00967naa a2200145 a 450000100080000000500110000800800410001910000170006024501390007726000090021652004830022565000220070865000130073077300780074318372712019-02-20       1962    bl ---       0--  u    #d1 aKNOTT, D. R.  aThe inheritance of rust resistance. IX. The inheritance of resistance to races 15B and 56 of stem rust in the wheat variety Khapstein.  c1962  aThe inheritance of resistance to races 15B and 56 of stem rust was studied in the variety Khapstein which obtained its resistance from Khapli emmer. Khapstein was found to carry gene Sr7 which controls resistance to race 15B and two additional genes, one conditioning a type 2 reaction to race 56 and a 2+ – 3 reaction to race 15B, and a second controlling a striking, grey necrosis around pustules produced by race 56. The two have been designated Sr13 and Sr14 respectively.  aDoença de Planta  aFerrugem  tCanadian Journal of Plant Science, Ottawagv. 42, n. 3, p. 415-419, 1962.