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Articoli di riviste sul tema "Wheat Effect of temperature on"

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Marcela, Hlaváčová, Klem Karel, Smutná Pavlína, Škarpa Petr, Hlavinka Petr, Novotná Kateřina, Rapantová Barbora e Trnka Miroslav. "Effect of heat stress at anthesis on yield formation in winter wheat". Plant, Soil and Environment 63, No. 3 (4 aprile 2017): 139–44. http://dx.doi.org/10.17221/73/2017-pse.

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Heat stress around anthesis is considered to have an increasing impact on wheat yield under the ongoing climate change. However, the effect of high temperatures and their duration on formation of individual yield parameters is still little understood. Within this study, the effect of high temperatures applied during anthesis for 3 and 7 days on yield formation parameters was analysed. The study was conducted in growth chambers under four temperature regimes (daily temperature maxima 26, 32, 35 and 38°C). In the periods preceding and following heat stress regimes the plants were cultivated under ambient weather conditions. The number of grains per spike was reduced under temperatures ≥ 35°C in cv. Bohemia and ≥ 38°C in cv. Tobak. This resulted in a similar response of spike productivity. Thousand grain weight showed no response to temperature regime in cv. Tobak, whereas in cv. Bohemia, a peak response to temperature with maximum at 35°C was observed. The duration of heat stress had only little effect on most yield formation parameters.
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Wosula, E. N., S. Tatineni, S. N. Wegulo e G. L. Hein. "Effect of Temperature on Wheat Streak Mosaic Disease Development in Winter Wheat". Plant Disease 101, n. 2 (febbraio 2017): 324–30. http://dx.doi.org/10.1094/pdis-07-16-1053-re.

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Temperature is one of the key factors that influence viral disease development in plants. In this study, temperature effect on Wheat streak mosaic virus (WSMV) replication and in planta movement was determined using a green fluorescent protein (GFP)-tagged virus in two winter wheat cultivars. Virus-inoculated plants were first incubated at 10, 15, 20, and 25°C for 21 days, followed by 27°C for 14 days; and, in a second experiment, virus-inoculated plants were initially incubated at 27°C for 3 days, followed by 10, 15, 20, and 25°C for 21 days. In the first experiment, WSMV-GFP in susceptible ‘Tomahawk’ wheat at 10°C was restricted at the point of inoculation whereas, at 15°C, the virus moved systemically, accompanied with mild symptoms, and, at 20 and 25°C, WSMV elicited severe WSMV symptoms. In resistant ‘Mace’ wheat (PI 651043), WSMV-GFP was restricted at the point of inoculation at 10 and 15°C but, at 20 and 25°C, the virus infected systemically with no visual symptoms. Some plants that were not systemically infected at low temperatures expressed WSMV-GFP in regrowth shoots when later held at 27°C. In the second experiment, Tomahawk plants (100%) expressed systemic WSMV-GFP after 21 days at all four temperature levels; however, systemic WSMV expression in Mace was delayed at the lower temperatures. These results indicate that temperature played an important role in WSMV replication, movement, and symptom development in resistant and susceptible wheat cultivars. This study also demonstrates that suboptimal temperatures impair WSMV movement but the virus rapidly begins to replicate and spread in planta under optimal temperatures.
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Balla, K., e O. Veisz. "Temperature dependence of wheat development". Acta Agronomica Hungarica 56, n. 3 (1 settembre 2008): 313–20. http://dx.doi.org/10.1556/aagr.56.2008.3.7.

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Among the abiotic stress factors influencing the growth and productivity of wheat varieties, extremely high temperatures have the most limiting effect. In an experiment set up in the gradient chamber of the Martonvásár phytotron to test the effect of various temperatures on four winter wheat varieties and one variety of spelt, substantial differences were observed in the heat stress tolerance of the varieties. There was a considerable reduction in the number of shoots and spikes as the result of heat stress, leading to a drastic loss of grain yield. It was clear from changes in the biomass and in the grain:straw ratio that extremely high temperatures led to a substantial reduction in the ratio of grain to straw in the varieties tested. In response to high temperature the wheat plants turned yellow earlier due to the rapid decomposition of the chlorophyll content. This resulted in a considerable shortening of the vegetation period and early ripening. Reductions in the parameters tested were observed at different temperature levels for each variety, indicating considerable differences in the ability of the varieties to adapt to abiotic stress factors.
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Tack, Jesse, Andrew Barkley e Lawton Lanier Nalley. "Effect of warming temperatures on US wheat yields". Proceedings of the National Academy of Sciences 112, n. 22 (11 maggio 2015): 6931–36. http://dx.doi.org/10.1073/pnas.1415181112.

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Climate change is expected to increase future temperatures, potentially resulting in reduced crop production in many key production regions. Research quantifying the complex relationship between weather variables and wheat yields is rapidly growing, and recent advances have used a variety of model specifications that differ in how temperature data are included in the statistical yield equation. A unique data set that combines Kansas wheat variety field trial outcomes for 1985–2013 with location-specific weather data is used to analyze the effect of weather on wheat yield using regression analysis. Our results indicate that the effect of temperature exposure varies across the September−May growing season. The largest drivers of yield loss are freezing temperatures in the Fall and extreme heat events in the Spring. We also find that the overall effect of warming on yields is negative, even after accounting for the benefits of reduced exposure to freezing temperatures. Our analysis indicates that there exists a tradeoff between average (mean) yield and ability to resist extreme heat across varieties. More-recently released varieties are less able to resist heat than older lines. Our results also indicate that warming effects would be partially offset by increased rainfall in the Spring. Finally, we find that the method used to construct measures of temperature exposure matters for both the predictive performance of the regression model and the forecasted warming impacts on yields.
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Šeruga, B., S. Budžaki, Ž. Ugarčić-Hardi e M. Šeruga. "Effect of temperature and composition on thermal conductivity of “Mlinci” dough". Czech Journal of Food Sciences 23, No. 4 (15 novembre 2011): 152–58. http://dx.doi.org/10.17221/3385-cjfs.

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The objective of this study was to determine the thermal conductivity of “Mlinci” dough T-500 and “Mlinci” dough T-500 with the addition of eggs, wheat germs and wheat bran in the temperature range of 40°C to 70°C. Thermal conductivity was determined using modifications of guarded hot plate steady state method. For all types of dough, thermal conductivity first increased with temperature and then, after reaching maximum values, it decreased. The maximum values for “Mlinci” dough T-500 containing wheat germs and bran were 54°C, and for “Mlinci” dough T-500 with eggs were 58°C. The minimal value of 0.347 ± 0.020 W/mK was determined for “Mlinci” dough T-500 at 39.38°C. The maximum value 0.585 ± 0.023 W/mK was determined for “Mlinci” dough T-500 with wheat bran at 54.39°C. The thermal conductivity of “Mlinci” dough T-500 with the addition of wheat germs and wheat bran was higher in comparison with the basic composition due to the elevated amounts of ash, water, proteins, and porosity, as well as non-homogeneity. Based on the experimental thermal conductivity values of “Mlinci” dough T-500 samples at various temperatures, quadratic polynomial equations were developed. The research results could be used for the modelling of the heat transfer of “Mlinci” dough T-500 during processing.  
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Ahmad, Tobeh, e Jamaati e. Somarin Shahzad. "Low temperature stress effect on wheat cultivars germination". African Journal of Microbiology Research 6, n. 6 (16 febbraio 2012): 1265–69. http://dx.doi.org/10.5897/ajmr11.1498.

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Sultana, Shamima, Md Asaduzzamana e Hasan Muhammad Zubair. "Effect of Temperature on Wheat-Ryegrass Seedlings Interference". Universal Journal of Agricultural Research 1, n. 2 (agosto 2013): 38–40. http://dx.doi.org/10.13189/ujar.2013.010204.

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Gaudet, D. A., e T. H. H. Chen. "Effect of freezing resistance and low-temperature stress on development of cottony snow mold (Coprinus psychromorbidus) in winter wheat". Canadian Journal of Botany 66, n. 8 (1 agosto 1988): 1610–15. http://dx.doi.org/10.1139/b88-219.

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The relationship between snow mold resistance and freezing resistance was studied under controlled-environment conditions, using winter wheat (Triticum aestivum L. em. Thell) cultivars varying in freezing resistance and resistance to cottony snow mold (Coprinus psychromorbidus Redhead & Traquair). Cultivars varying in freezing resistance were equally susceptible to C. psychromorbidus. There existed a negative relationship between snow mold resistance and freezing resistance. Sublethal, subzero freezing temperatures between −3 and −12 °C predisposed the winter wheat cultivar 'Winalta' to increased damage by C. psychromorbidus. A synergistic effect resulting in increased mortality was observed when winter wheat plants received a combination of low-temperature stress and inoculation with C. psychromorbidus. In hardened winter wheat plants, sublethal levels of snow mold damage following 6 weeks incubation with C. psychromorbidus resulted in a reduction in freezing resistance or LT50 (50% killing temperature) of approximately 7 °C compared with the noninoculated controls. The possible role of low-temperature stress on the susceptibility of winter wheats to C. psychromorbidus and of snow mold infection on the retention of freezing resistance in winter wheats during winter in the central and northern Canadian prairies is discussed.
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Reddy, L. V., R. J. Metzger e T. M. Ching. "Effect of Temperature on Seed Dormancy of Wheat 1". Crop Science 25, n. 3 (maggio 1985): 455–58. http://dx.doi.org/10.2135/cropsci1985.0011183x002500030007x.

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Rosell, Cristina M., e Concha Collar. "Effect of temperature and consistency on wheat dough performance". International Journal of Food Science & Technology 44, n. 3 (marzo 2009): 493–502. http://dx.doi.org/10.1111/j.1365-2621.2008.01758.x.

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Tesi sul tema "Wheat Effect of temperature on"

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Zahedi, Morteza. "Physiological aspects of the responses of grain filling to high temperature in wheat". Title page, abstract and contents only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phz19.pdf.

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"June 2001." Includes bibliographical references (leaves 217-248). The effects of a sustained period of moderately high temperature on physiological and biochemical aspects of grain development were investigated in wheat cultivars grown under controlled environment conditions. The effect of variation in plant nutrition on the responses of cultivars to high temperature was also studied.
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Debbouz, Amar. "Influence of variety and environment on Kansas wheat quality". Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/12919.

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Bryant, Ruth. "Effects of temperature on wheat-pathogen interactions". Thesis, University of East Anglia, 2013. https://ueaeprints.uea.ac.uk/48755/.

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Climate change is affecting UK agriculture, and research is needed to prepare crops for the future. Wheat is the UK’s most important crop, and needs to be protected from losses caused by disease. While direct effect of the environment on pathogen spread is often reported, effect of the environment on host defence is not. Many wheat resistance genes are temperature sensitive and these were used as a starting point to investigate defence temperature sensitivity in wheat starting with yellow rust resistance gene Yr36, previously shown to be temperature-sensitive. The effect of temperature on resistance was shown to be independent of Yr36 in breeding line UC1041, and was more likely to be due to a previously-uncharacterised background temperature sensitivity. These results suggest that temperature changes, rather than thresholds, might influence some disease resistance mechanisms. Understanding this phenomenon could enable the breeding of more stable defence in crops. In order to gain further insight into how temperature changes influence resistance, plants were grown under different thermoperiods and challenged with different types of pathogens; Results showed that resistance to multiple pathogens in one cultivar Claire was enhanced under variable temperatures, compared to constant temperatures. Taken together, the research presented revealed that defence temperature sensitivity in plants is much more complex than previously thought, considering that both temperature changes and different thermoperiods can influence aspects of wheat defence. To ascertain which research approaches will be most valuable in preparing for climate change, the effect of the environment on take-all was also investigated. Vulnerable periods for wheat from the threat of take-all development were identified by analysing historical datasets, and controlled environment experiments. Results showed a relationship between initial post-sowing temperatures and spring take-all levels in 2nd 3rd or 4th winter wheats, depending on the location. The work on yellow rust resistance and take-all both identify vulnerable periods for wheat caused by the environment, be it weakening of host defence responses, or increased threat from disease pressure. Further characterisation and understanding of vulnerable periods will be essential to control disease outbreaks under an increasingly unstable climate.
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Ehtaiwesh, 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.

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Abstract (sommario):
Doctor of Philosophy
Department 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.
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Vincent, Colin. "Effects of temperature on root growth and development of winter wheat". Thesis, University of Reading, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286899.

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Pradhan, Gautam Prasad. "Effects of drought and/or high temperature stress on wild wheat relatives (AEGILOPS species) and synthetic wheats". Diss., Kansas State University, 2011. http://hdl.handle.net/2097/11980.

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Abstract (sommario):
Doctor of Philosophy
Department of Agronomy
P.V. Vara Prasad
High temperature (HT) and drought are detrimental to crop productivity, but there is limited variability for these traits among wheat ([italics]Triticum aestivum[end italics] L.) cultivars. Five [italics]Aegilops[end italics] species were screened to identify HT (52 accessions) and drought (31 accessions) tolerant species/accessions and ascertaining traits associated with tolerance. Four synthetic wheats were studied to quantify independent and combined effects of HT and drought. [italics]Aegilops[end italics] species were grown at 25/19°C day/night and 18 h photoperiod. At anthesis, HT was imposed by transferring plants to growth chambers set at 36/30°C, whereas in another experiment, drought was imposed by withholding irrigation. Synthetic wheats were grown at 21/15°C day/night and 18 h photoperiod. At anthesis or 21 d after anthesis, plants were exposed to optimum condition (irrigation + 21/15°C), HT (irrigation + 36/30°C), drought (withhold irrigation + 21/15°C), and combined stress (withhold irrigation + 36/30°C). Stresses were imposed for 16 d. High temperature and drought stress significantly decreased chlorophyll, grain number, individual grain weight, and grain yield of [italics]Aegilops[end italics] species (≥ 25%). Based on a decrease in grain yield, [italics]A. speltoides[end italics] and [italics]A. geniculata[end italics] were most tolerant (~ 61% decline), and [italics]A. longissima[end italics] was highly susceptible to HT stress (84% decline). Similarly, [italics]A. geniculata[end italics] had greater tolerance to drought (48% decline) as compared to other species (≥ 73% decline). Tolerance was associated with higher grains spike [superscript]-1 and/or heavier grains. Within [italics]A. speltoides[end italics], accession TA 2348 was most tolerant to HT with 13.5% yield decline and a heat susceptibility index (HSI) 0.23. Among [italics]A. geniculata[end italics], TA 2899 and TA 1819 were moderately tolerant to HT with an HSI 0.80. TA 10437 of [italics]A. geniculata[end italics] was the most drought tolerant accession with 7% yield decline and drought susceptibility index 0.14. Irrespective of the time of stress, HT, drought, and combined stress decreased both individual grain weight and grain yield of synthetic wheats by ≥ 37%, 26%, and 50%, respectively. These studies suggest a presence of genetic variability among [italics]Aegilops[end italics] species that can be utilized in breeding wheat for HT and drought tolerance at anthesis; and combined stress of drought and high temperature on synthetic wheats are hypo-additive in nature.
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Shroyer, Kyle J. "The effects of drought and high temperature stress on reproduction, physiology, and yield of spring and winter wheat". Diss., Kansas State University, 2016. http://hdl.handle.net/2097/34542.

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Abstract (sommario):
Doctor of Philosophy
Department of Agronomy
P. V. Vara Prasad
Drought and high temperature are major detriments to global wheat production. Wheat varies in its susceptibility to drought and high temperature stress. Three experiments were performed to address the challenges of drought and high temperature stress in wheat. The first experiment consisted of 256 genotypes of spring wheat and 301 genotypes of winter wheat, field screened for yield traits related to drought tolerance, in irrigated and dryland experiments. The experimental designs for the first experiment were both augmented incomplete block designs with one-way or row-column blocking. This experiment was performed at the Ashland Bottom Research Farm, south of Manhattan, KS, between 2011-2013. From this experiment, three conclusions were made: wheat genotypes vary widely in their responses between dryland and irrigated treatments and this variation can be used in future experiments or breeding tolerant genotypes. The number of seeds per unit of area, total biomass per unit area, and the average weight of one thousand seeds, were the best yield traits for predicting yield in both irrigated and dryland environments. Twenty genotypes were selected for future research based on their susceptibility or tolerance to drought. The second experiment was performed in the greenhouse facilities to observe the source-sink relationship of spring wheat genotype Seri 82 under drought and defoliation. The experiment was a randomized complete block design with a split-plot treatment arrangement. Post-anthesis cessation of watering and defoliation were the treatments. Both water stress and defoliation affected seed yield and total biomass. The major effect of post-anthesis water stress was a decrease in single seed weight. Defoliation affected the source-sink relationship by reducing the source strength of the leaves. This caused the stem to contribute more to overall yield. The defoliation also caused the remaining leaves to compensate for the removed leaves. The final experiment evaluated the changes in seed-filling rate and duration of three winter wheat genotypes during high temperature stress. High temperature stress reduced the duration of seed fill and increased the rate, differently in each genotype. Higher yields in the winter wheat growing regions, susceptible to post-anthesis high temperature stress, may be possible through selection of cultivars with faster seed-filling rates and/or duration of seed filling.
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Alghabari, Fahad. "Effect of Rht alleles on the tolerance of wheat to high temperature and drought stress during booting and anthesis". Thesis, University of Reading, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606370.

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Human induced climate change is predicted to increase mean surface air temperature by 2 to 4 degrees C with significant drying in some regions by the end of this century which will affect wheat production and billions of people who depend on the crop for their livelihood. Factorial pot experiments were conducted to compare the responses of GA-sensitive and GA-insensitive reduced height (Rht) alleles in wheat for susceptibility to heat and drought stress during booting and anthesis. Grain yield, grain set (grains/spikelet) and grain quality of near-isogenic lines (NILs) were assessed following three day transfers to controlled environments imposing day temperatures from 20 to 40 degrees C at the Plant Environmental Laboratory (PEL), University of Reading, UK.
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Ntiamoah, Charles. "Effects of temperature, photoperiod, and vernalization on the growth, development, and predictions by the CERES-wheat model, for spring wheat cultivars". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ62662.pdf.

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Pocock, Tessa H. "The effect of temperature and light on photoinhibition, carbon metabolism and freezing tolerance, a survey of winter and spring wheat cultivars". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0021/MQ58074.pdf.

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Libri sul tema "Wheat Effect of temperature on"

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Singhal, G. S. Photosynthesis and crop productivity under tropical environments: Mechanisms regulating quantum efficiency of light absorption and utilization in chloroplasts in cereal grains with special reference to bread wheat : final technical report. New Delhi: School of Life Sciences, Jawaharlal Nehru University, 1987.

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Subedi, K. D. Effect of low temperature, genotype and planting date on the time of anthesis and sterility in wheat in the hills of Nepal. Pokhara: Lumle Regional Agricultural Research Centre, 1997.

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United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Global change--what you can do: Hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred First Congress, second session on ... April 25, 1990. Washington: U.S. G.P.O., 1991.

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United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Global change--what you can do: Hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred First Congress, second session on ... April 25, 1990. Washington: U.S. G.P.O., 1991.

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United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Global change--what you can do: Hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred First Congress, second session on ... April 25, 1990. Washington: U.S. G.P.O., 1991.

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Harań, Grzegorz. Impurity effect in high temperature superconductors. Wrocław: Oficyna Wydawnicza Politechniki Wrocławskiej, 2001.

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Lansdown, A. R. High temperature lubrication. London: Mechanical Engineering Publications, 1994.

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Savov, Petŭr G. Radiation mutagenesis in wheat. New Delhi: Agricole Pub. Academy, 1989.

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Lufitha, Mundel. Effect of substrate temperature on coating adhesion. Ottawa: National Library of Canada, 2001.

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United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Global change--what you can do: Hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred First Congress, second session on responses to global change--what you can do, April 25, 1990. Washington: U.S. G.P.O., 1990.

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Capitoli di libri sul tema "Wheat Effect of temperature on"

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Huang, B. "Wheat Anther Culture: Effect of Temperature". In Biotechnology in Agriculture and Forestry, 403–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-662-10933-5_20.

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Thakur, Vidisha, e Girish Chandra Pandey. "Effect of Water Scarcity and High Temperature on Wheat Productivity". In Plant Stress Biology, 251–75. Includes bibliographical references and index.: Apple Academic Press, 2020. http://dx.doi.org/10.1201/9781003055358-12.

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Babani, F. "Effect of High Temperature on Some Wheat Varieties via Chlorophyll Fluorescence". In Photosynthesis: from Light to Biosphere, 3761–64. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0173-5_885.

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Vos, J. "Aspects of Modelling Post-Floral Growth of Wheat and Calculations of the Effects of Temperature and Radiation". In Wheat Growth and Modelling, 143–48. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-3665-3_13.

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Lasram, Asma, Mohamed Moncef Masmoudi e Netij Ben Mechlia. "Effect of High Temperature Stress on Wheat and Barley Production in Northern Tunisia". In Water and Land Security in Drylands, 27–34. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54021-4_3.

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Wu, Jiapeng, Yusheng Huang e Kaiqi Chen. "Effect Assessment of Low Temperature Water in Reservior on the Growth of Wheat". In Advances in Water Resources and Hydraulic Engineering, 459–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89465-0_80.

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Altenbach, S. B., F. M. Dupont, D. H. Lieu, K. M. Cronin e R. Chan. "Effects of Temperature, Drought, and Fertilizer Levels on Grain Development and Gluten Protein Gene Expression in a US Wheat Cultivar". In Wheat in a Global Environment, 633–37. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-3674-9_85.

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Rhee, C., e S. W. Lee. "The Effect of Water Activity and Temperature on the Retrogradation Rate of Gelatinized Wheat Flour". In Developments in Food Engineering, 468–70. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2674-2_149.

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Herrmann, B., R. Hölzer, S. J. Crafts-Brandner e U. Feller. "Effects of CO2, Light and Temperature on Rubisco Activase Protein in Wheat Leaf Segments". In Photosynthesis: Mechanisms and Effects, 2059–62. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-3953-3_482.

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Paulino, C., e M. C. Arrabaça. "Synthesis of Sucrose and Fructans in Wheat Leaves: The Effects of Temperature". In Current Research in Photosynthesis, 3453–56. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0511-5_777.

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Atti di convegni sul tema "Wheat Effect of temperature on"

1

Minaeva, O. M., E. E. Akimova, T. I. Zyubanova e N. N. Tereshchenko. "Effect of wheat seed bacterization on the peroxidase activity under high temperature". In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.171.

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Abstract (sommario):
The paper shows the possibility of using Aeromonas media and Pseudomonas extremorientalis to reduce the negative effects of elevated temperatures on wheat, which was evaluated through peroxidase activation.
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Shakhbazov, V. G. "The combined effect of high temperature and microwave fields on winter wheat seeds". In 18th International Conference on Infrared and Millimeter Waves. SPIE, 1993. http://dx.doi.org/10.1117/12.2298630.

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Shaohu Tang, Lichao Wei, Xupeng Zhao, Li Yang e Yue Zhou. "Effect of DMSO and trehalose on physiological characteristics of wheat seedlings under low temperature stress". In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2011. http://dx.doi.org/10.1109/rsete.2011.5965697.

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Kholoptseva, E. S., A. A. Ignatenko, N. S. Repkina e V. V. Talanova. "The effect of salicylic acid on some physiological parameters wheat seedlings at optimal and low temperatures". In IX Congress of society physiologists of plants of Russia "Plant physiology is the basis for creating plants of the future". Kazan University Press, 2019. http://dx.doi.org/10.26907/978-5-00130-204-9-2019-457.

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Buntin, G. David. "Temperature and climatic effects on Hessian fly infestation and plant resistance of winter wheat in the Southeastern United States". In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94047.

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Senih Yazgan, Hasan Degirmenci e Dilruba Tatar. "Effects of Changes in Temperature and Rainfall on Bezostaya Winter Wheat Yields Using Simulation Model in Bursa Region-Turkey". In 2002 Chicago, IL July 28-31, 2002. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2002. http://dx.doi.org/10.13031/2013.20128.

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Song, Xiaoxu, Meng Zhang, Z. J. Pei, A. J. Nottingham e P. F. Zhang. "Dilute Acid Pretreatment of Wheat Straw: A Predictive Model for Energy Consumption Using Response Surface Methodology". In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1043.

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Response surface methodology was used to study the effects of parameters namely, time, temperature, and solid content and to optimize the process conditions for the minimum energy consumption in dilute acid pretreatment. Box-Behnken design using response surface methodology was employed. Effects of time and temperature are significant at the significant level of α = 0.05. Longer time and higher temperature result in higher power energy consumption. The best optimal values of the process conditions are time 14–21 min and temperature 129–139 °C.
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Aerne, Nicholas, e John P. Parmigiani. "The Effect of Temperature, Thickness, and Working Time on Adhesive Properties". In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86737.

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The need for lightweight components and non-destructive fastening techniques has led to the growth of adhesive use in many industries. Modeling the behavior of adhesives in fastening joints can help in the design process to make an optimized joint. To optimize joints in the design process, the loading conditions, environmental conditions of service, thickness of bond, and bonding procedures all need to be refined for the adhesive of interest. However, in available technical data sheets of adhesives provided by manufactures there is a gap in what is sufficient to accurately model and predict the behavior of real-world adhesive conditions. This body of research presents the results of the effects of temperature, thickness, and working time on adhesive properties. These effects can be observed with test specimens from the loading modes of interest. The loading modes of interest are mode I and mode II loading for the current study. The specimen for mode I loading is the Double Cantilever Beam, and for mode II loading is the Shear Loaded Dual Cantilever Beam. The effect of temperature will be tested by testing each specimen at −20°C, 20°C, and 40°C. Two bond thicknesses for adhesive thickness effects were tested. The working time had a control group bonded in the recommended working time and an expired working time group where the specimens were not joined until 10 minutes had passed from the recommended working time. Triplicates of each specimen at the respective conditions were tested. The adhesive selected for this research was Plexus MA832. The results of the experiment show that adhesive factors such as temperature, thickness, and working time can have degrading effects on adhesive performance in mode I and mode II.
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Kirk, Mark, e Marjorie Erickson. "A Code Case Concerning the Effect of Embrittlement on Index Temperature Metrics". In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21185.

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Abstract The ASME Section XI Working Groups on Operating Plant Criteria (WGOPC) and on Flaw Evaluation (WGFE) have undertaken an effort to develop a new Code Case (Record # 19-1113) to address the following inquiry: What method(s) are acceptable for obtaining RTNDT, RTTo and/or T0 that account for embrittlement for analytical evaluations performed in accordance with Nonmandatory Appendices A, E, G, or K in lieu of the current requirements of these Appendices? Accounting for embrittlement in Code calculations in an appropriate manner is a critical element to the operating safety of nuclear power plants. The intent of responding to this inquiry is to ensure that Code guidance on this matter is comprehensive, up-to-date with the current state of knowledge and applications, and appropriate for international use. The work on the Code Case aims to unify guidance on the following topics throughout the Code, and to fill gaps as needed: • Source of embrittlement data, • Forecasting of embrittlement trends, • Accounting for embrittlement in the inter-relationships between various toughness properties, and • Accounting for uncertainties associated with embrittlement. This paper outlines the overall structure of the Code Case, and summarizes the progress achieved to date.
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ČEPULIENĖ, Rita, e Darija JODAUGIENĖ. "INFLUENCES OF BIOLOGICAL PREPARATIONS ON SOIL PROPERTIES IN THE SPRING WHEAT CROP". In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.013.

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The natural biochemical, biophysical and biological processes in the soil is changing due to the intensive use of pesticides. At present, it is actual fertilization technologies, which are based on non-fertilizer rates increase bat on their rational use because in the fertilizer is unnecessary chemical compounds that promote mineral nutritional elements leaching. Have been studied the effect of biological preparations BactoMix, AgroMik and Rizobakterin on soil physical properties. Experiments were carried out in 2015–2016 at the Experimental Station of Aleksandras Stulginskis University on Calcari-Endohypogleyic Luvisol. The mean annual temperature of the study site is 6.0–6.5 °C, mean annual precipitation is 600–650 mm and mean annual length of sun shine is 1750–1800 hour (Lithuanian Hydrometeorological Service). Biological preparations sprayed on the soil surface and incorporated in the soil by sowing spring wheat. The use of biological preparations had a tendency to reduce soil density (from 2.3 to 5.3 %), to increase soil porosity (from 0.6 to 2.1 %). Biological preparations had no significant influence on quantity couples filled with moisture and air. The hardness of the soil after spring wheat harvest was the smallest in the fields sprayed by Rizobakterin preparation. The use of biological preparations BaktoMix and Rizobakterin significantly increased soil moisture. The following preparations significantly decreased soil pulverized fractions (micro structure) and significantly increased amount of particles larger than 10 mm.
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Rapporti di organizzazioni sul tema "Wheat Effect of temperature on"

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Sawatzky, H., I. Clelland e J. Houde. Effect of topping temperature on Cold Lake asphalt's susceptibility to temperature. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/304486.

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Cheng, Juei-Teng, e Lowell E. Wenger. Josephson Effect Research in High-Temperature Superconductors. Fort Belvoir, VA: Defense Technical Information Center, agosto 1988. http://dx.doi.org/10.21236/ada201483.

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Korinko, P. EFFECT OF FILTER TEMPERATURE ON TRAPPING ZINC VAPOR. Office of Scientific and Technical Information (OSTI), marzo 2011. http://dx.doi.org/10.2172/1025512.

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Chaudhuri, U. N., R. B. Burnett, E. T. Kanemasu e M. B. Kirkham. Response of vegetation to carbon dioxide - effect of elevated levels of CO{sub 2} on winter wheat under two moisture regimes. Office of Scientific and Technical Information (OSTI), dicembre 1987. http://dx.doi.org/10.2172/279685.

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Sun, W. D., Fred H. Pollak, Patrick A. Folkes e Godfrey A. Gumbs. Band-Bending Effect of Low-Temperature GaAs on a Pseudomorphic Modulation-Doped Field-Effect Transistor. Fort Belvoir, VA: Defense Technical Information Center, marzo 1999. http://dx.doi.org/10.21236/ada361412.

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Price, J. T., J. F. Gransden, M. A. Khan e B. D. Ryan. Effect of selected minerals on high temperature properties of coke. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/304533.

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Farkas, Z. Effect of Sled Cavity Temperature Changes on Effective Accelerating Field. Office of Scientific and Technical Information (OSTI), maggio 2006. http://dx.doi.org/10.2172/882199.

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HYUN, Hye-Ja, e In-Ho HWANG. Investigation of Tidal Effect Using Simultaneous Temperature Logging in Boreholes. Cogeo@oeaw-giscience, settembre 2011. http://dx.doi.org/10.5242/iamg.2011.0049.

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Mazzaro, Gregory J., Gregory D. Smith, Getachew Kirose e Kelly D. Sherbondy. Effect of Cold Temperature on the Dielectric Constant of Soil. Fort Belvoir, VA: Defense Technical Information Center, aprile 2012. http://dx.doi.org/10.21236/ada561950.

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Gent, A. N., Ginger L. Liu e T. Sueyasu. Effect of Temperature and Oxygen on the Strength of Elastomers. Fort Belvoir, VA: Defense Technical Information Center, marzo 1991. http://dx.doi.org/10.21236/ada233535.

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