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• 1. [Article] Oregon's bounty of horticultural crops & landscapes

  Published December 2009. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

  Citation × Citation Citation Abstract Copy Title: Oregon's bounty of horticultural crops & landscapes Author: Seavert, Clark F., Weeks, Tom, Sugar, David, Castagnoli, S., Chilton, Mike, Brewer, Linda J., Andrews, N. (Nick), White, Linda D. (Linda Dee), Skinkis, P. (Patty), Fletcher, Richard A., Oregon State University. Extension Service, Mertz, Chris, Azarenko, A. N. (Anita Nina), McReynolds, Bob, Strik, Bernadine C. (Bernadine Cornelia), 1962-, Burt, Lawrence A., Regan, Richard, Cook, Thomas W., Olsen, Jeff L., Bondi, Michael C., Oregon State University. Department of Horticulture, Kaiser, C. (Clive) Published December 2009. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Title: Oregon's bounty of horticultural crops & landscapes Author: Seavert, Clark F., Weeks, Tom, Sugar, David, Castagnoli, S., Chilton, Mike, Brewer, Linda J., Andrews, N. (Nick), White, Linda D. (Linda Dee), Skinkis, P. (Patty), Fletcher, Richard A., Oregon State University. Extension Service, Mertz, Chris, Azarenko, A. N. (Anita Nina), McReynolds, Bob, Strik, Bernadine C. (Bernadine Cornelia), 1962-, Burt, Lawrence A., Regan, Richard, Cook, Thomas W., Olsen, Jeff L., Bondi, Michael C., Oregon State University. Department of Horticulture, Kaiser, C. (Clive) Published December 2009. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Close

• 2. [Article] Standing in the Way of Control : Small Farmers, Water Use, and Technology Adoption in Oregon

  In recent years, several interrelated forces—prolonged drought, growing populations, height-ened environmental protections, sustained agricultural use, and hydrologic alterations due to climate change—have ...

  Citation × Citation Citation Abstract Copy Title: Standing in the Way of Control : Small Farmers, Water Use, and Technology Adoption in Oregon Author: Hepperly, Jody R. In recent years, several interrelated forces—prolonged drought, growing populations, height-ened environmental protections, sustained agricultural use, and hydrologic alterations due to climate change—have increased pressure on water users in the Western United States, where the agricultural sector accounts for up to 90% of total water withdrawals. Technology im-provements developed since the 1950s have increased irrigation efficiency on many farms, and more recently networked technologies have promised to transform agriculture again, through advanced analytics, in-field sensors, and other telecommunications technology. While economies of scale and access to capital have spurred growth on larger farms, imple-mentation on smaller farms has lagged. This thesis is based on research initially proposed by Intel Labs and uses ethnographic interviews with farmers and policymakers in Oregon to un-derstand the both the barriers to technology implementation and the underlying factors asso-ciated with on-farm water use and technology adoption in Oregon. An analysis of interview data reveals several significant barriers to technology implementation, many of which are re-lated to the perceptions small farmers hold about themselves, their community, technology, regulation, water use, and the future. This thesis also examines the interconnections between Integrated Water Resources Management (IWRM) and networked technology implementa-tion, and examines the utility of that policy framework to explain the challenges faced by small farmers as stakeholders in relation to water management decisions in Oregon. Title: Standing in the Way of Control : Small Farmers, Water Use, and Technology Adoption in Oregon Author: Hepperly, Jody R. In recent years, several interrelated forces—prolonged drought, growing populations, height-ened environmental protections, sustained agricultural use, and hydrologic alterations due to climate change—have increased pressure on water users in the Western United States, where the agricultural sector accounts for up to 90% of total water withdrawals. Technology im-provements developed since the 1950s have increased irrigation efficiency on many farms, and more recently networked technologies have promised to transform agriculture again, through advanced analytics, in-field sensors, and other telecommunications technology. While economies of scale and access to capital have spurred growth on larger farms, imple-mentation on smaller farms has lagged. This thesis is based on research initially proposed by Intel Labs and uses ethnographic interviews with farmers and policymakers in Oregon to un-derstand the both the barriers to technology implementation and the underlying factors asso-ciated with on-farm water use and technology adoption in Oregon. An analysis of interview data reveals several significant barriers to technology implementation, many of which are re-lated to the perceptions small farmers hold about themselves, their community, technology, regulation, water use, and the future. This thesis also examines the interconnections between Integrated Water Resources Management (IWRM) and networked technology implementa-tion, and examines the utility of that policy framework to explain the challenges faced by small farmers as stakeholders in relation to water management decisions in Oregon. Close

• 3. [Article] Grapevine Leafroll associated Virus – 3 (GLRaV-3) Seasonal Titer Changes and Effects on Pinot Noir Fruit in Oregon

  The Willamette Valley, west of the Cascade mountain range in the state of Oregon, is home to a growing number of vineyards. This rather recent, booming industry of the region has become an important component ...

  Citation × Citation Citation Abstract Copy Title: Grapevine Leafroll associated Virus – 3 (GLRaV-3) Seasonal Titer Changes and Effects on Pinot Noir Fruit in Oregon Author: Wright, Sarah K. The Willamette Valley, west of the Cascade mountain range in the state of Oregon, is home to a growing number of vineyards. This rather recent, booming industry of the region has become an important component of the economy of the state’s agriculture since the late 1960’s, contributing more than $1.56 billion in 2010 (USDA NASS). Disease control is an important element of maintaining the quality of grapes for use in wine and keeping the industry healthy. This can be costly and frustrating for growers and viticulturists. Of the many viruses that affect grapes, Grapevine leafroll associated virus-3 (GLRaV-3) is the most common (Tsai et al., 2008)and could become an issue in the Willamette Valley. It has been reported that the titer of GLRaV-3 increases during the growing season and that the most reliable detection is in the late summer and autumn. This is based on work using serological assays such as ELISA. Proposed research project was (1) to quantify the increases of GLRaV-3 RNA weekly during the growing season for two consecutive years and (2) compare differences in sugar level, elasticity, and color index properties between healthy and GLRaV-3 infected fruit during the ripening phase. In the trial involving young leaf tissue, GLRaV-3 titer quantified for 2010 illustrated a 210-, or 1,000-fold total increase over the duration of the growing season (Fig. 3a), and 212-, or 4,000-fold increase for the year 2011 (Fig. 3b). GLRaV-3 titer in young leaf tissues displayed the greatest increase throughout the growing season in all plants relative to initial titer at week one (Fig. 3a,b). This is most likely due to a reduced rate of plant growth as the season progressed in the young leaves, allowing for virus titer increase on a tissue weight basis. . Middle-aged and mature leaves develop a leathery feel because of a more developed cuticle, which offers more protection to the plant from biotic and abiotic elements, but is harder to wash and separate from RNA in the extraction process. As seen in Figure 4e, mature leaf tissue from the 114/Gloire grafted clone displayed little amplification. Leaf protecting cuticles could be the cause of this from inhibition of RNA extraction, or inhibition of enzymatic activity during the RT or PCR steps; however, the same trend was not observed in 2011 (Figure 4f). Title: Grapevine Leafroll associated Virus – 3 (GLRaV-3) Seasonal Titer Changes and Effects on Pinot Noir Fruit in Oregon Author: Wright, Sarah K. The Willamette Valley, west of the Cascade mountain range in the state of Oregon, is home to a growing number of vineyards. This rather recent, booming industry of the region has become an important component of the economy of the state’s agriculture since the late 1960’s, contributing more than $1.56 billion in 2010 (USDA NASS). Disease control is an important element of maintaining the quality of grapes for use in wine and keeping the industry healthy. This can be costly and frustrating for growers and viticulturists. Of the many viruses that affect grapes, Grapevine leafroll associated virus-3 (GLRaV-3) is the most common (Tsai et al., 2008)and could become an issue in the Willamette Valley. It has been reported that the titer of GLRaV-3 increases during the growing season and that the most reliable detection is in the late summer and autumn. This is based on work using serological assays such as ELISA. Proposed research project was (1) to quantify the increases of GLRaV-3 RNA weekly during the growing season for two consecutive years and (2) compare differences in sugar level, elasticity, and color index properties between healthy and GLRaV-3 infected fruit during the ripening phase. In the trial involving young leaf tissue, GLRaV-3 titer quantified for 2010 illustrated a 210-, or 1,000-fold total increase over the duration of the growing season (Fig. 3a), and 212-, or 4,000-fold increase for the year 2011 (Fig. 3b). GLRaV-3 titer in young leaf tissues displayed the greatest increase throughout the growing season in all plants relative to initial titer at week one (Fig. 3a,b). This is most likely due to a reduced rate of plant growth as the season progressed in the young leaves, allowing for virus titer increase on a tissue weight basis. . Middle-aged and mature leaves develop a leathery feel because of a more developed cuticle, which offers more protection to the plant from biotic and abiotic elements, but is harder to wash and separate from RNA in the extraction process. As seen in Figure 4e, mature leaf tissue from the 114/Gloire grafted clone displayed little amplification. Leaf protecting cuticles could be the cause of this from inhibition of RNA extraction, or inhibition of enzymatic activity during the RT or PCR steps; however, the same trend was not observed in 2011 (Figure 4f). Close