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Filtering by: Creator Dickson, David J. Remove constraint Creator: Dickson, David J. Academic Affiliation Crop and Soil Science Remove constraint Academic Affiliation: Crop and Soil Science Rights Statement Copyright Not Evaluated Remove constraint Rights Statement: Copyright Not Evaluated Commencement Year Unknown Remove constraint Commencement Year: Unknown

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Dynamics of ammonia oxidizing archaea and bacteria populations and contributions to soil nitrification potentials

Creator:

Taylor, Anne E., Zeglin, Lydia H., Wanzek, Thomas A., Myrold, David D., and Bottomley, Peter J.

Abstract:

It is well known that the ratio of ammonia oxidizing archaea (AOA) and bacteria (AOB) ranges widely in soils, but no data exist on what might influence this ratio, its dynamism, or how changes in relative abundance influences the potential contributions of AOA and AOB to soil nitrification. By sampling...

Resource Type:

Article

Full Text:

. Taylor1*, Lydia H. Zeglin1, Thomas A. Wanzek1, 3 David D. Myrold1, and Peter J. Bottomley1,2 4
Use of aliphatic n-alkynes to discriminate soil nitrification activities of ammonia-oxidizing thaumarchaea and bacteria

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

Full Text:

. Taylora#, Neeraja Vajralab, Andrew T. Giguerea, Alix I. Gitelmanc, Daniel J. Arpb, David D. Myrolda
Non-burning techniques of grass seed residue removal

Creator:

Chilcote, David O., Youngberg, Harold Wayne, 1929-, and Oregon State University. Extension Service

Resource Type:

Technical Report

Full Text:

/ Creeping red fescue 100 88 78 Orchardgrass 100 98 84 Merion bluegrass 100 95 69 Perennial ryegrass J 100
Registration of ‘Teamaker’ Hop

Creator:

Henning, John A., Haunold, Alfred, Townsend, M. Shaun, Gent, David H., and Parker, Thomas B.

Abstract:

’Teamaker’ hop (Humulus lupulus L.) (Reg. No. CV-28, PI 558864) was developed by the USDA-ARS as a unique, nonbittering, high beta-acids hop and was released on 26 June 2006. The defining characteristics of Teamaker are its near-zero percent alpha acids levels—a distinctive condition in the Humulus species (Haunold et al.,...

Resource Type:

Article

Full Text:

. Henning,* Alfred Haunold, M. Shaun Townsend, David H. Gent, and Thomas B. Parker J.A. Henning, A. Haunold
QTL mapping of powdery mildew susceptibility in hop (Humulus lupulus L.)

Creator:

Henning, John A., Townsend, M. Shaun, Gent, David H., Bassil, Nahla, Matthews, Paul, Buck, Emily, and Beatson, Ron

Abstract:

Hop powdery mildew [Podosphaera macularis (Wallr.) U. Braun & S. Takam.] is best controlled via the production of resistant varieties. Recent evidence supports selection against plant susceptibility genes to fungal pathogens as a more durable resistance mechanism than selection for resistance genes. The objective of this study was to identify...

Resource Type:

Article

Full Text:

• M. Shaun Townsend • David H. Gent • Nahla Bassil • Paul Matthews • Emily Buck • Ron Beatson
Rillenkarren at Vayia: geomorphology and a new class of Early Bronze Age fortified settlement in Southern Greece

Creator:

Tartaron, Thomas F., Pullen, Daniel J., and Noller, Jay S.

Abstract:

With ever more inhibited programmes of excavation, new methods of site survey are always welcome. Here a soil geomorphologist joins forces with archaeologists to read the history of limestone blocks exposed on the surface at sites in southern Greece. Rillenkarren for example are vertical grooves caused by rainfall on stones...

Resource Type:

Article

Full Text:

Tartaron, Thomas F. Pullen, Daniel J. Noller, Jay S
Screening for Resistance of Potato Lines to the Potato Tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)

Creator:

Rondon, Silvia I., Brown, Charles R., and Marchosky, Ruben

Abstract:

The potato tuberworm, Phthorimaea operculella (Zeller) (PTW), is one of the most important limitations to potato, Solanum tuberosum L., productivity worldwide. Leaves, stems, petioles and more importantly, potato tubers, in the field and storage can be seriously affected. Due to the relatively recent arrival of the PTWin the United States...

Resource Type:

Article

Full Text:

97838, USA e-mail: silvia.rondon@oregonstate.edu C. R. Brown USDA-ARS, Prosser, WA, USA Am. J. Potato
2006 Seed production research at Oregon State University, USDA-ARS cooperating

Creator:

United States. Agricultural Research Service, Oregon State University. Department of Crop Science, and Young, William C.

Resource Type:

Other

Full Text:

, undergraduate student Hermiston Experiment Station N.L. David, Plant Pathology Research Manager P.B
2007 Seed production research at Oregon State University, USDA-ARS cooperating

Creator:

United States. Agricultural Research Service, Oregon State University. Department of Crop Science, and Young, William C.

Resource Type:

Other

Full Text:

Experiment Station N.L. David, former Plant Pathology Research Manager P.B. Hamm, Superintendant and
1984 Seed production research at Oregon State University, USDA-ARS cooperating

Creator:

United States. Agricultural Research Service, Oregon State University. Department of Crop Science, and Youngberg, Harold W.

Resource Type:

Other

Full Text:

Summary, Growth Retardants in Grass Seed Crops 25 Research Faculty and Staff 27 22 11/84 J

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Academic Affiliation

Crop and Soil Science[remove]36

Creator

United States. Agricultural Research Service25
Oregon State University. Department Of Crop Science24
Young, William C.19
Youngberg, Harold W.6
Oregon State University. Agricultural Experiment Station3
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Date

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Current results range from 1975 to 2013

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2010-20197
2000-200912
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1980-19895
1970-19791

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pdf3

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English [eng]36

Peer Reviewed

Yes6
No1

Resource Type

Other25
Article6
Technical Report5

Rights Statement

Copyright Not Evaluated[remove]36

Subject

Grass seed industry -- Oregon25
Grasses -- Seeds -- Research -- Oregon25
Seed industry and trade -- Oregon25
Seed technology -- Oregon25
Seeds -- Research -- Oregon25
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