Index Catalog // ScholarsArchive@OSU

Fallow water retention and wheat growth as affected by tillage method and surface soil compaction

Creator:: Schillinger, William F.
Abstract:: No-tillage winter wheat (Triticum aestivum L.) grown in a wheat-fallow cropping system has consistently produced lower grain yields than conventionally tilled soils in the semiarid Pacific Northwest. A 2-year study was conducted in a long-term tillage trial at Moro, OR to determine factors responsible for differences in wheat growth and...
Resource Type:: Dissertation
Full Text:: Fallow water retention and wheat growth as affected by

Comparisons of changes in the osmotic potential and apoplast water volume caused by water stress in four cultivars of spring wheat (Triticum aestivum L.)

Creator:: Chen, Chengci
Resource Type:: Masters Thesis
Full Text:: Osmotic Potential and Apoplast Water Volume Caused by Water Stress in Four Cultivars of Spring Wheat

Growth, yield and water use of rainfed wheat and maize influenced by tillage and fertilizer in Pothwar, Pakistan

Creator:: Ali, Safdar
Resource Type:: Dissertation
Full Text:: Growth, yield and water use of rainfed wheat and maize

The effect of water injection at seeding in dry soil on the germination and growth of winter wheat (Triticum aestivum L.)

Creator:: Noori, Fariborz
Abstract:: Stand establishment plays a significant role in the development and yield of winter wheat (Triticum aestivum L.). Availability of soil moisture to the germinating seed is one of the most critical factors affecting stand establishment. Water injection is a method of applying supplemental moisture to the soil in direct contact...
Resource Type:: Dissertation
Full Text:: : The effect of water injection at seeding in dry soil on the germination and growth of winter wheat

Irrigation scheduling methods and water use of sweet corn

Creator:: Braunworth Jr, William S.
Resource Type:: Dissertation
Full Text:: . Sweet corn has a relatively high water requirement, with irriga- tion costs estimated to be 27% of

Leaf stress in corn, beans, and tomatoes under optimum soil moisture conditions

Creator:: Nilsson, Colin Wayne
Abstract:: Under adverse soil moisture conditions a critical water stress or water potential develops in the plant and productivity is reduced, or in extreme cases, terminated. Research to determine the soil moisture status for maximum production of specific crops has been conducted for decades. The results have done much to increase...
Resource Type:: Masters Thesis
Full Text:: privacy Jates A. Vomocil Under adverse soil moisture conditions a critical water stress or water

Water relations and associated morphology of conditioned Douglas-fir and jack pine seedlings subjected to periods of drought stress

Creator:: McClain, K. M.
Abstract:: Significant post planting mortality of young conifer seedlings often occurs on drought prone sites because seedlings fail to either establish, or maintain favourable water relations. Survival is contingent upon growth which occurs when turgor pressure is above a threshold level. Since growth after planting is influenced by nursery cultural practices,...
Resource Type:: Dissertation

Water use characteristics of ten newly established cool-season turfgrass species

Creator:: Blankenship, Tod M.
Abstract:: Water use restrictions are continuing to have an impact on the way turf is managed today and will be managed in the future. The objective of this research was to evaluate the irrigation requirements of ten newly established cool-season turfgrass species maintained under two different mowing height and nitrogen fertility...
Resource Type:: Masters Thesis
Full Text:: Water Use of Ten Cool-Season Turfgrass Species Newly

Seasonal and diurnal trends of leaf water potential and stomatal conductance of red alder (Alnus rubra Bong) growing along a density gradient in western Oregon

Creator:: Lu, Shengjun
Abstract:: Three Nelder plots of 3-year-old red alder (Alnus rubra Bong) were used for this study at the Cascade Head Experimental Forest, Oregon in the growing season of 1988 at an elevation of 330 meters. Each Nelder plot represented a range of densities from 238 to 101,219 trees per hectare. The...
Resource Type:: Masters Thesis

Effects of bedrock water availability on growth and ecophysiology of Douglas-fir (Pseudotsuga menziesii) and Pacific Madrone (Arbutus menziesii) in southwest Oregon

Creator:: Wang, Zhengqi
Abstract:: Effects of bedrock water availability on growth and ecophysiology of Douglas-fir [Pseudotsuga TnenzieSii (Mirb.) Franco) and Pacific madrone (Arbutus inenziesii Pursh) were studied in southwest Oregon in 1990. Bedrock physical features, including bulk density, water holding capacity, and available water capacity, were examined at different depths from 1.0 to 3.0...
Resource Type:: Masters Thesis

Physiological impacts of groundwater and surface water application on desert graminoids of different geographic origin

Creator:: Abdallah, Mohamed (Mohamed Ahmed B.)
Abstract:: Desert plant communities are among the most sensitive to changes in soil water conditions. In areas with shallow aquifers, it is important to understand both the effects of groundwater alterations on vegetation and how changes in surface-soil water affect plant water uptake. Studies in arid environments have evaluated the effect...
Resource Type:: Masters Thesis
Full Text:: Physiological Impacts of Groundwater and Surface Water

Using infrared canopy temperature and leaf water potential for irrigation scheduling in peppermint (Mentha piperita L.)

Creator:: Gallardo, Ivan T.
Abstract:: Several methods of infering plant water stress for irrigation scheduling are based upon measurements of the environment in which the plants grow. These measurements include parameters such as soil water content, air temperature, pan evaporation and incident radiation. It is hypothesized that improved estimates of plant water deficit can be...
Resource Type:: Masters Thesis
Full Text:: (1981, 1982) showed a relation between CWSI and the amount of extractable water used for wheat. The

Estimated plant water use and crop coefficients for drip-irrigated hybrid polars

Creator:: Gochis, David J.
Abstract:: Estimations of plant water use can provide great assistance to growers, irrigators, engineers and water resource planners. This is especially true concerning the introduction of a new crop into irrigated agriculture. Growing hybrid poplar trees for wood chip stock and veneer production under agronomic practices is currently being explored as...
Resource Type:: Masters Thesis
Full Text:: orchard crops. At 29°S latitude they estimate an annual water requirement of 1,200 mm. At a particular

Response of 'Pinot noir' grapevines to a perennial ryegrass cover crop and irrigation in the Willamette Valley

Creator:: Wilson, William D. (William Donald), 1955-
Abstract:: A perennial grass grown in strips between the rows of grapevines, with a bare soil herbicide strip under the rows of vines, is a common form of vineyard soil management. Irrigation, though not practiced for grape culture in western Oregon at this time, could be used to supplement the soil...
Resource Type:: Masters Thesis
Full Text:: elongation. Van Rooyen et al (1980b) consider the greatest water requirement of the vine occurs between

Evaluation of evapotranspiration and irrigation performance in Oregon south coast

Creator:: Sriprisan, Sirikul (Indi)
Abstract:: This study was prompted by the need for improving the efficiency of irrigation systems at the Oregon South coastal areas. Accurate information about evapotranspiration (ET) rates is essential for maximizing the efficiency of irrigation systems. Currently, ET estimates provided by Bureau of Reclamation AgriMet Program are derived from the Kimberly...
Resource Type:: Masters Thesis
Full Text:: ........................................................................... 70 4.3.2.1 Gross water requirement and losses ............................................. 70

The use of off-stream water developments and various water gap configurations to modify the watering behavior of grazing cattle

Creator:: Clawson, Jeffrey E.
Abstract:: Two case studies were designed to study the effects of using off-stream water developments and water gap configurations to modify watering behavior of cattle. There were two objectives: 1) to evaluate an off-stream water source to reduce water quality impacts of grazing cattle on a mountain riparian zone during summer...
Resource Type:: Masters Thesis

Water relations in red and white clover seed crops

Creator:: Oliva, Ruben N.
Abstract:: Both red (Trifolium pratense L.) and white (Trifolium repens L.) clover seed yields can be highly variable and low in western Oregon. The objectives of this study were to: i) determine crop water requirements and supplemental irrigation timing, and ii) quantify the effects of soil and water status on inflorescence...
Resource Type:: Dissertation
Full Text:: within- and between-season crop water requirement changes on calculated CWSI and FAWU at Corvallis, OR

Establishing irrigation criteria for cultivation of Veratrum californicum

Creator:: Doniger, Alison R.
Abstract:: Veratrum californicum (common name: corn lily) is a wild plant species that grows in the Intermountain West, its range extending from British Columbia to Mexico. Corn lily is of interest because it has the potential to provide pharmaceutical precursors for use in the treatment of cancer. Pharmaceutical companies are currently...
Resource Type:: Masters Thesis
Full Text:: requirements and water requirement, both of which were unknown at the start of research at the OSU Malheur

Impact of exotic Ponderosa pine (Pinus ponderosa Doug. ex Laws.) plantations on water resources in northwestern Patagonia, Argentina

Creator:: Licata, Julian A.
Abstract:: Exotic ponderosa pine (Pinus ponderosa Doug. ex Lawson) plantations are being planted within the natural distribution area of cordilleran cypress (Austrocedrus chilensis (D.Don) Pic. Ser. et Bizzarri) in Patagonia, Argentina. The productivity of these exotic plantations is much greater than that of native forests, suggesting greater water use. Before these...
Resource Type:: Dissertation
Full Text:: Lawson) Plantations on Water Resources in Northwestern Patagonia, Argentina. Abstract approved

Addressing Data Resolution in Precision Agriculture

Creator:: Kelley, Jason
Abstract:: Irrigated agriculture constitutes the greatest consumptive water use globally, so that irrigation efficiency measures are an important part of global efforts to best utilize this limited resource. However, greater irrigation efficiency must be achieved while simultaneously maintaining or increasing crop yields and farming profitability. Incremental water use decisions are made...
Resource Type:: Dissertation
Full Text:: processes which mediate water demand. However, existing methods to determine the irrigation requirement

ScholarsArchive@OSU

Fallow water retention and wheat growth as affected by tillage method and surface soil compaction

Comparisons of changes in the osmotic potential and apoplast water volume caused by water stress in four cultivars of spring wheat (Triticum aestivum L.)

Growth, yield and water use of rainfed wheat and maize influenced by tillage and fertilizer in Pothwar, Pakistan

The effect of water injection at seeding in dry soil on the germination and growth of winter wheat (Triticum aestivum L.)

Irrigation scheduling methods and water use of sweet corn

Leaf stress in corn, beans, and tomatoes under optimum soil moisture conditions

Water relations and associated morphology of conditioned Douglas-fir and jack pine seedlings subjected to periods of drought stress

Water use characteristics of ten newly established cool-season turfgrass species

Seasonal and diurnal trends of leaf water potential and stomatal conductance of red alder (Alnus rubra Bong) growing along a density gradient in western Oregon

Effects of bedrock water availability on growth and ecophysiology of Douglas-fir (Pseudotsuga menziesii) and Pacific Madrone (Arbutus menziesii) in southwest Oregon

Physiological impacts of groundwater and surface water application on desert graminoids of different geographic origin

Using infrared canopy temperature and leaf water potential for irrigation scheduling in peppermint (Mentha piperita L.)

Estimated plant water use and crop coefficients for drip-irrigated hybrid polars

Response of 'Pinot noir' grapevines to a perennial ryegrass cover crop and irrigation in the Willamette Valley

Evaluation of evapotranspiration and irrigation performance in Oregon south coast

The use of off-stream water developments and various water gap configurations to modify the watering behavior of grazing cattle

Water relations in red and white clover seed crops

Establishing irrigation criteria for cultivation of Veratrum californicum

Impact of exotic Ponderosa pine (Pinus ponderosa Doug. ex Laws.) plantations on water resources in northwestern Patagonia, Argentina

Addressing Data Resolution in Precision Agriculture

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