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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 101 for “"cool-season"”.
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Temporal Nutrient Dynamics in Cool-Season Pasture
… herbage nutrient concentrations, (4) analyze the seasonal variation in herbage mineral concentration with regard to beef cattle requirements, and (5) create a statistical model to predict variation in herbage mineral concentration across the growing season. Analysis of plant and soil nutrients …
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Drought and salinity tolerance of cool-season turfgrasses
… (Lolium perenne L.) are the most commonly used cool season turfgrass species in the northern regions of the United States. The thesis includes two separate studies evaluating entries in National Turfgrass Evaluation Program (NTEP) trials. These two trials were conducted to identify the most …
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Crop-water stress index models for cool season turfgrasses
Crop Water Stress Index (CWSI) technology has shown potential in improving irrigation timing as it determines timing based on the plant's need. Research was conducted to better apply this technology to turf management. The objectives of this study were (i) to determine the complexity of model …
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Seasonal changes in quality of three cool season perennial grasses
Call number: LD2668 .T4 1979 M78
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Nutritional Value of Warm- and Cool-Season Grasses for Ruminants
… 4)orchardgrass (Dactylis glomerata L.). The warm-season grasses (bermudagrass and bluestem) were higher (P < .01) in fiber components than the cool-season grasses (tall fescue and orchardgrass). Bluestem was lower (P < .001) in CP, hemicellulose, and ash, and higher in NDF (P < .001), ADF (P < …
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Effect of Grazing Pressure on Cattle Grazing Cool Season Annual Forages
<p>Ruminants can use plant fiber to produce food products that provide nourishment to humans. However, a precise understanding of specific plants selected by grazing ruminants remains elusive. Many long- and short-term factors impact cattle grazing behavior. Ultimately, grazing behavior can affect …
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Response of cool-season turfgrass to foliar applied and stabilized nitrogen fertilizers
… to determine factors that affect uptake of N by cool-season turfgrasses. Experiments were conducted to determine the quantity of foliar-applied N that is absorbed by turfgrass leaves, ways to optimize the process, and whether other common management practices can affect foliar N uptake under …
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Growth analysis and regrowth potential of three cool season grasses in spring
… and persistence. The response of stubble LAI in cool environment to produce heavier tillers shows that frequent grazing can be made in early spring to obtain much needed forage in that period. This will keep the canopy short with high LAI in the stubble. The response in high temperature regime …
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Impact of shade on cool-season forage mixtures for the Mid-Atlantic region
Silvopastures integrate trees, forages, and livestock. Tall fescue, the dominant forage in much of the U.S., harbors an endophyte that produces toxic ergot alkaloids. Diluting the sward with other forages can reduce ergot alkaloid concentrations, but it is unknown how shade impacts alkaloid …
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Conversion of Exotic Cool-Season Grasslands to Restored Native Plant Communities Utilizing Herbicide Treatments
… Great Plains are now dominated by exotic cool-season grasses such as smooth brome (Bromus inermis), Kentucky bluegrass (Poa pratensis), and reed canarygrass (Phalaris arundinacea). Information was collected to evaluate methods of control for exotic grass species and reestablishment or …
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Physiology and Growth Responses of Cool Season Turfgrasses Treated With Trinexapac -Ethyl or Paclobutrazol
… color. However, reports of variability in the seasonal responses of PGRs indicate further studies are needed to relate environmental factors to PGR efficacy. A series of studies examined TE and PAC efficacy, defined as the duration and intensity of suppression and the effects of changes in PGR …
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Radar and model-based studies of mesovortices in cool-season quasi-linear convective systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Changes in Soil Salinity Levels with the Use of Recycled Water on Cool Season Vegetables
… blended with well water is used to irrigate cool season vegetables (i.e., artichokes, broccoli, Brussels sprouts, celery, cauliflower, and lettuce) and strawberries. A long-term study was implemented by MRWPCA to monitor salinity levels in commercial vegetable fields because of grower …
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Yield and quality of cool-season perennial grasses for forage and biomass feedstocks in Northeast Colorado
… regions. Yield potentials are often lower for cool-season grasses, but for warm-season grasses like switchgrass difficult establishment and winter stand loss from extreme conditions can be a problem for production. There are many C3 species utilized in the Northeastern and the Western of the …
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An Analysis of Key Aspects of Warm and Cool Season Flash Flooding in the Southern Appalachians
… flood events. Four of the events occurred in the cool season and four occurred in the warm season. Several meteorological parameters were analyzed using NARR data and synoptic soundings for the pre-storm and storm environments of eight flash flood events. The results show significant differences …
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Phenotypic Plasticity of Native and Invasive Cool-Season Grasses in Response to Frequency of Moisture Availability
<p>Phenotypic plasticity, the ability of an individual to alter its growth in response to environmental conditions, is an attribute that is considered a likely invader attribute, as it provides the opportunity to expand its ecological niche breadth. Adaptive phenotypic plasticity can affect not …
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Avian Nesting Density and Success in Alfalfa, Cool Season CRP, and Warm Season CRP Planting in Eastern South Dakota
… and densities in dense nesting cover (DNC), warm-season natives (WSN), and alfalfa in paired field comparisons; and (2) compare vegetative and microclimate characteristics of DNC, WSN, and alfalfa in paired field comparisons. Paired fields of DNC/alfalfa and WSN/alfalfa were selected and 10% of …
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New Methodologies to Generate, Conserve, and Predict, Renewable Energy Output for Season Extension of Warm and Cool Season Vegetable Crops
… oleracea) and summer squash (Cucurbita pepo) season extension. Treatments consisted of a low tunnel heated by a solar-powered electrical strip placed under a water tube, a low tunnel heated by a passively heated water tube, a low tunnel heated by an earth-to-air heat-exchange tube, a …
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Avian Nesting Densities and Success in Introduced Cool-Season Grass-Legume Plantings Versus Warm-Season Native Grass Planting in South Dakota 2002-2003
… and idle grassland. Studies indicate that warm-season native grass plantings (WSN) generally provide good winter cover. Recently a trend favoring WSN has emerged, but limited information exists on nesting density and success of cool-season grass-legume plantings (dense nesting cover [DNC]) …
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