Abstract

‘NC‐Burton’ soybean [Glycine max (L.) Merr.] (Reg. No. CV‐504, PI 664026) was cooperatively developed and released by North Carolina State University (NCSU) and the North Carolina Agricultural Research Service, and it was first tested in North Carolina yield trials in 2003. NC‐Burton is a determinate, maturity‐group‐V, high‐yielding, conventional cultivar adapted to the northern and central regions of eastern North Carolina. It was derived from the cross of the high‐yielding line TN93‐99 and the soybean cyst nematode–resistant cultivar ‘Fowler’. In the NCSU breeding trials (11 environments), NC‐Burton averaged 3466 kg ha−1, or 441 kg ha−1 more than the check cultivar ‘5601T’ under full‐season conditions. In eight average‐ to high‐yield environments in the North Carolina Official Variety Trials, NC‐Burton had a significantly higher seed yield (4091 kg ha−1) than 5601T in narrow (19‐cm) row spacing. Seed protein content was lower but the oil content was similar to that of 5601T. NC‐Burton is resistant to stem canker (caused by Diaporthe phaseolorum var. meridionalis), frogeye leaf spot (caused by Cercospora sojina Hara), and bacterial pustule [caused by Xanthomonas campestris pv. glycines (Nakano) Dye].

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