Turfgrass Water Conservation Alliance
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Growing Green

Cultivar Plant Factors: moderating uncontrollable variance

3/28/2022

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Cultivar Plant Factor (CPF) proves an effective tool in defining and quantifying the term “drought tolerance” with relation to turfgrass evaluation. CPF methodology encourages performance-based selection relative to a known standard over broad geographic range.  CPF also moderates the impacts of over and under performance years. Correctly applied CPF methodology offers a powerful tool to water providers seeking to drive sustainable outdoor water conservation solutions.​

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TWCA Trial Showcases Research Innovations

3/18/2022

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TWCA trialing of Kentucky bluegrass concluded this week with Qualification of ten cultivars including the re-qualification of two standards, Mallard and Bedazzled. Not only does this latest round of qualifications reinforce the value of the TWCA Trialing program it also demonstrates the value of the latest round of innovations for turf trialing. This qualification is the culmination of several program process improvements including extending the trialing period, implementing the Date Evaluation and Statistical Analyst (DESA) role, and utilizing the Cultivar Plant Factor (CPF) methodology. The list of first includes:
  • First TWCA trial to run three years of data
  • First TWCA trial to release public reports
  • First trial to utilize the Cultivar Plant Factor as the primary evaluation methodology
  • First employment of the Data Evaluation and Statistical Analyst role
  • First Review Committee with a minority original participants
  • First TWCA trial to release Quality data to members
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The list of first includes:
  • First TWCA trial to run three years of data
  • First TWCA trial to release public reports
  • First trial to utilize the Cultivar Plant Factor as the primary evaluation methodology
  • First employment of the Data Evaluation and Statistical Analyst role
  • First Review Committee with minority original participants
  • First TWCA trial to release Quality data to members

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    Program Administrator

    Jack Karlin is the Program Administrator for TWCA. His interest is in using policy and the built environment to create livable and sustainable communities.
    ​ He has an awful little dog and a family he loves very much.  

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Ste 160 #288
Corvallis OR 97330

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  • Home
    • Growing Green
    • Irrigation Calculator
    • Contact
  • MEMBERSHIP
    • Members Benefits >
      • TWCA Logos
      • NGBS Green Partner
      • MWELO Calculator
      • Simple Tips
      • Bylaws
      • TWCA Quarterly
    • Become a Member >
      • Membership Agreement
    • Our Members >
      • Seed Producers
      • Industry
      • Cooperators
      • Research Review Committee
  • Qualified Products
    • Qualified Products
    • Qualification >
      • Trialing
      • TWCA Regions