World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
41
Citations
7518
World Ranking
3645
National Ranking
917

Overview

What is he best known for?

The fields of study he is best known for:

  • Agronomy
  • Agriculture
  • Botany

Richard W. Smiley mainly focuses on Agronomy, Root rot, Tillage, Rhizoctonia and Pratylenchus. Richard W. Smiley has researched Agronomy in several fields, including Natural enemies and Fusarium. To a larger extent, he studies Horticulture with the aim of understanding Root rot.

His Tillage study combines topics in areas such as Crop residue, Rhizoctonia solani and Crop rotation. He interconnects Cereal cyst nematode, Heterodera, Xiphinema and Pratylenchus thornei in the investigation of issues within Pratylenchus. His Poaceae research includes elements of Inoculation, Fungi imperfecti, Crown and Bipolaris.

His most cited work include:

  • THE AMERICAN PHYTOPATHOLOGICAL SOCIETY (873 citations)
  • Compendium of Turfgrass Diseases (243 citations)
  • Insights into the prevalence and management of soilborne cereal pathogens under direct seeding in the Pacific Northwest, U.S.A. (161 citations)

What are the main themes of his work throughout his whole career to date?

His main research concerns Agronomy, Horticulture, Cultivar, Poaceae and Pratylenchus neglectus. The study incorporates disciplines such as Heterodera avenae and Pratylenchus in addition to Agronomy. His studies in Horticulture integrate themes in fields like Botany, Crown and Soil water.

His studies deal with areas such as Fungi imperfecti, Fungicide, Leaf spot and Crop as well as Poaceae. His research in Pratylenchus neglectus intersects with topics in Crop yield and Pratylenchus thornei. His studies in Root rot integrate themes in fields like Pythium, Rhizoctonia and Sowing.

He most often published in these fields:

  • Agronomy (69.57%)
  • Horticulture (23.91%)
  • Cultivar (22.83%)

What were the highlights of his more recent work (between 2010-2020)?

  • Agronomy (69.57%)
  • Cultivar (22.83%)
  • Heterodera avenae (19.57%)

In recent papers he was focusing on the following fields of study:

Agronomy, Cultivar, Heterodera avenae, Pratylenchus and Pratylenchus neglectus are his primary areas of study. Richard W. Smiley has researched Agronomy in several fields, including Fusarium culmorum and Postharvest. Richard W. Smiley usually deals with Cultivar and limits it to topics linked to Sowing and Yield, Crop yield and Anthesis.

His Heterodera avenae research is multidisciplinary, incorporating perspectives in Hordeum vulgare, Botany and Cereal cyst nematode. His research on Pratylenchus also deals with topics like

  • Cropping together with Abundance, Tillage, Crop rotation and Legume,
  • Soil test and related Organic matter, Precision agriculture, Edaphic and No-till farming. The study incorporates disciplines such as Brassica, Camelina and Thistle in addition to Pratylenchus neglectus.

Between 2010 and 2020, his most popular works were:

  • Detection and quantification of Pratylenchus thornei in DNA extracted from soil using real-time PCR. (50 citations)
  • Identification of quantitative trait loci (QTL) for resistance to Fusarium crown rot (Fusarium pseudograminearum) in multiple assay environments in the Pacific Northwestern US (43 citations)
  • Developing a Real-Time PCR Assay for Detection and Quantification of Pratylenchus neglectus in Soil (40 citations)

In his most recent research, the most cited papers focused on:

  • Agronomy
  • Agriculture
  • Botany

His primary areas of study are Agronomy, Internal transcribed spacer, Nematode, Pratylenchus and Heterodera avenae. The Agronomy study combines topics in areas such as Developing country and Fusarium. The concepts of his Nematode study are interwoven with issues in Spirotetramat, Postharvest and Reproduction.

Richard W. Smiley works mostly in the field of Heterodera avenae, limiting it down to concerns involving Cereal cyst nematode and, occasionally, Nematology, Avena sterilis, Hordeum vulgare and Crop. Pratylenchus neglectus is closely connected to Horticulture in his research, which is encompassed under the umbrella topic of Potato cyst nematode. In the field of Botany, his study on Heterodera filipjevi overlaps with subjects such as Ribosomal DNA.

Best Publications

  • Compendium of Turfgrass Diseases

    Richard W. Smiley;Peter H. Dernoeden;Bruce B. Clarke

  • Crop Damage Estimates for Crown Rot of Wheat and Barley in the Pacific Northwest.

    Richard W Smiley;Jennifer A Gourlie;Sandra A Easley;Lisa-Marie Patterson

  • Compendium of wheat diseases and pests.

    W. W. Bockus;R. L. Bowden;R. M. Hunger;T. D. Murray

  • Insights into the prevalence and management of soilborne cereal pathogens under direct seeding in the Pacific Northwest, U.S.A.

    Timothy C. Paulitz;Richard W. Smiley;R. James Cook

  • Pathogenic fungi associated with Fusarium foot rot of winter wheat in the semiarid Pacific Northwest

    R. W. Smiley;L. M. Patterson

  • Soil C and N changes under tillage and cropping systems in semi-arid Pacific Northwest agriculture

    P.E Rasmussen;S.L Albrecht;R.W Smiley

  • Nematodes which Challenge Global Wheat Production

    Richard W. Smiley;Julie M. Nicol

  • Pathogenicity of Fungi Associated with the Wheat Crown Rot Complex in Oregon and Washington.

    Richard W. Smiley;Jennifer A. Gourlie;Sandra A. Easley;Lisa-Marie Patterson

  • Influence of glyphosate on Rhizoctonia root rot, growth, and yield of barley

    R.W. Smiley;A.G. Ogg;R.J. Cook

  • Relationship Between Take-all of Wheat and Rhizosphere pH in Soils Fertilized with Ammonium vs. Nitrate-Nitrogen

    Unknown

  • Rhizosphere pH as Influenced by Plants, Soils, and Nitrogen Fertilizers1

    Unknown

  • Diseases of wheat in long-term agronomic experiments at Pendleton, Oregon.

    R. W. Smiley;H. P. Collins;P. E. Rasmussen

  • Identification of quantitative trait loci (QTL) for resistance to Fusarium crown rot (Fusarium pseudograminearum) in multiple assay environments in the Pacific Northwestern US.

    G. J. Poole;G. J. Poole;R. W. Smiley;T. C. Paulitz;C. A. Walker

  • Detection and Discrimination of Pratylenchus neglectus and P. thornei in DNA Extracts from Soil

    Guiping Yan;Richard W Smiley;Patricia A Okubara;Andrea Skantar

  • Nematodes in dryland field crops in the semiarid pacific northwest United States.

    Richard W. Smiley;Kathy Merrifield;Lisa-Marie Patterson;Ruth G. Whittaker

  • Detection and quantification of Pratylenchus thornei in DNA extracted from soil using real-time PCR.

    Guiping Yan;Richard W Smiley;Patricia A Okubara

  • Influence of tillage and nitrogen fertilizer on Rhizoctonia root rot (bare patch) of winter wheat.

    F. V. Pumphrey;D. E. Wilkins;D. C. Hane;R. W. Smiley

  • Yield and Water-Use Efficiency of Eight Wheat Cultivars Planted on Seven Dates in Northeastern Oregon

    Chengci Chen;William A. Payne;Richard W. Smiley;Michael A. Stoltz

  • Economic impact of Hessian fly (Diptera: Cecidomyiidae) on spring wheat in Oregon and additive yield losses with Fusarium crown rot and lesion nematode

    Richard W. Smiley;Jennifer A. Gourlie;Ruth G. Whittaker;Sandra A. Easley

  • Suppression of Wheat Growth and Yield by Pratylenchus neglectus in the Pacific Northwest.

    Richard W. Smiley;Ruth G. Whittaker;Jennifer A. Gourlie;Sandra A. Easley

  • Long-term management effects on soil productivity and crop yield in semi-arid regions of Eastern Oregon

    Paul E. Rasmussen

  • Crop sequences for managing cereal cyst nematode and fungal pathogens of winter wheat

    R. W. Smiley;R. E. Ingham;W. Uddin;G. H. Cook

Frequent Co-Authors

Timothy C. Paulitz
Timothy C. Paulitz United States Department of Agriculture
David R. Huggins
David R. Huggins Washington State University
Paul H. Williams
Paul H. Williams University of Wisconsin–Madison
John T. Abatzoglou
John T. Abatzoglou University of California, Merced
Arron H. Carter
Arron H. Carter Washington State University
Abdelfattah A. Dababat
Abdelfattah A. Dababat International Maize and Wheat Improvement Center
Scot H. Hulbert
Scot H. Hulbert Washington State University
Mark Mazzola
Mark Mazzola Stellenbosch University
Robert L. Bowden
Robert L. Bowden US Department of Agriculture
Sergei A. Subbotin
Sergei A. Subbotin California Department of Food and Agriculture

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