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This article in CS

  1. Vol. 46 No. 5, p. 2008-2012
    Received: Sept 29, 2005

    * Corresponding author(s): wts@ksu.edu


Genotype and Environment Effects on Adhesive Shear Strength in Soybean-Based Adhesives

  1. Maria E. Stolla,
  2. William T. Schapaugh *a,
  3. M. Silvina Zutarab,
  4. Jie Hub and
  5. X. Susan Sunb
  1. a Dep. of Agronomy, Kansas State Univ., Manhattan, KS 66506
    b Dep. of Grain Science, Kansas State Univ., Manhattan, KS 66506


Soybean [Glycine max (L.) Merr.] adhesives developed from seed protein provide a safe, renewable alternative to petroleum-based adhesives. The quality of many products made from soybean seed components is influenced by genotype and environment. Research has not addressed genotype and environment effects on adhesive quality. The objective of this study was to determine if genotype and environment affect adhesive shear strength in soybean. Twenty-two genotypes were grown in replicated plots at six Kansas locations over 2 yr. Protein was isolated from ground seed harvested from each plot. A protein-water mixture was used to glue wood boards together. Shear strength, the force needed to pull the wood apart, was measured. Shear strength means, averaged over all six environments, ranged from 3.71 to 3.22 MPa for the genotype producing the strongest and weakest adhesives, respectively. PI437401 had significantly less mean shear strength than did the twelve top-ranked genotypes in the test. Environment and genotype by environment effects on shear strength were not significant. Significant shear strength differences found among entries indicate that genotype should be a consideration when developing soybean-based adhesives.

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