Genetic Progress in Wheat Yield and Nitrogen Use Efficiency under Four Nitrogen Rates

The adaptation and performance of CIMMYT's bread wheat germplasm ( Triticum aestivum> L.) under conditions of low N fertility have been questioned because they were developed under medium‐high levels of N fertility. The objectives of this research were to (i) compare the performance of a set of tall vs. semidwarf cultivars developed by CIMMYT that were widely grown by farmers in the Yaqui Valley of Mexico at low and high N fertility, (ii)...