At maturity, maize ears were hand harvested to determine yield (14% water content) in each plot with 6 square meters (2 rows × 5 m length). All the harvested plants were surrounded by 2 border rows. Yield components including ear length, ear rows and kernels per row were measured based on 10 selected representative maize ears. After drying kernels in 70 °C to constant weight, 500-grain weight was determined.
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