Salma Zidane (Hiam Abbass), the proud, handsome 45-year-old Palestinian woman at the center of ''Lemon Tree,'' an allegory of Israeli-Palestinian strife, has the misfortune of living in the wrong place at the wrong time. Widowed for 10 years, with a son in the United States, Salma earns a meager living from a lemon grove on the Green Line separating Israel from the occupied territories of the West Bank. The grove has been in her family for 50 years. Her solitary life suddenly turns upside down when the Israeli defense minister, Israel Navon (Doron Tavory), moves into a fancy new house that abuts the grove. Overnight a watchtower is constructed, and security guards and soldiers begin patrolling the property. [ABSTRACT FROM PUBLISHER]