Powdery mildew of barley and its control

1970 ◽  
Vol 6 (3) ◽  
pp. 122-127 ◽  
Author(s):  
D. H. Brooks

Powdery mildew is believed to be the most important disease attacking barley over a large part of the world. Recent experiments with fungicides have indicated that losses due to the disease arc generally greater than had been suspected. The discovery of a systemic fungicide, which can be applied to the crop as a seed-dressing, a granule or as a spray, promises greatly improved control. The adoption of cultural measures and the use of resistant varieties offer an integrated approach.

2019 ◽  
pp. 05-09

The presence study deals with powdery mildews in various cucurbits in Katsina city (Barhim Estate, Kofar Durbi, Kofar Sauri, Kofar Marusa and Low Cost), Nigeria. The finding shows that the areas infested with powdery mildew is one of the important disease of cucurbits. The Sphaerotheca fuliginea was identified to be the causal organism present on all observed cucurbits in the study. Highest frequency of disease was found in Kofar Sauri(79%) fallowed by Kofar Marusa (68%), Kofar Durbi (66%), Barhim Estate (65%) and the lowest frequency of occurrence of disease was found in Low Cost (55%).The intensity of the disease was moderate to severe in general but it was high in many fields, the area-wise variation was also noticed. On vegetables, the highest frequency of occurrence of powdery mildew disease was observed on L. cylindrica (76.4%) followed by C. moschata (60%), C. sativus (59.3%), C. vulgaris (53.9%) and lowest was found on C. melo (44.4%). The highest intensity of disease was found on C. moschata, followed by L. cylindrica, C. sativus, C. vulgaris and C. melo.


2021 ◽  
Vol 13 (7) ◽  
pp. 4025
Author(s):  
Ahmet Faruk Aysan ◽  
Fouad Bergigui ◽  
Mustafa Disli

As the world is striving to recover from the shockwaves triggered by the COVID-19 crisis, all hands are needed on deck to transition towards green recovery and make peace with nature as prerequisites of a global sustainable development pathway. In this paper, we examine the blockchain hype, the gaps in the knowledge, and the tools needed to build promising use cases for blockchain technology to accelerate global efforts in this decade of action towards achieving the SDGs. We attempt to break the “hype cycle” portraying blockchain’s superiority by navigating a rational blockchain use case development approach. By prototyping an SDG Acceleration Scorecard to use blockchain-enabled solutions as SDG accelerators, we aim to provide useful insights towards developing an integrated approach that is fit-for-purpose to guide organizations and practitioners in their quest to make informed decisions to design and implement blockchain-backed solutions as SDG accelerators. Acknowledging the limitations in prototyping such tools, we believe these are minimally viable products and should be considered as living tools that can further evolve as the blockchain technology matures, its pace of adoption increases, lessons are learned, and good practices and standards are widely shared and internalized by teams and organizations working on innovation for development.


Economies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 59
Author(s):  
Dmitriy G. Rodionov ◽  
Evgenii A. Konnikov ◽  
Magomedgusen N. Nasrutdinov

The global COVID-19 pandemic has caused a transformation of virtually all aspects of the world order today. Due to the introduction of the world quarantine, a considerable share of professional communications has been transformed into a format of distance interaction. As a result, the specific weight of traditional components of the investment attractiveness of a region is steadily going down, because modern business can be built without the need for territorial unity. It should be stated that now the criteria according to which investors decide if they are ready to invest in a region are dynamically transforming. The significance of the following characteristics is increasingly growing: the sustainable development of a region, qualities of the social environment, and consistency of the social infrastructure. Thus, the approaches to evaluating the region’s investment attractiveness must be transformed. Moreover, the investment process at the federal level involves the determination of target areas of regional development. Despite the universal significance of innovative development, the region can develop much more dynamically when a complex external environment is formed that complements its development model. Interregional interaction, as well as an integrated approach to innovative development, taking into account not only the momentary effect, but also the qualitative long-term transformation of the region, will significantly increase the return on investment. At the same time, the currently existing methods for assessing the investment attractiveness of the region are usually heuristic in nature and are not universal. The heuristic nature of the existing methods does not allow to completely abstract from the subjectivity of the researcher. Moreover, the existing methods do not take into account the cyclical properties of the innovative development of the region, which lead to the formation of a long-term effect from the transformation of the regional environment. This study is aimed at forming a comprehensive methodology that can be used to evaluate the investment attractiveness of a certain region and conclude about the lines of business that should be developed in it as well as to find ways to increase the region’s investment attractiveness. According to the results of the study, a comprehensive methodology was formed to evaluate the region’s investment attractiveness. It consists of three key indicators, namely, the level of the region’s investment attractiveness, the projected level of the region’s investment attractiveness, and the development vector of the region’s investment attractiveness. This methodology is based on a set of indicators that consider the status of the economic and social environment of the region, as well as the status of the innovative and ecological environment. The methodology can be used to make multi-dimensional conclusions both about the growth areas responsible for increasing the region’s innovative attractiveness and the lines of business that should be developed in the region.


Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1971
Author(s):  
Asad Sarwar Qureshi

The Gulf Cooperation Council (GCC) countries are located in the driest part of the world with an annual per capita water availability of 500 m3 compared to the world average of 6000 m3. Agricultural water demand, which is more than 80% of the total water consumption, is primarily met through the massive exploitation of groundwater. The enormous imbalance between groundwater discharge (27.8 billion m3) and recharge (5.3 billion m3) is causing the excessive lowering of groundwater levels. Therefore, GCC countries are investing heavily in the production of nonconventional water resources such as desalination of seawater and treated wastewater. Currently, 439 desalination plants are annually producing 5.75 billion m3 of desalinated water in the GCC countries. The annual wastewater collection is about 4.0 billion m3, of which 73% is treated with the help of 300 wastewater treatment plants. Despite extreme water poverty, only 39% of the treated wastewater is reused, and the remaining is discharged into the sea. The treated wastewater (TWW) is used for the landscape, forestry, and construction industries. However, its reuse to irrigate food and forage crops is restricted due to health, social, religious, and environmental concerns. Substantial research evidence exists that treated wastewater can safely be used to grow food and forage crops under the agroclimatic conditions of the GCC countries by adopting appropriate management measures. Therefore, GCC countries should work on increasing the use of TWW in the agriculture sector. Increased use of TWW in agriculture can significantly reduce the pressure on freshwater resources. For this purpose, a comprehensive awareness campaign needs to be initiated to address the social and religious concerns of farming communities and consumers. Several internal and external risks can jeopardize the sustainable use of treated wastewater in the GCC countries. These include climate change, increasing costs, technological and market-driven changes, and regional security issues. Therefore, effective response mechanisms should be developed to mitigate future risks and threats. For this purpose, an integrated approach involving all concerned local and regional stakeholders needs to be adopted.


2014 ◽  
Vol 65 (4) ◽  
pp. 1025-1037 ◽  
Author(s):  
Graham R. D. McGrann ◽  
Anna Stavrinides ◽  
Joanne Russell ◽  
Margaret M. Corbitt ◽  
Allan Booth ◽  
...  

2021 ◽  
Vol 6 (7) ◽  
pp. e006794
Author(s):  
Didier Wernli ◽  
Mia Clausin ◽  
Nino Antulov-Fantulin ◽  
John Berezowski ◽  
Nikola Biller ◽  
...  

The current global systemic crisis reveals how globalised societies are unprepared to face a pandemic. Beyond the dramatic loss of human life, the COVID-19 pandemic has triggered widespread disturbances in health, social, economic, environmental and governance systems in many countries across the world. Resilience describes the capacities of natural and human systems to prevent, react to and recover from shocks. Societal resilience to the current COVID-19 pandemic relates to the ability of societies in maintaining their core functions while minimising the impact of the pandemic and other societal effects. Drawing on the emerging evidence about resilience in health, social, economic, environmental and governance systems, this paper delineates a multisystemic understanding of societal resilience to COVID-19. Such an understanding provides the foundation for an integrated approach to build societal resilience to current and future pandemics.


2020 ◽  
Vol 6 (Extra-B) ◽  
pp. 46-51
Author(s):  
Usmanova Liliya Abrarovna ◽  
Minakhmetova Aliya Ildarovna ◽  
Arkin Rosy Artuchi

This article is devoted to the linguoculturological competence development among schoolchildren in the process of teaching the Russian language. The object of scientific consideration was the lexeme "rainbow", which refers to the most ancient layer of words and has a deep national and cultural specificity. In accordance with the set tasks of our work, we used descriptive-analytical, stylistic, component, distributive methods of data analysis, the method of the semantic field. An integrated approach to the study of the lexeme "rainbow" implies a multifaceted analysis, including the analysis of dictionary definitions, collection of etymological information, consideration of word-formation relations, study of the paremiological status of a word, its discursive features, identification of traditional and individual author's meanings and, thus, reflection in the form of creative work of students, reflecting the information received about this lexeme... An upbringing approach in Russian language lessons helps students discover aesthetic ways of understanding the world, without which it is impossible to describe the Russian language picture of the world.    


EDIS ◽  
2013 ◽  
Vol 2013 (5) ◽  
Author(s):  
Natalia A. Peres ◽  
James C. Mertely

Powdery mildew occurs in most areas of the world where strawberries are grown, infecting leaves, flowers, and fruit. Infected transplants are normally the primary source of inoculum for fruiting fields in Florida, but even disease-free fields can become infected by conidia blown in from neighboring fields. Fields with susceptible cultivars should be surveyed regularly for powdery mildew, especially early in the season. Usually, controlling foliar infection helps to prevent fruit infection. This 4-page fact sheet was written by N. A. Peres and J. C. Mertely, and published by the UF Department of Plant Pathology, May 2013. http://edis.ifas.ufl.edu/pp129


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10503
Author(s):  
Jessica Wilkie ◽  
Timothy C. Cameron ◽  
Travis Beddoe

Fasciola hepatica is the causative agent of fasciolosis, an important disease of humans and livestock around the world. There is an urgent requirement for novel treatments for F. hepatica due to increasing reports of drug resistance appearing around the world. The outer body covering of F. hepatica is referred to as the tegument membrane which is of crucial importance for the modulation of the host response and parasite survival; therefore, tegument proteins may represent novel drug or vaccine targets. Previous studies have identified a profilin-like protein in the tegument of F. hepatica. Profilin is a regulatory component of the actin cytoskeleton in all eukaryotic cells, and in some protozoan parasites, profilin has been shown to drive a potent IL-12 response. This study characterized the identified profilin form F. hepatica (termed FhProfilin) for the first time. Recombinant expression of FhProfilin resulted in a protein approximately 14 kDa in size which was determined to be dimeric like other profilins isolated from a range of eukaryotic organisms. FhProfilin was shown to bind poly-L-proline (pLp) and sequester actin monomers which is characteristic of the profilin family; however, there was no binding of FhProfilin to phosphatidylinositol lipids. Despite FhProfilin being a component of the tegument, it was shown not to generate an immune response in experimentally infected sheep or cattle.


2020 ◽  
Vol 6 (17) ◽  
pp. 658-664

In modern education, methods of an integrated approach to learning are actively used. When studying literature, knowledge from the field of related sciences is acceptable: folklore, mythology, history, psychology, social science. This makes it possible to expand students' knowledge about the art world of a work, the national picture of the world of an ethnos, and socio-historical reality. The purpose of this work is to outline the role of the poem by N. Izhendey “The Voice of the Unborn Child” in the moral and aesthetic education of the younger generation, since the poem is included in the regional component of the school curriculum. The work depicts the hardships and troubles of the 90s. The twentieth century, as well as the problem of the future of the Chuvash language and the survival of its speakers. The elements of folklore and mythology used by the author contribute to the perception by students of a holistic world view of the Chuvash people: their aspirations, fears, hopes. In addition, the author creates, as it were, a new - more accessible to the modern generation - version of the myth of the origin of arçuri (wood goblin). In the analysis of these images semantic meaning, knowledge of folklore, rites associated with the birth of a child is appropriate. So, Chuvashs call a newborn baby çĕnĕ kayăk (new bird). If this is a boy, then he is called golden bird, a girl is called silver bird. The lyrical hero calls himself fire bird, because he wants to emphasize that his soul is like fire. He promises to clear the world of people from evil and injustice with his fire. “Birth in a shirt” is perceived as a sign of a happy fate, good luck. The umbilical cord of a child also belongs to such attributes. In the poem, the umbilical cord is the organ that connects the child with the mother, a detail uniting past and future generations. As long as this organ is intact, the child will live, and the connection between generations will not be interrupted. This problem has become especially urgent at the present time - in the era of globalization and the departure from traditional values. In the poem, the author focuses the attention of readers on the importance of maintaining the connection of generations, because without the past there is no future. The swallow in Chuvash mythology has a good meaning. It is associated with hard work and the ideal of beauty, the ability to speak fluently and beautifully. In the poem, the swallow represents the Chuvash language. The mother, feeling the germ of a new life, sings songs that give rise to the Chuvash spirit in the soul of the child. At the end of the story, the soul of the lyric hero returns to its native places in the likeness of a swallow. The use of knowledge about the features of folklore, its images, and the socio-historical development of the region allows a deeper understanding of the artistic intent of the work. When analyzing it, knowledge about traditions and continuity in literature and moral ideals of an ethnos is acceptable.


Sign in / Sign up

Export Citation Format

Share Document