Distribution Patterns of Indigenous Wheat Varieties in Northern Pakistan

  • Altafur Rehman Rao
Part of the Basic Life Sciences book series (BLSC, volume 8)


Phytogeographic distribution of genetic variability pertaining to eight characters recorded in 115 primitive wheat accessions of Triticum aestivum vulgare L. was studied by dividing the qualitative characters into two and the quantitative ones into five categories. The categories so devised were plotted on maps of the area of exploration. Clear-cut patterns of distribution emerged for the qualitative characters, i.e., disease reaction, awns, and the auricle color. However, the “single-character graphs” of quantitative characters showed a generally diffuse, but in some areas nonrandom, distribution for length of flag leaf, height of stem, and days to heading. Even less-pronounced geographic patterns emerged for length of ear and yield per plant. These investigations afford useful information for future expeditions.


Flag Leaf Quantitative Character Qualitative Character Disease Reaction Anthocyanin Pigmentation 
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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • Altafur Rehman Rao
    • 1
  1. 1.Department of BotanyUniversity of AgricultureLyallpurPakistan

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