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  • varieties
  • Reduction division and haploid chromosome number of several species and varieties of Triticum were studied in haematoxylin-stained microtome sections (16- 18 μ) after Bouin Allen fixation. (wur.nl)
  • crop
  • P. tritici-repentis survives and overwinters as pseudothecia on stubble from the previous year's infected crop. (wikipedia.org)