00468naa a2200121 a 450000100080000000500110000800800410001910000200006024501400008026000090022070000220022977300950025118260222010-01-10 1972 bl --- 0-- u #d1 aROCHA, M. A. B. aSome problems of wheat production in Brazil and the role the international winter wheat performance nursery may play in their solution. c19721 aSCHLEHUBER, A. M. tMiscellaneus Publication, Nebraska Agricultural Experiment Station, 28A, p. 272-278, 1972.