Global ETD Search
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Showing 1 to 20 of 62 for “"Nue"”.
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Nitrogen utilization in creeping bentgrass
… for screening nitrogen utilization efficiency (NUE) of turfgrasses are needed, since nitrate contamination of ground water is a concern on golf courses. In the first study, the conditions of N utilization of fourteen bentgrass cultivars were compared in hydroponic solution culture. There were …
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Evaluation of wheat(triticum aestivum l.)gentypes for nitrogen and water use efficiency
… use efficiency (WUE), nitrogen use efficiency (NUE), ear length, above ground biomass, plant height, thousand kernel weight, grains per ear, harvest index, spikes per ear, days to 50 % flowering and leaf rolling were assessed and analysed. Correlation and stepwise multiple regression analyses …
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Evaluation of wheat(triticum aestivum l.)gentypes for nitrogen and water use efficiency
… use efficiency (WUE), nitrogen use efficiency (NUE), ear length, above ground biomass, plant height, thousand kernel weight, grains per ear, harvest index, spikes per ear, days to 50 % flowering and leaf rolling were assessed and analysed. Correlation and stepwise multiple regression analyses …
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Genetic Analysis of Nitrogen Use Efficiency and Related Traits in the IBMRIL X IHP1 Population of Maize
… genomic regions controlling N use efficiency (NUE) and related traits in maize and to associate candidate genes with the regions in an effort to elucidate the genetic mechanisms controlling the N-response. The high resolution Intermated B73 X Mo17 Recombinant Inbred Line (IBMRIL) population was …
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Physiological Traits and Quantitative Trait Loci Associated with Nitrogen Use Efficiency in Soft Red Winter Wheat
… genotypic variation for N use efficiency (NUE) and identify lines consistently expressing high or low NUE under two or more N rates in a total of 51 N-environments. The results indicated that significant genotype by N rate interactions were frequently observed when trials utilized at least …
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Genetic improvement for nitrogen utilization in maize
Increased nitrogen use efficiency (NUE) is an important target for future maize improvement. Essential to the design of an effective breeding program to select maize hybrids with enhanced NUE is an understanding of past progress, variation among maize germplasm for NUE and its component traits, and …
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Cropping systems under water-limited conditions: effects of rotation and nitrogen management on yield, resource use efficiency, profitability, and soil properties
… efficiency (WUE), nitrogen-use efficiency (NUE), soil properties, and economic performance. A long-term field experiment conducted from 2014 to 2024 under limited irrigation in south-central Nebraska evaluated five corn-based rotations: continuous corn (C), corn-sorghum (C-Sg), corn-soybean …
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Crop Rotations for Sustainable Intensification
… yields while improving nitrogen use efficiency (NUE) in arable cropping systems. The research is based on a long-term crop rotation experiment conducted at a high-yielding site in Northern Germany. At the cropping-system level, yield formation and N offtake were primarily driven by prevailing …
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Vergleich von Miktionscystourethrographie und niedrig dosierter, kontrastverstärkter Miktionsurosonographie mittels Harmonic Imaging zur Diagnostik des vesicoureteralen Refluxes bei Kindern
… standen insgesamt 114 Nieren-Ureter-Einheiten (NUE) zur Verfügung. In 29 NUE wurde mit einer oder beiden Methoden ein vesikoureteraler Reflux (VUR) diagnostiziert. In 7 NUE wurde der Reflux nur mit Hilfe der MUS, in 3 NUE nur mittels MCU diagnostiziert. Beim Vergleich der MUS mit der …
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Strategic applications of nitrogen fertiliser to increase the yield and nitrogen use efficiency of wheat.
… nitrogen fertiliser on nitrogen use efficiency (NUE) to dryland wheat. Treatments were applied to manipulate the crop canopy and to measure the balance between canopy size and structure and crop nitrogen uptake. In both seasons and sites significant (P<0.05) grain yield increases were obtained by …
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The Effect of Split Nitrogen Fertilization on Yield, Quality, and Nitrogen Use Efficiency of Spring Barley Grown on Two Different Soil Types in Iceland
… aimed at maximizing nitrogen use efficiency (NUE) by applying N at specific growth stages when plant utilization is greatest, thereby minimizing environmental impacts from runoff and greenhouse gas emissions. Icelandic studies on split fertilization in cereal cultivation are scarce, and the …
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Physiological and Molecular Dissection of Salinity Tolerance in Arabidopsis and Maize and Nitrogen Uptake in Wheat
… with contrasting nitrogen-use-efficiency (NUE), VA08MAS-369 and VA07W-415, to dissect physiological and molecular mechanisms underlying NUE regulation. Our agronomic data revealed that line 369 maintained yield and yield-related parameters and exhibited greater NUE indexes relative to line …
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Physiology Characterization of Nitrogen Use in Maize: Opportunities for Improvement
… associated with the efficiency of N use (NUE) and their importance in designing crop management strategies and in developing breeding programs for improved N use. The overall objective of this work was to identify and characterize physiological N response traits that are under genetic …
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Soil Carbon and Nutrient Cycling Across Cover Types in Southern Appalachian Hardwood Forests
… (2) water and nutrient use efficiencies (WUE and NUE) would not differ among the cover types, and (3) litter decomposition would not differ among the diverse cover types. In 0.02 ha plots, replicated four times, Rs and associated variables (e.g., soil temperature and moisture) were measured. …
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Genetic Analysis of Nitrogen Remobilization and Kernel Compositon in Zea Mays L. and Sorghum Bicolor (L.) Moench
… this reason, improving Nitrogen Use Efficiency (NUE) is a major goal of breeders and producers. Nitrogen Utilization Efficiency (NUtE) is one component of NUE, and the most important component under N-limited conditions. In this study we examined the genetic controls of the timing and …
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Agronomic and marker-assisted breeding strategies for improving nitrogen use efficiency in maize
… inputs. Improved nitrogen use efficiency (NUE) can maximize maize yield with minimal inputs of N fertilizer, but requires coordinated progress in several areas of the crop’s production (e.g. genetic improvement, genetic characterization, and crop management). The objectives of this PhD …
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Time And Rate Of Nitrogen Fertilization Influence Maize Nitrogen Use Efficiency And Soil Enzyme Activity
… nutrient uptake, and nitrogen use efficiency (NUE). At Lamberton, grain yield, nutrient uptake, and NUE parameters did not differ among treatments applied at recommended rates, regardless of application time. At Waseca, applying the recommended N rate as either a two- or three-way split …
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Nitrogen Fertilization of Hybrid Hazelnuts in the Upper Midwest of the USA
… ammonium nitrate to compare N uptake efficiency (NUE) from soil applications in mid-April, late April, late May, early August, and mid-September 2005. N uptake was slow before bud-break. N applied in the spring after bud-break was quickly translocated to plant parts with the greatest near-term …
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Toward circular and sustainable nitrogen (N) management in the US and globally
… driving forces of crop nitrogen use efficiency (NUE) using county-level data in the US and China, I show that NUE responds nonlinearly to N inputs, with country-specific tipping points beyond which additional inputs reduce efficiency. With system-wide inefficiencies and key NUE drivers, Chapters …
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Winter Barley as a Commodity Cover Crop in the Mid-Atlantic Coastal Plain and Evaluation of Soft Red Winter Wheat Nitrogen Use Efficiency by Genotype, and its Prediction of Nitrogen Use Efficiency through Canopy Spectral Reflectance in the Eastern US
… fertilizer input. Nitrogen use efficiency (NUE) of soft red winter wheat (SRWW) can be improved by characterizing genotypes for NUE using canopy spectral reflectance [(CSR), a cheap, rapid and non-destructive remote sensing tool]. The other objectives of this study were to evaluate the …
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