Дисертації з теми "Wheat genotypes"
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Hendawy, Salah El-Sayed el. "Salinity tolerance in Egyptian spring wheat genotypes." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972317627.
Повний текст джерелаKhan, Javed Ahmad. "Salinity effects on 4D recombinant tetraploid wheat genotypes." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321525.
Повний текст джерелаRashid, Kazi Nayla. "The response of wheat genotypes to inoculation with Azospirillum brasilense." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/12898.
Повний текст джерелаMallah, Abdul Nabi. "Effects of water stress and salinity on contrasting wheat genotypes." Thesis, Bangor University, 1991. https://research.bangor.ac.uk/portal/en/theses/effects-of-water-stress-and-salinity-on-contrasting-wheat-genotypes(d16c3b0e-d0a0-44e3-ada1-79fce0bd31ce).html.
Повний текст джерелаEhtaiwesh, Amal Faraj Ahmed. "Effects of salinity and high temperature stress on winter wheat genotypes." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/34545.
Повний текст джерелаDepartment of Agronomy
P. V. Vara Prasad
Increased ambient temperature and soil salinity seriously affect the productivity of wheat (Triticum aestivum L.) which is an important cereal second to rice as the main human food crop. However, wheat plant is most susceptible to high temperatures and salinity at booting and flowering stages. Several studies have documented the effects of individual stress like salinity and high temperature stress on wheat, nonetheless little is known about effects of combined salinity and high temperature at critical growth stages. Therefore, the objectives of this research were (i) to screen winter wheat germplasm for salinity tolerance at the germination stages and to determine seedling growth traits associated with salinity tolerance, (ii) to evaluate the independent and combined effects of high temperature and salinity on winter wheat genotypes at the booting stages through growth, physiological, biochemical, and yield traits, and (iii) to evaluate the independent and combined effects of high temperature and salinity on winter wheat genotypes at the flowering stages through growth, physiological, biochemical, and yield traits. In the first experiment, 292 winter wheat genotypes (winter wheat germplasm) was screened for salinity stress at germination stage under controlled environments. The seeds were subjected to three levels of salinity, 0, 60, and 120 mM NaCl to quantify the effects of salinity on seed germination and seedling growth. In the second experiment, controlled environment study was conducted to quantity the independent and combined high temperature and salinity stress effects on growth, physiological, biochemical, and yield traits of twelve winter wheat genotypes during booting stage. Plants were grown at 20/15 °C (daytime maximum/nighttime minimum) temperature with 16 h photoperiod. At booting stages, the plants were exposed to optimum (20/15 °C) or high temperature (35/20 °C) and without (0 mM NaCl) and with (60, and 120 mM) NaCl. In the third experiment, plants were exposed to optimum or high temperature and with and without NaCl levels at flowering stages. The temperature regime and salinity levels were same as experiment II. The duration of stress was 10 d and after the stress period the plants were brought to optimum temperature and irrigated with normal water (0 mM NaCl). The results indicated that, at 120 mM NaCl, the final germination percentage was decreased and the mean daily germination was delayed. Irrespective of the genotype, salinity stress significantly decreased the shoot and root length; seedling dry matter production, and seedling vigor. Based on the seedling vigor index, the genotype GAGE, OK04507, MTS0531, TASCOSA, ENDURANCE and GUYMON, were found to be most tolerant and CO04W320, 2174-05, CARSON, OK1070275, TX02A0252 and TX04M410211 were the most susceptible to salinity at germination stage. Combined stresses of high temperature and salinity decreased photosynthetic rate and grain yields. Based on grain yield, the genotype TASCOSA was found to be most tolerant (64 % decrease) to combined stresses, and AVALANCHE was the most susceptible to combined stresses (75 % decrease) at booting stages. Similarly, at flowering stage, TX04M410211 had greater tolerance to combined stresses (65 % decline) as compared to GAGE (83 % decline). In both experiments, tolerance was associated with higher spikelet number and seed set. In conclusion, there is genetic variability among winter wheat genotypes that can be used in breeding programs to improve winter wheat yield under combined high temperature and salinity stress conditions.
Ali, A. "The effects of environmental stresses on performance of spring wheat genotypes." Thesis, Bangor University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382246.
Повний текст джерелаHoning, Jennifer. "Evaluation and implementation of DNA-based diagnostic methodology to distinguish wheat genotypes." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/638.
Повний текст джерелаSarvestani, Zeinolabedin Tahmasebi. "Water stress and remobilization of dry matter and nitrogen in wheat and barley genotypes /." Title page, table of contents and summary only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09phs251.pdf.
Повний текст джерелаDeng, Lingzhu. "Whole-Wheat Flour Milling and the Effect of Durum Genotypes and Traits on Whole-Wheat Pasta Quality." Diss., North Dakota State University, 2017. https://hdl.handle.net/10365/26737.
Повний текст джерелаZhang, Yujuan. "Wheat grain Avenin-like protein dynamics in relation to genotypes and environments." Thesis, Zhang, Yujuan (2018) Wheat grain Avenin-like protein dynamics in relation to genotypes and environments. PhD thesis, Murdoch University, 2018. https://researchrepository.murdoch.edu.au/id/eprint/43015/.
Повний текст джерелаDay, A. D., and M. R. Elmigri. "Barley Genotypes Grown with Well Irrigation Water on the Safford Agricultural Center." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200513.
Повний текст джерелаRugg, Mory. "Evaluation of Hard Red and White Spring Wheat Genotypes for Tolerance to Pre-Harvest Sprouting." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26482.
Повний текст джерелаThompson, Andrew. "The comparative performance of wheat cultivars and genotypes in different organic systems of production." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294863.
Повний текст джерелаMahar, Abdul Razak. "The comparison of techniques for the development of improved salt-tolerant wheat genotypes." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266827.
Повний текст джерелаTunio, Shamsuddin. "Effect on environment and plant growth regulators on the growth of different wheat genotypes." Thesis, Bangor University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293125.
Повний текст джерелаTjin-Wong-Joe, Andro F. J. "Early grain filling environment and pre-maturity α-amylase formation in UK winter wheat genotypes." Thesis, Open University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403839.
Повний текст джерелаMalligan, Cassandra D. "Crown rot (fusarium pseudograminearum) symptom development and pathogen spread in wheat genotypes with varying disease resistance." University of Southern Queensland, Faculty of Sciences, 2009. http://eprints.usq.edu.au/archive/00006225/.
Повний текст джерелаSamaan, Jihad. "Characterisation of grain quality of Syrian durum wheat genotypes affecting milling performance and end-use quality." Thesis, University of Plymouth, 2007. http://hdl.handle.net/10026.1/2450.
Повний текст джерелаChappell, Matthew. "Assessment and Reaction of Triticum aestivum Genotypes to Fusarium graminearum and effects on Traits Related to Grain Yield and Seed Quality." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/30784.
Повний текст джерелаMaster of Science
Duarte-Delgado, Diana [Verfasser]. "Insights into the salt stress adaptation mechanisms of bread wheat genotypes using a systemic approach / Diana Duarte-Delgado." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/122166932X/34.
Повний текст джерелаRivera-Amado, Alma Carolina. "Identifying physiological traits to optimize assimilate partitioning and spike fertility for yield potential in wheat (Triticum aestivum L.) genotypes." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/32376/.
Повний текст джерелаBakhshandeh, Shiva. "Effect of Climate Change and Soil Management on Water and Nutrient Uptake for Sustainable Yield of Wheat Genotypes with Different Root Traits." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18649.
Повний текст джерелаTrujillo, Negrellos Eliseo. "Identify physiological traits to increase yield potential through enhanced biomass, spike fertility and optimized source-sink balance in wheat (Triticum aestivum L.) genotypes." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/31200/.
Повний текст джерелаSalomon, Marcus Vinicius. "Trigo: avaliação de linhagens diaplóides obtidas via cultura de anteras." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-12082002-140835/.
Повний текст джерелаThirty six dihaploid wheat lines, originated via anther culture from F1 hybrid plants were evaluated in two trials with eighteen lines plus two control cultivars (IAC-24 and IAC-289), in 1999 and 2000. Each trial was carried out in two locations of the State of São Paulo: trial I - Capão Bonito Agronomy Experiment Station (acid soil without lime application and upland condition) and Tatuí Agronomy Experiment Station (acid soil with lime application and sprinkler irrigation condition) and trial II - Monte Alegre do Sul and Tatuí Agronomy Experiment Station (both with acid soil with lime application and sprinkler irrigation condition). In each the genotypes were evaluated for lodging, plant height, cycle from emergence to flowering and from emergence to maturation, grain yield, resistance to disease, head length and yield components. All genotypes were also evaluated for aluminum toxicity tolerance, in nutrient solution, under laboratory condition. Considering trail I, the lines 4 (2.309 kg ha -1 ) and 5 (2.319 kg ha -1 ) originated from the cross PF70402/ALD'S'//PAT72160/ALD'S'/3/PEW'S'/4/OPATA/5/IAC-60, 9 (2.150 kg ha -1 ) from the cross MLR'S'/BUC'S'//BUC'S'/3/IAC-24, and the lines 11 (2.102 kg ha -1 ) e 12 (2.056 kg ha -1 ) from the cross TEPOCA/IAC-24, presented high grain yield. The line 13 (JUN/GEN//IAC-24) showed the shortest plants (53 cm). The lines 2, 4 and 18 originated from crosses JUN/GEN//IAC-24,PF70402/ALD'S'//PAT72160/ALD'S'/3/PEW'S'/4/OPATA/5/IAC-60 and TEPOCA/IAC-24, showed at the same time moderate resistance to the causal agents of leaf rust and leaf spot. All genotypes, with exception of the cultivar IAC-289 and the line 13 (JUN/GEN//IAC-24) , were considered tolerant to 10 mg L -1 Al 3+ , when evaluated in nutrient solutions. Considering trial II, the line 8 (ANA/IAC-24) and the cultivar IAC-289 presented high grain yield (3.311 e 3.341 kg ha -1 respectively). The line 3 (ANA/IAC-24//IAC-24) exhibited at the same time resistance to the causal agent of leaf rust, moderate resistance to the causal agent of leaf spot and immunity to the causal agent of powdery mildew. The lines 8 (ANA/IAC-24) and 14 (PF70402/ALDS//PAT72160/ALDS/3/PEWS/4/OPATA/5/IAC-60), also showed high tolerance to aluminum toxicity being associated to high grain yield, and so could be used in breeding programs with the objective to get cultivars for acid soils.
Sala, Valeria Marino Rodrigues. "Resposta da cultura do trigo aos novos endófitos, Achromobacter e Zoogloea, em condições de campo." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/11/11138/tde-10042007-161807/.
Повний текст джерелаThis study reports for the first time the endophytic nature of Achromobacter and Zoogloea in wheat plants, that were identified by 16S rDNA gene sequence analyses. To find out the localization of the bacterial cells (IAC-AT-8- Azospirillum brasiliense, IACHT- 11- Achromobacter insolitus, IAC-HT-12- Zoogloea ramigera) in/on wheat plants, an experiment was set up under axenic conditions. Fifteen days after inoculation, the plants were observed under electron microscope. All the strains could be visualized on the external part of the root and in the inner part at the elongation zone, in the cortex cells. Two field experiments were carried out in year of 2002, with the aim of evaluating the benefits from inoculation of these strains in wheat plants, with two wheat genotypes (ITD-19 and IAC-370) and three levels of nitrogen fertilizer. The plants were evaluated at four leaves and at tillering stage. Inoculated plants presented increases in dry matter, N accumulation and grain yield, especially in combination with N fertilizer, generating financial profits for the farmer. The responses to inoculation varied according to the location. A field experiment was carried out, in year of 2003, with the same experimental set up used at the previous year. However, the plants were evaluated at tillering stage and at maturity stage. Grain yield and the main yield components were evaluated at harvest. Independent of the cultivar or the nitrogen dose, plants inoculated with the strain IAC-AT-8 presented increases in grain N accumulation and, at the highest nitrogen dose, the strain IAC-HT-11 increased grain yield. The plants? benefits due to the inoculation of endophytic diazotrophic bacteria may also result from their indole synthesis, a field experiment was carried out to find out which had been the main mechanisms for improvement of plant growth and yield, in 2005. The employed strains produced variable amounts of indoles, however, the inoculation brought benefits to wheat plants, mainly in the presence of added N, demonstrated that others mecanisms could be acting for the positive responses to inoculation. In this way, a greenhouse experiment was carried out with the aim of evaluating the influence of inoculation on nitrogen metabolism in wheat plants, and the colonization in unsterilized substratum. The strains were selectively market with antibiotic resistence to. Forty days after inoculation, all three strains had been established in the interior of the roots, however, they could not be detected in the soil. The strain IAC-HT-11 influenced the N metabolism of the plants, increased the nitrate reductase and glutamine synthetase activities, and the chlorophyll content, causing higher efficiency in N utilization. In spite of the great variability of the inoculation response, IAC-HT-11, Achromobacter insolitus, generated the greatest yield increase when combined with nitrogen fertilizer. Inoculation of diazotrophic bacteria is an inexpensive technique, that is economically sound, promoting the increase in grain yield and generating financial profits for the farmer.
Saville, Robert Jack. "Understanding DELLA in wheat : linking genotype to phenotype." Thesis, University of East Anglia, 2011. https://ueaeprints.uea.ac.uk/32675/.
Повний текст джерелаRoozeboom, Kraig Lyle. "Testing wheat in Kansas : genotype, environment, and interaction effects /." Search for this dissertation online, 2006. http://wwwlib.umi.com/cr/ksu/main.
Повний текст джерелаMattioni, Bruna. "Effect of wheat processing and genotype on the gluten proteins." reponame:Repositório Institucional da UFSC, 2017. https://repositorio.ufsc.br/xmlui/handle/123456789/177880.
Повний текст джерелаMade available in DSpace on 2017-08-01T04:15:06Z (GMT). No. of bitstreams: 1 348596.pdf: 2480210 bytes, checksum: 254174b55dd985fe8496c68ad4b4058e (MD5) Previous issue date: 2017
Abstract : Wheat is worldwide utilized as a food grain since the late Stone Age and cultivated since 5000 b.c.. From wheat flour a diversity of baked products can be made because the unique ability of form a viscoelastic dough, characteristic controlled mainly by gluten proteins. Gluten proteins are among the most complex protein networks in nature due to numerous different components and distinct size, and due to variability caused by genotype, growing conditions and technological processes. On the other hand, Celiac disease (CD), the most common wheat intolerance worldwide, is a complex immune-mediated disease trigged by gluten ingestion. Assume a strictly gluten-free diet represents the only effective medical treatment for CD patients. On the other hand, treatments that involve time, temperature and pressure can change protein structure. The heat treatments can affect technological properties and reduce the allergenicity to varying extents in wheat flours and breads. Also, nowadays, there is growing interest in ancient wheats, such as einkorn, emmer, Khorasan (Kamut), faro, and spelt because might these varieties could be nontoxic to celiac and helthier than modern wheat. The aim of this project was to study the effect of wheat treatment and the different varieties of wheat on the gluten proteins and the implications in the immune response in vitro. This work was divided in 3 parts. I ? Brazilian commercial wheat flour was subjected to to spray drying, oven heating, ultrasound and microwave radiation. Solubility, monomeric and polymeric proteins and glutenin and gliadin profile were analyzed. Also, digestibility and the amount of potential celiac disease immune stimulatory epitopes were measured with the R5 monoclonal antibody and G12 ELISA assays. Heat treatment leads to unfolding of peptide chains, changes in hydrophobicity and susceptibility to the action of proteolytic enzymes. The treatments affected solubility, and with exception of ultrasound, all treatment showed low solubility of polymercis and monomerics proteins. Also, treatments affected glutenins and gliadins profile, the amount of the HMW-GS (High Molecular Weigh ? glutenin) decrease after spray-dry, oven and extrusion and the amount of the LMW-GS (Low Molecular Weigh ? glutenin) decrease too after spray-drying, microwave, oven and extrusion. Wheareas for gliadin, the amount of ?-gliadin increase after spra-drying and ultrasound treatments, and the amount of a/ß- gliadin decrease after all treatments, while the treatment to do not affected ?-gliadins amount. Also, digestibility decrease after spray-dryier and ultrasound. This changes with decrease of solubility and changes in profile of proteins is results of rearrange of proteins during the treatments, resulting in a higher complex structure. And, finally, the potential celiac disease immune stimulatory epitopes were measured, and showed lower amount after spray-drying treatment by R5 monoclonal antibody and lower amounts after spray-drying and microwave treatment by G12 ELISA test in relation to control flour. At last, even with the alteration on the gluten structure and complexicity, these changes do not allow to produce a safe product to celiacs, the amount of the potential celiac disease immune stimulatory epitopes still were too high. II ? Modern and ancients? wheat varieties are being tested against anti-Gliadin antibody. If aim to found a wheat nontoxic to celiacs, we tested pools of different wheats varieties, two of them with AA genome - T. monococcum ssp monococcum and T. urartu. Due agronomical caracteristic and comercial appeal, we used five T. turgidum wheat variety as follow: T. turgidum ssp durum (AABB), T. turgidum ssp polonicum (AABB), T. turgidum ssp turgidum (AABB) and T. turgidum ssp turanicum (AABB). All wheat flours were extracted, purified, separated using 2D gel eletrophoresis, stained with Comassie blue or were run a western blot with Gliadin antibody and Skeritt antibodies, and pictures of them were overlapping. All wheat varieties tested contained gluten proteins recognized by anti-gluten Skerritt and Gliadin antibodies related to T-cell stimulatory epitopes, at distinct levels. Einkorn and durum species tested here differ in toxicity depending on the sub-species. Eikorn tested showed higher immunogenicity that durum varaities. So, it is not safe for all celiacs to consume the wheat varieties tested, that include ancients? varieties. III - Additionally, this study verified if food products commercialized in Brazil were correctly labeled in relation to the presence or absence of gluten by using the ELISA R5 method. In relation to products sold in Brazil, the results show for the celiac population that companies are testing their food products to verify if labeling is correct to provide products that are safe and to accurately identify potential gluten levels. However, if 89% of gluten-free food products are correctly labeled, this means that 11% represent a risk for the health of the celiac population. To improve this amount, routine auditing is necessary to verify the correct labeling about gluten in food products and adopt good manufacturing practices. Brazil is becoming a global economic player, so it is important to be aligned with global legislation concerning gluten presence and ensure that the label can be trusted. This results in greater confidence in both the global market and consumers and represents one more step toward health maintenance for celiacs.
Introdução: O glúten é uma proteína encontrada nos grãos de trigo, centeio e cevada. Neste trabalho, considerar-se-á o trigo como a fonte de glúten, pelo fato desta matéria prima ser amplamente utilizada tecnologicamente no mundo, em pães, biscoitos, bolos e massas. Se, por um lado o consumo de pães é tido não somente como uma questão cultural, mas também religiosa através do mundo e do tempo, por outro lado, atualmente há discussões sobre o consumo de glúten. A adoção e indicação de dietas sem glúten, mesmo para quem não apresenta sintomas clínicos e fisiológicos de uma intolerância alimentar levou a Sociedade Brasileira de Alimentação e Nutrição a publicar um artigo sobre o posicionamento da mesma, esclarescendo que dietas sem glúten devem ser recomendadas apenas para indivíduos com alguma desordens relacionada ao glúten. Por outro lado, com esse debate, os casos de indivíduos que apresentam alguma disfunção ao ingerirem glúten, são mais facilmente identificados. Atualmente, o unico tratamento é a adoção de uma dieta sem gluten. Ainda hoje, o diagnóstico pode demorar, pois os sintomas podem ser diferentes de indivíduo para indivíduo, além disso, os sintomas se sobrepoem aos de outras doenças, o que leva médicos a investigarem outras doenças. Para facilitar o entendimento, diagnóstico e classificação, as desordens relacionadas ao glúten foram recentemente classificadas de acordo com a resposta em: autoimune, alérgica e de sensibilidade. Sendo que o presente trabalho é focado nas respostas autoumines provocadas pela ingestão de glúten, que são a doença celíaca, ataxia provocada pelo glúten e dermatite herpetiforme. A indentificação destas se dá por teste clínicos (sintomas), histológicos (danos no intestino), sorológicos (presença no soro dos anticorpos anti-gliadina, anti-endeomisio e anti- transglutaminase) e genéticos (presença dos genes DQ 2/8). Acredita-se que no Brasil dois milhões de indivíduos são celíacos ou possuem alguma desordem relacionada ao gluten. Como o único tratamento é a exclusão do glúten da dieta, acaba movimentado um mercado de produtos alimentícios sem glúten. No Brasil, o número de empresas de alimentos que comercilizam produtos sem glúten e o volume de vendas tem aumentando exponencialmente. Nos Estados Unidos, o mercado de produtos sem glúten movimentou 8,8 bilhões de dólares até 2014. Devido à importância econômica do trigo em nível nacional e mundial, fazem-se necessários mais estudos, não apenas em relação à doença celíaca, mas também em relação ao glúten de trigo e suas variedades, e como o tratamento térmico deste cereal, pode afetar ou influenciar na resposta imune de indivíduos com pré disposição genética. Além disso, surgem especulações sobre o consumo de trigo de diferentes variedades, as quais poderiam ser não ser tóxicas, umas vez que não passaram por tantos processos de hibridização e manipulação gênica como o trigo hexaplóide moderno. Objetivos: O principal objetivo deste trabalho foi estudar o efeito do tratamento térmico do trigo e as diferentes variedades de trigo sobre as proteínas do glúten e quais as implicações na resposta imune in vitro. Neste contexto, os seguintes objetivos específicos foram estabelecidos: Submeter farinha brasileira comercial aos tratamentos de extrusão, spray-dry, ultrassom, microondas e forneamento. Analisar as alterações em relação as características tecnológicas das proteínas que formam o glúten na farinha do trigo antes e após os tratamentos quanto à: solubilidade, proporção entre proteínas monoméricas e poliméricas, perfil de gliadinas e gluteninas. Analisar se houve aumento ou diminuição da digetibilidade, e se os tratamentos térmicos afetam a quantidade de epitopos estimuladores de células T em celíacos pelo teste de ELISA R5 e G12. Obter e analisar diferentes variedades de trigo sendo elas: Triticum monococcum ssp monococcum, Triticum urartu, Triticum turgidum ssp durum, Triticum turgidum ssp polonicum, Triticum turgidum ssp turgidum, Triticum turgidum ssp turanicum, Triticum aestivium ssp spelta. Analisar se houve diferença entre as variedades na quantidade de epitopos estimuladores de células T em celíacos in vitro, usando western blott e anticorpos comerciais específicos. Verificar se os produtos ?sem glúten? comercializados no Brasil estão corretamente rotulados.
Al-Fadly, Molook. "Genotype and environmental influences on grain quality characteristics of Australian wheat varieties." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/11817.
Повний текст джерелаGiles, Tom. "Gene regulatory networks for wheat genotype-dependent effects of cold temperatures." Thesis, University of Nottingham, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.576493.
Повний текст джерелаRattin, Gabriela Eyng. "Effect of genotype and environment on hard wheat water absorption tolerance." Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/8538.
Повний текст джерелаDepartment of Grain Science and Industry
Jon M. Faubion
Rebecca Miller
Water absorption tolerance is an important parameter in commercial bread production. Hard winter wheat (HWW) flours have shown different water absorption tolerance behaviors in routine wheat quality analysis. Flours with high water absorption tolerance allow broader variation in water addition without affecting optimum dough conditions. Although studies have demonstrated that genotype and environmental factors affect optimum water absorption, mixing time and dough strength, there is no research defining or quantifying water absorption tolerance behavior or explaining reasons and factors affecting such behavior and its correlation with end product quality. Using the mixograph®, this study identified high and low absorption tolerance behaviors in five HRW varieties (Jagger, Jagalene, Fuller, 2137 and Overley) grown in six locations (Finney, Labette, Republic, Thomas, Riley and Sumner Counties) in Kansas, during crop year 2009. Milling, wheat and flour quality tests, Solvent Retention Capacity (SRC), damaged starch, protein composition and identification, flour and starch particle size distribution and bread baking tests were conducted and analyzed. Jagger grown at Finney County possessed the largest water absorption tolerance range while the smallest range was observed for Fuller grown at Riley and Sumner Counties. A positive high correlation was observed between water absorption tolerance and the following parameters: protein content, kernel hardness, extractable polymeric proteins, unextractable polymeric proteins, gliadins and flour particle size (41-300 μm). SDS PAGE and proteomic analyses determined that γ-gliadins were present in a significantly higher concentration in the high tolerance sample suggesting that these proteins play a primary role in water absorption tolerance behavior. The five wheat varieties grown at locations with high and low water absorption tolerance were blended together by location and test baked at three different absorption levels. Loaf volume varied between flours but did not vary between different water levels. It is unclear if this was an effect of the differing protein contents of the blends, water tolerance or both. However, a negative effect on crumb grain characteristics was observed when lower water levels were used.
Agostinelli, Andres Mateo. "PHENOTYPIC AND GENOTYPIC SELECTION FOR HEAD SCAB RESISTANCE IN WHEAT." UKnowledge, 2009. http://uknowledge.uky.edu/gradschool_theses/582.
Повний текст джерелаThistlethwaite, Rebecca Janette. "Identification of genetic variation in heat stress, genotype screening for and mechanisms of tolerance in wheat." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17339.
Повний текст джерелаLisiecki, Karol. "Reakcja genotypów pszenicy (Triticum aestivum L.) na patogeny z rodzaju Rhizoctonia." Rozprawa doktorska, Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy, 2021. http://dlibra.utp.edu.pl/Content/3620.
Повний текст джерелаGonzales, Diaz Andie Alexander Sr. "The wheat seed phytomicrobiome as a potential source of resistance to the fungal disease, Fusarium head blight." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/98399.
Повний текст джерелаMaster of Science in Life Sciences
Plant associated microbes are important contributors to plant health. They are known to play roles in increasing yield via improved stress tolerance, promoting growth, and suppressing plant disease. We investigated the wheat grain-head microbial communities as a source of disease resistance. The disease is called Fusarium Head Blight (FHB) and is caused by Fusarium graminaerum. FHB is a devastating disease in wheat and other cereals, causing losses, through reduced yield and quality through the production of toxins that prohibit use of the grain. To combat FHB, research has focused on developing plants that have resistance and the application of chemical fungicides. However, new resources for combating FHB may lie in the interactions between plants and microbes. This research is focused on identifying microbes that naturally interact with the plant, and how the pathogen, Fusarium, interacts with these beneficial microbes. In field trials, we characterized the microbial community by DNA sequencing technologies across locations, wheat with varying levels of genetic resistance, and wheat developmental stages. First, between the wheat kernel samples of pre-flowering and maturity, we found significant differences in microbial community. Consistent with other studies we found that the largest changes in microbial community composition across different growing locations. Finally, we found an interaction between the grain head microbiome and host resistance state when plants were exposed to the pathogen. Overall, we find that the wheat grain head microbiome is shaped by growing location and through interactions with the plant host and pathogen.
Day, A. D., and M. J. Ottman. "Growth Cycle, Fertilizer, Planting Rate, and Genotype Influence Barley Hay or Forage Growth in the Southwest." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200506.
Повний текст джерелаMavrodi, Olga. "Phenotypic, genotypic and colonization properties of 2,4-diacetylphloroglucinol-producing Pseudomonas spp. isolated from roots of wheat." Online access for everyone, 2004. http://www.dissertations.wsu.edu/Dissertations/Fall2004/O%5FMavrodi%5F121004.pdf.
Повний текст джерелаTomasz, Teresa. "Vliv teploty a sucha na obsah proteinů gliadinové a gluteninové frakce u čtyř odrůd pšenice." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2017. http://www.nusl.cz/ntk/nusl-295720.
Повний текст джерелаHaji, Hussein Mao. "Causes of genotype by environment interaction in winter and spring wheat grown in Ontario." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ27454.pdf.
Повний текст джерелаCosser, Nicola. "Genotype and systems interactions on grain yield and quality for organic wheat (Triticum aestivum) production." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320192.
Повний текст джерелаChairi, Fadia. "Increasing genotypic productivity in post Green Revolution durum wheat: the case of Spain." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/671914.
Повний текст джерелаEl trigo duro, que es el cultivo más estratégico en la agricultura del sur del Mediterráneo, se ha beneficiado como otros cereales de la Revolución Verde, el progreso genético en las últimas décadas ha sido menos evidente, en parte enmascarado por el cambio climático, y los mecanismos fisiológicos subyacentes no son evidentes. Se ha observado que la tasa de progreso genético en el rendimiento del trigo duro en España después de la Revolución Verde ha sido baja, se estimó en 24 kg ha-1 año-1 entre 1980 y 2003 e incluso se detuvo durante la última década hasta 2010. Se debió principalmente al aumento en el número de granos por espiga, y espigas por unidad de área, aunque no hay una tendencia clara en algunos rasgos de calidad de grano (TKW y concentración de N de grano). Además, la biomasa área en la cosecha y el rendimiento de nitrógeno en grano aumentó con el año de liberación de los cultivares durante todo el período. Además, se ha observado que los genotipos más productivos se caracterizaron por una altura de planta de alrededor de 85 cm, pequeñas hojas de bandera erectas, estomas más abiertos, un mejor equilibrio entre las fuentes de N y los sumideros de N y una mayor capacidad para re-fijar CO2 Respirado por el grano. Además, en general, las partes no laminares de las plantas juegan un papel clave en el suministro de asimilados durante el llenado del grano. Por otro lado, se ha informado una mejora en el rendimiento genético en ambientes cálidos y en condiciones óptimas de agua, ambientes similares a los de donde se origina el germoplasma. La adaptación del durum semi-enano en España ha mostrado una tendencia a la adaptación específica en lugar de la adaptación a gran escala. Se han informado dos patrones diferentes de selección debido a la interacción G × E: en los entornos de alto rendimiento, la planta favorece una mayor absorción de agua, con más transpiración y más estomas abiertos, mientras que, en entornos de bajo rendimiento, planta estomas cercanos y favorece una mayor eficiencia en el uso del agua
Engle, Jessica S. "Pathogenic characterization, distribution in Ohio and wheat genotype reactions to Stagonospora nodorum and Pyrenophora tritici-repentis." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1117382547.
Повний текст джерелаTitle from first page of PDF file. Document formatted into pages; contains xxi, 195 p.; also includes graphics. Includes bibliographical references (p. 184-195). Available online via OhioLINK's ETD Center
Schidlowski, Lucas Leonardo. "Produtividade e qualidade industrial de trigo em diferentes anos e regiões de cultivo." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/873.
Повний текст джерелаThe productivity and technological quality of wheat is influenced by genetic, environmental and management factors. The environmental contribution in the definition of component traits of yield and quality attributes of flour requires extensive evaluation of genotypes in multiple locations for years. The objective of this study was to evaluate the effect of years (2007-2011) and growing regions (Abelardo Luz- SC , Cascavel - PR, Castro - PR, Guarapuava - PR , Não-Me-Toque - RS and Palotina - PR) on the quality industrial and grain yield in sets of trials of wheat ( Triticum aestivum L.), with a view to recommending cultivars and identification of regions that maximize the quality of baking. Analyses of joint variance and calculated statistical comparison of means , association between character and adaptability and stability of genotypes to different growing regions, using graphical GGE Biplot analysis and AMMI analysis were performed. The results indicate that all traits were influenced by genotype (G), environment (E) interaction GxE. The determinants of quality characters of wheat bread have their phenotypic variation mainly controlled by genetic effects. The CD 150, CD 108 and IPR 85 cultivars showed excellent behavior in relation to baking quality. The test environment Não-Me-Toque is ideal for selection of genotypes with a focus on yield and hectoliter mass. Ideal environments for the selection of genotypes with a focus on quality of bread making, in order, Abelardo Luz, Cascavel and Guarapuava.
Filippini, Nicola. "Brain structure, function and connectivity associated with APOE genotype : what changes when?" Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525306.
Повний текст джерелаDi, Loreto Alessandro <1985>. "Nutraceutical Value of Durum Wheat: Influence of Environment and Genotype in a Large Scale Experimental Trial." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7531/.
Повний текст джерелаPaiva, Ana Giselda Simões. "Genotypic and environmental effects on the concentration of healthy compounds of four durum wheat varieties." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15497.
Повний текст джерелаWheat is one of the most important grain in human diet and it is the most grown cereal crop wordwide. Nowadays since global climatic changes have become more important to food production, we asked whether climatic conditions and genotype would influence the production of healthy compounds on old and new varieties of durum wheat. Resistant starch and phenolic acids were quantified by HPLC techniques to evaluate the environmental and genotypic effects and to characterize four durum wheat species grown in South Italy. Environment had a strong impact on the production of resistant starch and phenolic acids, while genotype had the greastest effect on the same compounds. The production of phenolic acids tended to increase by the effect of winter sowing season and the year 2014 during the grain filling period. Ferulic and sinapic acid were the most abundant in the four varieties. The two new Ethiopian lines were more efficient on the production of phenolic acids and resistant starch, while the old genotype Trinakria and its genetic modified pair showed to be slightly less productive. Wheat based products higher in phenolic acids and resistant starch might lead to a diet richer in bioactive substances that promote health.
O trigo é um dos cereais mais importantes na alimentação humana e um dos mais produzidos a nível mundial. No momento em que as alterações climáticas parecem ser cada vez mais importantes na produção de alimentos, foi questionado se as condições climáticas e o genótipo poderiam influenciar a produção de compostos benéficos para a saúde em variedades antigas e novas de trigo duro. O amido resistente e os ácidos fenólicos foram quantificados através de técnicas cromatográficas para avaliar os efeitos ambientais e genotípicos e para caracterizar quatro variedades de trigo duro cultivadas no sul de Itália. O ambiente influenciou a produção de amido resistente e de ácidos fenólicos, enquanto que o genótipo teve o maior impacto nestes. A produção de ácidos fenólicos tendeu a aumentar pelo efeito da estação invernal e do ano 2014 no período de enchimento dos grãos. Os ácidos ferúlico e sinápico foram os mais abundantes nestas variedades. As duas linhas genotípicas Etiopia novas foram as mais eficientes na produção de ácidos fenólicos e amido resistente, enquanto que o genótipo antigo Trinakria e o seu par geneticamente modificado mostraram ser ligeiramente menos produtivos. Pensa-se que os produtos alimentares à base de trigo com um conteúdo de amido resistente e ácidos fenólicos elevado conduzem a uma dieta mais rica em substâncias bioactivas que promovem a saúde humana.
Russell, Kathleen. "GENOTYPE × ENVIRONMENT × MANAGEMENT: IMPLICATIONS FOR SELECTION TO HEAT STRESS TOLERANCE AND NITROGEN USE EFFICIENCY IN SOFT RED WINTER WHEAT." UKnowledge, 2017. http://uknowledge.uky.edu/pss_etds/91.
Повний текст джерелаBec, Sladana. "ROLE OF THE SEXUAL CYCLE IN DEVELOPMENT OF GENOTYPIC AND PHENOTYPIC DIVERSITY IN Gibberella zeae." UKnowledge, 2011. http://uknowledge.uky.edu/plantpath_etds/2.
Повний текст джерелаWeber, Tessmann Elisane. "IMPACT OF A WARMED ENVIRONMENT, SPIKE MORPHOLOGY AND GENOTYPE ON FHB LEVELS IN A SOFT RED WINTER WHEAT MAPPING POPULATION." UKnowledge, 2019. https://uknowledge.uky.edu/pss_etds/116.
Повний текст джерелаVázquez, Daniel. "Effects of genotype and environment on polyphenol oxidase activity and related properties of red and white wheats." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0021/MQ56149.pdf.
Повний текст джерела