**4. Conclusion**

The results of this study demonstrate that the genotypes with highest values for the parameter mid-senescence (Σ50s) are the most tolerant and adapted genotypes. Based on the mean grain yield ranking, the genotypes Mexicali**75**, Hoggar, and Sooty have the best grain yield. In addition, the screening based on the senescence parameters showed that the genotypes Mexicali**75**, Hoggar, and Sooty are the preferable and adapted genotype. The combination between the rankings based on the GY and senescence parameters demonstrate that the genotypes Mexicali**75**, Hoggar, and Sooty are the best and recommended genotypes under this condition.

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