Joffe, A.Z., Dept. of Botany, The Hebrew University of Jerusalem, Jerusalem, Israel Palti, J., ARO, The Volcani Center, Bet Dagan, Israel Arbel-Sherman, R., Dept. of Botany, The Hebrew University of Jerusalem, Jerusalem, Israel
Joffe, A.Z., Dept. of Botany, The Hebrew University of Jerusalem, Jerusalem, Israel Palti, J., ARO, The Volcani Center, Bet Dagan, Israel Arbel-Sherman, R., Dept. of Botany, The Hebrew University of Jerusalem, Jerusalem, Israel