Increasing sugar content in silage maize stalk improves forage quality and palatability. However, the mechanism of inheritance of stalk sugar content in maize has not been clear yet. To this end, joint analysis of a mixed genetic model of both major gene and polygene was conducted to investigate the inheritance of stalk sugar content in maize. Maize inbred lines YXD053 (high sugar content, Brix = 11.32%), 98A-04 (high sugar content, Brix = 10.69%), and Y6-1 (low sugar content, Brix = 6.3%) were used as pare...