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Natural and Induced Genetic Variability in Wheat

  • A. Shakoor
  • N. I. Hashmi
  • M. Siddique Sadiq
Part of the Basic Life Sciences book series (BLSC, volume 8)

Abstract

An account is given of the genetic variability in primitive wheats collected from the northwest Pakistan. Apart from genetic sources for disease resistance, drought tolerance, and other plant characters, new sources of possible height reduction in wheat were identified and described. The taller-growing primitive wheats have better emergence, perhaps largely because of their longer coleoptiles. A detailed account is given of comparative genetic studies of height-reducing genes, through both conventional genetic analysis techniques and induced mutation breeding procedures. Both approaches demonstrated the effect of height genes on grain size. At the present time there is a linear relationship between plant height and 1000-kernel weight. Possibilities of achieving a breakthrough in wheat yields through increased kernel size in short wheats are discussed.

Keywords

Plant Height Height Reduction Coleoptile Length Common Genetic Background Dwarf Wheat 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • A. Shakoor
    • 1
  • N. I. Hashmi
    • 1
  • M. Siddique Sadiq
    • 1
  1. 1.Nuclear Institute for Agriculture and BiologyLyallpurPakistan

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