The AP reports: The Nets will play most or all of the 2009-10 N.B.A. season in New Jersey instead of in their new arena in Brooklyn, a team spokesman said Thursday. The spokesman, Barry Baum, said the Nets could begin the 2009-10 season at the Izod Center in East Rutherford, N.J., and then move to Brooklyn in the first half of 2010. The Nets had planned to play in their new arena starting in 2009. But in October, the Nets’ principal owner, Bruce Ratner, said the arena, to be called the Barclays Center, probably would not be ready by the start of that season.