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Availability and Analysis of Proprietary Dent Corn Inbred Lines with Expired U.S. Plant Variety Protection

Dep. of Crop Sciences and Roy J. Carver Biotechnology Center, Univ. of Illinois, 901 S. Mathews Ave., Urbana, IL 61801 and Maize Lineage LLC, 3408 Mill Creek Ct., Champaign, IL 61822

View larger version (59K): [in a new window]   Fig. 1. Stiff Stalk Lines with expired Plant Variety Protection. Public inbreds are noted by standard station release prefix. The PVPA lines with expired protection are shown in shaded boxes. Proprietary lines are from Asgrow Seed, DEKALB Genetics (DK), FFR Cooperative, Illinois Foundation Seeds (FR), Edward J. Funk & Son, Holden's Foundation Seeds (LH), Pfister Hybrid Seed, Claeys Semences, Novartis Seeds (NK), DowElanco, and Pioneer Hi-Bred International (PH). Arrow originates at parent and points to progeny. Pedigree derivation for each line is determined from Plant Variety Protection Act (PVPA) certificates referenced in Table 1, except where noted. Smith et al., 1997; PVPA certificate number 8800152; ¶PVPA certificate number 9500208; #Gerdes et al., 1993; PVPA certificate number 8700214; PVPA certificate number 9500211; PVPA certificate number 8700036; ¶¶PVPA certificate number 8700173.

View larger version (54K): [in a new window]   Fig. 2. Non-Stiff Stalk Lines with expired Plant Variety Protection. Public inbreds are noted by standard station release prefix. The PVPA lines with expired protection are shown in shaded boxes. Proprietary lines are from Asgrow Seed, J.C. Robinson Seed (JCR), DEKALB Genetics (DK), Holden's Foundation Seeds (LH), Iowa State, Novartis Seeds (NK), Pioneer Hi-Bred International (PH), Quality Research Associates, and Rothermel Seed. Arrow originates at parent and points to progeny. Pedigree derivation for each line is determined from Plant Variety Protection Act (PVPA) certificates referenced in Table 1, except where noted. Smith et al., 1997; Gerdes et al., 1993; ¶Smith and Smith, 1987; #PVPA certificate number 9800383; PVPA certificate number 8700197.