Resumo

VILLASENOR-MIR, Héctor Eduardo et al. Yield stability and yellow rust infection levels in rainfed wheat in Mexico. Rev. Mex. Cienc. Agríc [online]. 2025, vol.16, n.4, e3688.  Epub 30-Set-2025. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v16i4.3688.

Yellow rust is the biotic factor that most affects the yield of rainfed wheat in the High Valleys of Mexico, and currently, the most effective management strategy for this disease is the use of resistant varieties, which must also be stable in grain yield when exposed to this rust. In order to understand the correlation between yield stability and the severity of yellow rust, between 2017 and 2020, trials were established in 37 localities in the High Valleys of Mexico, where 14 wheat genotypes were evaluated. The correlation between yield and the incidence of yellow rust was analyzed and different stability parameters were determined. A moderate negative correlation was found between yield and disease incidence. The advanced lines Kone ‘s’, Nely ‘s’, Terre ‘s’, and the varieties Texcoco F2016 and Valles F2015 were the most stable in yield and the most resistant to rust, whereas the least stable and the most susceptible to the disease were Náhuatl F2000, Triunfo F2004, and Nana F2007, so they should no longer be recommended for sowing.

Palavras-chave : Puccinia striiformis; Triticum aestivum; correlation; High Valleys.

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