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

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

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 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

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

Potato (Solanum tuberosum L.) tuber quality response to a transient water stress

Creator:: Eldredge, Eric P.
Resource Type:: Dissertation
Full Text:: field under shade cloth and full sunlight (Sale, 1973). The water requirement for potato production

Height-related trends in structure and function of Douglas-fir foliage

Creator:: Woodruff, David R.
Abstract:: This dissertation investigated the impacts of tree height upon a range of physiological and structural characteristics of Douglas-fir foliage; relationships between structural and functional trends with height; and compensatory mechanisms that mitigate height-related growth constraints. Height-related trends in foliar physiological and anatomical characteristics were examined both within trees as well...
Resource Type:: Dissertation
Full Text:: dissertation is the first to evaluate the effects of the gravitational component of water potential on the

Effect of nitrogen and water stresses during tillering and grain- filling in wheat

Creator:: Ashraf, Muhammad, 1952-
Abstract:: The CERES-Wheat Crop Growth and Development model treats temperature, nitrogen and water stresses as limiting factors. For each day the model calculates a stress index for temperature, N and water, compares the magnitude of the indices, and then adjusts the calculated daily potential growth using the index of the most...
Resource Type:: Dissertation
Full Text:: undertaken to evaluate the combined effects of N and water stress on growth and development of wheat

ScholarsArchive@OSU

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

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

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

Water relations in red and white clover seed crops

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

Addressing Data Resolution in Precision Agriculture

Potato (Solanum tuberosum L.) tuber quality response to a transient water stress

Height-related trends in structure and function of Douglas-fir foliage

Effect of nitrogen and water stresses during tillering and grain- filling in wheat

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