‘Norman’ is the third cultivar released from the University of Arkansas blueberry breeding program, which began in the late 1970s and has involved cooperative efforts with the U.S. Department of Agriculture (USDA). Previous cultivars released from this breeding program were ‘Ozarkblue’ (Clark et al., 1996) and ‘Summit’ (Clark and Moore, 1999). ‘Norman’ is named in honor of Dr. James Norman Moore, who began the Arkansas fruit breeding program in 1964 and led the program for 33 years. ‘Norman’ is a southern highbush (Vaccinium spp.) cultivar with yield comparable to ‘Bluecrop’, ‘Ozarkblue’, and ‘Summit’. Fruit size is comparable to ‘Ozarkblue’ and larger than ‘Bluecrop’ and its firmness is superior to ‘Bluecrop’, ‘Ozarkblue’, and ‘Summit’. ‘Norman’ ripens 5 d after ‘Bluecrop’ and 8 d before ‘Ozarkblue’. Plants of ‘Norman’ have an estimated chilling requirement of 600 h (hours below 7 °C), which is lower than that for ‘Bluecrop’ and ‘Ozarkblue’.
Clark, J.R. & Moore, J.N. 1999 ‘Ozarkblue’ and ‘Summit’ southern highbush blueberries, p. 18–21. In: J.R. Clark and M.D. Richardson (eds.). Horticultural studies—1998. Ark. Agr. Expt. Sta. Res. Serv. 466
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Hart, J., Strik, B., White, L. & Yang, W. 2006 Nutrient management for blueberries in Oregon. Oregon State Univ. Ext. Serv. Pub., EM 8918. 5 May 2015. <http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/20444/em8918.pdf?sequence=3>.
Strik, B.C., Brun, C., Ahmedullah, M., Antonelli, A., Askham, L., Barney, D., Bristow, P., Fisher, G., Hart, J., Havens, D., Ingham, R., Kaufman, D., Penhallegon, R., Pscheidt, J., Scheer, B., Shanks, C. & William, R. 1993 Highbush blueberry production. Oregon State Univ. Ext. Serv. Pub. PNW 215
USDA Plant Hardiness Zone Map 2012 Agr. Res. Serv., U.S. Dept. Agr., Washington, DC. 22 Jan. 2018. <http://planthardiness.ars.usda.gov>.