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Filtering by: Alternative title ssim Crop pest series no. 1 Remove constraint Alternative title ssim: Crop pest series no. 1 Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) Language English [eng] Remove constraint Language: English [eng]

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  • Seedling recruitment of hairy nightshade and other summer annual weeds in irrigated row crops

    Creator:
    Peachey, Ronald Edward
    Abstract:
    This study evaluated the effects of tillage system, rotational tillage sequences, and winter seed burial depth on weed seedling recruitment in irrigated cropping systems. Notill (NT) planting of vegetable crops reduced emergence of hairy nightshade by 77 to 99% and Powell amaranth emergence from 50 to 87% compared to conventional...
    Resource Type:
    Dissertation
    Full Text:
    strip-plot with cover crop treatments (3 small grain cereals and 1 fallow treatment) imposed on whole

  • Methods to improve the reliability and resiliency of near/sub-threshold digital circuits

    Creator:
    Crop, Joseph A.
    Abstract:
    Energy consumption is one of the primary bottlenecks to both large and small scale modern compute platforms. Reducing the operating voltage of digital circuits to voltages where the supply voltage is near or below the threshold of the transistors has recently gained attention as a method to reduce the energy...
    Resource Type:
    Dissertation
    Full Text:
    Near/Sub-Threshold Digital Circuits AN ABSTRACT OF THE DISSERTATION OF Joseph A. Crop for the

  • Selecting optimum crop rotation

    Creator:
    El-Nazer, Talaat Y.
    Abstract:
    The crop rotation decision is important to farmers because of its impact on profitability, financing and risk exposure. This thesis addresses the problem of farm level crop rotation selection under perfect and imperfect knowledge of prices, yields and costs. The problem is addressed by first estimating production functions for irrigated...
    Resource Type:
    Dissertation
    Full Text:
    below. 1. Increased Yieldsz The preceeding crop in a rotation has an important influence on crop

  • A test of the differentiation of soil series within the Willamette catena

    Creator:
    Pomerening, James A.
    Resource Type:
    Dissertation
    Full Text:
    series of both the Miami catena and the Miami family (6, p. 1-53). They selected but one representative

  • Transcriptomic Analyses of Crop Plants using Next-Generation Sequencing Technology

    Creator:
    Geniza, Matthew J.
    Abstract:
    Advancements in molecular biology and computer science have enabled researchers the ability to investigate the transcriptome – the quantification of an organism’s RNA transcripts in response to its environment on a system wide scale. The collective chapters of this thesis utilize high-throughput RNA sequencing, which produces hundreds of millions of...
    Resource Type:
    Dissertation
    Full Text:
    October 31, 2017. Title: Transcriptomic Analyses of Crop Plants using Next-Generation Sequencing

  • AppleMgr, a prototype decision aid for apple pest management

    Creator:
    Haley, Sue
    Abstract:
    Computer decision aids can help integrate and apply diverse sources of information and expertise to problems of integrated pest management (IPM) in agriculture and forestry. AppleMgr combines a rule-based expert system with databases and spreadsheets in a prototype decision aid intended to be expanded and modified for use by extension...
    Resource Type:
    Dissertation
    Full Text:
    Delicious prices, 1979-88 37 6. Estimating crop value with no crop sample 39 7. Estimating crop value with

  • Specification of local surface weather elements from large-scale general circulation model information, with application to agricultural impact assessment

    Creator:
    Wilks, Daniel S.
    Abstract:
    A procedure for model-assisted climate impact assessment is developed. The approach combines data from observations and atmospheric general circulation models (GCNs), and provides the basis for a potentially valuable means of using information derived from GCMs for climate impact assessments on local scales. The first component of this procedure is...
    Resource Type:
    Dissertation
    Full Text:
    change ( t2X-001]/C1X-001) ) in average simulated crop yields for Box 1. 175 Figure 34. Relative change

  • Mapping and introgression of disease resistance genes in barley (Hordeum vulgare L.)

    Creator:
    Toojinda, Theeryut
    Abstract:
    Molecular tools, coupled with unique germplasm stocks and rigorous phenotyping, are useful for developing a better understanding of qualitative and quantitative disease resistance genes in plants. The identification of molecular markers linked to all types of resistance genes provides opportunities for implementing a range of resistance breeding strategies, ranging from...
    Resource Type:
    Dissertation
    Full Text:
    , representing Crop fence ead of Department of Crop and Soil Science can of Gradua 1 chool I understand that

  • Stripe rust resistance pyramids in barley

    Creator:
    Castro Tabo, Ariel Julio
    Abstract:
    Genetic resistance is the most appropriate way to control diseases in crop plants. Resistance can be described as qualitative (involving a gene-for-gene system) or quantitative (with continuous distribution of disease levels). The relationships between different types of resistance remain obscure, as does the genetics of quantitative traits. The use of...
    Resource Type:
    Dissertation
    Full Text:
    Agricultural Experiment Station paper No. 11817 Crop Science 42 (in press) 10 ABSTRACT Barley stripe rust

  • Optimizing virus detection in potato breeding populations

    Creator:
    Hane, Dan C.
    Abstract:
    Virus contamination in a potato breeding program can seriously disrupt the variety development process. Experiments were conducted from 1989 through 1993 to: evaluate the extent to which Potato Leafroll Virus (PLRV) and Potato Virus Y (PVY) can invade a breeding program, determine viral spread within hills and within individual tubers,...
    Resource Type:
    Dissertation
    Full Text:
    evaluation. Subset 1 had no PLRV or PVY positive tubers. For subset 2, each hill contained at least one