Bag limits, seasons, and links to the regs are included in the sticky at the top of the migratory forum. "not more than two morning doves" would clearly mean your not allowed more than two morning doves per day those weekends.
Special White-winged Dove Area
Sept. 3-4, 10-11, Sept. 23 – Nov. 9, Dec. 17 – Jan. 23, 2017.
During the early two weekends in the Special White-winged Dove Area, hunting is allowed only in the afternoon and the daily bag limit is 15 birds, to include not more than two mourning doves and two white-tipped doves. During the general season opens, the aggregate bag limit is 15 with no more than two white-tipped doves.