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Heritabilities and Correlations of Fusarium Ear Rot Resistance and Fumonisin Contamination Resistance in Two Maize Populations

^a Dep. of Plant Pathology and Dep. of Crop Science, North Carolina State Univ., Raleigh, NC 27695-7620
^b Dep. of Crop Sciences, Univ. of Illinois, Urbana-Champaign, IL 61801
^c Dep. of Plant Pathology, North Carolina State Univ., Raleigh, NC 27695-7567
^d USDA-ARS National Center for Agric. Utilization Research, 1815 N. University St., Peoria, IL 61604
^e USDA-ARS, Plant Science Research Unit, Dep. of Crop Science, North Carolina State Univ., Raleigh, NC 27695-7620

View larger version (13K): [in a new window]   Fig. 1. Distribution of Fusarium ear rot severity among GEFR families. Values represent entry means across all environments. Parent line GE440 is represented by the letter a, and parent line FR1064 is represented by the letter b.

View larger version (15K): [in a new window]   Fig. 2. Distribution of Fusarium ear rot severity among NCB recombinant inbred lines. Values represent entry means across all environments. Parent line NC300 is represented by the letter c, and parent line B104 is represented by the letter d.

View larger version (17K): [in a new window]   Fig. 3. Distribution of fumonisin concentration among GEFR families. Values represent back-transformed entry means across all environments. Parent line GE440 is represented by the letter a, and parent line FR1064 is represented by the letter b.

View larger version (16K): [in a new window]   Fig. 4. Distribution of fumonisin concentration among NCB recombinant inbred lines. Values represent back-transformed entry means across all environments. Parent line NC300 is represented by the letter c, and parent line B104 is represented by the letter d.

View larger version (12K): [in a new window]   Fig. 5. Scatter diagram of individual plot values of Fusarium ear rot severity and transformed fumonisin concentration in the NCB population in 2002 and 2003. Darker points indicate 10 recombinant inbred lines with the lowest entry mean fumonisin concentrations across all environments. Fumonisin (concentration) represents square root transformed data and fumonisin (µg g–1) represents back-transformed data.

View larger version (17K): [in a new window]   Fig. 6. Scatter diagram of individual plot values of Fusarium ear rot severity and transformed fumonisin concentration in the GEFR population in 2002 and 2003. Darker points indicate 10 families with the lowest entry mean fumonisin concentration across all environments. Fumonisin (concentration) represents natural log transformed data and fumonisin (µg g–1) represents back-transformed data.