Search Constraints

Start Over
Filtering by: Creator Kira, M. Remove constraint Creator: Kira, M. Committee Member Appleby, Arnold Remove constraint Committee Member: Appleby, Arnold

Search Results

  • The effects of density and proportion on spring wheat and Lolium multiflorum Lam

    Creator:
    Concannon, Julie Ann
    Abstract:
    This thesis consists of four chapters. Literature is reviewed in Chapter 1. Chapter 2 describes an addition series experiment to determine the influence of species density and proportion on vegetative and reproductive yield of spring wheat and Lolium multiflorum. Chapter 3 consists of a growth analysis experiment to determine whether...
    Resource Type:
    Masters Thesis
    Full Text:
    . Shinozaki and Kira (1956) established a yield-density relationship between reciprocal plant weight and

  • The population dynamics and growth of salmonberry (Rubus spectabilis) and thimbleberry (Rubus parviflorus)

    Creator:
    Maxwell, Bruce D.
    Abstract:
    Salmonberry (Rubus spectabilis) and thimbleberry (Rubus parviflorus) are clonal shrub species common to reforestation sites in the Oregon Coast Range. These species have economic importance, because they reduce conifer seedling growth and survival. A population modeling approach was used to facilitate study of the biology of these species and to...
    Resource Type:
    Dissertation
    Full Text:
    (Shinozaki and Kira, 1956; Watkinson, 1980; White, 1980; White and Harper, 1970; Yoda et al., 1963). White

  • Models of a four-species annual weed community : growth, competition, and community dynamics

    Creator:
    Roush, Mary Lynn
    Abstract:
    Models of weed communities aid in the development of weed management strategies and elucidate the processes and mechanisms that regulate plant populations and communities. A conceptual weed community model was developed to organize key regulatory life-history processes. Specific investigations focused on the processes of plant growth and competition, and relationships...
    Resource Type:
    Dissertation
    Full Text:
    -CROP ASSOCIATIONS: INTENSITY OF COMPETITION. M. L. Roush and S.R. Radosevich ABSTRACT Competition