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Wyszukujesz frazę "agent control" wg kryterium: Temat


Tytuł:
Concept of separation method between aircraft in the transition period
Autorzy:
Żuchowska, Daria
Stelmach, Anna
Powiązania:
https://bibliotekanauki.pl/articles/38955842.pdf
Data publikacji:
2022
Wydawca:
Politechnika Warszawska, Wydział Transportu
Tematy:
Airborne Separation Assurance System
distributed air traffic control
new concepts of air traffic control
multi-agent systems
ruch lotniczy
sterowanie ruchem lotniczym
kontrola ruchu lotniczego
system wieloagentowy
Opis:
The current concept of air traffic control based on human work was created many years ago and is now approaching the limit of its performance. Therefore, new concepts for air traffic control are being sought. One of the ideas is to delegate the responsibility for ensuring separation between aircraft to aircraft crews. The issue of self-separation is quite a difficult task. Analysis of the literature concludes that the transition from one phase to another will occur in stages. This paper focuses on the transition period. The concept of a method of ensuring separation when changing traffic organization was proposed. A vital element of the separation method in the transition period is to define the negotiation and communication process between aircraft, which was presented in this paper.
Źródło:
WUT Journal of Transportation Engineering; 2022, 135; 5-16
1230-9265
Pojawia się w:
WUT Journal of Transportation Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evacuation by leader-follower model with bounded confidence and predictive mechanisms
Autorzy:
Almeida, Ricardo
Girejko, Ewa
Machado, Luis
Malinowska, Agnieszka B.
Martins, Natália
Powiązania:
https://bibliotekanauki.pl/articles/1845516.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-agent systems
emergency
model predictive control
bounded confidence
Opis:
This paper studies an evacuation problem described by a leader-follower model with bounded confidence under predictive mechanisms. We design a control strategy in such a way that agents are guided by a leader, which follows the evacuation path. The proposed evacuation algorithm is based on Model Predictive Control (MPC) that uses the current and the past information of the system to predict future agents’ behaviors. It can be observed that, with MPC method, the leader-following consensus is obtained faster in comparison to the conventional optimal control technique. The effectiveness of the developed MPC evacuation algorithm with respect to different parameters and different time domains is illustrated by numerical examples.
Źródło:
Archives of Control Sciences; 2021, 31, 3; 629-644
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evacuation by leader-follower model with bounded confidence and predictive mechanisms
Autorzy:
Almeida, Ricardo
Girejko, Ewa
Machado, Luis
Malinowska, Agnieszka B.
Martins, Natália
Powiązania:
https://bibliotekanauki.pl/articles/1845527.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-agent systems
emergency
model predictive control
bounded confidence
Opis:
This paper studies an evacuation problem described by a leader-follower model with bounded confidence under predictive mechanisms. We design a control strategy in such a way that agents are guided by a leader, which follows the evacuation path. The proposed evacuation algorithm is based on Model Predictive Control (MPC) that uses the current and the past information of the system to predict future agents’ behaviors. It can be observed that, with MPC method, the leader-following consensus is obtained faster in comparison to the conventional optimal control technique. The effectiveness of the developed MPC evacuation algorithm with respect to different parameters and different time domains is illustrated by numerical examples.
Źródło:
Archives of Control Sciences; 2021, 31, 3; 629-644
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
System sterowania dwurękiego robota usługowego
Control System of Two Handed Service Robot
Autorzy:
Seredyński, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/2068659.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
system sterowania
robot dwuręki
robotyka usługowa
specyfikacja
agent
control system
two handed robot
service robotics
specification
Opis:
Praca prezentuje przykład systemu sterowania robota usługowego. Opisano zastosowane narzędzia i otwarte oprogramowanie. Przedstawiono system sterowania poczynając od struktury sprzętu przez specyfikację, aż do implementacji. Opis na poziomie ogólnym pozwala spojrzeć całościowo na problem tworzenia takich systemów, a jednocześnie podkreślono szczegółowe kwestie, które są istotne. Poruszono także kwestie związane z symulacją. Opisany system sterowania robota WUT Velma znalazł zastosowanie w licznych badaniach naukowych.
This work presents an example control system of a service robot. All used concepts, tools and open source software are described. The control system is presented starting from configuration of hardware, specification, up to its implementation. Generality of the image allows the reader to look at the problem globally, while some important, detailed aspects are highlighted. Simulation-related problems are also described. The presented system of WUT Velma robot has been used in many research works.
Źródło:
Pomiary Automatyka Robotyka; 2021, 25, 4; 37--44
1427-9126
Pojawia się w:
Pomiary Automatyka Robotyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation control of underwater vehicles using Multi Agent System
Autorzy:
Das, Bikramaditya
Subudhi, Bidyadhar
Pati, Bibhuti Bhusan
Powiązania:
https://bibliotekanauki.pl/articles/229747.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
AUV
Multi Agent System
formation control
switching network topology
mild connectivity
Opis:
This paper proposes the development of a formation control algorithm of multiple acoustic underwater vehicles by employing the behaviour of autonomous mobile agents under a proposed pursuit. A robust pursuit is developed using the distributed consensus coordinated algorithm ensuring the transfer of information among the AUVs. The development of robust pursuit based on characteristics of multi-agent system is for solving the incomplete information capabilities in each agent such as asynchronous computation, decentralized data and no system global control. In unreliable and narrow banded underwater acoustic medium, the formation of AUVs based distributed coordinated consensus tracking can be accomplished under the constant or varying virtual leader’s velocity. Further, the study to achieve tracking based on virtual leader AUV’s velocity is extended to fixed and switching network topologies. Again for mild connectivity, an adjacency matrix is defined in such a way that an adaptive connectivity is ensured between the AUVs. The constant virtual leader vehicle velocity method based on consensus tracking is more robust to reduce inaccuracy because no accurate position and velocity measurements are required. Results were obtained using MATLAB and acquired outcomes are analysed for efficient formation control in presence of the underwater communication constraints.
Źródło:
Archives of Control Sciences; 2020, 30, 2; 365-384
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiagent model of rail-road intersection with connected vehicles
Autorzy:
Janota, Aleš
Šimák, Vojtech
Hrbček, Jozef
Powiązania:
https://bibliotekanauki.pl/articles/2014191.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Technologiczno-Humanistyczny im. Kazimierza Pułaskiego w Radomiu
Tematy:
control
model
multi-agent
NetLogo
traffic
sterowanie
multiagent
ruch drogowy
Opis:
The multiagent approach to modelling, traditionally dedicated for distributed systems, can be applied on any platform where there are more processes or control threads. The world of surface transport is a typical example of such a situation where high numbers of dynamic entities (agents) interacting with each other represent a complex problem to solve, analyse and visualise. The main focus of this paper is on functional description of the traffic control problem at the rail-road intersection. Unlike conventional approaches, this model assumes usage of modern (infrastructure-to-vehicle, vehicle-to-vehicle) communication technologies as an essential base of cooperative intelligent transportation systems. The authors use the development toolkit NetLogo, explaining step-by-step the key programming details, to get a comprehensive overview of the operation of the entire system through simple definitions of a number of simple cooperating agents. The introduced model is implementation free and shows newly offered functionalities on the principal level, while a minimum theory of collective intelligence hidden in the background is needed.
Źródło:
Journal of Automation, Electronics and Electrical Engineering; 2020, 2, 1; 17-24
2658-2058
2719-2954
Pojawia się w:
Journal of Automation, Electronics and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Kto jest kontrolerem?” Problem podmiotu i świadomego „ja” we współczesnej psychologii kognitywnej
“Who is the controller?” Agent, consciousness and “self” in light of contemporary cognitive psychology
Autorzy:
Trzópek, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2128549.pdf
Data publikacji:
2019-03-29
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
cognitive sciences
agent
will
agency
consciousness
automatic processes
implicit cognition
apparent mental control
cognitive unconsciousness
Opis:
Podejmowanie przez psychologię kognitywną (cognitive sciences i nauki pokrewne: social cognition, cognitive neuroscience, social neuroscience itp.) problematyki związanej z takimi kategoriami, jak: świadomość, ,ja” czy podmiot stanowi - po latach nieobecności - swoiste novum. Na tym tle wyłania się specyficzny sposób widzenia osoby i natury jej działania. Jego istotną cechą staje się podważenie potocznych wyobrażeń na temat funkcjonowania człowieka jako świadomego podmiotu, kierującego własnymi działaniami zgodnie ze swoimi świadomymi planami, intencjami czy wolą: wzrastająca liczba badań wskazuje, że procesy odpowiedzialne za ludzkie zachowanie w znacznej mierze przebiegają w sposób subświadomy i automatyczny, a to, co sobie uświadamiamy, to jedynie efekty ich działania. W artykule przedstawione zostaną empiryczne argumenty (zwłaszcza z obszaru społecznej psychologii poznawczej oraz badań neurobiologicznych) przemawiające za tą właśnie tezą. Uzmysłowienie sobie roli tzw. poznawczej nieświadomości prowadzi zarazem badaczy do szeregu pytań. Ważniejsze z nich dotyczą tego: kto (jeśli nie podmiot utożsamiany ze świadomym „ja”) kieruje zachowaniem i sprawuje nad nim kontrolę?, a także tego: jaka jest rola świadomości, ,ja” i doświadczenia bycia podmiotem? Sytuacja ta skłania również do zadania pytania bardziej podstawowego: czy naukom szczegółowym dostępna jest kategoria „podmiotu jako takiego”?
Categories such as: “consciousness”, “self’, “agent” - after decades of absence - regain recognition as a specific novelty in the field of cognitive psychology (cognitive sciences and related disciplines: social cognition, cognitive neuroscience, social neuroscience, etc.). In this context, a particular approach towards the person and the nature of his/her actions emerges. The main mark of this approach seems to undermine our commonsense convictions on the man’s functioning as a conscious agent who controls the course of his actions according to his conscious plans, intentions or will: an increasing amount of evidence indicates that complex processes responsible for human behavior do not require awareness; an important class of these unconscious processes is automatic: we are only aware of some of their effects. The text provides a number of empirically grounded arguments (advanced especially in the field of social cognition and neuroscience) in favor of the thesis mentioned above. Some evidence confirms a significant role of so called “cognitive unconsciousness” in various complex mental processes, although this raises some questions. Just to name some of the key difficulties: Who (if not the conscious "I”) is the controller of one S own behavior and who guides it? What do we need consciousness for? What is the role of human sense of agency and a subjective experience of the will? And finally, to bring forward the fundamental one: can a scientific theory deal with the category of an ‘agent as such ’?
Źródło:
Roczniki Psychologiczne; 2010, 13, 1; 129-154
1507-7888
Pojawia się w:
Roczniki Psychologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of reconfigurability in interoperation manufacturing buffers for smart factory
Autorzy:
Grznár, Patrik
Mozol, Štefan
Vavrík, Vladimír
Gabajová, Gabriela
Furmannová, Beáta
Powiązania:
https://bibliotekanauki.pl/articles/104086.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
smart factory
smart manufacturing
interoperating production buffers
agent control
reconfigurability
inteligentna fabryka
Inteligentna produkcja
bufory produkcyjne
kontrola agentów
rekonfigurowalność
Opis:
In this article, it is described how the reconfigurable inter-operational buffers system built on the Digital Twin platform. Interoperating production buffers are now widely used in production. Their effect on the production system can be seen in decreasing downtime. From a cost-based point of view, the interoperating production buffers may generate a gain from the reduction in the volume of work-in-process, with which we increase production performance. This ratio depends on the average number of products that the buffers contain. The average number of pieces in the buffer is limited by the capacity of the buffer. The impact of turbulence in production is seen precisely on the average content of inter-operational production buffers. If we want to maintain work-in-process on optimal values, it is necessary to calculate and maintain the optimal capacity of each interoperating production buffer on the line. In the context of Smart Factory, it is currently possible that the current capacity of the interoperating production buffers is maintained according to the current state of production. In the subject system, real production facilities communicate with each other through the IoT as autonomous agents, which are decided on the basis of a formula to calculate the optimal capacity of the buffers, the prediction of faults and negotiation, thus actively maintaining the optimal capacity of intermediate operating production buffers for Smart Factory support.
Źródło:
Quality Production Improvement - QPI; 2019, 1, 1; 575-582
2657-8603
Pojawia się w:
Quality Production Improvement - QPI
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intelligent multi-agent system for DC microgrid energy coordination control
Autorzy:
Qaderi-Baban, P.
Menhaj, M. B.
Dosaranian-Moghadam, M.
Fakharian, A.
Powiązania:
https://bibliotekanauki.pl/articles/200811.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-agent system
DC microgrid
energy management
coordinated control
voltage control
Opis:
In this paper, an energy coordination control method based on intelligent multi-agent systems (MAS) is proposed for energy management and voltage control of a DC microgrid. The structure of the DC microgrid is designed to realize the mathematical modeling of photovoltaic cells, fuel cells and batteries. A two-layer intelligent MAS is designed for energy coordination control: grid-connection and islanding of a DC microgrid is combined with energy management of PV cells, fuel cells, loads and batteries. In the hidden layer and the output layer of the pro-posed neural network there are 17 and 8 neurons, respectively, and the “logsig” activation function is used for the neurons in the network. Eight kinds of feature quantities and 13 different actions are taken as the input and output parameters of the neural network from the micro-source and the load, and the as the control center agent’s decision-makers. The feasibility of the proposed intelligent multi-agent energy coordination control strategy is verified by MATLAB/Simulink simulation, and three types of examples are analyzed after increasing the load. The simulation results show that the proposed scheme exhibits better performance than the traditional approaches.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 4; 741-748
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A distributed method for transient simulations that dynamically considers supplementary results from autonomous software agents
Rozproszona metoda do symulacji stanów przejściowych dynamicznie uwzględniająca dodatkowe wyniki autonomicznych agentów programowych
Autorzy:
Jüttner, M.
Grabmaier, S.
Rohloff, J.
Vögeli, D.
Rucker, W. M.
Göhner, P.
Weyrich, M.
Powiązania:
https://bibliotekanauki.pl/articles/408343.pdf
Data publikacji:
2018
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
automatic step size control
distributed computing
software agent
transient simulation
automatyczna kontrola wielkości kroku
przetwarzanie rozproszone
agenta programowa
symulacja przejściowa
Opis:
Based on autonomous software agents capable of calculating individual numerical field problems, a distributed method for solving transient field problems is presented. The software agents are running on distributed resources connected via a network and represent a dynamic calculation environment. Communication and data exchange between multiple agents enables their collaboration and allows decisions based on distributed overall knowledge. As unique characteristics, no central unit influences the solution process at any time. The presented simulation example and its evaluated calculation process proves the method to benefit from redundant resources.
W oparciu o autonomiczne agenty programowe zdolne do obliczania indywidualnych numerycznych problemów pola, przedstawiono rozproszoną metodę rozwiązywania stanów przejściowych pola. Agenty programowe działają na zasobach rozproszonych połączonych za pośrednictwem sieci i reprezentują środowisko obliczeń dynamicznych. Komunikacja i wymiana danych między wieloma agentami umożliwia ich współpracę i pozwala podejmować decyzje w oparciu o rozproszoną wiedzę ogólną. Jako unikalna charakterystyką jest fakt, że żadna jednostka centralna nie wpływa w żadnym momencie na proces rozwiązania. Przedstawiony przykład symulacji i jej oszacowany proces obliczeniowy dowodzi, że metoda umożliwia korzystanie z nadmiarowych zasobów.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2018, 8, 2; 35-38
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distributed control systems integration and management with an ontology-based multi-agent system
Autorzy:
Choiński, D.
Senik, M.
Powiązania:
https://bibliotekanauki.pl/articles/201395.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
distributed control system
multi-agent system
software based integration systems
ontology
Petri nets
system wieloagentowy
ontologia
sieci Petriego
inteligentny system kontroli
Opis:
The purpose of this study is to create, analyze and reuse an ontology-based approach during implementation of a multi-agent system (MAS) capable of integrating different elements of a distributed control system (DCS). Ontology is considered as knowledge about a particular domain. It includes static description of the domain’s structure and properties, by means of which it is possible to define the domain’s dynamic states, transitions between those states and conditions of those transitions. Because of that, it is possible to analyze such ontology in terms of modal logic in predicate logic settings.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 5; 613-620
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observer-based leader-following formation control of uncertain multiple agents by integral sliding mode
Autorzy:
Qian, D. W.
Tong, S. W.
Li, C. D.
Powiązania:
https://bibliotekanauki.pl/articles/201511.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-agent system
formation control
integral sliding mode control
uncertainty
nonlinear disturbance observer
stability
system wieloagentowy
kontrola formacji
integralne sterowanie ślizgowe
niepewność
nieliniowy obserwator zakłóceń
stabilność
Opis:
This paper investigates the formation control problem of multiple agents. The formation control is founded on leader-following approaches. The method of integral sliding mode control is adopted to achieve formation maneuvers of the agents based on the concept of graph theory. Since the agents are subject to uncertainties, the uncertainties also challenge the formation-control design. Under a mild assumption that the uncertainties have an unknown bound, the technique of nonlinear disturbance observer is utilized to tackle the issue. According to a given communication topology, formation stability conditions are investigated by the observer-based integral sliding mode formation control. From the perspective of Lyapunov, not only is the formation stability guaranteed, but the desired formation of the agents is also realized. Finally, some simulation results are presented to show the feasibility and validity of the proposed control scheme through a multi-agent platform.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 1; 35-44
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Basic substances under EC 1107/2009 phytochemical regulation: experience with non-biocide and food products as biorationals
Autorzy:
Marchand, P.A.
Powiązania:
https://bibliotekanauki.pl/articles/66289.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
basic substance
2009-1107-EC Directive
phytochemical regulation
experience
non-biocide
food product
biorational control
biological control
biological agent
plant protection
Opis:
Basic Substances are a newly effective category of Plant Protection Product under EC Regulation No 1107/2009. The first approved application of Equisetum arvense L. opened Part C of Implementing Regulation (EU) No 540/2011, which lists the basic substance approved. Although E. arvense was described as a fungicide extract, subsequent applications like chitosan were related to non-biocide molecules. Consequently, plant protection product data were collected from research on alternative or traditional crop protection methods. They are notably issued or derived from foodstuffs (plants, plant by-products, plant derived products, substances and derived substances from animal origin). Applications are currently submitted by our Institute, under evaluation at different stages of the approval process or already approved. Remarkably, this Basic Substance category under pesticide EU Regulation was surprisingly designed for these non-biocidal plant protection products. In fact, components described as the “active substance” of most of the actual applications are food products like sugars and lecithin. Basic Substance applications for these foodstuffs are therefore a straightforward way of easily gaining approval for them. Here we describe the approval context and detail the agricultural uses of theses food products as Biological Control Agents (BCAs) or biorationals for crop protection. From all deposited or approved Basic Substance Application (BSA), a proof has been provided that non-biocide and food products via physical barrier or lure effects may be effective plant protection products with an acceptable low profile of concern for public and agricultural safety.
Źródło:
Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fenton reagent and titanium dioxide nanoparticles as antifungal agents to control leaf spot of sugar beet under field conditions
Autorzy:
Hamza, A.
El-Mogazy, S.
Derbalah, A.
Powiązania:
https://bibliotekanauki.pl/articles/65947.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Fenton's reagent
titanium dioxide
nanoparticle
antifungal agent
disease control
leaf spot
sugar-beet
field condition
toxicity
Opis:
In this study, foliar sprays of Fenton solutions (Fenton reaction, Fenton-like reaction and Fenton complex), titanium dioxide (TiO2) and the recommended fungicide (chlorothalonil) were estimated in the control of sugar beet leaf spot caused by Cercospora beticola under field conditions in two growing seasons. In addition, the impacts of these treatments on some crop characters (leaf dry weight, root fresh weight, soluble solid content, sucrose content and purity of sugar) were examined. Biochemical and histological changes in the livers and kidneys of treated rats compared to an untreated control were utilized to assess the toxicity of the examined curative agents. Overall, chlorothalonil and Fenton complex were the most effective treatments for disease suppression in both tested seasons followed by Fenton-like reagent, Fenton’s reagent and TiO2, respectively. Growth and yield characters of treated sugar beet significantly increased in comparison to an untreated control. There were mild or no (biochemical and histological) changes in the livers and kidneys of treated rats compared to the control. Fenton solutions and TiO2 may offer a new alternative for leaf spot control in sugar beet.
Źródło:
Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation and evaluation of biocontrol agents in controlling anthracnose disease of mango in Thailand
Autorzy:
Rungjindamai, N.
Powiązania:
https://bibliotekanauki.pl/articles/66340.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
isolation
evaluation
biological control
biological agent
controlling
anthracnose
Bacillus
plant disease
Colletotrichum gloeosporioides
epiphyte
mango
Thailand
Opis:
The agricultural based economy is a core business in Thailand and food export is one of the main sources of income for the Thai population. However, pesticides are overused and misused. As a result there is an urgent need to reduce the use of synthetic chemicals. Biological control offers an alternative to the use of pesticides. Mango (Mangifera indica L.) is widely planted in Thailand and is one of the major cash crops for international export. However, mango suffers from various diseases especially anthracnose, a fungal disease caused by Colletotrichum gloeosporioides. One hundred and twelve isolates of epiphytic microbes were isolated from healthy leaves and fruits of mangoes; this included 93 and 19 isolates of epiphytic bacteria and yeasts, respectively. They were screened for bioactivity against a pathogenic strain of C. gloeosporioides isolated from diseased mangoes using a dual culture technique. Out of 112 isolates, eight isolates exhibited at least 60% inhibition. These isolates were further screened for their inhibition on mango using fruit inoculation. Two isolates reduced the lesion sizes caused by C. gloeosporioides compared to control treatment. These two isolates, based on phenotypical and biochemical tests, were identified as Bacillus sp. MB61 and Bacillus sp. LB72.
Źródło:
Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł

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