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In this experiment, 20 selected maize hybrids from the preliminary trial of 2021, along with two check hybrids (Single Cross 410 and Three-Way Cross 647), were evaluated using a randomized complete block design with four replications in five different locations (Karaj, Mashhad, Kermanshah, Kerman, and Shiraz). The two-year mean comparison of the hybrids for grain yield showed that hybrids No. 15 (KE76009/312×MO17) and No. 10 (KE78015/421×MO17), with grain yields of 14.24 and 13.81 tons per hectare respectively, had the highest grain yields and were identified as superior genotypes. These hybrids showed significantly higher grain yields compared to the check hybrids TWC647 and SC410, which yielded 12.75 and 12.10 tons per hectare, respectively. The superior hybrids did not differ significantly from the check hybrids in terms of days to maturity and grain moisture content. Therefore, provided that these hybrids exhibit resistance to common smut and Fusarium diseases and maintain their yield performance in extension trials, they can be introduced to farmers as new commercial hybrids.
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