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Monitoring potato leafroll virus movement in differentially aged potato (Solanum tubersom L.) plants with an immunosorbent direct tissue blotting assay

Creator:: Whitworth, Jonathan L.
Abstract:: Potato leafroll virus (PLRV) causes yield and quality losses in potato. PLRV is identified by plant symptoms and serological tests such as an enzyme-linked immunosorbent assay (ELISA). A similar serological test, direct tissue blotting assay (DTBA), was used to detect and monitor PLRV movement in field-inoculated Russet Burbank plants and...
Resource Type:: Dissertation
Full Text:: reported dates for the onset of mature plant resistance to PVY (strain PVY") range from mid-July to August

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:: PLRV infected hills with healthy tubers based on a series of tuber and plant grow-out tests, single

Breeding qualitative and quantitative traits for potatoes in the Columbia Basin

Creator:: Graebner, Ryan C.
Abstract:: The cultivated potato (Solanum tuberosum L.) is one of the world’s most important staple crops, ranked fourth after maize, rice, and wheat. While the potato’s success is due largely to its high yield, it also benefits from its broad global acceptance, and its ability to be used by the consumer...
Resource Type:: Dissertation
Full Text:: ........................................................................................................... 18 2.3.1 Plant material

Weed control with glyphosate and glufosinate in herbicide-resistant sugarbeets (Beta vulgaris L.).

Creator:: Guza, Corey J.
Abstract:: Field studies were conducted in 1998 and 1999, to evaluate glyphosate and glufosinate for control of redroot pigweed, common lambsquarters, hairy nightshade, and barnyardgrass in herbicide-resistant sugarbeets. Treatments that included two or three applications of glyphosate, regardless of rate, or glyphosate applied once in combination with BAS 656 07 H...
Resource Type:: Masters Thesis
Full Text:: , postemergence, systemic herbicides that have activity on a wide range of broadleaf and grass plant species 4

Sethoxydim herbicide in red fescue and bentgrass : levels and mechanisms of selectivity

Creator:: Butler, J. Hugh B.
Abstract:: The herbicide rate required to reduce growth by 50% (GR₅₀) of 11 cultivars of red fesue (Festuca rubra L. and F. rubra ssp. commutata) and for four cultivars of bentgrass (Agrostis tenuis Sibth. and A. stolonifera L. var. palustris) to sethoxydim (2-[1-(ethoxyimino) butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one) was determined in greenhouse and laboratory experiments....
Resource Type:: Dissertation
Full Text:: elongation of red fescue roots germinated in petri dishes in the laboratory and grown in a range of molar

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Creator:: Jantasuriyarat, Chatchawan
Abstract:: Spike morphology characteristics and the free-threshing habit of wheat have been extensively investigated because of their evolutionary significance and practical importance. Several genetic systems that govern these traits have been reported. Some studies suggest polygenic inheritance while others have identified major genes. This study was conducted to identify and locate...
Resource Type:: Masters Thesis
Full Text:: .............................................................57 3.3 Mean trait values of the parental lines W-7984, Opata 85, and Altar 84, and I 10 recombinant

Photomorphogenic processes in the agricultural environment

Creator:: Ballaré, Carlos L.
Resource Type:: Dissertation
Full Text:: influences plant growth and development not only because it modifies the availability of light energy and

Farmer perspectives on the transition to organic agriculture : an Oregon study of farmer motivations and barriers

Creator:: Lloyd, Deanna M.
Abstract:: In the midst of double-digit growth in market demand for organic products, there is a lag in the growth of certified organic production in the United States. This thesis investigated the motivations and barriers farmers face when making the transition to organic agriculture. Three distinct organic farmer typologies were identified:...
Resource Type:: Masters Thesis
Full Text:: ......................................................................................................................57 Participant Selection

Water injection into the seed zone as an aid to emergence of dryland cereals

Creator:: Estes, James Patrick
Abstract:: An adequate stand at the optimum time is an important factor affecting potential yield and soil erosion control. However, obtaining adequate stands of fall planted winter wheat in the dryland areas of the Pacific Northwest is often complicated by marginal seed zone soil moisture. The purpose of this laboratory study...
Resource Type:: Masters Thesis
Full Text:: in moisture tension, until at -20 bars there was no emergence. The effective range of water

Plant and seed development in four Cuphea species

Creator:: Kaliangile, Imanga
Resource Type:: Masters Thesis
Full Text:: appears Cuphea may be grown over a wide range of latitudes. Plant and Seed Development in Four Cuphea

ScholarsArchive@OSU

Monitoring potato leafroll virus movement in differentially aged potato (Solanum tubersom L.) plants with an immunosorbent direct tissue blotting assay

Optimizing virus detection in potato breeding populations

Breeding qualitative and quantitative traits for potatoes in the Columbia Basin

Weed control with glyphosate and glufosinate in herbicide-resistant sugarbeets (Beta vulgaris L.).

Sethoxydim herbicide in red fescue and bentgrass : levels and mechanisms of selectivity

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Photomorphogenic processes in the agricultural environment

Farmer perspectives on the transition to organic agriculture : an Oregon study of farmer motivations and barriers

Water injection into the seed zone as an aid to emergence of dryland cereals

Plant and seed development in four Cuphea species

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