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Creator:: Taylor, Anne E., Vajrala, Neeraja, Giguere, Andrew T., Gitelman, Alix I., Arp, Daniel J., Myrold, David D., Sayavedra-Soto, Luis, and Bottomley, Peter J.
Abstract:: Ammonia (NH₃)-oxidizing bacteria (AOB) and thaumarchaea (AOA) co-occupy most soils, yet no short-term growth-independent method exists to determine their relative contributions to nitrification in situ. Microbial monooxygenases differ in their vulnerability to inactivation by aliphatic n-alkynes, and we found that NH₃ oxidation by the marine thaumarchaeon Nitrosopumilus maritimus was unaffected...
Resource Type:: Article

Creator:: Yan, Guiping, Smiley, Richard W., Okubara, Patricia A., Skantar, Andrea M., and Reardon, Catherine L.
Abstract:: Pratylenchus neglectus is one of the most widespread and economically important nematodes that invades plant roots and restricts wheat productivity in the Pacific Northwest. It is challenging to quantify P neglectus using microscopic methods for studies that require large-scale sampling, such as assessment of rotation crops, wheat cultivars, and other...
Resource Type:: Article
Full Text:: ://dx.doi.org/10.1094 / PDIS-08-12-0729-RE © 2013 The American Phytopathological Society 758 Plant Disease

Creator:: Crosslin, J. M., Hamm, P. B., Eggers, J. E., Rondon, Silvia I., Sengoda, V. G., and Munyaneza, J. E.
Abstract:: In August of 2011, potato (Solanum tuberosum) tubers grown in the lower Columbia Basin of southern Washington State and northern Oregon were observed with internal discolorations suggestive of zebra chip disease (ZC). Symptoms included brown spots, streaks, and stripes in and near the vascular tissue, typical of ZC (1). Symptoms...
Resource Type:: Article

Creator:: Parke, Jennifer L. and Gruenwald, Niklaus J.
Abstract:: Horticultural nurseries are heterogeneous and spatially complex agricultural systems, which present formidable challenges to management of diseases and pests. Moreover, nursery plants shipped interstate and internationally can serve as important vectors for pathogens and pests that threaten both agriculture and forestry. Current regulatory strategies to prevent this movement of pathogens...
Resource Type:: Article
Full Text:: . http://dx.doi.org/10.1094 / PDIS-11-11-0986-FE © 2012 The American Phytopathological Society Plant

Creator:: Yan, Guiping, Smiley, Richard W., and Okubara, Patricia A.
Abstract:: The root-lesion nematode Pratylenchus (hornet is one of the most important pests restricting productivity of wheat in the Pacific Northwest (PNW). It is laborious and difficult to use microscopy to count and identify the nematodes in soils. A SYBR Green I-based real-time polymerase chain reaction (PCR) assay was developed to...
Resource Type:: Article
Full Text:: address: guiping.yan@oregonstate.edu http://dx.doi.org/10.1094 / PHYTO-03-11-0093 © 2012 The American

Creator:: Hemphill, Delbert D. Jr and Jackson, T. L. (Thomas Lloyd), 1922-
Abstract:: Bush beans (Phaseolus vulgaris L.), carrots (Daucus carota L.), and lettuce (Lactuca sativa L.) were grown for 3 years on soils amended with S or lime and N fertilizer. Yields of all crops increased with lime application but response to N varied among crops and years. Lettuce head weight tended...
Resource Type:: Article
Full Text:: of the American Society for Horticultural Science Alexandria, Virginia 22314 J. Amer. Soc. Hart

Creator:: Henning, John A., Townsend, M. Shaun, and Kenny, Steven
Abstract:: Hop is a dioecious perennial with female plants grown commercially for brewing purposes. Parent selection in hop breeding on the basis of heterotic potential has not been reported in literature even though dominance has been reported in hops for several economically important traits. The objectives of this study were to...
Resource Type:: Article
Full Text:: re- printed with customary crediting of the source. American Society of Brewing Chemists, Inc., 2004

Creator:: Henning, J. H., Townsend, M. S., and Matthews, P.
Abstract:: Genetic information for male and female hop accessions is limited, hampering parental selection to maximize offspring productivity. Our objective was to determine whether amplified fragment length polymorphism (AFLP)-derived genetic distance (GD[subscript mm]) estimates and coancestry estimates from pedigrees (GS[subscript ped]) between parental pairs could be used to predict offspring performance....
Resource Type:: Article
Full Text:: crediting of the source. American Society of Brewing Chem- ists, 2010. 126 / Henning, J. H., Townsend

Creator:: Shock, Myrtle P., Shock, Clinton C., Feibert, Erik B. G., Shaw, Nancy L., Saunders, Lamont D., and Sampangi, Ram K.
Abstract:: Native grass, forb, and shrub seed is needed to restore rangelands of the U.S. Intermountain West. Fernleaf biscuitroot [Lomatium dissectum (Nutt.) Mathias & Constance] is a desirable component of rangelands. Commercial seed production is necessary to provide the quantity and quality of seed needed for rangeland restoration and reclamation efforts....
Resource Type:: Article
Full Text:: ; Soltis et al., 1997). Current State of Knowledge Lomatium dissectum was used by Native American

Creator:: Jackson, T. L. (Thomas Lloyd), 1922- and Reisenauer, H. M.
Abstract:: The western states include a complex combination of geological, topographical, climatic, and vegetative features. The region extends through 1900 km of latitude and contains three major north-south, storm-directing mountain systems. Most of the region is arid (annual precipitation < 50 em); however, sizeable agriculturally important areas west of the Cascade...
Resource Type:: Part of Book

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