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Progress in Breeding Wheat for Yield and Adaptation in Global Drought Affected Environments

Richard M. Trethowan*, Maarten van Ginkel and Sanjaya Rajaram

Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600 Mexico DF, Mexico



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Fig. 1. (A) The mean of the five highest yielding entries from each site and year expressed as a percentage of the trial mean ( %TM) compared with change in the trial mean (TM) and local check mean (LC): ESWYT sites yielding less than 4 Mg ha-1. (B) The mean of the five highest yielding entries from each site and year expressed as %TM compared with change in the TM and LC: SAWYT sites yielding less than 4 Mg ha-1.

 


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Fig. 2. (A) The mean of the five highest yielding entries from each site and year expressed as a percentage of the trial mean ( %TM) compared with change in the trial mean (TM) and local check mean (LC): ESWYT sites yielding 4 Mg ha-1 or greater. (B) The mean of the five highest yielding entries from each site and year expressed as %TM compared with change in TM and LC: SAWYT sites yielding 4 Mg ha-1 or greater.

 



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Fig. 3. (A) The mean of the five highest yielding lines expressed as a percentage of the trial mean (%TM) compared with the trial mean (TM) and the mean of the local check (LC): CIANO drought trials. (B) The mean of the five highest yielding lines expressed as %TM compared with TM and the mean LC: Argentina, Marcos Juarez. Fig. 3. (C) The mean of the five highest yielding lines expressed as %TM compared with TM and the mean of LC: Syria, Aleppo. (D) The mean of the five highest yielding lines expressed as %TM compared with TM and the mean of LC: Portugal, Elvas.

 





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