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  1. No Access

    Article

    High resolution in situ rhizosphere imaging of root growth dynamics in oilseed castor plant (Ricinus communis L.) using digital scanners

    High resolution computer imaging was developed to evaluate the root dynamics of a biofuel plant—castor bean in a plastic container. Root growth dynamics of the plant was evaluated to determine root and root ha...

    Kamrun Nahar, W. L. Pan in Modeling Earth Systems and Environment (2019)

  2. No Access

    Article

    Development of Dryland Oilseed Production Systems in Northwestern Region of the USA

    This report addresses the development of dryland oilseed crops to provide feedstock for production of biofuels in semi-arid portions of the northwestern USA. Bioenergy feedstocks derived from Brassica oilseed cro...

    D. S. Long, F. L. Young, W. F. Schillinger, C. L. Reardon… in BioEnergy Research (2016)

  3. No Access

    Article

    Soil microbial activity, aggregation and nutrient responses to straw pul** liquor in corn crop**

    The cereal and grass seed crop** systems of the Pacific northwestern USA generate a valuable fiber source for papermaking. Pul** straw with KOH produces black liquor, an organic waste effluent with potenti...

    C. **ao, R. Stevens, M. Fauci, R. Bolton, M. Lewis… in Biology and Fertility of Soils (2007)

  4. No Access

    Article

    Chemical alteration of the rhizosphere of the mycorrhizal-colonized wheat root

    Plexiglass pot growth chamber experiments were conducted to evaluate the chemical alterations in the rhizosphere of mycorrhizal wheat roots after inoculation with Glomus intraradices [arbuscular mycorrhizal fungu...

    Munir J. Mohammad, W. L. Pan, A. C. Kennedy in Mycorrhiza (2005)

  5. No Access

    Article

    Seasonal mycorrhizal colonization of winter wheat and its effect on wheat growth under dryland field conditions

     A field experiment was conducted to determine the seasonal patterns of arbuscular mycorrhiza (AM) in a dryland winter wheat (Triticum aestivum L.) system and to determine wheat growth and P uptake responses to i...

    M. J. Mohammad, W. L. Pan, A. C. Kennedy in Mycorrhiza (1998)

  6. No Access

    Article

    Portable rhizotron and color scanner system for monitoring root development

    Rhizotrons allow the examination of spatial and temporal in situ root development. Permanent rhizotron installations provide 2-D images of whole root profiles, but their immobility limits the number of soil-pl...

    W.L. Pan, R.P. Bolton, E.J. Lundquist, L.K. Hiller in Plant and Soil (1998)

  7. No Access

    Article

    Ammonium and nitrate uptake by barley genotypes in diurnally fluctuating root temperatures simulating till and no-till conditions

    The morphological development and N uptake patterns of spring barley (Hordeum vulgare L.) genotypes of Northern European (Nordic) and Pacific Northwest US (PNW) origin were compared under two diurnally fluctuatin...

    W. L. Pan, B. A. Tillman, S. E. Ullrich in Plant and Soil (1991)

  8. No Access

    Article

    Plant development, and N and P use of winter barley

    Winter barley (Hordeum vulgare L. cv. ‘Kamiak’) was grown at three landscape positions of a representative toposequence in the Palouse region of eastern Washington. This region is typified by rolling topography m...

    W. L. Pan, A. G. Hopkins in Plant and Soil (1991)

  9. No Access

    Article

    Plant development, and N and P use of winter barley

    Winter barley (Hordeum vulgare L. cv. ‘Kamiak’) was grown at three landscape positions of a representative toposequence in the Palouse region of eastern Washington, US. This area is typified by rolling topography...

    W. L. Pan, A. G. Hopkins in Plant and Soil (1991)

  10. No Access

    Chapter

    Morphology, root conductivity, and mineral accumulation of Northwest U.S. tree species in response to acid deposition in artificial soil

    The mechanisms of long-term acid rain effects on tree growth have been difficult to elucidate due to the complexity of altered soil processes under acid stress. A solid rooting medium was developed for studyin...

    W. L. Pan, R. A. Black, J. B. Harsh, J. H. Bassman… in Plant-Soil Interactions at Low pH (1991)

  11. No Access

    Article

    Aluminum inhibition of shoot lateral branches ofGlycine max and reversal by exogenous cytokinin

    Aluminum effects on the morphological development of soybean (Glycine max (L.) Merr.) were characterized in greenhouse and growth chamber experiments. An Al-sensitive cultivar, ‘Ransom’, was grown in an acid soil...

    W. L. Pan, A. G. Hopkins, W. A. Jackson in Plant and Soil (1989)

  12. No Access

    Article

    Partitioning of reduced nitrogen derived from exogenous nitrate in maize roots: Initial priority for protein synthesis

    When roots of five day-old maize seedlings were exposed to15N-nitrate, a constant (25–29%) proportion of the reduced15N derived from the entering15N-nitrate accumulated as insoluble15N nitrogen. Constancy was est...

    M. A. Morgan, W. A. Jackson, W. L. Pan, R. J. Volk in Plant and Soil (1986)

  13. No Access

    Chapter

    Partitioning of reduced nitrogen derived from exogenous nitrate in maize roots: Initial priority for protein synthesis

    When roots of five day-old maize seedlings were exposed to 15N-nitrate, a constant (25–29%) proportion of the reduced 15N derived from the entering 15N-nitrate accumulated as insoluble 15N nitrogen. Constancy was...

    M. A. Morgan, W. A. Jackson, W. L. Pan… in Fundamental, Ecological and Agricultural A… (1986)