为进一步丰富陇南市玉米品种种类，助推大面积单产提升，2024年对国家审定的19个玉米品种在位于陇南徽成盆地的成县开展了相关农艺性状、果穗性状、抗逆性、丰产性、品质性状的田间测定，旨在筛选出适宜于陇南市推广种植的玉米新品种。结果表明，供试品种中寸粒88、中夏玉6号表现增产，分别较对照品种先玉335增产12.2%、2.2%；其余品种均较对照品种减产2.5%～38.4%。供试品种中夏玉6号丰产性和抗逆性俱佳，适宜在陇南市徽成盆地及相似气候类型地区推广种植；寸粒88尽管丰产性较好，但抗病性差、倒伏率相对较高，在甘肃陇南大面积推广具有较大风险。其余品种的推广应用尚需进行进一步评价筛选。

To further diversify maize variety resources in Longnan City and facilitate a substantial increase in per-unit-area yield, field trials were conducted to evaluate 19 new national approved maize varieties based on agronomic traits, ear traits, stress resistance, yield performance, and quality traits at Huicheng Basin, Longnan City, in 2024, with the objective of identifying new maize varieties suitable for promotion in this region. Results showed that among the tested varieties, Cunli 88 and Zhongxiayu 6 exhibited yield increases of 12.2% and 2.2%, respectively compared with the control variety Xianyu 335, while the other varieties showed yield decreases ranging from 2.5% to 38.4%. Zhongxiayu 6 demonstrated both excellent yield potential and stress resistance, making it suitable for cultivation in the Huicheng Basin of Longnan City and regions with similar climatic conditions. Although Cunli 88 showed good yield performance, its poor disease resistance and relatively high lodging rate posed risks for large-scale promotion in Longnan, Gansu. Further evaluation is required for other varieties before regional adoption.

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