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Optimizing Pollen Confinement in Maize Grown for Regulated Products

^a Univ. of Missouri-Delta Center, 147 State Hwy. T, P.O. Box 160, Portageville, MO 63873
^b 1870 Oxborough Ct., Chesterfield, MO 63017
^c Monsanto Company, 800 N. Lindbergh Blvd., St. Louis, MO 63167

View larger version (156K): [in a new window]   Fig. 1. Aerial view of pollen confinement research field at Hayti, MO, in 2001.

View larger version (122K): [in a new window]   Fig. 2. Pollen source blocks were planted to model a possible pharmaceutical or industrial maize production system with four rows of a nondetasseled male white kernel inbred alternated with four rows of varying detasseled females which were treatment-specific yellow isoline inbreds.

View larger version (131K): [in a new window]   Fig. 3. A 3-by-3 latin square design was used in white hybrid trap blocks with individual plots having planting dates relative to the planting date of the yellow maize pollen source block to assure pollen synchronization and equal pollen competition for each planting date.