Abstract
There is increasingly demand of maize as a staple food in poultry industry in Iraq, where the average production of yield 4.5 tons, which is still faint as compared to neighbor countries. 30 of Three-Way Cross Hybrids of Maize along with five parental inbred lines were evaluated in four replications during the 2017 fall season at the research station of Agriculture College/Al-Jadrya, Baghdad to evaluate their performances and estimate the heterosis for grain yield (GY), and related traits. Most of the studied three-way cross hybrids out-yielded their parental inbred lines for the studied traits. TW8 and TW10 were identified as the excellent hybrids with average yield 219 and 214 gm/plant respectively with positive heterosis reached 72 and 62% respectively.
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