The board shall adopt general regulations concerning the conditions of probation which apply in the absence of specific conditions imposed by the court. All probationers are subject to supervision of the board unless otherwise specifically ordered by the court in the particular case. Nothing in the Probation and Parole Act limits the authority of the court to impose or modify any general or specific condition of probation. The board may recommend and by order the court may impose and modify any conditions of probation. The court shall transmit to the board and to the probationer a copy of any order.