusarium stem rot at 53.49%. The effect is implicated to the quality of seeds by showing the lowest percentage of ear rot which is 3.81%. This disease control technique I able to reduce the yield loss and the decreased quality of the maize grain due to F. verticilloides infection.
Histological changes in the midgut of Spodoptera litura larvae exposured by the extract of Mirabilis jalapa leaves
Authors: Suryani A. Irma , Hariani Nova , Majid Ahmad Fudhail , Amalia Desy Nita
Published: June 2020

Mirabilis jalapa in Indonesia is better known as Bunga Pukul Empat (the four o‘clock flower) which has the potential a natural insecticide to overcome pests in agricultural crops, such as Spodoptera litura insects. If S. litura larva is infected by toxic compounds, it will cause larval mortality which can be observed in the midgut (middle intestine). This research used a Completely Randomized Design of 4 treatments with 1 control and 4 times of iteration in each treatment using 0% (control), 0.2%, 0.4%, 0.8% and 1.6% (b/v) of M. jalapa leave extract concentration. The observation result of S. litura midgut histological structure showed that the higher concentration of M. jalapa leaf extract, the more damage occurred in its midgut tissue. Microphotography at a concentration of 0.2%; 0.4%; and 0.8% showed that some cells have undergone swelling, disintegration, and lysis. The worst damage was found at the concentration of 1.6%, in which the basal of epithelial cells undergone a wide range of disintegration, peritrophic membrane disappeared, all epithelial cell lysis, muscular layer became thin, the structure of basement membrane was indistinct, the form of goblet cells became irregular, and the longitudinal muscle disappeared. Based on the results, extract of M. jalapa has potential as a botanical biopesticide.
Prospect of specialty maize as functional food to support food diversification in Indonesia
Authors: Suarni  , Aqil Muhammad
Published: June 2020

Functional maize contains various advantages over normal maize in term of usage not only since milk stage but also harvest stage. Another advantage of functional maize is the diversity of colors such as read, yellow, purple, and black with different physicochemical character. Physicochemical character of maize is the main base to choose variety that appropriate with the preferred product, by count the functional food element. Maize color is the clue of high compound content that has health benefits. For example, anthocyanin contained in purple and black maize, carotene compound in yellow and red maize, Fe mineral in red maize. Those compounds are antioxidant, mineral which needed for human health. Maize-based food products contain dietary fiber with antioxidant content hat very needed by health specially to anticipate degenerative diseases. Another challenges of specialty maize are raw materials availability and food diversification support from government. The abundant maize germplasm in Indonesia is adequate to develop, with touches of variety development and cultivation technology that can increase production will transform the special maize become functional food material that has high value. In Indonesia, MOA has released various functional maize such as QPM maize, Provit A maize, waxy maize and purple maize. This paper discussed the development of functional maize research in Indonesia and its contribution for supporting food diversity in Indonesia.
Rice productivity on tidal swampland in the agricultural assisitance area program in Barito Kuala Regency South Kalimantan
Authors: Ningsih Rina Dirgahayu , Yasin Muhammad. , Noor Aidi
Published: June 2020

Food needs that continue to increase rapidly along with population growth and the conversion of optimal paddy fields to non-agricultural land make sub-optimal land an alternative rice-producing land. One of the sub-optimal land being developed for use as a source of rice production is tidal land. The purpose of this research is to improve the productivity and feasibility of rice farming by supervising double row technology in tidal land in Barito Kuala Regency. The performance of rice the new superior varieties of Inpara 2, inpara 8, inpari 32, inpari 40 and inpari 42 in the tidal swampland in the 2018 dry season are quite good. How to plant with super double row planting increases productivity by 43% compared to ordinary planting. The highest productivity with super double row is Inpara 2 variety (5.83 t / ha), then inpari 42 (5.19 t/ha), Inpara 8 (4.78 t/ha), Inpari 40 (4.23 t/ha), Inpara 3 (3.85 t / ha) and Inpari 32 (2.54 t/ha). The planting method with super double row gives an RC ratio of 2.07 and a R/C ratio of 1.07. Whereas the R/C ratio planting of the farmer way is 1.60. And the MBCR (marginal benefit-cost ratio) super double row 2.41. This shows that rice farming using super double row provides benefits and worth applying.
Farmer perception of utilization of rice ransplanterin Aceh Besar
Authors: Mardhiah Ainal , Khumaira  , Azis Abdul , Basri A. , Bakar  , Panikkai S.
Published: June 2020

During the last two years, agricultural mechanization technology has been very widely introduced to farmers in Aceh to increase agricultural production, especially rice. One of the mechanizations that were introduced to farmers as an alternative solution to overcome the limited planting labour is the Rice Transplanter. The purpose of this study was to determine the level of farmers’ perceptions of the use of Rice Transplanter technology in Indrapuri District, Aceh Besar District. This research uses the case study method in the research location. The sampling technique was intentionally “Proposive Sampling” with the consideration that the population in this study had used a rice transplanter machine, with a population of 20 farmers scattered in two villages, Aneuk Glee and Lam Ilei. Data obtained in the form of primary data through interviews with respondents and secondary data as supporting data. Furthermore, the data were analyzed using descriptive analysis using a Likert scale. The linkert scale used is divided into 3 levels: 1 (low), 2 (medium), and 3 (high). The results showed that the total perception score of farmers who used a rice transplanter machine was 809 and was at the perception index of 82.2% which was included in the high category. This means that with the presence of a rice transplanter machine, farmers can save on the use of production costs at every harvest season, in addition to the level of appropriateness of the use of machinery on this paddy field also meets the criteria so that it is easy to traverse and plant rice seeds. Farmers’ perception of the use of Rice Transplanter machines in IndrapuriSubdistrict is high because in terms of profits it is better than the manual method (using sickle), so it is evident that the production costs incurred are lower than in conventional systems.