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Resource Allocation in a Breeding Program for Phosphorus Concentration in Maize Grain

^a Dep. of Agronomy, Iowa State Univ., Ames, IA 50011
^b Dep. of Agronomy and Horticulture, 279 Plant Science Bldg., Univ. of Nebraska-Lincoln, Lincoln, NE 68583-0915

View larger version (10K): [in a new window]   Fig. 1. Distribution of S1 family BLUP (best linear unbiased predictor) values for P concentration in maize grain (P-Gr) across 2000 and 2001. The S1 families were randomly generated from the F2 sibbed generation of the cross between the Illinois High Protein and Illinois Low Protein populations.

View larger version (13K): [in a new window]   Fig. 2. Effects of number of years (y), replications per year (r), and ears sampled per plot (n) on the broad-sense heritability among S1 family means 1 for P concentration in maize grain.