Index Catalog // ScholarsArchive@OSU

Ignition of Fuel Beds by Firebrands

Creator:: Bean, Derek R.
Abstract:: The severity of wildfires around the globe is increasing. At the same time, urban development is expanding outward into areas where severe fires occur. There is an increased risk of home loss to fires in areas where severe fires and urban expansion meet. Ignition of homes or nearby fuel is...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Derek Bean for

The effect of diversity and spatial arrangement on biomass of agricultural cultivars and native plant species

Creator:: Worster, Catherine Anne
Abstract:: Species and cultivar combinations have been relatively well studied, though little is known about the influence of spatial arrangement on agricultural or native plant mixtures. The effect of spatial pattern on mixtures was explored in three experiments. In the first two, agricultural and native plants were planted in two-way mixtures...
Resource Type:: Masters Thesis
Full Text:: and spatial arrangements and comparisons of yield per seed in mixture versus of 6-row monocultures

Alternative snap bean planting strategies to facilitate mechanical in-row weeding : final report

Creator:: Peachey, R. Edward
Abstract:: Nonchemical weed control strategies are in short supply in snap beans, particularly strategies that target weeds within the seed row. Recent work demonstrated the limitations of propane flaming and organic herbicides for weed control in stale seedbeds. There was very little improvement in weed control with propane flame or organic...
Resource Type:: Technical Report
Full Text:: ‘hill’ planting on a 12-in spacing may be possible without significant reductions in snap bean yield

Influence of spacing and crown recession on wood quality of intensively-managed young-growth Douglas-fir

Creator:: Robbins, James M.
Abstract:: Intensive management of young-growth Douglas-fir plantations has emphasized volume growth over wood quality. A better understanding of the variables that affect wood quality is needed so that wood quality and stand yield can be systematically combined into a silviculture program. This experiment utilized two separate experiments to establish the relationship...
Resource Type:: Masters Thesis
Full Text:: density, 1 :2 rectangularity of spacing did not affect indicators of \NOOd quality relative to 1: 1

The Cosmetic Stay-Green Trait in Snap Bean and the Event Cascade that Reduces Seed Germination and Emergence

Creator:: Cirak, Melike
Abstract:: The persistent color (pc) trait in snap bean (Phaseolus vulgaris L.) belongs to a member of the cosmetic stay-green gene family. It is considered very desirable by snap bean breeders for its impacts on pod quality. Persistent color imparts a uniform dark-green color to pods and expresses in seeds as...
Resource Type:: Masters Thesis
Full Text:: shape varies from round to oblong to cylindrical and may affect bean pod smoothness. Selection for

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Creator:: Parris, Cheryl A.
Abstract:: Stevia (Stevia rebaudiana) is a perennial herbaceous plant native to Paraguay and used traditionally by the native Guarani peoples for centuries to sweeten medicinal teas. Stevia has only been commercially cultivated over the past 50 years and cultural practice information suitable for implementation by growers is limited. Currently stevia’s commercial...
Resource Type:: Masters Thesis
Full Text:: criteria had on stevia dry leaf yields, steviol glycoside content and yield, and steviol glycoside ratios

Alternative orchard floor management practices, soil quality, nitrogen fertilizeruptake, and apple tree growth and yield

Creator:: McDonald, Sarah Finger
Abstract:: Orchard floor management (OFM) practices can improve soil function and alter the soil biological community. Soil function is dependent on soil forming materials and on management practices but little is known about how OFM affect orchard soil quality, fertilizer N uptake, or tree growth and production. Research plots were located...
Resource Type:: Dissertation
Full Text:: Management Practices, Soil Quality, Nitrogen Fertilizer Uptake, and Apple Tree Growth and Yield by Sarah

Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

Creator:: Vargas, Oscar L.
Abstract:: Northern highbush blueberry is a long-lived perennial crop that is well adapted to low soil pH conditions. The plants are often shallow rooted and absorb primarily the ammonium (NH₄) form of nitrogen (N) rather than nitrate-N (NO₃-N). Traditionally, commercial blueberry fields have been irrigated with overhead sprinklers and fertilized using...
Resource Type:: Dissertation
Full Text:: Nitrogen Fertigation Practices to Optimize Growth and Yield of

Field measurements of nitrate leaching below Willamette Valley row and mint crops

Creator:: Oregon State University. Extension Service, Feaga, Jeff, and Selker, John S.
Abstract:: According to the United States Geological Survey, 9 percent of wells in the Willamette Valley exceed the EPA’s 10 ppm drinking water standard for nitrogen in the NO3– compound, or NO3–-N. A study of 281 domestic drinking water wells in Lane County showed that 22 percent of the wells exceeded...
Resource Type:: Technical Report
Full Text:: Field Measurements of Nitrate Leaching Below Willamette Valley Row

Dry weight and 15N-nitrogen and partitioning, growth, and development of young and mature blueberry plants

Creator:: Bañados, Maria Pilar
Abstract:: The effect of planting density and nitrogen (N) fertilization on growth, yield, and N partitioning in young and mature 'Bluecrop' blueberry plants was studied over a two year period. Depleted 15N-ammonium sulfate was applied at different rates and on different dates in a mature planting, and at different rates in...
Resource Type:: Dissertation
Full Text:: the second or later flushes with no effect of in-row spacing or N rate. Yield per plant was 30 to 80

ScholarsArchive@OSU

Ignition of Fuel Beds by Firebrands

The effect of diversity and spatial arrangement on biomass of agricultural cultivars and native plant species

Alternative snap bean planting strategies to facilitate mechanical in-row weeding : final report

Influence of spacing and crown recession on wood quality of intensively-managed young-growth Douglas-fir

The Cosmetic Stay-Green Trait in Snap Bean and the Event Cascade that Reduces Seed Germination and Emergence

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Alternative orchard floor management practices, soil quality, nitrogen fertilizeruptake, and apple tree growth and yield

Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

Field measurements of nitrate leaching below Willamette Valley row and mint crops

Dry weight and 15N-nitrogen and partitioning, growth, and development of young and mature blueberry plants

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