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2019

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Effects Of Organic Acids On Alleviation Of Aluminum Toxicity In Alfalfa, Yuan An, Peng Zhou Dec 2019

Effects Of Organic Acids On Alleviation Of Aluminum Toxicity In Alfalfa, Yuan An, Peng Zhou

IGC Proceedings (1977-2023)

On a global scale, acidic soils cover an estimated 37.8 million km2 of the earth's surface, and up to 50% of the world’s potentially arable soils are acidic. Aluminum (Al) is highly abundant in acid soil conditions. At low (< 5.5) pH, a toxic form of aluminum, Al3+, is solubilized from aluminosilicate clay minerals into soil solutions. High concentrations of Al3+ in soil solutions caused seriously damage to plants by enhancing lipid per-oxidation, limiting root elongation and nutrient uptake, as well as decreasing plant growth (Kochian et al. 2005). Al toxicity represents one of the most important constraints for agricultural production in areas …

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Performance Of Some Forages Species (Festuca Arundinacea L., Chloris Gayana Var. Katambora, Lotus Corniculatus L. And Medicago Sativa L.) In Saline Soil, Süleyman Temel, Uğur Şimşek, Bilal Keskin, İbrahim H. Yılmaz Dec 2019

Performance Of Some Forages Species (Festuca Arundinacea L., Chloris Gayana Var. Katambora, Lotus Corniculatus L. And Medicago Sativa L.) In Saline Soil, Süleyman Temel, Uğur Şimşek, Bilal Keskin, İbrahim H. Yılmaz

IGC Proceedings (1977-2023)

Salinity is a soil degradation process which reduces plant diversity and agricultural productivity, decreases fertility and devalues the land in regions with arid and semi-arid climate. This process inhibits water and nutrient intake of plants from soil due to changeable nitrogen percentage and/or the intensity of soluble salt concentration. When the fact that agricultural lands are limited around the world and that the need for nutrition increases incrementally is taken into consideration, it is obvious that available lands should be used more effectively. Hence, it is quite crucial to reclaim saline soil and utilize it more economically (Woods 1996).

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Salt Secretion Is Essential For Xero-Halophyte Reaumuria Soongorica Responding To Osmotic Stress, Ai-Ke Bao, Hang-Yu Zhou, Suomin Wang Dec 2019

Salt Secretion Is Essential For Xero-Halophyte Reaumuria Soongorica Responding To Osmotic Stress, Ai-Ke Bao, Hang-Yu Zhou, Suomin Wang

IGC Proceedings (1977-2023)

Reaumuria soongorica, a xero-halophyte semi-shrub belonging to Tamaricaceae with excellent adaptability to adverse arid and salinity environments of northwest China, serves important ecological roles in the improvement of saline-alkali soil and dune stabilisation, and also is an attractive fodder shrub in desert steppe (Ma et al. 2011). Previous studies demonstrated that secreting salt via salt glands is an important strategy for R. soongorica adapting to high salinity environments (Zhou et al. 2012). However, very little is known about the role of salt secretion in the plant’s responses to drought. Therefore, in the present work, R. soongorica seedlings …

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Assessment Of Summer Drought Tolerance And Persistence Of Some Grass Cultivars In Algerian Semi Arid Conditions, Mohamed Mefti, Hamena Bouzerzour, Abderrezak Chebouti, Aissa Abdelguerfi Dec 2019

Assessment Of Summer Drought Tolerance And Persistence Of Some Grass Cultivars In Algerian Semi Arid Conditions, Mohamed Mefti, Hamena Bouzerzour, Abderrezak Chebouti, Aissa Abdelguerfi

IGC Proceedings (1977-2023)

Stress-tolerant forage resources are increasingly needed for the environmental and economic sustainability of extensive Mediterranean livestock systems. Perennial forages belonging to two species: Festuca arundinacea Schreb. (tall fescue) and Dactylis glomerata L. (cocksfoot) can be a valuable alternative to annuals, if they can survive across successive summer droughts. Poor persistence of sown perennial pasture grasses is a problem in regions of the World with Mediterranean climates where the most stressful, life threatening season is a summer characterised by long and often severe droughts with high temperatures. The objective of this study is to compare 14 grass cultivars in an Algerian …

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Summer Dormancy And Survival Of Tall Fescue In Relation To Endophyte Presence, J. L. Thomas, Charles P. West, D. P. Malinowski Dec 2019

Summer Dormancy And Survival Of Tall Fescue In Relation To Endophyte Presence, J. L. Thomas, Charles P. West, D. P. Malinowski

IGC Proceedings (1977-2023)

True summer dormancy in temperate perennial grasses is the ability to survive summer stresses by ceasing growth and senescing vegetative tissues independently of water supply, as opposed to summer-active grasses, which respond to rains by continuing growth, but senesce during droughts (Volaire and Norton 2006). Summer dormancy is a common drought-escape mechanism for Mediterranean-origin perennial grasses, but is also being considered as a potentially useful trait in semiarid to humid zones whose climates are not strictly Mediterranean, but where temperate grass survival is threatened by summer heat and water deficits (Malinowski et al. 2005). Moreover, summer dormancy may provide …

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Screening Of Ssr Primers And Evaluation Of Salt Tolerance In 20 Sweet Sorghum Varieties For Silage, Qiuwen Zhan, Chunfei Shu, Xiaoliang Li, Min Zhan, Jieqin Li, Ping Lin Dec 2019

Screening Of Ssr Primers And Evaluation Of Salt Tolerance In 20 Sweet Sorghum Varieties For Silage, Qiuwen Zhan, Chunfei Shu, Xiaoliang Li, Min Zhan, Jieqin Li, Ping Lin

IGC Proceedings (1977-2023)

Sweet sorghum belongs to the genus Sorghum in the family Gramineae. It is a variant of common grain sorghum, with characteristics of resistance to drought, flood, barren soil and soil salinity and alkalinity (Zhan et al. 2008). Since the stem of sweet sorghum is rich in sugar, it is usually harvested as silage fodder in grasslands. Often arable land used for forage production is salt-affected. Chinnusamy et al. (2005) have screened and identified a large range of different varieties for salinity tolerance, but there are no published reports of studies screening SSR primers and evaluating the salt tolerance in …

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Plantain (Plantago Lanceolata) Outperforms Chicory (Cichorium Intybus) Under Moisture Stress In Glasshouse, Lydia M. Cave, Peter D. Kemp, Paul R. Kenyon, Stephen T. Morris Dec 2019

Plantain (Plantago Lanceolata) Outperforms Chicory (Cichorium Intybus) Under Moisture Stress In Glasshouse, Lydia M. Cave, Peter D. Kemp, Paul R. Kenyon, Stephen T. Morris

IGC Proceedings (1977-2023)

Forage chicory (Cichorium intybus) and plantain (Plantago lanceolata) are now widely used throughout the world as high feed quality perennial herbage (Sanderson et al. 2003; Labreveux et al. 2006; Li et al. 2010; Golding et al. 2011; Hutton et al. 2011). Both are taprooted plants and are thus likely to confer a degree of drought tolerance through accessing water deeper in the soil profile (Kemp et al. 2010). Nie et al. (2008) reported chicory can tolerate moisture stress to a greater degree than plantain. However, overall little is known …

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Adaptive Responses Of Brachiaria Grasses To Hypoxia Stress, Juan A. Cardoso, Juan Jiménez, Joisse Rincón, Idupulapati M. Rao Dec 2019

Adaptive Responses Of Brachiaria Grasses To Hypoxia Stress, Juan A. Cardoso, Juan Jiménez, Joisse Rincón, Idupulapati M. Rao

IGC Proceedings (1977-2023)

It is likely that oxygen shortage in waterlogged soils is the most limiting factor for plant growth, restricting root aerobic respiration and ATP production (Vartapetian and Jackson 1997). When oxygen becomes limiting for oxidative phosphorylation, plant cells depend on alternative metabolic pathways to produce ATP (Rocha et al. 2010). The induction of fermentative metabolism is considered of adaptive value to maintain ATP production under oxygen-limited conditions. Ethanol is the main end product of fermentation metabolism in plants. Alcohol dehydrogenase (ADH) is a key enzyme in ethanolic fermentation. Roots can sustain aerobic respiration under oxygen deficiency if aerenchyma is present. …

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Mission-Driven Recordkeeping: The Need For Rim Staff In U.S. Nonprofit Organizations, Emily Mercer Dec 2019

Mission-Driven Recordkeeping: The Need For Rim Staff In U.S. Nonprofit Organizations, Emily Mercer

School of Information Student Research Journal

As a robust and growing industry, often with strong ties to communities served, there is much potential for nonprofit organizations to harness powerful and rich databases of cultural information not found in any other sector. Yet research shows that in most cases, nonprofit organizations operate on limited budgets, tight deadlines, and may see the task of properly managing records as counter-productive to the mission of the organization. This research examines the systems of recordkeeping in nonprofit organizations in the U.S. and argues that record keeping staff must be considered an essential component for a nonprofit organization to survive and thrive.

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Public Libraries Supporting Health And Wellness: A Literature Review, Heather Elia Dec 2019

Public Libraries Supporting Health And Wellness: A Literature Review, Heather Elia

School of Information Student Research Journal

The purpose of this literature review is to examine the ways in which public libraries are supporting the health and wellness needs of their communities. Although public libraries are not commonly thought of in association with healthcare, research shows that many libraries are partnering with other community organizations and healthcare professionals to provide programs and services intended to address the health and wellness needs of their patrons. Using scholarly journals, as well as trade and news publications, the author investigated numerous methods of health-themed service provision, including: consumer health information, embedded professionals, visiting health services, mental health support, wellness-based programming, …

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Her Story: Accidental Library Instruction, Michelle Leasure Dec 2019

Her Story: Accidental Library Instruction, Michelle Leasure

School of Information Student Research Journal

Game-based learning is a relatively new pedagogical method that typically targets students of the current and upcoming generations. Librarians have gradually begun experimenting with gamifying elements of library and research skills instruction to varying degrees of success. While some case studies and theoretical analyses are available currently, more published data will be necessary to evaluate and direct the development of game-based library instruction in the coming years. This paper explores attempts to use game-based learning techniques in library instruction courses and sessions, specifically highlighting Project Velius (developed by the University of Alabama Libraries) and its similarities to the commercially successful …

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Genealogical Plagiarism And The Library Community, Katherine S. Richers Dec 2019

Genealogical Plagiarism And The Library Community, Katherine S. Richers

School of Information Student Research Journal

Plagiarism is regarded as an academic crime, but can affect hobbies that rely on research and information sharing such as genealogy. The issue is well-known within the genealogy community. However, information professionals who aid genealogists in their research may not know enough about the issue. How can the library field respond constructively to the issue of uncontrolled plagiarism in genealogy? While the genealogy community condemns plagiarism and offers resources to correct it, current library practices concentrate on services and not on plagiarism education in the genealogy context, concentrating more on copyright and legal problems. The library field can help professionals …

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The Information Behaviors Of Fiction Writers: A Systematic Approach To An Understudied Information Community, Lisa Lowdermilk Dec 2019

The Information Behaviors Of Fiction Writers: A Systematic Approach To An Understudied Information Community, Lisa Lowdermilk

School of Information Student Research Journal

Within the context of creative information communities in general, fiction writers remain a relatively understudied community. This article seeks to rectify that gap by highlighting the information behaviors of fiction writers, including the ways in which they network, as well as the processes they use when writing. In doing so, it reveals that fiction writers of all genres have many experiences in common, such as the "seed incident" that serves as the starting point when writing fiction. In addition, it examines fiction writers' impact on readers, with the implication that everyone--writers and non-writers alike--would benefit from understanding fiction writers' information …

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Zine Authors’ Opinions About Public And Academic Library Collections Of Their Work, Ali N. Sadik-Ogli Dec 2019

Zine Authors’ Opinions About Public And Academic Library Collections Of Their Work, Ali N. Sadik-Ogli

School of Information Student Research Journal

No abstract provided.

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Understanding Diversity And Intellectual Freedom As #Corevalues, Deborah Hicks Dec 2019

Understanding Diversity And Intellectual Freedom As #Corevalues, Deborah Hicks

School of Information Student Research Journal

No abstract provided.

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Srj: Leading The Genre-Defying Lis Profession, Greta Snyder Dec 2019

Srj: Leading The Genre-Defying Lis Profession, Greta Snyder

School of Information Student Research Journal

No abstract provided.

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Revision Of The Genus Reddyanus From Southeast Asia, With Description Of Five New Species From Cambodia, Malaysia, Thailand And Vietnam (Scorpiones: Buthidae), František Kovařík, František Šťáhlavský Dec 2019

Revision Of The Genus Reddyanus From Southeast Asia, With Description Of Five New Species From Cambodia, Malaysia, Thailand And Vietnam (Scorpiones: Buthidae), František Kovařík, František Šťáhlavský

Euscorpius

Five new species are described: Reddyanus furai sp. n. from Vietnam, R. hofereki sp. n. and R. majkusi sp. n. from Malaysia, R. rolciki sp. n. from Vietnam and Cambodia, and R. schwotti sp. n. from Thailand and Cambodia, fully complemented with color photographs of live and preserved specimens, as well as their habitats. New species are compared with all other species from this region. In addition to the analysis of external morphology, we also describe the karyotypes of R. furai sp. n. (2n=14), R. majkusi sp. n. (2n=16), R. rolciki sp. n. (2n=14), and R. schwotti (2n=11). …

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The Symphonies Of Johannes Brahms: An Exploration Of Performance Considerations For The Orchestral Trombonist, Wesley Louis-Neil Thompson Dec 2019

The Symphonies Of Johannes Brahms: An Exploration Of Performance Considerations For The Orchestral Trombonist, Wesley Louis-Neil Thompson

Open Access Dissertations

Before its entrance into the instrumental genre of “The Symphony”, the trombone had held a long history of doubling vocal lines in sacred vocal music, oratorios, and operatic traditions. Ludwig van Beethoven is often credited as the first major composer to include the trombones in a symphony in his Symphony No. 5, however there were several composers that had written for trombones in their symphonies before Beethoven. Since the time of Beethoven, the trombone has become a permanent member of the symphony orchestra. Johannes Brahms was greatly influenced by Beethoven and the other Classical and Baroque masters including their use …

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Study Of Photovoltaic And Photoresistive Properties Of A Thin Cdte Layer In A Film Heterostructure N-Cds / P-Cdte, O M. Мaмаtоv, N Kh Yuldashev Dec 2019

Study Of Photovoltaic And Photoresistive Properties Of A Thin Cdte Layer In A Film Heterostructure N-Cds / P-Cdte, O M. Мaмаtоv, N Kh Yuldashev

Scientific-technical journal

The volt-ampere, lux-ampere, lux-voltage characteristics of film by thickness with the photo voltage property, grown up on photo resistive layer ( ) with a transparent glass substrate are investigated. It is revealed, that photo voltage properties of film are essentially modulated at excitation of photoconductivity of the layer. In particular, backlight from a substrate own light with intensity completely removes photo voltage in layer.

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The Effect Of Filler On The Crystalline Structure Of Polycaproamide, A A. Haydarov, S S. Sаbirov Dec 2019

The Effect Of Filler On The Crystalline Structure Of Polycaproamide, A A. Haydarov, S S. Sаbirov

Scientific-technical journal

Differential thermal analysis was used for investigation of the crystal structure, some thermal and structural parameters of polycaproamide samples received by method of anionic activated polymerization of caprolactam. Essential influences of filler and its concentration on the crystal structure and thermal properties of the polymeric material are determined.

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Analysis Of Electrical Parameters Of The Ionization System At High Frequency Currents, X T. Yuldashev Dec 2019

Analysis Of Electrical Parameters Of The Ionization System At High Frequency Currents, X T. Yuldashev

Scientific-technical journal

The influence of the physical characteristics of the elements of the ionization system semiconductor-gas discharge gap on its sensitivity and the quality of the images is considered. An analysis of the patterns of image formation based on experimental studies and theoretical estimates showed that the high-frequency mode of the supply voltage determines the relatively low efficiency of modulation of the current by the input illumination, which is a consequence of the increasing role of the capacitive component of the conductivity of the photodetector at high frequencies and an increase in the resistance of the recording part (emulsion ) at low …

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Experimental Study Of The Deformation Properties Of Water-Saturated Leather Semi-Finished Products, G A. Bakhadirov, T Yu Amanov, G N. Tsoy, А М. Nabiev, M U. Musirov Dec 2019

Experimental Study Of The Deformation Properties Of Water-Saturated Leather Semi-Finished Products, G A. Bakhadirov, T Yu Amanov, G N. Tsoy, А М. Nabiev, M U. Musirov

Scientific-technical journal

The paper presents the results and analysis of experimental studies of the deformation properties and characteristics of moisture-saturated leather semi-finished product on topographic areas and coatings of working rolls.

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The Cleaning Seed Cotton Of Small Weed Impurities And Theoretical Research To Improve Its Efficiency, B Mardonov, Kh S. Usmanov, F N. Sirojiddinov Dec 2019

The Cleaning Seed Cotton Of Small Weed Impurities And Theoretical Research To Improve Its Efficiency, B Mardonov, Kh S. Usmanov, F N. Sirojiddinov

Scientific-technical journal

The authors identified theoretical patterns that describe the process of efficient extraction of small weed impurities from raw cotton. The results obtained allow us to establish the speed of the drum and the angle of its grip by the mesh surface, at which the required degree of loosening of the raw cotton is ensured, at which fine trash is effectively released. As a result of practical research, an innovative version of the cleaner has been developed.

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Development Of A Vibratory Vulner Model With Regulated Parameters, R J. Tojiev, H M. Sadullaev, M D. Gerasimov, B A. Alimatov, S А. Kaskov, A M. Olekhnovich Dec 2019

Development Of A Vibratory Vulner Model With Regulated Parameters, R J. Tojiev, H M. Sadullaev, M D. Gerasimov, B A. Alimatov, S А. Kaskov, A M. Olekhnovich

Scientific-technical journal

Industrial vibrating screens for sorting materials, as a rule, have fixed values of structural and technological parameters. The article provides information on the development of a model of a vibrating screen with adjustable parameters.

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Experimental Research Of Processes Of Hydrodynamics And Heat Exchange In Trial Heat Exchangers Of Type «A Pipe In A Pipe», U Kh Ibragimov, D N. Mukhiddinov, S B. Abdinazarov Dec 2019

Experimental Research Of Processes Of Hydrodynamics And Heat Exchange In Trial Heat Exchangers Of Type «A Pipe In A Pipe», U Kh Ibragimov, D N. Mukhiddinov, S B. Abdinazarov

Scientific-technical journal

This article presents results and generalizing empirical dependences of experimental and theoretical researches of processes of hydrodynamics and heat exchange in trial heat exchangers of type «a pipe in a pipe».

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Intensification Of Heat Transfer In Crosscut Washing Of Heat Exchanger’S Matrix, R J. Tojiev, A A. Axunbayev, A A. Axrorov Dec 2019

Intensification Of Heat Transfer In Crosscut Washing Of Heat Exchanger’S Matrix, R J. Tojiev, A A. Axunbayev, A A. Axrorov

Scientific-technical journal

In the article, the hydrodynamic state in the case of transverse washing of tube bundles and on the basis of its processes of intensification of heat exchange in chess and corridor arrangements of tube bundles in heat exchangers discussed. Ways of intensification of heat exchange during turbulence of fluid flow regimes in heat exchangers described.

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Potential Structure Of Dust Coming Out Of Process Of Cotton Reproduction, M T. Xodjiyev, I Z. Abbazov, O N. Alimov Dec 2019

Potential Structure Of Dust Coming Out Of Process Of Cotton Reproduction, M T. Xodjiyev, I Z. Abbazov, O N. Alimov

Scientific-technical journal

In this article the properties of dust allowing to retain waste of fibers, which are thrown out from production are researched and to bring concentration of dust in the atmosphere to normal level. For this purpose it was defined that dust and the form of powder, the chemical composition, density, a specific surface, stickiness and the strewing ability of dust were defined. It was claimed that it is necessary to carry out scientific-theoretical studies taking into account these parameters for the purpose of normal cleaning of particles of dust.

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Methodological Aspects Of Assessing And Optimizing The Reliability Of Electrical Installations Of Self-Propelled Rolling Stock Of The Railway, Z G. Mukhamedova Dec 2019

Methodological Aspects Of Assessing And Optimizing The Reliability Of Electrical Installations Of Self-Propelled Rolling Stock Of The Railway, Z G. Mukhamedova

Scientific-technical journal

The analysis and assessment of the reliability calculation and the choice of engineering solutions for its maintenance in the operation of electrical installations of railway self-propelled rolling stock are given in the paper. An example of solving a practical problem using the standard and special methods of the theory of reliability and optimal solutions is considered.

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Research And Testing Of Welding Modes For Quality Formation Of The Root Joint, A E. Sotvoldiev, S M. Yusupov, I R. Maxmudov Dec 2019

Research And Testing Of Welding Modes For Quality Formation Of The Root Joint, A E. Sotvoldiev, S M. Yusupov, I R. Maxmudov

Scientific-technical journal

The article raises the issue of the use of special ceramic pads for welding, which today are a simple and effective method of obtaining a high quality welded seam. Ceramic pads make it possible to obtain a qualitative return roller without additional expensive technological processes: grinding, sampling and welding.

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The Double Layer Thickness Of Water-Bearing Rocks Under Rapid Change In Permeability And Presence Of Vertical Waterexchange Between Layers, B H. Abdullaev, S I. Khudaykulov, U A. Sadiqkova, F H. Nishonov Dec 2019

The Double Layer Thickness Of Water-Bearing Rocks Under Rapid Change In Permeability And Presence Of Vertical Waterexchange Between Layers, B H. Abdullaev, S I. Khudaykulov, U A. Sadiqkova, F H. Nishonov

Scientific-technical journal

The article considers two-layer structure of aquifer strata with horizontal bedding. On the upper, poorly permeable aquifer enclosed of water with a free surface. The bottom layer with greater permeability. Examines the movement of seepage waters. The double layer thickness of water-bearing rocks under rapid change in permeability and presence of vertical water exchange between layers".

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