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Genome-Wide Genetic Diversity among Components Does Not Cause Cultivar Blend Responses

^a Dep. of Plant Pathology, 351 Bessey Hall, Iowa State Univ., Ames, IA 50011
^b USDA-ARS Plant Sci. Research Unit, Dep. of Crop Sci., Box 7620, North Carolina State Univ., Raleigh, NC 27695-7620

View larger version (14K): [in a new window]   Fig. 1. Quadratic regression of negative values of Lin and Binns' superiority measure (-Pi) for grain yield on the heading date difference between component pure-line midseason-maturity oat cultivars.

View larger version (14K): [in a new window]   Fig. 2. Regression of negative values of Lin and Binns' superiority measure (-Pi) for test weight on the height difference between component pure-line midseason-maturity oat cultivars.

View larger version (14K): [in a new window]   Fig. 3. Regression of negative values of Lin and Binns' superiority measure (-Pi) for grain yield on the pedigree diversity (1–coefficient of parentage) between component pure-line midseason-maturity oat cultivars.

View larger version (14K): [in a new window]   Fig. 4. Regression of negative values of Lin and Binns' superiority measure (-Pi) for test weight on the pedigree diversity (1-coefficient of parentage) between component pure-line midseason-maturity cultivars.

View larger version (14K): [in a new window]   Fig. 5. Regression of negative values of Lin and Binns' superiority measure (-Pi) for grain yield on the AFLP-based genetic diversity (1–Dice coefficient) between component pure-line midseason-maturity cultivars.

View larger version (15K): [in a new window]   Fig. 6. Quadratic regression of the test weight blend response on the square of the pedigree diversity (1 - coefficient of parentage) between component pure-line early-maturity oat cultivars.

View larger version (13K): [in a new window]   Fig. 7. Regression of the grain yield blend response of 28 soybean cultivar blends on the coefficient of parentage of the cultivars used in the blends (Gizlice et al., 1989).

View larger version (13K): [in a new window]   Fig. 8. Regression of the grain yield blend response of stripe-rust-inoculated wheat cultivar blends on the coefficient of parentage of the cultivars used in the blends (Finckh and Mundt, 1992).