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Showing 1 to 20 of 32 for “"grain protein"”.
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Regulation of floury2-mRFP expression in response to long term selection for grain protein concentration in maize
… and twenty-one cycles of divergent selection for grain protein and oil concentration have produced populations with the known phenotypic extremes for this trait, and also illustrate the nature of responses to phenotypic selection. This report provides updates to the experiment, including the …
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Genetic analysis of grain protein concentration and related traits in the Illinois protein strain recombinant inbred population of maize
… vegetative source tissues as the abundant zein proteins. However, zein protein is deficient in essential amino acids, and limited knowledge of zein regulation impedes approaches for achieving more nutritious Quality Protein Maize. We employ a candidate gene approach for investigating potential …
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Nitrate Reductase Activity and Its Relationship to Yields of Grain and Grain Protein in Normal and Opaque-2 Corn (Zea Mays L.) Hybrids
Made available in DSpace on 2014-12-12T00:17:41Z (GMT). No. of bitstreams: 1 7114724.pdf: 4449794 bytes, checksum: 312e67e155609a13ea08a30f0f8ef0ca (MD5) Previous issue date: 1970
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Nitrate Reductase Activity in Wheat (Triticum Aestivum L.) and Its Relationship to Grain Protein Production as Affected by Genotype and Spring Application of Calcium-Nitrate
Made available in DSpace on 2014-12-10T17:12:41Z (GMT). No. of bitstreams: 1 6910691.pdf: 5166704 bytes, checksum: a2f16548d1a1e86f1c28a195f791ddb2 (MD5) Previous issue date: 1968
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Genetic and Environmental Responses of Harvest Index and Other Agronomic Traits in Winter Wheat (Triticum Aestivum L.) and Spring Oats (Avena Sativa L.)
… production, and growth rate, for improving grain yield. The effect of four nitrogen fertilizer treatments on harvest index, grain yield, grain protein percentage, grain protein yield, and total dry matter yield of wheat was evaluated for nine soft and three hard red winter wheat cultivars in …
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Discovery of novel regulators and genes in nitrogen utilization pathways in maize
… that differ in N utilization: Illinois High Protein (IHP1), Illinois Low Protein (ILP1) and B73. IHP1 and ILP1 are inbred strains developed from the Illinois long term selection experiment (ILTSE) for seed nitrogen concentration. The developmental dynamics of nitrogen response were described …
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Leaf Lamina Reduced Nitrogen Concentration and Nitrate Reductase Activity as Criteria for the Identification of Productive Maize Genotypes
… (Zea mays L.) were examined for relationships to grain yield, yield components, grain protein, maturity, and soil nitrogen fertility (N). Genotypes were classed as high and low for NRA (HNRA and LNRA respectively), and within those classes as high and low for TRNC (HTRNC and LTRNC respectively). …
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Functional Genomics of Nitrogen Use in Maize
… nitrogen (N) accumulated during growth into grain yield. Little is known about what determines this capacity, termed N-utilization efficiency (NUtE) in agronomic studies. However, recent investigations have implicated the variation in how carbon (C) and N are partitioned within source …
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Divergent Phenotypic Recurrent Selection for Nitrate Reductase Activity and Correlated Responses in Maize
… response of NRA and the correlated responses in grain yield, grain protein, dry matter production and related parameters. The correlative responses were obtained by growing C(,0) and the four composites from selection under comparable single season environments. Auxiliary studies determined: the …
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Phenotypic response to selection for protein in maize kernels
Long-term, divergent selection for protein concentration in maize grain has been conducted at the University of Illinois since 1896. Grain protein concentration in maize and other cereal crops is strongly associated with productivity, nutritional quality, and processing characteristics. Although …
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Fine mapping and characterization of genes involved in maize nitrogen utilization efficiency
… Inbred Lines (IBMRIL) X Illinois High Protein (IHP) mapping population. Previous QTL mapping experiments using this population have identified 9 robust genomic regions associated with NUtE and associated traits. In order to identify candidate genes in additional QTL from the IBMRIL X …
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Optimising durum wheat yield and quality
… the pasta industry. Quality parameters include protein content and falling number of grain and flour, and flour and pasta colour. In this study, colour of grain, flour and pasta was quantified using the CIELAB colour space. High quality durum grain and flour was defined as that with high …
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Comparative Resistance of Maize populations to the maize weevil,Sitophilus zeamais Motschulsky
… A study was conducted to identify maize cob and grain characteristics conferring resistance to the maize weevil in selected maize genotypes. Field and laboratory experiments were conducted using 52 maize genotypes of varying resistance to the pest. Field experiments looked at husk cover length …
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Comparative Resistance of Maize populations to the maize weevil,Sitophilus zeamais Motschulsky
… A study was conducted to identify maize cob and grain characteristics conferring resistance to the maize weevil in selected maize genotypes. Field and laboratory experiments were conducted using 52 maize genotypes of varying resistance to the pest. Field experiments looked at husk cover length …
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Strategic applications of nitrogen fertiliser to increase the yield and nitrogen use efficiency of wheat.
… In both seasons and sites significant (P<0.05) grain yield increases were obtained by later nitrogen application times. Grain protein also increases with rate of applied nitrogen and delayed time of application, with the 1st node (GS31) treatment generally producing the highest values. Applying …
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Genome editing with CRISPR-Cas9 in the Illinois long term selection experiment
… Repeat (CRISPR) and CRISPR Associated Protein 9 (Cas9) have markedly increased our ability to characterize genes and use genetics to the benefit of agriculture. In this work, we utilize this technology to study the Illinois Long Term Selection Experiment (ILTSE), a unique germplasm …
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Late-split application of nitrogen on corn
… near the base of the plants at tasseling. Grain protein content, grain N content, and chlorophyll concentration measurements were collected in the trials conducted at Urbana. Grain protein and N content were found to be very similar between application timings. Chlorophyll concentrations in …
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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
… of different N split applications on growth, grain yield, grain protein content (GPC), and NUE. Treatments included single fertilization at sowing, early booting, and/or late anthesis with different N rates for each application. Splitting N did not increase grain yield compared to a single …
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Genetics of partial resistance of wheat to septoria tritici blotch
… increasing yield components, including thousand grain weight and grains m-2, and to genes that increase the qualitative trait grain protein content. Hence, there is a yield penalty of resistance to STB but it should be possible for breeders to select high-yielding resistant varieties by selecting …
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The NAM-B1 transcription factor and the control of grain composition in wheat
The NAM-B1 transcription factor increases grain protein content, alters grain micronutrient content and accelerates monocarpic senescence, often without imposing a yield penalty. The aim of this thesis was to understand the mechanisms by which NAM-B1 influences nutrient remobilisation and …
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