If no applicants emerge by January 21 to manage a state-owned casino in southeast Kansas, the deadline will be extended to April 21.The Kansas Lottery Commission agreed Wednesday to the extension. “Right now we have no applicants,” spokeswoman Sally Lunsford. In a failed first round of bidding last year, Penn National, which owns Argosy Casino Hotel & Spa in Riverside and other US casinos, was the lone bidder for the designated gambling zone in the state’s southeast corner.